104 lines
2.8 KiB
PHP
104 lines
2.8 KiB
PHP
<?php
|
|
/**
|
|
* @author Andreas Fischer <bantu@owncloud.com>
|
|
* @author Bart Visscher <bartv@thisnet.nl>
|
|
* @author Robin Appelman <icewind@owncloud.com>
|
|
*
|
|
* @copyright Copyright (c) 2015, 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\Memcache;
|
|
|
|
class Memcached extends Cache {
|
|
/**
|
|
* @var \Memcached $cache
|
|
*/
|
|
private static $cache = null;
|
|
|
|
public function __construct($prefix = '') {
|
|
parent::__construct($prefix);
|
|
if (is_null(self::$cache)) {
|
|
self::$cache = new \Memcached();
|
|
$servers = \OC_Config::getValue('memcached_servers');
|
|
if (!$servers) {
|
|
$server = \OC_Config::getValue('memcached_server');
|
|
if ($server) {
|
|
$servers = array($server);
|
|
} else {
|
|
$servers = array(array('localhost', 11211));
|
|
}
|
|
}
|
|
self::$cache->addServers($servers);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* entries in XCache gets namespaced to prevent collisions between owncloud instances and users
|
|
*/
|
|
protected function getNameSpace() {
|
|
return $this->prefix;
|
|
}
|
|
|
|
public function get($key) {
|
|
$result = self::$cache->get($this->getNamespace() . $key);
|
|
if ($result === false and self::$cache->getResultCode() == \Memcached::RES_NOTFOUND) {
|
|
return null;
|
|
} else {
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
public function set($key, $value, $ttl = 0) {
|
|
if ($ttl > 0) {
|
|
return self::$cache->set($this->getNamespace() . $key, $value, $ttl);
|
|
} else {
|
|
return self::$cache->set($this->getNamespace() . $key, $value);
|
|
}
|
|
}
|
|
|
|
public function hasKey($key) {
|
|
self::$cache->get($this->getNamespace() . $key);
|
|
return self::$cache->getResultCode() === \Memcached::RES_SUCCESS;
|
|
}
|
|
|
|
public function remove($key) {
|
|
return self::$cache->delete($this->getNamespace() . $key);
|
|
}
|
|
|
|
public function clear($prefix = '') {
|
|
$prefix = $this->getNamespace() . $prefix;
|
|
$allKeys = self::$cache->getAllKeys();
|
|
$keys = array();
|
|
$prefixLength = strlen($prefix);
|
|
foreach ($allKeys as $key) {
|
|
if (substr($key, 0, $prefixLength) === $prefix) {
|
|
$keys[] = $key;
|
|
}
|
|
}
|
|
if (method_exists(self::$cache, 'deleteMulti')) {
|
|
self::$cache->deleteMulti($keys);
|
|
} else {
|
|
foreach ($keys as $key) {
|
|
self::$cache->delete($key);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static public function isAvailable() {
|
|
return extension_loaded('memcached');
|
|
}
|
|
}
|