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<?php
declare(strict_types=1);
/**
* @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\Lock;
/**
* Interface ILockingProvider
*
* @package OCP\Lock
* @since 8.1.0
*/
interface ILockingProvider {
/**
* @since 8.1.0
*/
const LOCK_SHARED = 1;
/**
* @since 8.1.0
*/
const LOCK_EXCLUSIVE = 2;
/**
* @param string $path
* @param int $type self::LOCK_SHARED or self::LOCK_EXCLUSIVE
* @return bool
* @since 8.1.0
*/
public function isLocked(string $path, int $type): bool;
/**
* @param string $path
* @param int $type self::LOCK_SHARED or self::LOCK_EXCLUSIVE
* @throws \OCP\Lock\LockedException
* @since 8.1.0
*/
public function acquireLock(string $path, int $type);
/**
* @param string $path
* @param int $type self::LOCK_SHARED or self::LOCK_EXCLUSIVE
* @since 8.1.0
*/
public function releaseLock(string $path, int $type);
/**
* Change the type of an existing lock
*
* @param string $path
* @param int $targetType self::LOCK_SHARED or self::LOCK_EXCLUSIVE
* @throws \OCP\Lock\LockedException
* @since 8.1.0
*/
public function changeLock(string $path, int $targetType);
/**
* release all lock acquired by this instance
* @since 8.1.0
*/
public function releaseAll();
}