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Name File: CacheApc.php

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<?php
/*
* 2007-2013 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  2007-2013 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()
	{
		$this->keys = array();
		$cache_info = apc_cache_info('user');
		foreach ($cache_info['cache_list'] as $entry)
			$this->keys[$entry['info']] = $entry['ttl'];
	}

	/**
	 * @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($key)
	{
		return isset($this->keys[$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();
	}
}