--- /dev/null
+#!/usr/bin/env php
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * 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/>.
+ */
+
+define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
+
+$shortoptions = 'fi:at:';
+$longoptions = array('id=', 'foreground', 'all', 'threads=');
+
+/**
+ * Attempts to get a count of the processors available on the current system
+ * to fan out multiple threads.
+ *
+ * Recognizes Linux and Mac OS X; others will return default of 1.
+ *
+ * @return intval
+ */
+function getProcessorCount()
+{
+ $cpus = 0;
+ switch (PHP_OS) {
+ case 'Linux':
+ $cpuinfo = file('/proc/cpuinfo');
+ foreach (file('/proc/cpuinfo') as $line) {
+ if (preg_match('/^processor\s+:\s+(\d+)\s?$/', $line)) {
+ $cpus++;
+ }
+ }
+ break;
+ case 'Darwin':
+ $cpus = intval(shell_exec("/usr/sbin/sysctl -n hw.ncpu 2>/dev/null"));
+ break;
+ }
+ if ($cpus) {
+ return $cpus;
+ }
+ return 1;
+}
+
+$threads = getProcessorCount();
+$helptext = <<<END_OF_QUEUE_HELP
+Daemon script for running queued items.
+
+ -i --id Identity (default none)
+ -f --foreground Stay in the foreground (default background)
+ -a --all Handle queues for all local sites
+ (requires Stomp queue handler, status_network setup)
+ -t --threads=<n> Spawn <n> processing threads (default $threads)
+
+
+END_OF_QUEUE_HELP;
+
+require_once INSTALLDIR.'/scripts/commandline.inc';
+
+require_once(INSTALLDIR.'/lib/daemon.php');
+require_once(INSTALLDIR.'/classes/Queue_item.php');
+require_once(INSTALLDIR.'/classes/Notice.php');
+
+define('CLAIM_TIMEOUT', 1200);
+
+/**
+ * Queue handling daemon...
+ *
+ * The queue daemon by default launches in the background, at which point
+ * it'll pass control to the configured QueueManager class to poll for updates.
+ *
+ * We can then pass individual items through the QueueHandler subclasses
+ * they belong to.
+ */
+class QueueDaemon extends Daemon
+{
+ protected $allsites;
+ protected $threads=1;
+
+ function __construct($id=null, $daemonize=true, $threads=1, $allsites=false)
+ {
+ parent::__construct($daemonize);
+
+ if ($id) {
+ $this->set_id($id);
+ }
+ $this->all = $allsites;
+ $this->threads = $threads;
+ }
+
+ /**
+ * How many seconds a polling-based queue manager should wait between
+ * checks for new items to handle.
+ *
+ * Defaults to 60 seconds; override to speed up or slow down.
+ *
+ * @return int timeout in seconds
+ */
+ function timeout()
+ {
+ return 60;
+ }
+
+ function name()
+ {
+ return strtolower(get_class($this).'.'.$this->get_id());
+ }
+
+ function run()
+ {
+ if ($this->threads > 1) {
+ return $this->runThreads();
+ } else {
+ return $this->runLoop();
+ }
+ }
+
+ function runThreads()
+ {
+ $children = array();
+ for ($i = 1; $i <= $this->threads; $i++) {
+ $pid = pcntl_fork();
+ if ($pid < 0) {
+ print "Couldn't fork for thread $i; aborting\n";
+ exit(1);
+ } else if ($pid == 0) {
+ $this->runChild($i);
+ exit(0);
+ } else {
+ $this->log(LOG_INFO, "Spawned thread $i as pid $pid");
+ $children[$i] = $pid;
+ }
+ }
+
+ $this->log(LOG_INFO, "Waiting for children to complete.");
+ while (count($children) > 0) {
+ $status = null;
+ $pid = pcntl_wait($status);
+ if ($pid > 0) {
+ $i = array_search($pid, $children);
+ if ($i === false) {
+ $this->log(LOG_ERR, "Unrecognized child pid $pid exited!");
+ continue;
+ }
+ unset($children[$i]);
+ $this->log(LOG_INFO, "Thread $i pid $pid exited.");
+
+ $pid = pcntl_fork();
+ if ($pid < 0) {
+ print "Couldn't fork to respawn thread $i; aborting thread.\n";
+ } else if ($pid == 0) {
+ $this->runChild($i);
+ exit(0);
+ } else {
+ $this->log(LOG_INFO, "Respawned thread $i as pid $pid");
+ $children[$i] = $pid;
+ }
+ }
+ }
+ $this->log(LOG_INFO, "All child processes complete.");
+ return true;
+ }
+
+ function runChild($thread)
+ {
+ $this->set_id($this->get_id() . "." . $thread);
+ $this->resetDb();
+ $this->runLoop();
+ }
+
+ /**
+ * Reconnect to the database for each child process,
+ * or they'll get very confused trying to use the
+ * same socket.
+ */
+ function resetDb()
+ {
+ // @fixme do we need to explicitly open the db too
+ // or is this implied?
+ global $_DB_DATAOBJECT;
+ unset($_DB_DATAOBJECT['CONNECTIONS']);
+
+ // Reconnect main memcached, or threads will stomp on
+ // each other and corrupt their requests.
+ $cache = common_memcache();
+ if ($cache) {
+ $cache->reconnect();
+ }
+
+ // Also reconnect memcached for status_network table.
+ if (!empty(Status_network::$cache)) {
+ Status_network::$cache->close();
+ Status_network::$cache = null;
+ }
+ }
+
+ /**
+ * Setup and start of run loop for this queue handler as a daemon.
+ * Most of the heavy lifting is passed on to the QueueManager's service()
+ * method, which passes control on to the QueueHandler's handle_notice()
+ * method for each notice that comes in on the queue.
+ *
+ * Most of the time this won't need to be overridden in a subclass.
+ *
+ * @return boolean true on success, false on failure
+ */
+ function runLoop()
+ {
+ $this->log(LOG_INFO, 'checking for queued notices');
+
+ $master = new IoMaster($this->get_id());
+ $master->init($this->all);
+ $master->service();
+
+ $this->log(LOG_INFO, 'finished servicing the queue');
+
+ $this->log(LOG_INFO, 'terminating normally');
+
+ return true;
+ }
+
+ function log($level, $msg)
+ {
+ common_log($level, get_class($this) . ' ('. $this->get_id() .'): '.$msg);
+ }
+}
+
+if (have_option('i')) {
+ $id = get_option_value('i');
+} else if (have_option('--id')) {
+ $id = get_option_value('--id');
+} else if (count($args) > 0) {
+ $id = $args[0];
+} else {
+ $id = null;
+}
+
+if (have_option('t')) {
+ $threads = intval(get_option_value('t'));
+} else if (have_option('--threads')) {
+ $threads = intval(get_option_value('--threads'));
+} else {
+ $threads = 0;
+}
+if (!$threads) {
+ $threads = getProcessorCount();
+}
+
+$daemonize = !(have_option('f') || have_option('--foreground'));
+$all = have_option('a') || have_option('--all');
+
+$daemon = new QueueDaemon($id, $daemonize, $threads, $all);
+$daemon->runOnce();
+
projects / quix0rs-gnu-social.git / blobdiff