#!/bin/bash
# $Header: /root/magellan-cvs/src/xen-tools/xendomains.rc,v 1.1 2008-05-24 10:32:18 niro Exp $

#%rlevels: 3:s 4:s 5:s 0:k 1:k 2:k 6:k
#%start: 65
#%stop: 25

#deps
#%needs:
#%before:
#%after:

source /etc/sysconfig/rc
source $rc_functions

get_domname()
{
	local name_from_file=$(sed -rn 's/^name\W*=\W*\"?([[:alnum:]_\.-]+)\"?\W*;?/\1/p' "${1}" | tail -n 1)

	if [[ -z ${name_from_file} ]]
	then
		basename "${1}"
	else
		echo ${name_from_file}
	fi
}

is_running()
{
	/usr/sbin/xm list "${1}" >/dev/null 2>&1
}

set_screen_cmd()
{
	screen_cmd="screen -q -r ${SCREEN_NAME:=xen} -X"
}

using_screen()
{
	[[ "${SCREEN}" == "yes" || "${SCREEN}" == "YES" ]]
}

case "$1" in
	start)
		set_screen_cmd

		echo -e ${COLOREDSTAR}"Starting Xen domains from ${AUTODIR:=/etc/xen/auto} ..."
		if using_screen
		then
			echo -e ${COLOREDSTAR}"Creating screen session to hold domain consoles ..."
			(
			  screen -d -m -S ${SCREEN_NAME} -t dom0 \
				&& ${screen_cmd} zombie dr \
				&& logrotate -f /etc/xen/xen-consoles.logrotate \
				&& ${screen_cmd} logfile  /var/log/xen-consoles/%t.log \
				&& ${screen_cmd} logfile flush ${SCREEN_LOG_INTERVAL:-1} \
				&& ${screen_cmd} log on \
				&& ${screen_cmd} deflog on
			) >/dev/null
			if [[ $? -ne 0 ]]
			then
				evaluate_retval
				return 1
			else
				evaluate_retval
			fi
		fi

		# Create all domains with config files in AUTODIR
		for dom in $(ls "${AUTODIR}/"* 2>/dev/null)
		do
			name=$(get_domname ${dom})
			if ! is_running ${name}
			then
				echo -e ${COLOREDSTAR}"Starting domain ${name} ..."
				if using_screen
				then
					${screen_cmd} screen -t ${name} xm create ${dom} -c
				else
					xm create --quiet ${dom}
				fi
				evaluate_retval
			else
				${WARNING} "Not starting domain ${name} - already running ..."
			fi
		done

		update_svcstatus $1
		splash svc_started "$(basename $0)" 0
		;;

	stop)
		set_screen_cmd

		echo -e ${COLOREDSTAR}"Shutting down Xen domains from ${AUTODIR:=/etc/xen/auto} ..."
		# Stop all domains with config files in AUTODIR
		for dom in $(ls "${AUTODIR}/"* 2>/dev/null)
		do
			name=$(get_domname ${dom})
			if is_running ${name}
			then
				echo -e ${COLOREDSTAR}"Stopping domain ${name} ..."
				xm shutdown --wait ${name} >/dev/null
				evaluate_retval
			else
				${WARNING} "Not stopping domain ${name} - not running ..."
			fi
		done

		if using_screen
		then
			echo -e ${COLOREDSTAR}"Closing screen session ${SCREEN_NAME} ..."
			${screen_cmd} quit
			evaluate_retval
		fi

		update_svcstatus $1
		splash svc_stopped "$(basename $0)" 0
		;;

	restart)
		$0 stop
		sleep 1
		$0 start
		;;

	status)
		/usr/sbin/xm list
		;;

	*)
		echo "Usage: $0 {start|stop|restart|status}"
		exit 1
		;;
esac