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$queue = DrupalQueue::get('queue_name', TRUE);
$item = array(
  'data' => array(
    'key' => value,
  ),
);
$queue->createItem($item);


function Some() {
  $queue = DrupalQueue::get('queue_name', TRUE);
  $array = array();
  //Generate items and clear Queue.
  while ($task = $queue->claimItem()) {
    $array[] = $task;
    $queue->deleteItem($task);
  }
  //Some actions with $array().
}