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<?php
/**
*
* @package acm
* @version $Id$
* @copyright (c) 2005, 2009 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
if (!extension_loaded('memcache') || !defined('PHPBB_ACM_MEMCACHE_HOST'))
{
// Memcached will not work, include the null ACM at least the
// board will still work.
// @todo Could change this for a simple error though.
require("${phpbb_root_path}includes/acm/acm_null.$phpEx");
return;
}
// Include the abstract base
if (!class_exists('acm_memory'))
{
require("${phpbb_root_path}includes/acm/acm_memory.$phpEx");
}
if (!defined('PHPBB_ACM_MEMCACHE_PORT'))
{
define('PHPBB_ACM_MEMCACHE_PORT', 11211);
}
if (!defined('PHPBB_ACM_MEMCACHE_COMPRESS'))
{
define('PHPBB_ACM_MEMCACHE_COMPRESS', false);
}
/**
* ACM for Memcached
* @package acm
*/
class acm extends acm_memory
{
var $memcache;
var $flags = 0;
function acm()
{
// Call the parent constructor
parent::acm_memory();
$this->memcache = new Memcache;
$this->memcache->connect(PHPBB_ACM_MEMCACHE_HOST, PHPBB_ACM_MEMCACHE_PORT);
$this->flags = (PHPBB_ACM_MEMCACHE_COMPRESS) ? MEMCACHE_COMPRESSED : 0;
}
/**
* Unload the cache resources
*
* @return void
*/
function unload()
{
parent::unload();
$this->memcache->close();
}
/**
* Purge cache data
*
* @return void
*/
function purge()
{
$this->memcache->flush();
parent::purge();
}
/**
* Fetch an item from the cache
*
* @access protected
* @param string $var Cache key
* @return mixed Cached data
*/
function _read($var)
{
return $this->memcache->get($var);
}
/**
* Store data in the cache
*
* @access protected
* @param string $var Cache key
* @param mixed $data Data to store
* @param int $ttl Time-to-live of cached data
* @return bool True if the operation succeeded
*/
function _write($var, $data, $ttl = 2592000)
{
return $this->memcache->set($var, $data, $this->flags, $ttl);
}
/**
* Remove an item from the cache
*
* @access protected
* @param string $var Cache key
* @return bool True if the operation succeeded
*/
function _delete($var)
{
return $this->memcache->delete($var);
}
}
?>
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