Chris@0: /**
Chris@0:  * Implements hook_cron().
Chris@0:  */
Chris@0: function {{ machine_name }}_cron() {
Chris@0:   // Short-running operation example, not using a queue:
Chris@0:   // Delete all expired records since the last cron run.
Chris@0:   $expires = variable_get('mymodule_cron_last_run', REQUEST_TIME);
Chris@0:   db_delete('mymodule_table')
Chris@0:     ->condition('expires', $expires, '>=')
Chris@0:     ->execute();
Chris@0:   variable_set('mymodule_cron_last_run', REQUEST_TIME);
Chris@0: 
Chris@0:   // Long-running operation example, leveraging a queue:
Chris@0:   // Fetch feeds from other sites.
Chris@0:   $result = db_query('SELECT * FROM {aggregator_feed} WHERE checked + refresh < :time AND refresh <> :never', array(
Chris@0:     ':time' => REQUEST_TIME,
Chris@0:     ':never' => AGGREGATOR_CLEAR_NEVER,
Chris@0:   ));
Chris@0:   $queue = DrupalQueue::get('aggregator_feeds');
Chris@0:   foreach ($result as $feed) {
Chris@0:     $queue->createItem($feed);
Chris@0:   }
Chris@0: }