source: projects/vutils/tags/vutils-2.2.6/functions @ 1120

#! /bin/bash
#
# functions:    This file contains functions to be used for autostart.sh
#               in WindowMaker
#    ported from /etc/init.d/functions 23-Dec-1998
#    added checkStart                  24-Dec-1998
#    added path manipulation           11-Jul-2000
#  by Jun Nishii <jun@vinelinux.org>
#                    Time-stamp: <2000-07-11 12:15:23 vine>
#
#  (original source, /etc/init.d/functions, is written by
#    Miquel van Smoorenburg, Greg Galloway and Marc Ewing.

# A function to stop a program.
killproc() {
        # Test syntax.
        if [ $# = 0 ]; then
                echo "Usage: killproc {program} [signal]"
                return 1
        fi

        notset=0
        # check for second arg to be kill level
        if [ "$2" != "" ] ; then
                killlevel=$2
        else
                notset=1
                killlevel="-9"
        fi

        # Save basename.
        base=`basename $1`

        # Find pid.
        pid=`pidofproc $base`

        # Kill it.
        if [ "$pid" != "" ] ; then
                echo -n "$base "
                if [ "$notset" = 1 ] ; then
                        # TERM first, then KILL if not dead
                        kill -TERM $pid
                        usleep 100000
                        if ps h $pid >/dev/null 2>&1 ; then
                                sleep 3
                                kill -KILL $pid
                        fi
                # use specified level only
                else
                        kill $killlevel $pid
                fi
        fi

        # Remove pid file if any.
        rm -f /var/run/$base.pid
}

# A function to stop a user's program.
killmyproc() {
        # Test syntax.
        if [ $# = 0 ]; then
                echo "Usage: killmyproc {program} [signal]"
                return 1
        fi

        notset=0
        # check for second arg to be kill level
        if [ "$2" != "" ] ; then
                killlevel=$2
        else
                notset=1
                killlevel="-9"
        fi

        # Save basename.
        base=`basename $1`

        # Find pid.
        pid=`pidofmyproc $base`

        # Kill it.
        if [ "$pid" != "" ] ; then
                echo "killing $base ..."
                if [ "$notset" = 1 ] ; then
                        # TERM first, then KILL if not dead
                        kill -TERM $pid
                        usleep 100000
                        if ps h $pid >/dev/null 2>&1 ; then
                                sleep 3
                                kill -KILL $pid
                        fi
                # use specified level only
                else
                        kill $killlevel $pid
                fi
        fi
}

# A function to find the pid of a program.
pidofproc() {
        # Test syntax.
        if [ $# = 0 ] ; then
                echo "Usage: pidofproc {program}"
                return 1
        fi

        # First try "/var/run/*.pid" files
        if [ -f /var/run/$1.pid ] ; then
                pid=`head -1 /var/run/$1.pid`
                if [ "$pid" != "" ] ; then
                        echo $pid
                        return 0
                fi
        fi

        # Next try "pidof"
        pid=`/sbin/pidof $1`
        if [ "$pid" != "" ] ; then
                echo $pid
                return 0
        fi

        # Finally try to extract it from ps
        ps auxw | awk 'BEGIN { prog=ARGV[1]; ARGC=1 } 
                           { if ((prog == $11) || (("(" prog ")") == $11) ||
                           ((prog ":") == $11)) { print $2 ; exit 0 } }' $1
}


pidofmyproc() {
        # Test syntax.
        if [ $# = 0 ] ; then
                echo "Usage: ownofproc {program}"
                return 1
        fi

        # Next try "pidof"
        pid=`pidofproc $1`
        if [ "$pid" != "" ] ; then
                for i in $pid; do
                    user=`ps h -o user --pid $i`
                    if [ "${user}" = "${USER}" ]; then
                        echo -n $i" "
                    fi
                done
                echo
                return 0
        fi
}


checkStart(){
    pid=`pidofproc $1`
    if [ -z "$pid" ] ; then
        $@ >& /dev/null &
    fi
}

isXRunning(){
    pid=`pidofproc X`

    if [ -z "$pid" ] ; then
        # for Xpmac server
        pid=`pidofproc Xpmac.bin`

        # for sparc
        if [ -z "$pid" ] ; then
                pid=`pidofproc Xsun`
        fi
        if [ -z "$pid" ] ; then
                pid=`pidofproc Xsun24`
        fi

        if [ -z "$pid" ] ; then
            return -1
        else
            return 0
        fi
    fi
    return 0
}