#!/bin/sh /etc/rc.common

START=99
STOP=15

CONFIG=passwall
APP_FILE=/usr/share/${CONFIG}/app.sh
LOCK_FILE_DIR=/var/lock
LOCK_FILE=${LOCK_FILE_DIR}/${CONFIG}.lock

set_lock() {
	[ ! -d "$LOCK_FILE_DIR" ] && mkdir -p $LOCK_FILE_DIR
	exec 999>"$LOCK_FILE"
	flock -xn 999
}

unset_lock() {
	flock -u 999
	rm -rf "$LOCK_FILE"
}

unlock() {
	failcount=1
	while [ "$failcount" -le 10 ]; do
		if [ -f "$LOCK_FILE" ]; then
			let "failcount++"
			sleep 1s
			[ "$failcount" -ge 10 ] && unset_lock
		else
			break
		fi
	done
}

boot() {
	$APP_FILE boot
}

start() {
	set_lock
	[ $? == 1 ] && $APP_FILE echolog "脚本已经在运行，不重复运行，退出." && exit 0
	$APP_FILE start
	unset_lock
}

stop() {
	unlock
	set_lock
	[ $? == 1 ] && $APP_FILE echolog "停止脚本等待超时，不重复运行，退出." && exit 0
	$APP_FILE stop
	unset_lock
}

restart() {
	set_lock
	[ $? == 1 ] && $APP_FILE echolog "脚本已经在运行，不重复运行，退出." && exit 0
	$APP_FILE stop
	$APP_FILE start
	unset_lock
}

disable() {
	rm -f "$IPKG_INSTROOT"/etc/rc.d/S??zzz_${CONFIG}
	rm -f "$IPKG_INSTROOT"/etc/rc.d/K??zzz_${CONFIG}
}

enable() {
	err=1
	[ "$START" ] && \
		ln -sf "../init.d/${CONFIG}" "$IPKG_INSTROOT/etc/rc.d/S${START}zzz_${CONFIG}" && \
		err=0
	[ "$STOP" ] && \
		ln -sf "../init.d/${CONFIG}" "$IPKG_INSTROOT/etc/rc.d/K${STOP}zzz_${CONFIG}" && \
		err=0
	return $err
}

enabled() {
	[ -x "$IPKG_INSTROOT/etc/rc.d/S${START}zzz_${CONFIG}" ]
}