60 lines
2.0 KiB
PHP
60 lines
2.0 KiB
PHP
<?php
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/**
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* GNU social cron-on-visit class
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*
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* Keeps track, through Config dataobject class, of relative time since the
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* last run in order to to run event handlers with certain intervals.
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*
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* @category Cron
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* @package GNUsocial
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @copyright 2013 Free Software Foundation, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class Cronish
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{
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/**
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* Will call events as close as it gets to one hour. Event handlers
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* which use this MUST be as quick as possible, maybe only adding a
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* queue item to be handled later or something. Otherwise execution
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* will timeout for PHP - or at least cause unnecessary delays for
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* the unlucky user who visits the site exactly at one of these events.
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*/
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public function callTimedEvents()
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{
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$timers = array('minutely' => 60, // this is NOT guaranteed to run every minute (only on busy sites)
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'hourly' => 3600,
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'daily' => 86400,
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'weekly' => 604800);
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foreach($timers as $name=>$interval) {
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$run = false;
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$lastrun = new Config();
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$lastrun->section = 'cron';
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$lastrun->setting = 'last_' . $name;
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$found = $lastrun->find(true);
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if (!$found) {
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$lastrun->value = time();
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if ($lastrun->insert() === false) {
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common_log(LOG_WARNING, "Could not save 'cron' setting '{$name}'");
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continue;
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}
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$run = true;
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} elseif ($lastrun->value < time() - $interval) {
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$orig = clone($lastrun);
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$lastrun->value = time();
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$lastrun->update($orig);
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$run = true;
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}
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if ($run === true) {
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// such as CronHourly, CronDaily, CronWeekly
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Event::handle('Cron' . ucfirst($name));
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}
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}
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}
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}
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