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AT_BANNER([daemon unit tests - C])

AT_SETUP([daemon])
OVSDB_INIT([db])
AT_CAPTURE_FILE([pid])
AT_CAPTURE_FILE([expected])
# Start the daemon and wait for the pidfile to get created
# and that its contents are the correct pid.
AT_CHECK([ovsdb-server --pidfile="`pwd`"/pid --remote=punix:socket --unixctl="`pwd`"/unixctl db& echo $! > expected], [0])
OVS_WAIT_UNTIL([test -s pid], [kill `cat expected`])
AT_CHECK(
  [pid=`cat pid` && expected=`cat expected` && test "$pid" = "$expected"],
  [0], [], [], [kill `cat expected`])
AT_CHECK([kill -0 `cat pid`], [0], [], [], [kill `cat expected`])
# Kill the daemon and make sure that the pidfile gets deleted.
kill `cat expected`
OVS_WAIT_WHILE([kill -0 `cat expected`])
AT_CHECK([test ! -e pid])
AT_CLEANUP

AT_SETUP([daemon --monitor])
OVSDB_INIT([db])
AT_CAPTURE_FILE([pid])
AT_CAPTURE_FILE([parent])
AT_CAPTURE_FILE([parentpid])
AT_CAPTURE_FILE([newpid])
# Start the daemon and wait for the pidfile to get created.
AT_CHECK([ovsdb-server --monitor --pidfile="`pwd`"/pid --remote=punix:socket --unixctl="`pwd`"/unixctl db& echo $! > parent], [0])
OVS_WAIT_UNTIL([test -s pid], [kill `cat parent`])
# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
AT_CHECK([kill -0 `cat pid`], [0], [], [], [kill `cat parent`])
AT_CHECK([ps -o ppid= -p `cat pid` > parentpid],
  [0], [], [], [kill `cat parent`])
AT_CHECK(
  [parentpid=`cat parentpid` &&
   parent=`cat parent` &&
   test $parentpid = $parent],
  [0], [], [], [kill `cat parent`])
# Avoid a race between pidfile creation and notifying the parent,
# which can easily trigger if ovsdb-server is slow (e.g. due to valgrind).
OVS_WAIT_UNTIL(
  [ovs-appctl --timeout=10 -t "`pwd`/unixctl" version],
  [kill `cat pid`])
# Kill the daemon process, making it look like a segfault,
# and wait for a new child process to get spawned.
AT_CHECK([cp pid oldpid], [0], [], [], [kill `cat parent`])
AT_CHECK([kill -SEGV `cat pid`], [0], [], [ignore], [kill `cat parent`])
OVS_WAIT_WHILE([kill -0 `cat oldpid`], [kill `cat parent`])
OVS_WAIT_UNTIL([test -s pid && test `cat pid` != `cat oldpid`],
  [kill `cat parent`])
AT_CHECK([cp pid newpid], [0], [], [], [kill `cat parent`])
# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
AT_CHECK([ps -o ppid= -p `cat pid` > parentpid],
  [0], [], [], [kill `cat parent`])
AT_CHECK(
  [parentpid=`cat parentpid` &&
   parent=`cat parent` &&
   test $parentpid = $parent],
  [0], [], [], [kill `cat parent`])
# 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 `cat pid`], [0], [], [ignore], [kill `cat parent`])
OVS_WAIT_WHILE([kill -0 `cat parent` || kill -0 `cat newpid` || test -e pid],
  [kill `cat parent`])
AT_CLEANUP

AT_SETUP([daemon --detach])
AT_CAPTURE_FILE([pid])
OVSDB_INIT([db])
# 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([ovsdb-server --detach --no-chdir --pidfile="`pwd`"/pid --remote=punix:socket --unixctl="`pwd`"/unixctl db], [0])
AT_CHECK([test -s pid])
AT_CHECK([kill -0 `cat pid`])
# Kill the daemon and make sure that the pidfile gets deleted.
cp pid saved-pid
kill `cat pid`
OVS_WAIT_WHILE([kill -0 `cat saved-pid`])
AT_CHECK([test ! -e pid])
AT_CLEANUP

AT_SETUP([daemon --detach --monitor])
m4_define([CHECK],
  [AT_CHECK([$1], [$2], [$3], [$4], [kill `cat daemon monitor`])])
OVSDB_INIT([db])
AT_CAPTURE_FILE([daemon])
AT_CAPTURE_FILE([olddaemon])
AT_CAPTURE_FILE([newdaemon])
AT_CAPTURE_FILE([monitor])
AT_CAPTURE_FILE([newmonitor])
AT_CAPTURE_FILE([init])
# 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([ovsdb-server --detach --no-chdir --pidfile="`pwd`"/daemon --monitor --remote=punix:socket --unixctl="`pwd`"/unixctl db], [0])
AT_CHECK([test -s daemon])
# 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([kill -0 `cat daemon`])
CHECK([ps -o ppid= -p `cat daemon` > monitor])
CHECK([kill -0 `cat monitor`])
CHECK([ps -o ppid= -p `cat monitor` > init])
CHECK([test `cat init` = 1])
# Kill the daemon process, making it look like a segfault,
# and wait for a new daemon process to get spawned.
CHECK([cp daemon olddaemon])
CHECK([kill -SEGV `cat daemon`], [0])
OVS_WAIT_WHILE([kill -0 `cat olddaemon`], [kill `cat olddaemon daemon`])
OVS_WAIT_UNTIL([test -s daemon && test `cat daemon` != `cat olddaemon`],
  [kill `cat olddaemon daemon`])
CHECK([cp daemon newdaemon])
# Check that the pidfile names a running process,
# and that the parent process of that process is our child process.
CHECK([kill -0 `cat daemon`])
CHECK([diff olddaemon newdaemon], [1], [ignore])
CHECK([ps -o ppid= -p `cat daemon` > newmonitor])
CHECK([diff monitor newmonitor])
CHECK([kill -0 `cat newmonitor`])
CHECK([ps -o ppid= -p `cat newmonitor` > init])
CHECK([test `cat init` = 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.
CHECK([kill `cat daemon`], [0], [], [ignore])
OVS_WAIT_WHILE(
  [kill -0 `cat monitor` || kill -0 `cat newdaemon` || test -e daemon],
  [kill `cat monitor newdaemon`])
m4_undefine([CHECK])
AT_CLEANUP

AT_SETUP([daemon --detach startup errors])
AT_CAPTURE_FILE([pid])
OVSDB_INIT([db])
AT_CHECK([ovsdb-server --detach --no-chdir --pidfile="`pwd`"/pid --unixctl="`pwd`"/nonexistent/unixctl db], [1], [], [stderr])
AT_CHECK([grep 'ovsdb-server: could not initialize control socket' stderr],
  [0], [ignore], [])
AT_CHECK([test ! -s pid])
AT_CLEANUP

AT_SETUP([daemon --detach --monitor startup errors])
AT_CAPTURE_FILE([pid])
OVSDB_INIT([db])
AT_CHECK([ovsdb-server --detach --no-chdir --pidfile="`pwd`"/pid --monitor --unixctl="`pwd`"/nonexistent/unixctl db], [1], [], [stderr])
AT_CHECK([grep 'ovsdb-server: could not initialize control socket' stderr],
  [0], [ignore], [])
AT_CHECK([test ! -s pid])
AT_CLEANUP
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