mirror_corosync/init/generic.in
Andrew Beekhof e725dd3edd Correctly determine current state in init script
If two stop actions are ever performed simultaneously, then neither will terminate.
With the default implementaiton of __pids_pidof, the status() function from 
/etc/init.d/functions incorrectly thinks the other stop action is a real 
corosync process.


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2639 fd59a12c-fef9-0310-b244-a6a79926bd2f
2009-12-15 11:52:48 +00:00

158 lines
2.9 KiB
Bash
Executable File

#!/bin/bash
# Authors:
# Andrew Beekhof <abeekhof@redhat.com>
# Fabio M. Di Nitto <fdinitto@redhat.com>
#
# License: Revised BSD
# chkconfig: - 20 20
# description: Corosync Cluster Engine
# processname: corosync
#
### BEGIN INIT INFO
# Provides: corosync
# Required-Start: $network
# Should-Start: $syslog
# Required-Stop: $network
# Default-Start:
# Default-Stop:
# Short-Description: Starts and stops Corosync Cluster Engine.
# Description: Starts and stops Corosync Cluster Engine.
### END INIT INFO
desc="Corosync Cluster Engine"
prog="corosync"
# set secure PATH
PATH="/sbin:/bin:/usr/sbin:/usr/bin:@SBINDIR@"
success()
{
echo -ne "[ OK ]\r"
}
failure()
{
echo -ne "[FAILED]\r"
}
status()
{
pid=$(pidof $1 2>/dev/null)
rtrn=$?
if [ $rtrn -ne 0 ]; then
echo "$1 is stopped"
else
echo "$1 (pid $pid) is running..."
fi
return $rtrn
}
# rpm based distros
if [ -d @SYSCONFDIR@/sysconfig ]; then
[ -f @INITDDIR@/functions ] && . @INITDDIR@/functions
[ -f @SYSCONFDIR@/sysconfig/$prog ] && . @SYSCONFDIR@/sysconfig/$prog
[ -z "$LOCK_FILE" ] && LOCK_FILE="@LOCALSTATEDIR@/lock/subsys/$prog"
fi
# deb based distros
if [ -d @SYSCONFDIR@/default ]; then
[ -f @SYSCONFDIR@/default/$prog ] && . @SYSCONFDIR@/default/$prog
[ -z "$LOCK_FILE" ] && LOCK_FILE="@LOCALSTATEDIR@/lock/$prog"
fi
# The version of __pids_pidof in /etc/init.d/functions calls pidof with -x
# This means it matches scripts, including this one.
# Redefine it here so that status (from the same file) works.
# Otherwise simultaneous calls to stop() will loop forever
__pids_pidof() {
pidof -c -o $$ -o $PPID -o %PPID "$1" || \
pidof -c -o $$ -o $PPID -o %PPID "${1##*/}"
}
start()
{
echo -n "Starting $desc ($prog): "
# most recent distributions use tmpfs for @LOCALSTATEDIR@/run
# to avoid to clean it up on every boot.
# they also assume that init scripts will create
# required subdirectories for proper operations
mkdir -p @LOCALSTATEDIR@/run
if status $prog > /dev/null 2>&1; then
success
else
$prog > /dev/null 2>&1
# give it time to fail
sleep 2
if status $prog > /dev/null 2>&1; then
touch $LOCK_FILE
pidof $prog > @LOCALSTATEDIR@/run/$prog.pid
success
else
failure
rtrn=1
fi
fi
echo
}
stop()
{
! status $prog > /dev/null 2>&1 && return
echo -n "Signaling $desc ($prog) to terminate: "
kill -TERM $(pidof $prog) > /dev/null 2>&1
success
echo
echo -n "Waiting for $prog services to unload:"
while status $prog > /dev/null 2>&1; do
sleep 1
echo -n "."
done
rm -f $LOCK_FILE
rm -f @LOCALSTATEDIR@/run/$prog.pid
success
echo
}
restart()
{
stop
start
}
rtrn=0
case "$1" in
start)
start
;;
restart|reload|force-reload)
restart
;;
condrestart|try-restart)
if status $prog > /dev/null 2>&1; then
restart
fi
;;
status)
status $prog
rtrn=$?
;;
stop)
stop
;;
*)
echo "usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status}"
rtrn=2
;;
esac
exit $rtrn