1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24: 25: 26: <?php
namespace GuzzleHttp\Promise;
interface TaskQueueInterface
{
/**
* Returns true if the queue is empty.
*
* @return bool
*/
public function isEmpty();
/**
* Adds a task to the queue that will be executed the next time run is
* called.
*
* @param callable $task
*/
public function add(callable $task);
/**
* Execute all of the pending task in the queue.
*/
public function run();
}