#!/bin/sh
#
# pulse		This script handles the starting and stopping of the various
#		clustering services in Red Hat Linux.
#
# chkconfig: - 60 10
# description:  pulse is the controlling daemon that spawns off the lvs \
#		daemon as well as heartbeating and monitoring of services \
#		on the real servers.
# processname: pulse
# pidfile: /var/run/pulse.pid
# config: /etc/sysconfig/ha/lvs.cf

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
if [ ${NETWORKING} = "no" ] ; then
	exit 1
fi

if [ -f /etc/sysconfig/pulse ]; then
	. /etc/sysconfig/pulse
fi

if [ ! -f /usr/sbin/pulse ]  ; then
	exit 5
fi

if [ ! -f /etc/sysconfig/ha/lvs.cf ] ; then
	exit 6
fi

RETVAL=0
# DELAYRANGE is set in 1/10 of seconds
DELAYRANGE=50

function delay {
	if [ -n "$DELAY" ]; then
		if [ "random" = "$DELAY" ]; then
			number=$RANDOM
			let "number %= $DELAYRANGE"
			number=`echo $number | sed 's/\(.\)$/.\1/' `
			DELAY=$number
		fi
	else
		DELAY=0
	fi

	sleep $DELAY
}


# See how we were called.
case "$1" in
  start)
        echo -n "Starting pulse: "
        delay
        daemon pulse $OPTIONS
	RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/pulse
        ;;

  stop)
        echo -n "Shutting down pulse: "
	killproc pulse
	RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/pulse
        ;;

  status)
	status pulse
	RETVAL=$?
	;;

  restart)
	$0 stop
	$0 start
	RETVAL=$?
	;;

  condrestart)
	$0 status
	if [ $? = 0 ]; then
	    $0 restart
	fi
	RETVAL=0
	;;

  reload)
	echo -n "Reloading pulse: "
	killproc pulse -HUP
	RETVAL=$?
	;;

  *)
        echo "Usage: pulse {start|stop|status|restart|condrestart|reload}"
        exit 1
esac

exit $RETVAL