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|
#!/bin/sh
#
# Check that the process ID can be written to a file as described in the
# manual.
# Allow all tests to be skipped, e.g. during a release build
test "${SKIP_ALL_TESTS}" = "1" && exit 77
true "${testSubject:?not set - call this from 'make check'}"
true "${workFile1:?not set - call this from 'make check'}"
# Check we can run "kill -s 0".
if ! kill -s 0 $$ >/dev/null 2>&1; then
echo "cannot check process existence with \`kill -s 0'"
exit 77
fi
dd if=/dev/zero bs=150 count=1 2>/dev/null \
| "${testSubject}" -q -L 50 -P "${workFile1}" >/dev/null 2>/dev/null \
&
testPid="$!"
sleep 1
storedPid=$(cat "${workFile1}" 2>/dev/null)
pidValid="0"
kill -s 0 "${storedPid}" 2>/dev/null && pidValid="1"
wait
sleep 1
if test -s "${workFile1}"; then
echo "PID file was not removed on exit"
exit 1
fi
true > "${workFile1}"
if ! test "${testPid}" = "${storedPid}"; then
echo "stored PID [${storedPid}] did not match actual PID [${testPid}]"
exit 1
fi
if ! test "${pidValid}" = "1"; then
echo "stored PID [${storedPid}] was not reachable"
exit 1
fi
exit 0
|
