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103 lines
2.0 KiB
PHP
103 lines
2.0 KiB
PHP
<?php
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/**
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*
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* @package acm
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* @copyright (c) 2005, 2009 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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namespace phpbb\cache\driver;
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/**
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* ACM for eAccelerator
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* @package acm
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* @todo Missing locks from destroy() talk with David
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*/
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class eaccelerator extends \phpbb\cache\driver\memory
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{
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var $extension = 'eaccelerator';
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var $function = 'eaccelerator_get';
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var $serialize_header = '#phpbb-serialized#';
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/**
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* {@inheritDoc}
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*/
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function purge()
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{
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foreach (eaccelerator_list_keys() as $var)
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{
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// @todo Check why the substr()
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// @todo Only unset vars matching $this->key_prefix
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eaccelerator_rm(substr($var['name'], 1));
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}
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parent::purge();
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}
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/**
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* {@inheritDoc}
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*/
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function tidy()
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{
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eaccelerator_gc();
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set_config('cache_last_gc', time(), true);
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}
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/**
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* Fetch an item from the cache
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*
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* @access protected
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* @param string $var Cache key
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* @return mixed Cached data
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*/
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function _read($var)
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{
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$result = eaccelerator_get($this->key_prefix . $var);
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if ($result === null)
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{
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return false;
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}
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// Handle serialized objects
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if (is_string($result) && strpos($result, $this->serialize_header . 'O:') === 0)
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{
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$result = unserialize(substr($result, strlen($this->serialize_header)));
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}
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return $result;
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}
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/**
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* Store data in the cache
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*
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* @access protected
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* @param string $var Cache key
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* @param mixed $data Data to store
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* @param int $ttl Time-to-live of cached data
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* @return bool True if the operation succeeded
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*/
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function _write($var, $data, $ttl = 2592000)
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{
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// Serialize objects and make them easy to detect
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$data = (is_object($data)) ? $this->serialize_header . serialize($data) : $data;
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return eaccelerator_put($this->key_prefix . $var, $data, $ttl);
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}
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/**
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* Remove an item from the cache
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*
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* @access protected
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* @param string $var Cache key
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* @return bool True if the operation succeeded
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*/
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function _delete($var)
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{
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return eaccelerator_rm($this->key_prefix . $var);
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}
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}
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