class BatchMemoryQueue

_batch_populate_queue in includes/form.inc

Populates a job queue with the operations of a batch set.

class BatchMemoryQueue  extends MemoryQueue {
 
 /**
 * Overrides MemoryQueue::claimItem().
 *
 * Unlike MemoryQueue::claimItem(), this method provides a default lease
 * time of 0 (no expiration) instead of 30. This allows the item to be
 * claimed repeatedly until it is deleted.
 */
 public function claimItem($lease_time = 0) {
 if (!empty($this->queue )) {
 reset ($this->queue );
 return current ($this->queue );
 }
 return FALSE;
 }
 
 /**
 * Retrieves all remaining items in the queue.
 *
 * This is specific to Batch API and is not part of the DrupalQueueInterface.
 */
 public function getAllItems() {
 $result = array();
 foreach ($this->queue  as $item) {
 $result[] = $item->data ;
 }
 return $result;
 }
}