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#!/sbin/runscript
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/app-emulation/xen-tools/files/xendomains.initd,v 1.3 2008/09/01 00:41:08 rbu Exp $

opts="start stop status restart"

depend() {
	need xend
	after dhcp
}

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
}

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

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

start() {
	set_screen_cmd

	einfo "Starting Xen domains from ${AUTODIR:=/etc/xen/auto}"
	if using_screen ; then
		ebegin "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
			eend 1
			return 1
		else
			eend
		fi
	fi
	# Create all domains with config files in AUTODIR.
	for dom in $(ls "${AUTODIR:=/etc/xen/auto}/"* 2>/dev/null | sort); do
		name=$(get_domname ${dom})
		if ! is_running ${name} ; then
			ebegin "  Starting domain ${name}"
			if using_screen ; then
				${screen_cmd} screen -t ${name} xm create ${dom} -c
			else
				xm create --quiet ${dom}
			fi
			eend $?
		else
			einfo "  Not starting domain ${name} - already running"
		fi
	done
}

stop() {
	set_screen_cmd

	einfo "Shutting down Xen domains from ${AUTODIR:=/etc/xen/auto}"
	# Stop all domains with config files in AUTODIR.
	DOMAINS="$(ls "${AUTODIR:=/etc/xen/auto}/"* 2>/dev/null | sort -r)"

	if [[ "$PARALLEL_SHUTDOWN" = "yes" ]] ; then
		for dom in $DOMAINS ; do
			name=$(get_domname ${dom})
			if is_running ${name} ; then
				ebegin "  Asking domain ${name} to shutdown..."
					xm shutdown ${name} >/dev/null
				eend $?
			fi
		done
	fi
	for dom in $DOMAINS ; do
		name=$(get_domname ${dom})
		if is_running ${name} ; then
			ebegin "  Waiting for domain ${name} to shutdown"
				xm shutdown --wait ${name} >/dev/null
			eend $?
		else
			einfo "  Not stopping domain ${name} - not running"
		fi
	done
	if using_screen ; then
		ebegin "Closing screen session ${SCREEN_NAME}"
		${screen_cmd} quit
		eend $?
	fi
}

status() {
	/usr/sbin/xm list
}