sbs.init

#! /bin/sh
### BEGIN INIT INFO
# Provides:          sbs
# Required-Start:    $syslog $time $remote_fs
# Required-Stop:     $syslog $time $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Simple batch system
# Description:       Debian init for the simple batch system
### END INIT INFO
#
# sbs.init:   The simple batch system daemons
#
# chkconfig: 2345 97 03
# description:  Simple batch system daemons
#
# processname: sbsd
# xpidfile: /var/run/sbsd-*.pid
#
#set -x 

PROG=/usr/sbin/sbsd
NAME=sbs
CONFIG_PATH=/etc/sbs
PID_FILE_BASE=/var/run/sbsd-

# Sanity checks.
[ -x $PROG ] || exit 0

#CMD=echo
RETVAL=0

# $1 qeue name $2 additional parms. creates the queue if required
start_one()
{
    $CMD $PROG -c -q $1
    $CMD $PROG -q $1 $2
    echo "starting $PROG for queue $1"
}

# $1 queue name
stop_one()
{
    if [ -f $PID_FILE_BASE$1.pid ] ; then
        $CMD kill -TERM `cat $PID_FILE_BASE$1.pid`
    else
        echo "sbsd for queue $1 is probably not running"
    fi
}

# $1 queue name
status_one()
{
    if [ -f $PID_FILE_BASE$1.pid ] ; then
        $CMD kill -0 `cat $PID_FILE_BASE$1.pid`
        if [ $? -eq 0 ] ; then
            echo "sbsd for queue $1 is running"
        else
            echo "sbsd for queue $1 is not running"
        fi
    else
        echo "sbsd for queue $1 is not running"
    fi
}

# $1 name of a configuration.
start1()
{
    if [ -f $CONFIG_PATH/$1.conf ] ; then
        QUEUE=''
        NICE=''
        WORKERS=''
        ACTVE=''
        TIMEOUT=''
        . $CONFIG_PATH/$1.conf
        if [ -n $QUEUE ] ; then
            SBS_ARGS=''
            if [ -n "$NICE" ] ; then
                SBS_ARGS="$SBS_ARGS -n $NICE"
            fi
            if [ -n "$WORKERS" ] ; then
                SBS_ARGS="$SBS_ARGS -w $WORKERS"
            fi
            if [ -n "$ACTIVE" ] ; then
                SBS_ARGS="$SBS_ARGS -a $ACTIVE"
            fi
            if [ -n "$TIMEOUT" ] ; then
                SBS_ARGS="$SBS_ARGS -t $TIMEOUT"
            fi
            if [ -n "$LOAD" ] ; then
                SBS_ARGS="$SBS_ARGS -l $LOAD"
            fi
            start_one $QUEUE "$SBS_ARGS"
        else
            echo "Sorry no QUEUE defined in $CONFIG_PATH/$1.conf"
        fi 
    else
        echo "Sorry, $CONFIG_PATH/$1.conf does not exist"
    fi
}

# $1 name of a configuration.
start() 
{
    if [ -z "$1" ] ; then
        echo "starting the simple batch system"
        for i in $CONFIG_PATH/*.conf ; do
            start1 `basename $i .conf` 
        done
        echo "done."
    else
        start1 $1
    fi
}

# $1 name of a configuration
stop1()
{
    if [ -f $CONFIG_PATH/$1.conf ] ; then
        QUEUE=''
        . $CONFIG_PATH/$1.conf
        if [ -n $QUEUE ] ; then
            stop_one $QUEUE
        else
            echo "Sorry no QUEUE defined in $CONFIG_PATH/$1.conf"
        fi 
    else
        echo "Sorry, $CONFIG_PATH/$1.conf does not exist"
    fi
}

# $1 name of a configuration or nothing
stop() 
{
    if [ -z "$1" ] ; then
        echo "stopping the simple batch system"
        for i in $CONFIG_PATH/*.conf ; do
            stop1 `basename $i .conf` 
        done
        echo "done."
    else
        stop1 $1
    fi
}

# $1 name of a configuration
status1()
{
    if [ -f $CONFIG_PATH/$1.conf ] ; then
        QUEUE=''
        . $CONFIG_PATH/$1.conf
        if [ -n $QUEUE ] ; then
            status_one $QUEUE
        else
            echo "Sorry no QUEUE defined in $CONFIG_PATH/$1.conf"
        fi 
    else
        echo "Sorry, $CONFIG_PATH/$1.conf does not exist"
    fi
}

status()
{
    if [ -z "$1" ] ; then
        echo "checking the simple batch system"
        for i in $CONFIG_PATH/*.conf ; do
            status1 `basename $i .conf` 
        done
        echo "done."
    fi
}


restart() 
{
    stop $1
    start $1
}       

main()
{
    if [ ! -d $CONFIG_PATH/ ] ; then
        echo "Configuration path \"$CONFIG_PATH\" does not exist"
        exit 0
    fi
    case "$1" in
        start)
            start $2
            ;;
        stop)
            stop $2
            ;;
        status)
            status $2
            ;;
        reload|restart)
            restart $2
            ;;
        *)
            echo $"Usage: $0 {start|stop|restart}"
            exit 1
    esac
}

main $1 $2
exit $RETVAL