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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCP;
/**
* wrapper for server side events (http://en.wikipedia.org/wiki/Server-sent_events)
* includes a fallback for older browsers and IE
*
* use server side events with caution, to many open requests can hang the server
*
* The event source will initialize the connection to the client when the first data is sent
* @since 8.0.0
*/
interface IEventSource {
/**
* send a message to the client
*
* @param string $type One of success, notice, error, failure and done. Used in core/js/update.js
* @param mixed $data
*
* if only one parameter is given, a typeless message will be send with that parameter as data
* @since 8.0.0
*/
public function send($type, $data = null);
/**
* close the connection of the event source
* @since 8.0.0
*/
public function close();
}
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