Loop workers

The Loop Workers module allows developers to define workers that continually process a loop of items. This is a similar concept to Drupal's QueueAPI, but instead of a queue that items are put into to be processed, a loop is a defined list which the worker continually works over, returning to the start automatically when it reaches the end.

One use case might be a site which needs to check the body field of all nodes to ensure that no external links are broken.

Loop worker plugins may either be run with core's hook_cron, or Ultimate Cron may be used.