#!/bin/bash
#
# iseg2dim     Start and stop the DIM server for Iseg HV PSUs.
#
# chkconfig:   345 90 10
# description: iseg2dim is a DIM server to control and monitor \
#    high-voltage power supplies by Iseg. 
# processname: iseg2dim
#

# Source function library.

# To run different servers, create symbolic link ro subsystems, eg:
#    ln -s /usr/local/bin/iseg2dim /usr/local/bin//iseg2dim_ra12cr2
. /etc/rc.d/init.d/functions


# subsys may be one of:
# ra12cr2
# ra12cr3
# ra14cr3
subsys="ra12cr2"

#
# coredumps
enable_coredumps="true"

RETVAL=0
prog="iseg2dim_$subsys"
opts="--configfile /etc/trd/iseg2dim_${subsys}.cfg"
iseg2dim="/usr/bin/$prog"
lockfile="/var/lock/subsys/iseg2dim_$subsys"
pidfile="/var/run/$prog.pid"

# Shell functions to cut down on unnecessary shell invocations.
start() {
        [ -x $iseg2dim ] || exit 5
	if [ -f $lockfile ]; then 
	    echo "$prog already running ($lockfile)"
	    return 0
	fi
        echo -n $"Starting $prog: "
	if [ "$enable_coredumps"x == "true"x ]; then
	    echo "/tmp/core_%e.%t.%p" >  /proc/sys/kernel/core_pattern 
	    echo -n "coredumps to /tmp/core_%e.%t.%p"
	    ulimit -c unlimited
	fi
	$iseg2dim $opts && success || failure
        RETVAL=$?
	usleep 100000
	pid=`pidof -o $$ -o $PPID -o %PPID -x $prog`
	if [ -n "$pid" ] ; then
	    echo_success
	    touch $lockfile
	    echo "$pid" > $pidfile
	    RETVAL=0
	else
	    echo_failure
	    RETVAL=
	fi
	echo

}
stop() {
	[ ! -f $lockfile ] && return 0
        echo -n $"Stopping $prog: "
        killproc ${prog}
        RETVAL=$?
        echo
	rm -f $pidfile
	rm -f $lockfile

#        [ $RETVAL = 0 ] && rm -f $lockfile
}

# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        stop
        start
        ;;
  status)
        status ${iseg2dim}
        ;;
  condrestart)
        if [ -f $lockfile ] ; then
                stop
                start
        fi
        ;;
  *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart}"
        RETVAL=2
        ;;
esac

exit $RETVAL