<?php /** * StatusNet, the distributed open-source microblogging tool * * i/o manager to watch for a dead parent process * * PHP version 5 * * LICENCE: This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * @category QueueManager * @package StatusNet * @author Brion Vibber <brion@status.net> * @copyright 2010 StatusNet, Inc. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://status.net/ */ class ProcessManager extends IoManager { protected $socket; public static function get() { throw new Exception("Must pass ProcessManager per-instance"); } public function __construct($socket) { $this->socket = $socket; } /** * Tell the i/o queue master if and how we can handle multi-site * processes. * * Return one of: * IoManager::SINGLE_ONLY * IoManager::INSTANCE_PER_SITE * IoManager::INSTANCE_PER_PROCESS */ public static function multiSite() { return IoManager::INSTANCE_PER_PROCESS; } /** * We won't get any input on it, but if it's broken we'll * know something's gone horribly awry. * * @return array of resources */ function getSockets() { return array($this->socket); } /** * See if the parent died and request a shutdown... * * @param resource $socket * @return boolean success */ function handleInput($socket) { if (feof($socket)) { common_log(LOG_INFO, "Parent process exited; shutting down child."); $this->master->requestShutdown(); } return true; } }