From ec145b73fc91dd54695dd374c8a71a11e233b8c0 Mon Sep 17 00:00:00 2001 From: Brion Vibber Date: Tue, 12 Jan 2010 19:57:15 -0800 Subject: Major refactoring of queue handlers to support running multiple sites in one daemon. Key changes: * Initialization code moved from common.php to StatusNet class; can now switch configurations during runtime. * As a consequence, configuration files must now be idempotent... Be careful with constant, function or class definitions. * Control structure for daemons/QueueManager/QueueHandler has been refactored; the run loop is now managed by IoMaster run via scripts/queuedaemon.php IoManager subclasses are woken to handle socket input or polling, and may cover multiple sites. * Plugins can implement notice queue handlers more easily by registering a QueueHandler class; no more need to add a daemon. The new QueueDaemon runs from scripts/queuedaemon.php: * This replaces most of the old *handler.php scripts; they've been refactored to the bare handler classes. * Spawns multiple child processes to spread load; defaults to CPU count on Linux and Mac OS X systems, or override with --threads=N * When multithreaded, child processes are automatically respawned on failure. * Threads gracefully shut down and restart when passing a soft memory limit (defaults to 90% of memory_limit), limiting damage from memory leaks. * Support for UDP-based monitoring: http://www.gitorious.org/snqmon Rough control flow diagram: QueueDaemon -> IoMaster -> IoManager QueueManager [listen or poll] -> QueueHandler XmppManager [ping & keepalive] XmppConfirmManager [poll updates] Todo: * Respawning features not currently available running single-threaded. * When running single-site, configuration changes aren't picked up. * New sites or config changes affecting queue subscriptions are not yet handled without a daemon restart. * SNMP monitoring output to integrate with general tools (nagios, ganglia) * Convert XMPP confirmation message sends to use stomp queue instead of polling * Convert xmppdaemon.php to IoManager? * Convert Twitter status, friends import polling daemons to IoManager * Clean up some error reporting and failure modes * May need to adjust queue priorities for best perf in backlog/flood cases Detailed code history available in my daemon-work branch: http://www.gitorious.org/~brion/statusnet/brion-fixes/commits/daemon-work --- lib/jabberqueuehandler.php | 47 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 lib/jabberqueuehandler.php (limited to 'lib/jabberqueuehandler.php') diff --git a/lib/jabberqueuehandler.php b/lib/jabberqueuehandler.php new file mode 100644 index 000000000..b1518866d --- /dev/null +++ b/lib/jabberqueuehandler.php @@ -0,0 +1,47 @@ +. + */ + +if (!defined('STATUSNET') && !defined('LACONICA')) { + exit(1); +} + +/** + * Queue handler for pushing new notices to Jabber users. + * @fixme this exception handling doesn't look very good. + */ +class JabberQueueHandler extends QueueHandler +{ + var $conn = null; + + function transport() + { + return 'jabber'; + } + + function handle_notice($notice) + { + require_once(INSTALLDIR.'/lib/jabber.php'); + try { + return jabber_broadcast_notice($notice); + } catch (XMPPHP_Exception $e) { + $this->log(LOG_ERR, "Got an XMPPHP_Exception: " . $e->getMessage()); + exit(1); + } + } +} -- cgit v1.2.3-54-g00ecf