cron.php

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<?php
// $Id: cron.php,v 1.34 2005/12/31 14:18:22 dries Exp $

/**
 * @file
 * Handles incoming requests to fire off regularly-scheduled tasks (cron jobs).
 */

include_once './includes/bootstrap.inc';
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);

// If not in 'safe mode', increase the maximum execution time:
if (!ini_get('safe_mode')) {
  set_time_limit(240);
}

// Check if the last cron run completed
if (variable_get('cron_busy', false)) {
  watchdog('cron', t('Last cron run did not complete.'), WATCHDOG_WARNING);
}
else {
  variable_set('cron_busy', true);
}

// Iterate through the modules calling their cron handlers (if any):
module_invoke_all('cron');

// Clean up
variable_set('cron_busy', false);
variable_set('cron_last', time());
watchdog('cron', t('Cron run completed'));