1 files changed, 0 insertions, 120 deletions
diff --git a/lib/private/lock/memcachelockingprovider.php b/lib/private/lock/memcachelockingprovider.php
deleted file mode 100644
index 08c92950e49..00000000000
--- a/lib/private/lock/memcachelockingprovider.php
+++ /dev/null
@@ -1,120 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @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 OC\Lock;
-
-use OCP\IMemcacheTTL;
-use OCP\Lock\LockedException;
-use OCP\IMemcache;
-
-class MemcacheLockingProvider extends AbstractLockingProvider {
-	/**
-	 * @var \OCP\IMemcache
-	 */
-	private $memcache;
-
-	/**
-	 * @param \OCP\IMemcache $memcache
-	 */
-	public function __construct(IMemcache $memcache) {
-		$this->memcache = $memcache;
-	}
-
-	private function setTTL($path) {
-		if ($this->memcache instanceof IMemcacheTTL) {
-			$this->memcache->setTTL($path, self::TTL);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type self::LOCK_SHARED or self::LOCK_EXCLUSIVE
-	 * @return bool
-	 */
-	public function isLocked($path, $type) {
-		$lockValue = $this->memcache->get($path);
-		if ($type === self::LOCK_SHARED) {
-			return $lockValue > 0;
-		} else if ($type === self::LOCK_EXCLUSIVE) {
-			return $lockValue === 'exclusive';
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type self::LOCK_SHARED or self::LOCK_EXCLUSIVE
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function acquireLock($path, $type) {
-		if ($type === self::LOCK_SHARED) {
-			if (!$this->memcache->inc($path)) {
-				throw new LockedException($path);
-			}
-		} else {
-			$this->memcache->add($path, 0);
-			if (!$this->memcache->cas($path, 0, 'exclusive')) {
-				throw new LockedException($path);
-			}
-		}
-		$this->setTTL($path);
-		$this->markAcquire($path, $type);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type self::LOCK_SHARED or self::LOCK_EXCLUSIVE
-	 */
-	public function releaseLock($path, $type) {
-		if ($type === self::LOCK_SHARED) {
-			if (isset($this->acquiredLocks['shared'][$path]) and $this->acquiredLocks['shared'][$path] > 0) {
-				$this->memcache->dec($path);
-				$this->memcache->cad($path, 0);
-			}
-		} else if ($type === self::LOCK_EXCLUSIVE) {
-			$this->memcache->cad($path, 'exclusive');
-		}
-		$this->markRelease($path, $type);
-	}
-
-	/**
-	 * Change the type of an existing lock
-	 *
-	 * @param string $path
-	 * @param int $targetType self::LOCK_SHARED or self::LOCK_EXCLUSIVE
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function changeLock($path, $targetType) {
-		if ($targetType === self::LOCK_SHARED) {
-			if (!$this->memcache->cas($path, 'exclusive', 1)) {
-				throw new LockedException($path);
-			}
-		} else if ($targetType === self::LOCK_EXCLUSIVE) {
-			// we can only change a shared lock to an exclusive if there's only a single owner of the shared lock
-			if (!$this->memcache->cas($path, 1, 'exclusive')) {
-				throw new LockedException($path);
-			}
-		}
-		$this->setTTL($path);
-		$this->markChange($path, $targetType);
-	}
-}