#!/bin/sh
#
# Example of NSTX system script started by the "batch watching" script, nstx
#
# NAME:
#   /usr/pppl/bin/efitdb
#
# PURPOSE:   
#   start, stop, or return status of a script for loading EFIT database.
#   The sentry script wants a "0" returned from the "efitdb status" command.
#   For this program, 4 processes need to be running for things to be OK.
#
# USE:
#   efitdb restart	(stops all efitdb jobs and then starts them)
#   efitdb status -v 	(returns PIDs of any running efitdb processes)
#
# NOTES:
#
#   This script can be invoked with 4 parameters: start, stop, status and restart
#
#   The /usr/pppl/bin/sentry program monitors these programs every 5 minutes
#   and restarts them, if necessary.
#
#   $0 in this script is the name of the script
#
# MODIFICATION HISTORY:
#
#   4-Oct-2004 Generalized and documented by Bill Davis
#   Written June, 2004 by Dana Mastrovito
#
DIR=/usr/pppl/bin/db
PGM=efitdb
case "$1" in
  start)
	echo ""
	echo  "Starting Efit Database Job: "
	su - nstxops -c $DIR/$PGM.cron
	exit 0
	;;
  stop)
	if [ "$2" ]; then
		echo ""
		echo -n "Shutting down Efit Database Jobs: "
	fi
	idlchildren=`/bin/ps -awef | /bin/fgrep $PGM | /bin/fgrep idl |
		/bin/awk '{print $2}'`
        su - nstxops -c "kill -9 ${idlchildren}"
	if [ "$2" ]; then
		echo killed ${idlchildren}			
	fi
	exit 0
	;;
  status)
	idlchildren=`/bin/ps -awef | /bin/fgrep  $PGM | /bin/fgrep idl |
		 /bin/awk '{print $2}'`
	numproc=`echo ${idlchildren}  | wc -w`
	if [ "$2" ]; then
		echo idl children ${idlchildren}		
	fi
	if [ "${numproc}" -ge "4" ]; then	
		exit 0
	else 
		exit 1
	fi
	exit 1
	;;
  restart)
	$0 stop $2
	$0 start $2
	exit 0
	;;
  *)
	echo "Usage: efitdb {start|stop|restart|status}"
	exit 1
esac