root/projects/AsynCluster/trunk/misc/etc_init.d_asyncluster

#! /bin/sh
### BEGIN INIT INFO
# Provides:          ndm-master
# Required-Start:    $local_fs $network $remote_fs
# Required-Stop:     $local_fs $network $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      S 0 1 6
# Short-Description: AsynCluster - Master
# Description:       Master server daemon for a cluster of nodes
### END INIT INFO

# Author: Ed Suominen <ed@eepatents.com>

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/usr/sbin:/usr/bin:/sbin:/bin
DESC="ASYNCLUSTER"
NAME=asyncluster
DAEMON=/usr/bin/twistd
TACFILE=/usr/lib/asyncluster.tac
LOGFILE=/var/log/asyncluster.log
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/asyncluster

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
[ -f /etc/default/rcS ] && . /etc/default/rcS

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


isrunning () {
  if [ ! -f $PIDFILE ]
      then
      false
  else
      DAEMONPID=$(cat $PIDFILE)
      if expr "$(cat /proc/$DAEMONPID/cmdline 2> /dev/null)" : "$DAEMON" > /dev/null 2>&1
          then
          true
      else
          false
      fi
  fi
}

#
# 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
    isrunning && return 1
    $DAEMON --python=$TACFILE --logfile=$LOGFILE --pidfile=$PIDFILE || return 2
}

#
# 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
    isrunning && return 1
    cat $PIDFILE |xargs kill
        RETVAL="$?"
        [ "$RETVAL" = 0 ] || return 2
        # Many daemons don't delete their pidfiles when they exit.
        rm -f $PIDFILE
        return "$RETVAL"
}

case "$1" in
  start)
        [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
        do_start
        case "$?" in
                0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
        esac
        ;;
  stop)
        [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
        do_stop
        case "$?" in
                0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
        esac
        ;;
  restart|force-reload)
        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
        ;;
  *)
        echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
        exit 3
        ;;
esac

: