#!/bin/bash
# 
#	ktcpvs: Shell script used to start ktcpvs module automatically
#			Author: Zhang Wenming<Wenming.zhang@unison.net.cn>
#
# chkconfig: 2345  56 24
# description:  Ktcpvs start script
#

CONF=/etc/ktcpvs.conf

[ -f $CONF ] || exit 1
# source function library
. /etc/rc.d/init.d/functions
MODULES="tvs_phttp tvs_chttp tvs_hhttp"

function start()
{
	grep -q phttp $CONF && modprobe tvs_phttp
	grep -q chttp $CONF && modprobe tvs_chttp
	grep -q hhttp $CONF && modprobe tvs_hhttp
	echo -n "Staring ktcpvs:"
	tcpvsadm -f $CONF 
	initlog -c "tcpvsadm --start " && success || failure
	echo
}

function stop()
{
	if [ ! -d /proc/sys/net/ktcpvs ]; then
		echo "Ktcpvs not started." 
		exit 1
	fi
	echo -n "Stoping ktcpvs:"
	initlog -c "tcpvsadm --stop" && success || failure
	echo 
}
function unload()
{
	if [ ! -d /proc/sys/net/ktcpvs ]; then
		echo "Ktcpvs not started." 
		exit 1
	fi
	echo "Removing ktcpvs schedulers ..."
	echo 1 >/proc/sys/net/ktcpvs/unload
	sleep 3
	for i in $MODULES; do
		if grep -q $i /proc/modules; then
			echo -n "Removing module $i:"
			initlog -c "modprobe -r $i" && success || failure
			echo
		fi
	done
	echo -n "Unloading ktcpvs module:"
	initlog -c 'modprobe -r ktcpvs' && success || failure
	echo
}

case "$1" in
	start)
		start
		;;
	stop)
		stop
		;;
	unload)
		stop
		unload
		;;
	*)
		echo $"Usage: $0 {start|stop|unload}"
esac