/**
* Background Process launch.
*/
public function launch($job)
{
$lock_id = $job->lock();
if (!$lock_id) {
return FALSE;
}
$settings = $job->getSettings($this->type);
$handle = 'uc-' . $job->name;
$process = new BackgroundProcess($handle);
$this->exec_status = $this->status = BACKGROUND_PROCESS_STATUS_LOCKED;
// Always run cron job as anonymous user.
$process->uid = 0;
$process->service_group = $settings['service_group'];
$service_host = $process->determineServiceHost();
if ($this->scheduledLaunch) {
$init_message = t('Launched at service host @name', array('@name' => $service_host));
} else {
$init_message = t('Launched manually at service host @name', array('@name' => $service_host));
}
// We know that the latest log entry has been used for determining the
// schedule. Load the latest log entry and store the timestamp of it for
// later use.
if (!empty($job->recheck)) {
$log_entry = isset($job->log_entry) ? $job->log_entry : $job->loadLatestLogEntry();
$recheck = $log_entry->start_time;
} else {
$recheck = FALSE;
}
$log_entry = $job->startLog($lock_id, $init_message);
if (!$process->execute(array(get_class($this), 'job_callback'), array($job->name, $lock_id, $recheck))) {
watchdog('bgpl_launcher', 'Could not execute background process dispatch for handle @handle', array('@handle' => $handle), WATCHDOG_ERROR);
$log_entry->finish();
$this->unlock($lock_id);
return FALSE;
}
// We want to finish the log in the sub-request.
$log_entry->unCatchMessages();
drupal_set_message(t('@name: @init_message', array('@name' => $job->name, '@init_message' => $init_message)));
return TRUE;
}
