#!/bin/bash

# Authors:
#  Andrew Beekhof <abeekhof@redhat.com>
#  Fabio M. Di Nitto <fdinitto@redhat.com>
#
# License: Revised BSD

# chkconfig: - 20 20
# description: OpenAIS
# processname: corosync
#
### BEGIN INIT INFO
# Provides:		openais
# Required-Start:	$network
# Should-Start:		$syslog
# Required-Stop:	$network
# Default-Start:
# Default-Stop:
# Short-Description:	Starts and stops OpenAIS.
# Description:		Starts and stops OpenAIS.
### END INIT INFO

desc="OpenAIS"
prog="openais"
exec="aisexec"
proc="corosync"

# set secure PATH
PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin"

success()
{
	gprintf "[  OK  ]\r\n"
}

failure()
{
	gprintf "[FAILED]\r\n"
}

status()
{
	pid=$(pidof $1 2>/dev/null)
	rtrn=$?
	if [ $rtrn -ne 0 ]; then
		gprintf "%s is stopped\n" "$1"
	else
		gprintf "%s (pid %s) is running...\n" "$1" "$pid"
	fi
	return $rtrn
}

# rpm based distros
if [ -d /etc/sysconfig ]; then
	[ -f /etc/init.d/functions ] && . /etc/init.d/functions
	[ -f /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
	[ -z "$LOCK_FILE" ] && LOCK_FILE="/var/lock/subsys/$prog"
fi

# deb based distros
if [ -d /etc/default ]; then
	[ -f /etc/default/$prog ] && . /etc/default/$prog
	[ -z "$LOCK_FILE" ] && LOCK_FILE="/var/lock/$prog"
fi

start()
{
	gprintf "Starting %s (%s): " "$desc" "$exec"

	# most recent distributions use tmpfs for /var/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 /var/run

	if status $proc > /dev/null 2>&1; then
		success
	else
		$exec > /dev/null 2>&1

		# give it time to fail
		sleep 2
		if status $proc > /dev/null 2>&1; then
			touch $LOCK_FILE
			pidof $proc > /var/run/$prog.pid
			success
		else
			failure
			rtrn=1
		fi
	fi
	echo
}

stop()
{
	! status $proc > /dev/null 2>&1 && return

	gprintf "Signaling %s (%s) to terminate: " "$desc" "$prog"
	kill -TERM $(pidof $proc) > /dev/null 2>&1
	success
	echo

	gprintf "Waiting for %s services to unload:" "$prog"
	while status $proc > /dev/null 2>&1; do
		sleep 1
		gprintf "."
	done

	rm -f $LOCK_FILE
	rm -f /var/run/$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
;;
*)
	gprintf "usage: %s {start|stop|restart|reload|force-reload|condrestart|try-restart|status}\n" "$0"
	rtrn=2
;;
esac

exit $rtrn