#! /bin/sh
# Copyright (c) 1995-2001 SuSE GmbH Nuernberg, Germany.
#
# Author: Hannes Reinecke <feedback@suse.de>
#
# init.d/routed
#
#   and symbolic its link
#
# /usr/sbin/rcrouted
#
### BEGIN INIT INFO
# Provides:          multipathd
# Required-Start:    $syslog
# Required-Stop:
# Default-Start:     3 5
# Default-Stop:	     0 1 2 4 6
# Description:       Starts multipath daemon
### END INIT INFO

PATH=/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/sbin/multipathd
PIDFILE=/var/run/multipathd.pid

# Set the maximum number of open files
MAX_OPEN_FDS=4096

test -x $DAEMON || exit 5

. /etc/rc.status

# First reset status of this service
rc_reset

case "$1" in
    start)
	echo -n "Starting multipathd"

	modprobe dm-multipath

	# Set the maximum number of open files
	if [ -n "$MAX_OPEN_FDS" ] ; then
	    ulimit -n $MAX_OPEN_FDS
	fi

	if [ -f $PIDFILE ]; then
		PID="$(cat $PIDFILE)"
		PROCNAME="$(ps -o cmd --no-headers $PID)"
	fi

	if [ "$PROCNAME" != "$DAEMON" ]; then
		$DAEMON
	fi
	
	# Remember status and be verbose
	rc_status -v
	sleep 1
	;;
    stop)
	echo -n "Shutting down multipathd"
	# Because of the way how multipathd sets up its own namespace
	# and chroots to it, killproc cannot be used with this process.
	# So implement a cruder version:
	if [ -f $PIDFILE ]; then
		PID="$(cat $PIDFILE)"
		PROCNAME="$(ps -o cmd --no-headers $PID)"
	fi

	if [ "$PROCNAME" == "$DAEMON" ]; then
		kill -TERM $PID
	fi

	# Remember status and be verbose
	rc_status -v
	;;
    try-restart)
	## Stop the service and if this succeeds (i.e. the 
	## service was running before), start it again.
        $0 status >/dev/null &&  $0 restart

	# Remember status and be quiet
	rc_status
	;;
    restart|force-reload)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop
	$0 start

	# Remember status and be quiet
	rc_status
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signalling, do nothing (!)

	# If it does not support reload:
	exit 3
	;;
    status)
	echo -n "Checking for multipathd: "

	# Status has a slightly different for the status command:
	# 0 - service running
	# 1 - service dead, but /var/run/  pid  file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running

	if [ -f $PIDFILE ]; then
		PID="$(cat $PIDFILE)"
		PROCNAME="$(ps -o cmd --no-headers $PID)"
		if [ "$PROCNAME" == "$DAEMON" ]; then
			(exit 0)
		else
			(exit 1)
		fi
	else
		(exit 3)
	fi

	rc_status -v
	;;
    probe)
	## Optional: Probe for the necessity of a reload,
	## give out the argument which is required for a reload.
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit