AT_BANNER([daemon unit tests - Python])

m4_define([DAEMON_PYN],
  [AT_SETUP([daemon - $1])
   AT_SKIP_IF([test $2 = no])
   # Skip this test for Windows, echo $! gives shell pid instead of parent process
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])
   AT_KEYWORDS([python daemon])

   on_exit 'kill $(cat *.pid)'
   pidfile=test-daemon.py.pid

   # Start the daemon and wait for the pidfile to get created
   # and that its contents are the correct pid.
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile & echo $!], [0], [stdout])
   pid=$(cat stdout)

   OVS_WAIT_UNTIL([test -s $pidfile], [kill $pid])
   AT_CHECK([test $pid = $(cat $pidfile)])
   AT_CHECK([kill -0 $pid])

   # Kill the daemon and make sure that the pidfile gets deleted.
   kill $pid
   OVS_WAIT_WHILE([kill -0 $pid])
   AT_CHECK([test ! -e $pidfile])
   AT_CLEANUP])

DAEMON_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_MONITOR_PYN],
  [AT_SETUP([daemon --monitor - $1])
   AT_SKIP_IF([test $2 = no])

   # Skip this test for Windows, echo $! gives shell pid instead of parent process
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])

   on_exit 'kill $(cat *.pid)'
   pidfile=test-daemon.py.pid

   # Start the daemon and wait for the pidfile to get created.
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile --monitor & echo $!], [0], [stdout])
   monitor=$(cat stdout)
   OVS_WAIT_UNTIL([test -s $pidfile])
   child=$(cat $pidfile)

   # Check that the pidfile names a running process,
   # and that the parent process of that process is our child process.
   check_ancestors $child $monitor

   # Kill the daemon process, making it look like a segfault,
   # and wait for a new child process to get spawned.
   AT_CHECK([kill -SEGV $child])
   OVS_WAIT_WHILE([kill -0 $child])
   OVS_WAIT_UNTIL([test -s $pidfile && test $(cat $pidfile) != $child])
   child2=$(cat $pidfile)

   # Check that the pidfile names a running process,
   # and that the parent process of that process is our child process.
   check_ancestors $child2 $monitor

   # Kill the daemon process with SIGTERM, and wait for the daemon
   # and the monitor processes to go away and the pidfile to get deleted.
   AT_CHECK([kill $child2])
   OVS_WAIT_WHILE([kill -0 $monitor || kill -0 $child2 || test -e $pidfile])
   AT_CLEANUP])

DAEMON_MONITOR_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_MONITOR_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_MONITOR_RESTART_PYN],
  [AT_SETUP([daemon --monitor restart exit code - $1])
   AT_SKIP_IF([test $2 = no])
   # Skip this test for Windows, echo $! gives shell pid instead of parent process
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])

   on_exit 'kill $(cat *.pid)'
   pidfile=test-daemon.py.pid

   # Start the daemon and wait for the pidfile to get created.
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile --monitor & echo $!], [0], [stdout])
   monitor=$(cat stdout)
   OVS_WAIT_UNTIL([test -s $pidfile])
   child=$(cat $pidfile)

   # Check that the pidfile names a running process,
   # and that the parent process of that process is our child process.
   check_ancestors $child $monitor

   # HUP the daemon process causing it to throw an exception,
   # and wait for a new child process to get spawned.
   AT_CHECK([kill -HUP $child])
   OVS_WAIT_WHILE([kill -0 $child])
   OVS_WAIT_UNTIL([test -s $pidfile && test $child != $(cat $pidfile)])
   child2=$(cat $pidfile)

   # Check that the pidfile names a running process,
   # and that the parent process of that process is our child process.
   check_ancestors $child2 $monitor

   # Kill the daemon process with SIGTERM, and wait for the daemon
   # and the monitor processes to go away and the pidfile to get deleted.
   AT_CHECK([kill $child2])
   OVS_WAIT_WHILE([kill -0 $monitor || kill -0 $child2 || test -e $pidfile])
   AT_CLEANUP])

DAEMON_MONITOR_RESTART_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_MONITOR_RESTART_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_DETACH_PYN],
  [AT_SETUP([daemon --detach - $1])
   AT_SKIP_IF([test $2 = no])

   # Skip this test for Windows, the pid file not removed if the daemon is killed
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])

   on_exit 'kill $(cat *.pid)'
   pidfile=test-daemon.py.pid

   # Start the daemon and make sure that the pidfile exists immediately.
   # We don't wait for the pidfile to get created because the daemon is
   # supposed to do so before the parent exits.
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile --detach --no-chdir], [0])
   AT_CHECK([test -s $pidfile])
   pid=$(cat $pidfile)
   check_ancestors $pid 1

   # Kill the daemon and make sure that the pidfile gets deleted.
   AT_CHECK([kill $pid])
   OVS_WAIT_WHILE([kill -0 $pid])
   AT_CHECK([test ! -e $pidfile])
   AT_CLEANUP])

DAEMON_DETACH_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_DETACH_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_DETACH_MONITOR_PYN],
  [AT_SETUP([daemon --detach --monitor - $1])
   AT_SKIP_IF([test $2 = no])

   # Skip this test for Windows, uses Linux specific kill signal
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])

   on_exit 'kill $(cat *.pid)'
   pidfile=test-daemon.py.pid

   # Start the daemon and make sure that the pidfile exists immediately.
   # We don't wait for the pidfile to get created because the daemon is
   # supposed to do so before the parent exits.
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile --detach --no-chdir --monitor], [0])
   AT_CHECK([test -s $pidfile])
   child=$(cat $pidfile)
   AT_CHECK([parent_pid $child], [0], [stdout])
   monitor=$(cat stdout)

   # Check that the pidfile names a running process,
   # and that the parent process of that process is a running process,
   # and that the parent process of that process is init.
   check_ancestors $child $monitor 1

   # Kill the daemon process, making it look like a segfault,
   # and wait for a new daemon process to get spawned.
   AT_CHECK([kill -SEGV $child])
   OVS_WAIT_WHILE([kill -0 $child])
   OVS_WAIT_UNTIL([test -s $pidfile && test $(cat $pidfile) != $child])
   child2=$(cat $pidfile)

   # Check that the pidfile names a running process,
   # and that the parent process of that process is our child process.
   check_ancestors $child2 $monitor 1

   # Kill the daemon process with SIGTERM, and wait for the daemon
   # and the monitor processes to go away and the pidfile to get deleted.
   AT_CHECK([kill $child2])
   OVS_WAIT_WHILE([kill -0 $child2 || kill -0 $monitor || test -e $pidfile])
   AT_CLEANUP])

DAEMON_DETACH_MONITOR_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_DETACH_MONITOR_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_DETACH_ERRORS_PYN],
  [AT_SETUP([daemon --detach startup errors - $1])
   AT_SKIP_IF([test $2 = no])
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile --detach --no-chdir --bail], [1], [], [stderr])
   AT_CHECK([grep 'test-daemon.py: exiting after daemonize_start() as requested' stderr],
     [0], [ignore])
   AT_CHECK([test ! -s test-daemon.py.pid])
   AT_CLEANUP])

DAEMON_DETACH_ERRORS_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_DETACH_ERRORS_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_DETACH_MONITOR_ERRORS_PYN],
  [AT_SETUP([daemon --detach --monitor startup errors - $1])
   AT_SKIP_IF([test $2 = no])
   AT_CAPTURE_FILE([pid])
   AT_CHECK([$3 $srcdir/test-daemon.py --pidfile --detach --no-chdir --monitor --bail], [1], [], [stderr])
   AT_CHECK([grep 'test-daemon.py: exiting after daemonize_start() as requested' stderr],
     [0], [ignore])
   AT_CHECK([test ! -s test-daemon.py.pid])
   AT_CLEANUP])

DAEMON_DETACH_MONITOR_ERRORS_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_DETACH_MONITOR_ERRORS_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_DETACH_CLOSES_FDS_PYN],
  [AT_SETUP([daemon --detach closes standard fds - $1])
   AT_SKIP_IF([test $2 = no])

   # Skip this test for Windows, uses Linux specific kill signal
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])

   AT_CHECK([(yes 2>stderr; echo $? > status) | $3 $srcdir/test-daemon.py --pidfile --detach --no-chdir])
   AT_CHECK([kill $(cat test-daemon.py.pid)])
   AT_CHECK([test -s status])
   if grep '[[bB]]roken pipe' stderr >/dev/null 2>&1; then
     # Something in the environment caused SIGPIPE to be ignored, but
     # 'yes' at least told us that it got EPIPE.  Good enough; we know
     # that stdout was closed.
     :
   else
     # Otherwise make sure that 'yes' died from SIGPIPE.
     AT_CHECK([kill -l `cat status`], [0], [PIPE
])
   fi
   AT_CLEANUP])

DAEMON_DETACH_CLOSES_FDS_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_DETACH_CLOSES_FDS_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])

m4_define([DAEMON_DETACH_MONITOR_CLOSES_FDS_PYN],
  [AT_SETUP([daemon --detach --monitor closes standard fds - $1])
   AT_SKIP_IF([test $2 = no])
   # Skip this test for Windows, uses Linux specific kill signal
   AT_SKIP_IF([test "$IS_WIN32" = "yes"])
   AT_CHECK([(yes 2>stderr; echo $? > status) | $3 $srcdir/test-daemon.py --pidfile --detach --no-chdir], [0], [], [])
   AT_CHECK([kill $(cat test-daemon.py.pid)])
   AT_CHECK([test -s status])
   if grep '[[bB]]roken pipe' stderr >/dev/null 2>&1; then
     # Something in the environment caused SIGPIPE to be ignored, but
     # 'yes' at least told us that it got EPIPE.  Good enough; we know
     # that stdout was closed.
     :
   else
     # Otherwise make sure that 'yes' died from SIGPIPE.
     AT_CHECK([kill -l `cat status`], [0], [PIPE
])
   fi
   AT_CLEANUP])

DAEMON_DETACH_MONITOR_CLOSES_FDS_PYN([Python2], [$HAVE_PYTHON2], [$PYTHON2])
DAEMON_DETACH_MONITOR_CLOSES_FDS_PYN([Python3], [$HAVE_PYTHON3], [$PYTHON3])