#!/bin/bash
#
# OpenSim Server (gridmode)
#
#

OSDIR=/usr/local/opensim
MONO=/usr/local/bin/mono
SCRNID=opensim_sim

CHKTM=30

PRGFL=/etc/init.d/opensim_sim
PIDFL=/var/run/opensim_sim_shell.pid


start() {
	echo "OpenSim SIM Start."
	cd $OSDIR/bin
	screen -dmS opensim_sim $MONO $OSDIR/bin/OpenSim.exe
}       



stop() {
	screen -S $SCRNID -p 0 -X stuff $'quit\n' 1> /dev/null 2>&1
	echo "OpenSim SIM Stoped."
}



kill_loop() {
	PID=`cat $PIDFL 2> /dev/null`
	if [ "$PID" != "" ]; then
		kill -9 $PID 2> /dev/null
		rm -f $PIDFL
	fi
}



loop_check() {
	kill_loop
	echo $$ >| $PIDFL

	while [ "" = "" ]; do
		sleep $CHKTM
		CHECK=`ps ax|grep SCREEN |grep $SCRNID`
		if [ "$CHECK" = "" ]; then
			start
		fi
	done
}



case "$1" in
  start)
	start
	/bin/bash $PRGFL check &
	;;
  stop)
	kill_loop
	sleep 3
	stop
	;;
  restart|reload)
	kill_loop
	sleep 3
	stop
	sleep  20
    start
	/bin/bash $PRGFL check &
	;;
  check)
	loop_check
	;;
  *)
	echo $"Usage: $0 {start|stop|restart}"
	exit 1
esac

exit $?