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#!/sbin/openrc-run

extra_started_commands="upgrade reload"
extra_commands="configtest"

depend() {
	need net
	use dns logger netmount
}

start() {
	configtest || return 1
	ebegin "Starting tengine"
	start-stop-daemon --start --pidfile /var/run/tengine.pid \
		--exec /usr/sbin/tengine -- -c /etc/tengine/tengine.conf
	eend $? "Failed to start tengine"
}

stop() {
	configtest || return 1
	ebegin "Stopping tengine"
	start-stop-daemon --stop --pidfile /var/run/tengine.pid
	eend $? "Failed to stop tengine"
	rm -f /var/run/tengine.pid
}

reload() {
	configtest || return 1
	ebegin "Refreshing tengine' configuration"
	kill -HUP `cat /var/run/tengine.pid` &>/dev/null
	eend $? "Failed to reload tengine"
}

upgrade() {
	configtest || return 1
	ebegin "Upgrading tengine"

	einfo "Sending USR2 to old binary"
	kill -USR2 `cat /var/run/tengine.pid` &>/dev/null

	einfo "Sleeping 3 seconds before pid-files checking"
	sleep 3

	if [ ! -f /var/run/tengine.pid.oldbin ]; then
		eerror "File with old pid not found"
		return 1
	fi

	if [ ! -f /var/run/tengine.pid ]; then
		eerror "New binary failed to start"
		return 1
	fi

	einfo "Sleeping 3 seconds before WINCH"
	sleep 3 ; kill -WINCH `cat /var/run/tengine.pid.oldbin`

	einfo "Sending QUIT to old binary"
	kill -QUIT `cat /var/run/tengine.pid.oldbin`

	einfo "Upgrade completed"

	eend $? "Upgrade failed"
}

configtest() {
	ebegin "Checking tengine' configuration"
	mkdir -p /tmp/tengine
	/usr/sbin/tengine -c /etc/tengine/tengine.conf -t
	eend $? "failed, please correct errors above"
}