136 lines
3.2 KiB
PHP
136 lines
3.2 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Andreas Fischer <bantu@owncloud.com>
|
|
* @author Clark Tomlinson <fallen013@gmail.com>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Otto Sabart <ottosabart@seberm.com>
|
|
* @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 OC\Memcache;
|
|
|
|
use OCP\IMemcache;
|
|
|
|
class APC extends Cache implements IMemcache {
|
|
use CASTrait {
|
|
cas as casEmulated;
|
|
}
|
|
|
|
use CADTrait;
|
|
|
|
public function get($key) {
|
|
$result = apc_fetch($this->getPrefix() . $key, $success);
|
|
if (!$success) {
|
|
return null;
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
public function set($key, $value, $ttl = 0) {
|
|
return apc_store($this->getPrefix() . $key, $value, $ttl);
|
|
}
|
|
|
|
public function hasKey($key) {
|
|
return apc_exists($this->getPrefix() . $key);
|
|
}
|
|
|
|
public function remove($key) {
|
|
return apc_delete($this->getPrefix() . $key);
|
|
}
|
|
|
|
public function clear($prefix = '') {
|
|
$ns = $this->getPrefix() . $prefix;
|
|
$ns = preg_quote($ns, '/');
|
|
$iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY);
|
|
return apc_delete($iter);
|
|
}
|
|
|
|
/**
|
|
* Set a value in the cache if it's not already stored
|
|
*
|
|
* @param string $key
|
|
* @param mixed $value
|
|
* @param int $ttl Time To Live in seconds. Defaults to 60*60*24
|
|
* @return bool
|
|
*/
|
|
public function add($key, $value, $ttl = 0) {
|
|
return apc_add($this->getPrefix() . $key, $value, $ttl);
|
|
}
|
|
|
|
/**
|
|
* Increase a stored number
|
|
*
|
|
* @param string $key
|
|
* @param int $step
|
|
* @return int | bool
|
|
*/
|
|
public function inc($key, $step = 1) {
|
|
$this->add($key, 0);
|
|
return apc_inc($this->getPrefix() . $key, $step);
|
|
}
|
|
|
|
/**
|
|
* Decrease a stored number
|
|
*
|
|
* @param string $key
|
|
* @param int $step
|
|
* @return int | bool
|
|
*/
|
|
public function dec($key, $step = 1) {
|
|
return apc_dec($this->getPrefix() . $key, $step);
|
|
}
|
|
|
|
/**
|
|
* Compare and set
|
|
*
|
|
* @param string $key
|
|
* @param mixed $old
|
|
* @param mixed $new
|
|
* @return bool
|
|
*/
|
|
public function cas($key, $old, $new) {
|
|
// apc only does cas for ints
|
|
if (is_int($old) and is_int($new)) {
|
|
return apc_cas($this->getPrefix() . $key, $old, $new);
|
|
} else {
|
|
return $this->casEmulated($key, $old, $new);
|
|
}
|
|
}
|
|
|
|
static public function isAvailable() {
|
|
if (!extension_loaded('apc')) {
|
|
return false;
|
|
} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enabled')) {
|
|
return false;
|
|
} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enable_cli') && \OC::$CLI) {
|
|
return false;
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!function_exists('apc_exists')) {
|
|
function apc_exists($keys) {
|
|
$result = false;
|
|
apc_fetch($keys, $result);
|
|
return $result;
|
|
}
|
|
}
|