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<?php
/**
* @package Joomla.Platform
* @subpackage Session
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* eAccelerator session storage handler for PHP
*
* @package Joomla.Platform
* @subpackage Session
* @see http://www.php.net/manual/en/function.session-set-save-handler.php
* @since 11.1
*/
class JSessionStorageEaccelerator extends JSessionStorage
{
/**
* Constructor
*
* @param array $options Optional parameters.
*
* @since 11.1
*/
public function __construct($options = array())
{
if (!$this->test())
{
return JError::raiseError(404, JText::_('JLIB_SESSION_EACCELERATOR_EXTENSION_NOT_AVAILABLE'));
}
parent::__construct($options);
}
/**
* Read the data for a particular session identifier from the SessionHandler backend.
*
* @param string $id The session identifier.
*
* @return string The session data.
*
* @since 11.1
*/
public function read($id)
{
$sess_id = 'sess_' . $id;
return (string) eaccelerator_get($sess_id);
}
/**
* Write session data to the SessionHandler backend.
*
* @param string $id The session identifier.
* @param string $session_data The session data.
*
* @return boolean True on success, false otherwise.
*
* @since 11.1
*/
public function write($id, $session_data)
{
$sess_id = 'sess_' . $id;
return eaccelerator_put($sess_id, $session_data, ini_get("session.gc_maxlifetime"));
}
/**
* Destroy the data for a particular session identifier in the SessionHandler backend.
*
* @param string $id The session identifier.
*
* @return boolean True on success, false otherwise.
*/
public function destroy($id)
{
$sess_id = 'sess_' . $id;
return eaccelerator_rm($sess_id);
}
/**
* Garbage collect stale sessions from the SessionHandler backend.
*
* @param integer $maxlifetime The maximum age of a session.
*
* @return boolean True on success, false otherwise.
*/
public function gc($maxlifetime = null)
{
eaccelerator_gc();
return true;
}
/**
* Test to see if the SessionHandler is available.
*
* @return boolean True on success, false otherwise.
*/
public static function test()
{
return (extension_loaded('eaccelerator') && function_exists('eaccelerator_get'));
}
}