File: ledmon.init

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ledmon 0.97-1.2
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#!/bin/sh
### BEGIN INIT INFO
# Provides:             ledmon
# Required-Start:       $local_fs $remote_fs $syslog $time
# Required-Stop:        $local_fs $remote_fs $syslog $time
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description: enclosure LED monitor
# Description: monitoring of storage enclosure LEDs
### END INIT INFO

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="enclosure LED monitor"
NAME="ledmon"
DAEMON=/usr/sbin/ledmon
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

# Exit if the package is not installed
test -x $DAEMON || exit 0

# Read configuration variable file if it is present
test -f /etc/default/$NAME && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
		$DAEMON_OPTS 2>/dev/null \
		|| return 2
	# Add code here, if necessary, that waits for the process to be ready
	# to handle requests from services started subsequently which depend
	# on this one.  As a last resort, sleep for some time.
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME

	RETVAL="$?"
	# Many daemons don't delete their pidfiles when they exit.
	rm -f $PIDFILE
	return "$RETVAL"
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
	#
	# If the daemon can reload its configuration without
	# restarting (for example, when it is sent a SIGHUP),
	# then implement that here.
	#
	start-stop-daemon --stop --signal HUP --quiet --pidfile $PIDFILE --name $NAME
	return 0
}

case "$1" in
  start)
    log_daemon_msg "Starting $DESC" "$NAME"
    do_start
	case "$?" in
		0|1) log_end_msg 0 ;;
		2)   log_end_msg 1 ;;
	esac
	;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
    do_stop
	case "$?" in
		0|1) log_end_msg 0 ;;
		2)   log_end_msg 1 ;;
	esac
	;;
  reload|force-reload)
	log_daemon_msg "Reloading $DESC" "$NAME"
    do_reload
	log_end_msg $?
	;;
  restart)
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
	  	# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  status)
	status_of_proc -p $PIDFILE $DAEMON $NAME && exit 0 || exit $?
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload|status}" >&2
	exit 1
	;;
esac

exit 0