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<?php
/**
*
* @package acm
* @copyright (c) 2005, 2009 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
namespace phpbb\cache\driver;
if (!defined('PHPBB_ACM_MEMCACHE_PORT'))
{
define('PHPBB_ACM_MEMCACHE_PORT', 11211);
}
if (!defined('PHPBB_ACM_MEMCACHE_COMPRESS'))
{
define('PHPBB_ACM_MEMCACHE_COMPRESS', false);
}
if (!defined('PHPBB_ACM_MEMCACHE_HOST'))
{
define('PHPBB_ACM_MEMCACHE_HOST', 'localhost');
}
if (!defined('PHPBB_ACM_MEMCACHE'))
{
//can define multiple servers with host1/port1,host2/port2 format
define('PHPBB_ACM_MEMCACHE', PHPBB_ACM_MEMCACHE_HOST . '/' . PHPBB_ACM_MEMCACHE_PORT);
}
/**
* ACM for Memcached
* @package acm
*/
class memcache extends \phpbb\cache\driver\memory
{
var $extension = 'memcache';
var $memcache;
var $flags = 0;
function __construct()
{
// Call the parent constructor
parent::__construct();
$this->memcache = new \Memcache;
foreach(explode(',', PHPBB_ACM_MEMCACHE) as $u)
{
$parts = explode('/', $u);
$this->memcache->addServer(trim($parts[0]), trim($parts[1]));
}
$this->flags = (PHPBB_ACM_MEMCACHE_COMPRESS) ? MEMCACHE_COMPRESSED : 0;
}
/**
* {@inheritDoc}
*/
function unload()
{
parent::unload();
$this->memcache->close();
}
/**
* {@inheritDoc}
*/
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 $this->memcache->get($this->key_prefix . $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, $ttl = 2592000)
{
if (!$this->memcache->replace($this->key_prefix . $var, $data, $this->flags, $ttl))
{
return $this->memcache->set($this->key_prefix . $var, $data, $this->flags, $ttl);
}
return true;
}
/**
* Remove an item from the cache
*
* @access protected
* @param string $var Cache key
* @return bool True if the operation succeeded
*/
function _delete($var)
{
return $this->memcache->delete($this->key_prefix . $var);
}
}
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