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| Current File : /home1/savoy/www/savoyglobal.net/futuredraft/system/libraries/Cache/drivers/Cache_apc.php |
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2006 - 2012 EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 2.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* CodeIgniter APC Caching Class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Core
* @author ExpressionEngine Dev Team
* @link
*/
class CI_Cache_apc extends CI_Driver {
/**
* Get
*
* Look for a value in the cache. If it exists, return the data
* if not, return FALSE
*
* @param string
* @return mixed value that is stored/FALSE on failure
*/
public function get($id)
{
$data = apc_fetch($id);
return (is_array($data)) ? $data[0] : FALSE;
}
// ------------------------------------------------------------------------
/**
* Cache Save
*
* @param string Unique Key
* @param mixed Data to store
* @param int Length of time (in seconds) to cache the data
*
* @return boolean true on success/false on failure
*/
public function save($id, $data, $ttl = 60)
{
return apc_store($id, array($data, time(), $ttl), $ttl);
}
// ------------------------------------------------------------------------
/**
* Delete from Cache
*
* @param mixed unique identifier of the item in the cache
* @param boolean true on success/false on failure
*/
public function delete($id)
{
return apc_delete($id);
}
// ------------------------------------------------------------------------
/**
* Clean the cache
*
* @return boolean false on failure/true on success
*/
public function clean()
{
return apc_clear_cache('user');
}
// ------------------------------------------------------------------------
/**
* Cache Info
*
* @param string user/filehits
* @return mixed array on success, false on failure
*/
public function cache_info($type = NULL)
{
return apc_cache_info($type);
}
// ------------------------------------------------------------------------
/**
* Get Cache Metadata
*
* @param mixed key to get cache metadata on
* @return mixed array on success/false on failure
*/
public function get_metadata($id)
{
$stored = apc_fetch($id);
if (count($stored) !== 3)
{
return FALSE;
}
list($data, $time, $ttl) = $stored;
return array(
'expire' => $time + $ttl,
'mtime' => $time,
'data' => $data
);
}
// ------------------------------------------------------------------------
/**
* is_supported()
*
* Check to see if APC is available on this system, bail if it isn't.
*/
public function is_supported()
{
if ( ! extension_loaded('apc') OR ini_get('apc.enabled') != "1")
{
log_message('error', 'The APC PHP extension must be loaded to use APC Cache.');
return FALSE;
}
return TRUE;
}
// ------------------------------------------------------------------------
}
// End Class
/* End of file Cache_apc.php */
/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */