162 lines
2.8 KiB
PHP
162 lines
2.8 KiB
PHP
<?php defined('SYSPATH') OR die('No direct access allowed.');
|
|
/**
|
|
* XCache-based Cache driver.
|
|
*
|
|
* $Id: Memcache.php 4605 2009-09-14 17:22:21Z kiall $
|
|
*
|
|
* @package Cache
|
|
* @author Kohana Team
|
|
* @copyright (c) 2007-2009 Kohana Team
|
|
* @license http://kohanaphp.com/license
|
|
* @TODO Check if XCache cleans its own keys.
|
|
*/
|
|
class Cache_Xcache_Driver extends Cache_Driver {
|
|
protected $config;
|
|
|
|
public function __construct($config)
|
|
{
|
|
if ( ! extension_loaded('xcache'))
|
|
throw new Cache_Exception('The xcache PHP extension must be loaded to use this driver.');
|
|
|
|
$this->config = $config;
|
|
}
|
|
|
|
public function set($items, $tags = NULL, $lifetime = NULL)
|
|
{
|
|
if ($tags !== NULL)
|
|
{
|
|
Kohana_Log::add('debug', __('Cache: XCache driver does not support tags'));
|
|
}
|
|
|
|
foreach ($items as $key => $value)
|
|
{
|
|
if (is_resource($value))
|
|
throw new Cache_Exception('Caching of resources is impossible, because resources cannot be serialised.');
|
|
|
|
if ( ! xcache_set($key, $value, $lifetime))
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
public function get($keys, $single = FALSE)
|
|
{
|
|
$items = array();
|
|
|
|
foreach ($keys as $key)
|
|
{
|
|
if (xcache_isset($id))
|
|
{
|
|
$items[$key] = xcache_get($id);
|
|
}
|
|
else
|
|
{
|
|
$items[$key] = NULL;
|
|
}
|
|
}
|
|
|
|
if ($single)
|
|
{
|
|
return ($items === FALSE OR count($items) > 0) ? current($items) : NULL;
|
|
}
|
|
else
|
|
{
|
|
return ($items === FALSE) ? array() : $items;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get cache items by tag
|
|
*/
|
|
public function get_tag($tags)
|
|
{
|
|
Kohana_Log::add('debug', __('Cache: XCache driver does not support tags'));
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Delete cache item by key
|
|
*/
|
|
public function delete($keys)
|
|
{
|
|
foreach ($keys as $key)
|
|
{
|
|
if ( ! xcache_unset($key))
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Delete cache items by tag
|
|
*/
|
|
public function delete_tag($tags)
|
|
{
|
|
Kohana_Log::add('debug', __('Cache: XCache driver does not support tags'));
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Empty the cache
|
|
*/
|
|
public function delete_all()
|
|
{
|
|
$this->auth();
|
|
$result = TRUE;
|
|
|
|
for ($i = 0, $max = xcache_count(XC_TYPE_VAR); $i < $max; $i++)
|
|
{
|
|
if (xcache_clear_cache(XC_TYPE_VAR, $i) !== NULL)
|
|
{
|
|
$result = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Undo the login
|
|
$this->auth(TRUE);
|
|
|
|
return $result;
|
|
}
|
|
|
|
private function auth($reverse = FALSE)
|
|
{
|
|
static $backup = array();
|
|
|
|
$keys = array('PHP_AUTH_USER', 'PHP_AUTH_PW');
|
|
|
|
foreach ($keys as $key)
|
|
{
|
|
if ($reverse)
|
|
{
|
|
if (isset($backup[$key]))
|
|
{
|
|
$_SERVER[$key] = $backup[$key];
|
|
unset($backup[$key]);
|
|
}
|
|
else
|
|
{
|
|
unset($_SERVER[$key]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$value = getenv($key);
|
|
|
|
if ( ! empty($value))
|
|
{
|
|
$backup[$key] = $value;
|
|
}
|
|
|
|
$_SERVER[$key] = $this->config->{$key};
|
|
}
|
|
}
|
|
}
|
|
} // End Cache XCache Driver
|