#!/bin/sh
#
# sge_execd Gridengine execution daemon
#
# chkconfig:   - 99 01
# description: The Gridexecution daemon starts and manages grid jobs

### BEGIN INIT INFO
# Provides: sge_execd
# Required-Start: $network $local_fs $remote_fs
# Required-Stop: $network $local_fs $remote_fs
# Should-Start: 
# Should-Stop: 
# Default-Start: 
# Default-Stop: 0 1 6
# Short-Description: Gridengine execution daemon
# Description: The Gridexecution daemon starts and manages grid jobs
### END INIT INFO

# Source function library.
. /etc/rc.d/init.d/functions

exec="/usr/bin/sge_execd"
prog="sge_execd"

#Defaults
SGE_ROOT=/usr/share/gridengine
SGE_CELL=default

#Configuration
config=/etc/sysconfig/gridengine
[ -e $config ] && . $config

#Export these
export SGE_ROOT SGE_CELL

utilbin_dir=/usr/libexec/gridengine/utilbin
# UQHOST is the local host name (unqualified name)
UQHOST=`$utilbin_dir/gethostname -name | cut -f1 -d.`
execd_spool_dir=`/usr/bin/qconf -sconf $UQHOST 2>&- | awk '$1 == "execd_spool_dir" { print $2 }'`
if [ -z "$execd_spool_dir" ]; then
    execd_spool_dir=`/usr/bin/qconf -sconf | awk '$1 == "execd_spool_dir" { print $2 }'`
fi
#Add the hostname to the spool directory
execd_spool_dir=${execd_spool_dir}/${UQHOST}
pidfile=${execd_spool_dir}/execd.pid


lockfile=/var/lock/subsys/$prog

start() {
    [ -x $exec ] || exit 5
    #Set maximum locked memory, needed for infiniband support
    [ -n "$RLIMIT_MEMLOCKED" ] && ulimit -l $RLIMIT_MEMLOCKED
    echo -n $"Starting $prog: "
    daemon --check $prog --pidfile=$pidfile $exec
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    killproc -p $pidfile $prog
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    if [ "$1" != "soft" ]; then
       for jobid in `ls $execd_spool_dir/active_jobs`; do
           echo "   Shutting down Grid Engine shepherd of job $jobid"
           killproc -p $execd_spool_dir/active_jobs/$jobid/pid sge_shepherd
       done
    fi
    return $retval
}

restart() {
    stop soft
    start
}

reload() {
    restart
}

force_reload() {
    restart
}

rh_status() {
    # run checks to determine if the service is running or use generic status
    status $prog
}

rh_status_q() {
    rh_status >/dev/null 2>&1
}


case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    softstop)
        rh_status_q || exit 0
        stop soft
        ;;
    restart)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
        restart
        ;;
    *)
        echo $"Usage: $0 {start|stop|softstop|status|restart|try-restart|reload|force-reload}"
        exit 2
esac
exit $?