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<?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 Mike Murkovic
* @copyright
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 2.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* CodeIgniter Wincache Caching Class
*
* Read more about Wincache functions here:
* http://www.php.net/manual/en/ref.wincache.php
*
* @package CodeIgniter
* @subpackage Libraries
* @category Core
* @author Mike Murkovic
* @link
*/
class CI_Cache_wincache 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($id)
{
if ($data = wincache_ucache_get($id))
{
return $data;
}
return FALSE;
}
// ------------------------------------------------------------------------
/**
* Cache Save
*
* @param string Unique Key
* @param mixed Data to store
* @param int Length of time (in seconds) to cache the data
*
* @return boolean true on success/false on failure
*/
public function save($id, $data, $ttl = 60)
{
return wincache_ucache_set($id, $data, $ttl);
}
// ------------------------------------------------------------------------
/**
* Delete from Cache
*
* @param mixed unique identifier of the item in the cache
* @param boolean true on success/false on failure
*/
public function delete($id)
{
return wincache_ucache_delete($id);
}
// ------------------------------------------------------------------------
/**
* Clean the cache
*
* @return boolean false on failure/true on success
*/
public function clean()
{
return wincache_ucache_clear();
}
// ------------------------------------------------------------------------
/**
* Cache Info
*
* @return mixed array on success, false on failure
*/
public function cache_info()
{
return wincache_ucache_info(true);
}
// ------------------------------------------------------------------------
/**
* Get Cache Metadata
*
* @param mixed key to get cache metadata on
* @return mixed array on success/false on failure
*/
public function get_metadata($id)
{
if ($stored = wincache_ucache_info(false, $id))
{
$age = $stored['ucache_entries'][1]['age_seconds'];
$ttl = $stored['ucache_entries'][1]['ttl_seconds'];
$hitcount = $stored['ucache_entries'][1]['hitcount'];
return array(
'expire' => $ttl - $age,
'hitcount' => $hitcount,
'age' => $age,
'ttl' => $ttl
);
}
return false;
}
// ------------------------------------------------------------------------
/**
* is_supported()
*
* Check to see if WinCache is available on this system, bail if it isn't.
*/
public function is_supported()
{
if ( ! extension_loaded('wincache') )
{
log_message('error', 'The Wincache PHP extension must be loaded to use Wincache Cache.');
return FALSE;
}
return TRUE;
}
// ------------------------------------------------------------------------
}
// End Class
/* End of file Cache_wincache.php */
/* Location: ./system/libraries/Cache/drivers/Cache_wincache.php */
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