You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
169 lines
4.3 KiB
169 lines
4.3 KiB
<?php |
|
/** |
|
* @copyright Copyright (c) 2016, ownCloud, Inc. |
|
* |
|
* @author Andreas Fischer <bantu@owncloud.com> |
|
* @author Bart Visscher <bartv@thisnet.nl> |
|
* @author Clark Tomlinson <fallen013@gmail.com> |
|
* @author Lukas Reschke <lukas@statuscode.ch> |
|
* @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 OC\Memcache; |
|
|
|
use OCP\IMemcache; |
|
|
|
class APCu extends Cache implements IMemcache { |
|
use CASTrait { |
|
cas as casEmulated; |
|
} |
|
|
|
use CADTrait; |
|
|
|
public function get($key) { |
|
$result = apcu_fetch($this->getPrefix() . $key, $success); |
|
if (!$success) { |
|
return null; |
|
} |
|
return $result; |
|
} |
|
|
|
public function set($key, $value, $ttl = 0) { |
|
return apcu_store($this->getPrefix() . $key, $value, $ttl); |
|
} |
|
|
|
public function hasKey($key) { |
|
return apcu_exists($this->getPrefix() . $key); |
|
} |
|
|
|
public function remove($key) { |
|
return apcu_delete($this->getPrefix() . $key); |
|
} |
|
|
|
public function clear($prefix = '') { |
|
$ns = $this->getPrefix() . $prefix; |
|
$ns = preg_quote($ns, '/'); |
|
if(class_exists('\APCIterator')) { |
|
$iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY); |
|
} else { |
|
$iter = new \APCUIterator('/^' . $ns . '/', APC_ITER_KEY); |
|
} |
|
return apcu_delete($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, $ttl = 0) { |
|
return apcu_add($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); |
|
/** |
|
* TODO - hack around a PHP 7 specific issue in APCu |
|
* |
|
* on PHP 7 the apcu_inc method on a non-existing object will increment |
|
* "0" and result in "1" as value - therefore we check for existence |
|
* first |
|
* |
|
* on PHP 5.6 this is not the case |
|
* |
|
* see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221 |
|
* for details |
|
*/ |
|
return apcu_exists($this->getPrefix() . $key) |
|
? apcu_inc($this->getPrefix() . $key, $step) |
|
: false; |
|
} |
|
|
|
/** |
|
* Decrease a stored number |
|
* |
|
* @param string $key |
|
* @param int $step |
|
* @return int | bool |
|
*/ |
|
public function dec($key, $step = 1) { |
|
/** |
|
* TODO - hack around a PHP 7 specific issue in APCu |
|
* |
|
* on PHP 7 the apcu_dec method on a non-existing object will decrement |
|
* "0" and result in "-1" as value - therefore we check for existence |
|
* first |
|
* |
|
* on PHP 5.6 this is not the case |
|
* |
|
* see https://github.com/krakjoe/apcu/issues/183#issuecomment-244038221 |
|
* for details |
|
*/ |
|
return apcu_exists($this->getPrefix() . $key) |
|
? apcu_dec($this->getPrefix() . $key, $step) |
|
: false; |
|
} |
|
|
|
/** |
|
* 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($new)) { |
|
return apcu_cas($this->getPrefix() . $key, $old, $new); |
|
} else { |
|
return $this->casEmulated($key, $old, $new); |
|
} |
|
} |
|
|
|
/** |
|
* @return bool |
|
*/ |
|
static public function isAvailable() { |
|
if (!extension_loaded('apcu')) { |
|
return false; |
|
} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enabled')) { |
|
return false; |
|
} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enable_cli') && \OC::$CLI) { |
|
return false; |
|
} elseif ( |
|
version_compare(phpversion('apc') ?: '0.0.0', '4.0.6') === -1 && |
|
version_compare(phpversion('apcu') ?: '0.0.0', '5.1.0') === -1 |
|
) { |
|
return false; |
|
} else { |
|
return true; |
|
} |
|
} |
|
}
|
|
|