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build_all_targets: limit concurrent jobs #11

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build_all_targets: limit concurrent jobs #11

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10 changes: 10 additions & 0 deletions build_all_targets
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,10 @@ FEED="$2"
OUTPUT_DIR="$3"
BUILD_PARALLEL="$4"

MAX_JOBS=6
CUR_JOBS=0
export COUNT_FILE="/tmp/count.tmp"

# check for dependencies
DEPS="docker-hub docker"

Expand Down Expand Up @@ -54,8 +58,14 @@ for key in ${!archs[@]}; do
SDK="${archs[${key}]}"
[ "$OPENWRT_VERSION" != "snapshot" ] && SDK+="-$OPENWRT_VERSION"
if [ -n "$BUILD_PARALLEL" ]; then
CUR_JOBS=$(( $CUR_JOBS + 1 ))
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CUR_JOBS is only increased? When is CUR_JOBS decreased again?

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Right, I had totally forget this. I added that in the new version. Every process decreases the counter in the temp-file whenever it finishes.

echo $CUR_JOBS > $COUNT_FILE
(./build_feed "$SDK" "$FEED" "$OUTPUT_DIR" PARALLEL) &
else
./build_feed "$SDK" "$FEED" "$OUTPUT_DIR"
fi
while [ $CUR_JOBS -ge $MAX_JOBS ]; do
sleep 20
CUR_JOBS=$(cat $COUNT_FILE)
done
done
4 changes: 4 additions & 0 deletions build_feed
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Expand Up @@ -43,5 +43,9 @@ else
"$IMAGE" \
./build_feed incontainer
fi
# decrement job counter
CUR_JOBS=$(cat $COUNT_FILE)
CUR_JOBS=$(( $CUR_JOBS -1 ))
echo $CUR_JOBS > $COUNT_FILE
fi