#! /bin/sh
#
#  Copyright (c) 2004, SWITCH - Teleinformatikdienste fuer Lehre und Forschung
#  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright notice,
#     this list of conditions and the following disclaimer in the documentation
#     and/or other materials provided with the distribution.
#   * Neither the name of SWITCH nor the names of its contributors may be
#     used to endorse or promote products derived from this software without
#     specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#
#  $Author: peter $
#
#  $Id: nfsen.rc 34 2005-07-18 12:53:55Z peter $
#
#  $LastChangedRevision: 34 $

# Include NFSEN settings
. /usr/local/nfsen/etc/nfsen-shell-param

RunUser=`whoami`;

# Make sure all pid files are valid - the processes must exist and run
$BINDIR/pid_check.pl

case "$1" in
  start)
        echo -n "Starting nfcpad: "
        for line in $SOURCES ; do
        ident=`echo $line | sed -e " s/:.*//"`;
        port=`echo $line | sed -e " s/.*://"`;
                pidfile="$VARDIR/run/$ident.pid"
                if [ $RunUser = 'root' ]; then
                        args="-w -D -I $ident -p $port -u $USER -g $GROUP $BUFFLEN -l $PROFILEDATADIR/live/$ident"
                elif [ $RunUser = $USER ]; then
                        args="-w -D -I $ident -p $port -l $PROFILEDATADIR/live/$ident"
                else
                        echo "Hello '$RunUser'"
                        echo "Only user '$USER' or 'root' wants to run $0 start/stop";
                        exit 1;
                fi
        profiler="$PREFIX/nfprofile -q -p $PROFILEDATADIR -s $ident -r %d/%f"
        echo -n "$ident "
                if [ -f $pidfile ]; then
                        echo "Already running! "
                else 
                        $PREFIX/nfcapd $args -P $pidfile -x "$profiler"
                fi
        done

        echo "done."
        pidfile="$VARDIR/run/nfsen-run.pid"
        if [ -f $pidfile ]; then
                echo "nfsen-run is already running!"
        else 
                echo -n "Starting nfsen-run: "
                $BINDIR/nfsen-run
                echo "done."
        fi
        ;;
  stop)

        if [ $RunUser != 'root' -o $RunUser != $RunUser ]; then
                echo "Hello '$RunUser'"
                echo "Only user '$USER' or 'root' wants to run $0 start/stop";
                exit 1;
        fi

        echo -n "Stopping nfsen-run: "
        pidfile="$VARDIR/run/nfsen-run.pid"
        if [ ! -f $pidfile ]; then
        echo "Missing pid file $pidfile to stop nfsen-run."
        else
                pid=`cat $pidfile`;
                echo -n "nfsen-run:${pid} "
                # if kill returns an error code, it could not signal nfsen-run
                # therefore process may not exists. Clean up old pid file
                kill -TERM $pid || echo Signal error $?

                # wait for nfsen-run to exit
                echo -n "Wait for nfsen-run to exit "
                x=0;     # initialize x to 0
                while [ -f $pidfile -a "$x" -le 120 ]; do
                    # increment the value of x:
                    x=$(expr $x + 1)
                    sleep 1
                        echo -n "."
                done 
                        
                if [ -f $pidfile ]; then
                        echo
                        echo "nfsen-run did not exit within 2 minutes - give up waiting"
                fi

        fi
        echo "done."

        echo -n "Stopping nfcpad: "
        for line in $SOURCES ; do
        ident=`echo $line | sed -e " s/:.*//"`;
        port=`echo $line | sed -e " s/.*://"`;
                pidfile="$VARDIR/run/$ident.pid"
                if [ ! -f $pidfile ]; then
                        echo "Missing pid file $pidfile to stop ident: $ident"
                else
                        pid=`cat $pidfile`;
                        echo -n "${ident}:${pid} "
                        # if kill returns an error code, it could not signal nfcapd
                        # therefore process may not exists. Clean up old pid file
                        kill -TERM $pid
                fi
        done
        echo "done."
        
        ;;
  #reload)
        #
        #       not unsed
        #;;
  #restart|force-reload)
        #
        #       not unsed
        #;;
  *)
        "Usage: $0 { start | stop }"
        exit 1
        ;;
esac

exit 0