1<?php
2
3declare(strict_types=1);
4
5/*
6 * This file is part of the TYPO3 CMS project.
7 *
8 * It is free software; you can redistribute it and/or modify it under
9 * the terms of the GNU General Public License, either version 2
10 * of the License, or any later version.
11 *
12 * For the full copyright and license information, please read the
13 * LICENSE.txt file that was distributed with this source code.
14 *
15 * The TYPO3 project - inspiring people to share!
16 */
17
18namespace TYPO3\CMS\Core\Mail;
19
20use Symfony\Component\Mailer\Transport\TransportInterface;
21
22/**
23 * Used to implement backwards-compatible spooling
24 */
25interface DelayedTransportInterface extends TransportInterface
26{
27    /**
28     * Sends messages using the given transport instance
29     *
30     * @param TransportInterface $transport
31     * @return int the number of messages sent
32     */
33    public function flushQueue(TransportInterface $transport): int;
34}
35