Current File : /www/varak.net/shop.varak.net/classes/cache/CacheApc.php
<?php
/*
* 2007-2016 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
* @author PrestaShop SA <contact@prestashop.com>
* @copyright 2007-2016 PrestaShop SA
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
* International Registered Trademark & Property of PrestaShop SA
*/
/**
* This class require PECL APC extension
*
* @since 1.5.0
*/
class CacheApcCore extends Cache
{
public function __construct()
{
if (!function_exists('apc_exists'))
{
$this->keys = array();
$cache_info = apc_cache_info((extension_loaded('apcu') === true) ? '' : 'user');
foreach ($cache_info['cache_list'] as $entry)
{
if (isset($entry['key']))
$this->keys[$entry['key']] = $entry['ttl'];
else
$this->keys[$entry['info']] = $entry['ttl'];
}
}
}
/**
* Delete one or several data from cache (* joker can be used, but avoid it !)
* E.g.: delete('*'); delete('my_prefix_*'); delete('my_key_name');
*
* @param string $key
* @return bool
*/
public function delete($key)
{
if ($key == '*')
$this->flush();
elseif (strpos($key, '*') === false)
$this->_delete($key);
else
{
$pattern = str_replace('\\*', '.*', preg_quote($key));
$cache_info = apc_cache_info((extension_loaded('apcu') === true) ? '' : 'user');
foreach ($cache_info['cache_list'] as $entry)
{
if (isset($entry['key']))
$key = $entry['key'];
else
$key = $entry['info'];
if (preg_match('#^'.$pattern.'$#', $key))
$this->_delete($key);
}
}
return true;
}
/**
* @see Cache::_set()
*/
protected function _set($key, $value, $ttl = 0)
{
return apc_store($key, $value, $ttl);
}
/**
* @see Cache::_get()
*/
protected function _get($key)
{
return apc_fetch($key);
}
/**
* @see Cache::_exists()
*/
protected function _exists($key)
{
if (!function_exists('apc_exists'))
return isset($this->keys[$key]);
else
return apc_exists($key);
}
/**
* @see Cache::_delete()
*/
protected function _delete($key)
{
return apc_delete($key);
}
/**
* @see Cache::_writeKeys()
*/
protected function _writeKeys()
{
}
/**
* @see Cache::flush()
*/
public function flush()
{
return apc_clear_cache();
}
/**
* Store a data in cache
*
* @param string $key
* @param mixed $value
* @param int $ttl
* @return bool
*/
public function set($key, $value, $ttl = 0)
{
return $this->_set($key, $value, $ttl);
}
/**
* Retrieve a data from cache
*
* @param string $key
* @return mixed
*/
public function get($key)
{
return $this->_get($key);
}
/**
* Check if a data is cached
*
* @param string $key
* @return bool
*/
public function exists($key)
{
return $this->_exists($key);
}
}
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