/**
* {@inheritDoc}
*/
public function addQueue(QueueInterface $queue)
{
if (isset($this->queues[$queue->getName()])) {
throw new QueueException('Queue already exists');
}
$this->queues[$queue->getName()] = $queue;
}
/**
* Process the queue.
*
* @param string $queueName
* @param callable $callback {
* Process item from queue
* @param array $item
* }
* @return array Items
*/
protected function processItems($queueName, $callback = null)
{
$end = time() + $this->processingTimeLimit;
$items = [];
while (time() < $end && ($item = $this->_queue->pop($queueName))) {
$items[$item['id']] = $item;
if (is_callable($callback)) {
call_user_func($callback, $item);
}
$this->_queue->delete($item);
}
return $items;
}
