rsyslog/tests/omprog-restart-terminated.sh
Joan Sala 1089bd4146 omprog: refactor tests, fix child closing issues
Refactor omprog tests. Fix sync issues in these tests by
using the feedback mode (confirmMessages=on) to synchronize
the test with the external program. Closes #2403 (I hope)

Fix omprog not properly closing child process when
signalOnClose=on. Needed for the new tests. Closes #2599

Fix omprog not waiting for the child process to terminate
when signalOnClose=off. Needed for the new tests. Closes #2600

Close all fds before executing the child even when valgrind
is enabled (--enable-valgrind). Needed for the new tests.

Fix memory leak when the xxxTransactionMark parameters were
used.
2018-04-14 23:41:03 +02:00

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#!/bin/bash
# This file is part of the rsyslog project, released under ASL 2.0
# This test checks that omprog restarts the external program when it
# terminates prematurely, and that it does so without leaking file
# descriptors. Two cases are checked: termination of the program when
# omprog is going to write to the pipe (to send a message to the
# program), and when omprog is going to read from the pipe (when it
# is expecting the program to confirm the last message).
. $srcdir/diag.sh init
. $srcdir/diag.sh check-command-available lsof
. $srcdir/diag.sh startup omprog-restart-terminated.conf
. $srcdir/diag.sh wait-startup
. $srcdir/diag.sh injectmsg 0 1
. $srcdir/diag.sh wait-queueempty
. $srcdir/diag.sh getpid
start_fd_count=$(lsof -p $pid | wc -l)
. $srcdir/diag.sh injectmsg 1 1
. $srcdir/diag.sh injectmsg 2 1
. $srcdir/diag.sh wait-queueempty
pkill -USR1 -f omprog-restart-terminated-bin.sh
sleep .1
. $srcdir/diag.sh injectmsg 3 1
. $srcdir/diag.sh injectmsg 4 1
. $srcdir/diag.sh wait-queueempty
pkill -TERM -f omprog-restart-terminated-bin.sh
sleep .1
. $srcdir/diag.sh injectmsg 5 1
. $srcdir/diag.sh injectmsg 6 1
. $srcdir/diag.sh injectmsg 7 1
. $srcdir/diag.sh wait-queueempty
pkill -USR1 -f omprog-restart-terminated-bin.sh
sleep .1
. $srcdir/diag.sh injectmsg 8 1
. $srcdir/diag.sh injectmsg 9 1
. $srcdir/diag.sh wait-queueempty
end_fd_count=$(lsof -p $pid | wc -l)
child_pid=$(ps -ef | grep "[o]mprog-restart-terminated-bin.sh" | awk '{print $2}')
child_netstat=$(netstat -p | grep "$child_pid/bash")
. $srcdir/diag.sh shutdown-when-empty
. $srcdir/diag.sh wait-shutdown
expected_output="Starting
Received msgnum:00000000:
Received msgnum:00000001:
Received msgnum:00000002:
Received SIGUSR1, will terminate after the next message
Received msgnum:00000003:
Terminating without confirming the last message
Starting
Received msgnum:00000003:
Received msgnum:00000004:
Received SIGTERM, terminating
Starting
Received msgnum:00000005:
Received msgnum:00000006:
Received msgnum:00000007:
Received SIGUSR1, will terminate after the next message
Received msgnum:00000008:
Terminating without confirming the last message
Starting
Received msgnum:00000008:
Received msgnum:00000009:
Terminating normally"
written_output=$(<rsyslog.out.log)
if [[ "$expected_output" != "$written_output" ]]; then
echo unexpected omprog script output:
echo "$written_output"
. $srcdir/diag.sh error-exit 1
fi
if [[ "$start_fd_count" != "$end_fd_count" ]]; then
echo "file descriptor leak: started with $start_fd_count open files, ended with $end_fd_count"
. $srcdir/diag.sh error-exit 1
fi
# Check also that the child process does not inherit open fds from
# rsyslog (apart from the pipe), by checking it has no open sockets.
# During the test, rsyslog has at least one socket open, by imdiag
# (port 13500).
if [[ "$child_netstat" != "" ]]; then
echo "child process has socket(s) open (should have none):"
echo "$child_netstat"
. $srcdir/diag.sh error-exit 1
fi
. $srcdir/diag.sh exit