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generic/131: dynamically allocate tcp listen port to avoid port clashes

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Current port selection algorithm is bound to have port clashes. To
eliminate clashes, let server pick an unused port and report it on
stdout.

Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Tahsin Erdogan
2016-06-08 11:52:41 -07:00
committed by Eryu Guan
parent 795ea36a18
commit b936f63c27
2 changed files with 22 additions and 11 deletions
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tests/generic/131
+7 -10
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@@ -49,21 +49,18 @@ _require_test_fcntl_advisory_locks
TESTFILE=$TEST_DIR/lock_file
# Grab a port which is hopefully unused
if [ $$ -gt 1024 -a $$ -lt 32000 ]; then
PORT=$$
elif [ $$ -lt 1024 ]; then
PORT=$(($$+1024))
elif [ $$ -gt 32000 ]; then
PORT=$(($$%30000+1024))
fi
# Start the server
src/locktest -p $PORT $TESTFILE 2>&1 > $TEST_DIR/server.out &
src/locktest $TESTFILE 2>&1 > $TEST_DIR/server.out &
locktest_pid1=$!
sleep 1
PORT=$(cat $TEST_DIR/server.out | grep "^server port: " | awk '{print $3}')
if [ -z $PORT ]; then
echo "Could not get server port"
exit 1
fi
# Start the client
src/locktest -p $PORT -h localhost $TESTFILE 2>&1 > $TEST_DIR/client.out
locktest_pid2=$!