charitable / vendor / guzzlehttp / promises / src / TaskQueueInterface.php

TaskQueueInterface.php in Charitable – Donation & Fundraising Platform (Donation Forms, Recurring Donations & Fundraising Campaigns) 1.8.13, at vendor/guzzlehttp/promises/src/TaskQueueInterface.php

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