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<?php declare(strict_types=1);
/**
* @copyright Copyright (c) 2019 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\DocumentServer\IPC;
class RedisIPCBackend implements IIPCBackend {
private $redis;
public function __construct(\Redis $redis) {
$this->redis = $redis;
}
public function initChannel(string $channel) {
}
public function cleanupChannel(string $channel) {
$this->redis->del('ipc_' . $channel);
}
public function pushMessage(string $channel, string $message) {
$this->redis->rPush('ipc_' . $channel, $message);
}
public function popMessage(string $channel, int $timeout): ?string {
$response = $this->redis->blPop('ipc_' . $channel, $timeout);
if (count($response) < 2) {
return null;
}
list(, $message) = $response;
if (is_string($message)) {
return $message;
} else {
return null;
}
}
}
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