mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-24 08:53:37 +01:00
91a24e0399
Also did some benchmarking on my Macbook (with a SSD and memcached running on localhost): Checking egw_cache_memcache: 0 checks failed, 100 iterations took 0.480 sec Checking egw_cache_apc: 0 checks failed, 100 iterations took 0.025 sec Checking egw_cache_files: 0 checks failed, 100 iterations took 0.826 sec --> APC is by a factor of 20 faster then memcached, which is double as fast compared to files on a SSD
97 lines
2.6 KiB
PHP
97 lines
2.6 KiB
PHP
<?php
|
|
/**
|
|
* EGroupware API: Caching provider storing data in PHP's APC
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @package api
|
|
* @subpackage cache
|
|
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @copyright (c) 2010-12 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* Caching provider storing data in PHP's APC
|
|
*
|
|
* The provider concats all $keys with '::' to get a single string.
|
|
*
|
|
* To use this provider set in your header.inc.php:
|
|
* $GLOBALS['egw_info']['server']['cache_provider_instance'] = array('egw_cache_apc');
|
|
* and optional also $GLOBALS['egw_info']['server']['cache_provider_tree'] (defaults to instance)
|
|
*/
|
|
class egw_cache_apc extends egw_cache_provider_check implements egw_cache_provider
|
|
{
|
|
/**
|
|
* Constructor, eg. opens the connection to the backend
|
|
*
|
|
* @throws Exception if connection to backend could not be established
|
|
* @param array $params eg. array('localhost'[,'localhost:11211',...])
|
|
*/
|
|
function __construct(array $params)
|
|
{
|
|
if (!function_exists('apc_fetch')) // apc >= 3.0
|
|
{
|
|
throw new Exception (__METHOD__.'('.array2string($params).") No function apc_fetch()!");
|
|
}
|
|
if (PHP_SAPI == 'cli' && !ini_get('apc.enable_cli'))
|
|
{
|
|
throw new Exception (__METHOD__.'('.array2string($params).") APC NOT enabled for cli, check apc.enable_cli!");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Stores some data in the cache
|
|
*
|
|
* @param array $keys eg. array($level,$app,$location)
|
|
* @param mixed $data
|
|
* @param int $expiration=0
|
|
* @return boolean true on success, false on error
|
|
*/
|
|
function set(array $keys,$data,$expiration=0)
|
|
{
|
|
return apc_store(self::key($keys),$data,$expiration);
|
|
}
|
|
|
|
/**
|
|
* Get some data from the cache
|
|
*
|
|
* @param array $keys eg. array($level,$app,$location)
|
|
* @return mixed data stored or NULL if not found in cache
|
|
*/
|
|
function get(array $keys)
|
|
{
|
|
$data = apc_fetch($key=self::key($keys),$success);
|
|
|
|
if (!$success)
|
|
{
|
|
//error_log(__METHOD__."(".array2string($keys).") key='$key' NOT found!");
|
|
return null;
|
|
}
|
|
//error_log(__METHOD__."(".array2string($keys).") key='$key' found ".bytes(serialize($data))." bytes).");
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Delete some data from the cache
|
|
*
|
|
* @param array $keys eg. array($level,$app,$location)
|
|
* @return boolean true on success, false on error (eg. $key not set)
|
|
*/
|
|
function delete(array $keys)
|
|
{
|
|
return apc_delete(self::key($keys));
|
|
}
|
|
|
|
/**
|
|
* Create a single key from $keys
|
|
*
|
|
* @param array $keys
|
|
* @return string
|
|
*/
|
|
private function key(array $keys)
|
|
{
|
|
return implode('::',$keys);
|
|
}
|
|
}
|