function drush_hosting_dispatch

7.x-3.x dispatch.hosting.inc drush_hosting_dispatch()

Main queue processing drush command for hostmaster.

This is a single command, which will (based on configuration) run all the other queue commands (cron, backup, tasks, stats). This is done so that there is only one cron job to configure, and allow the frequency of calls to be configured from the frontend interface.

File

./dispatch.hosting.inc, line 16
Drush include for the Hosting module's dispatch command.

Code

function drush_hosting_dispatch() {
  $now = REQUEST_TIME;
  variable_set("hosting_dispatch_last_run", $now);
  drush_log(dt("Dispatching queues."));
  $platform = node_load(HOSTING_OWN_PLATFORM);
  $root = $platform->publish_path;

  if (variable_get('hosting_dispatch_enabled', FALSE)) {
    $queues = hosting_get_queues();
    foreach ($queues as $queue => $info) {
      $semaphore = "hosting_dispatch_{$queue}_running";
      $lock_wait = drush_get_option('lock-wait', HOSTING_QUEUE_DEFAULT_LOCK_WAIT);
      if (!lock_wait($semaphore, $lock_wait) || drush_get_option('force', FALSE)) {
        if (lock_acquire($semaphore, HOSTING_QUEUE_LOCK_TIMEOUT)) {
          drush_log(dt('Acquired lock on @queue queue.', array('@queue' => $queue)));
        }
        elseif (drush_get_option('force', FALSE)) {
          drush_log(dt('Bypassing lock on @queue queue.', array('@queue' => $queue)), 'warning');
        }
        else {
          drush_die(dt('Cannot acquire lock on @queue queue.', array('@queue' => $queue)));
        }
      }
      else {
        drush_die(dt("Cannot acquire lock on @queue queue after waiting @wait seconds. A longer wait time can be set with the --lock-wait option.", array('@queue' => $queue, '@wait' => $lock_wait)));
      }

      if ($info['enabled']) {
        if (($now - $info["last"]) >= $info["calc_frequency"] || drush_get_option('force', FALSE)) {
          $count = $info['calc_items'] - $info['running_items'];
          if ($count <= 0) {
            drush_log(dt("Maximum number of tasks (@count) already running.", array('@count' => $info['running_items'])));
          }
          else {
            drush_log(dt("Found @running running tasks, starting @count out of @max items.", array(
              '@running' => $info['running_items'],
              '@count' => $count,
              '@max' => $info['calc_items'],
            )));
            drush_invoke_process('@self', "hosting-" . $queue, array(), array('items' => $count, 'strict' => FALSE), array('fork' => TRUE));
          }
        }
        else {
          drush_log(dt("Too early for queue @queue.", array('@queue' => $queue)));
        }
      }
      else {
        drush_log(dt("Queue @queue disabled.", array('@queue' => $queue)));
      }

      drush_log(dt('Releasing @queue lock.', array('@queue' => $queue)));
      lock_release($semaphore);
    }
  }
  else {
    drush_log(dt("Dispatching disabled."));
  }
}