61 lines
2.2 KiB
PHP
61 lines
2.2 KiB
PHP
<?php
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/**
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* @author Robin Appelman <icewind@owncloud.com>
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*
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCP\Files\Storage;
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use OCP\Lock\ILockingProvider;
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/**
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* Storage backends that require explicit locking
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*
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* Storage backends implementing this interface do not need to implement their own locking implementation but should use the provided lockingprovider instead
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* The implementation of the locking methods only need to map internal storage paths to "lock keys"
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*
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* @since 9.0.0
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*/
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interface ILockingStorage {
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/**
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* @param string $path The path of the file to acquire the lock for
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* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
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* @param \OCP\Lock\ILockingProvider $provider
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* @throws \OCP\Lock\LockedException
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* @since 9.0.0
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*/
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public function acquireLock($path, $type, ILockingProvider $provider);
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/**
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* @param string $path The path of the file to acquire the lock for
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* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
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* @param \OCP\Lock\ILockingProvider $provider
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* @since 9.0.0
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*/
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public function releaseLock($path, $type, ILockingProvider $provider);
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/**
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* @param string $path The path of the file to change the lock for
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* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
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* @param \OCP\Lock\ILockingProvider $provider
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* @throws \OCP\Lock\LockedException
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* @since 9.0.0
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*/
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public function changeLock($path, $type, ILockingProvider $provider);
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}
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