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<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
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 $data
* @return void
*
* if only one parameter is given, a typeless message will be send with that parameter as data
* @since 8.0.0
*/
public function send($type, $data = null);
/**
* close the connection of the event source
* @return void
* @since 8.0.0
*/
public function close();
}
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