Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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eaccelerator.php
001 <?php
002 /**
003 *
004 * This file is part of the phpBB Forum Software package.
005 *
006 * @copyright (c) phpBB Limited <https://www.phpbb.com>
007 * @license GNU General Public License, version 2 (GPL-2.0)
008 *
009 * For full copyright and license information, please see
010 * the docs/CREDITS.txt file.
011 *
012 */
013
014 namespace phpbb\cache\driver;
015
016 /**
017 * ACM for eAccelerator
018 * @todo Missing locks from destroy() talk with David
019 */
020 class eaccelerator extends \phpbb\cache\driver\memory
021 {
022 var $extension = 'eaccelerator';
023 var $function = 'eaccelerator_get';
024
025 var $serialize_header = '#phpbb-serialized#';
026
027 /**
028 * {@inheritDoc}
029 */
030 function purge()
031 {
032 foreach (eaccelerator_list_keys() as $var)
033 {
034 // @todo Check why the substr()
035 // @todo Only unset vars matching $this->key_prefix
036 eaccelerator_rm(substr($var['name'], 1));
037 }
038
039 parent::purge();
040 }
041
042 /**
043 * {@inheritDoc}
044 */
045 function tidy()
046 {
047 global $config;
048
049 eaccelerator_gc();
050
051 $config->set('cache_last_gc', time(), false);
052 }
053
054 /**
055 * Fetch an item from the cache
056 *
057 * @access protected
058 * @param string $var Cache key
059 * @return mixed Cached data
060 */
061 function _read($var)
062 {
063 $result = eaccelerator_get($this->key_prefix . $var);
064
065 if ($result === null)
066 {
067 return false;
068 }
069
070 // Handle serialized objects
071 if (is_string($result) && strpos($result, $this->serialize_header . 'O:') === 0)
072 {
073 $result = unserialize(substr($result, strlen($this->serialize_header)));
074 }
075
076 return $result;
077 }
078
079 /**
080 * Store data in the cache
081 *
082 * @access protected
083 * @param string $var Cache key
084 * @param mixed $data Data to store
085 * @param int $ttl Time-to-live of cached data
086 * @return bool True if the operation succeeded
087 */
088 function _write($var, $data, $ttl = 2592000)
089 {
090 // Serialize objects and make them easy to detect
091 $data = (is_object($data)) ? $this->serialize_header . serialize($data) : $data;
092
093 return eaccelerator_put($this->key_prefix . $var, $data, $ttl);
094 }
095
096 /**
097 * Remove an item from the cache
098 *
099 * @access protected
100 * @param string $var Cache key
101 * @return bool True if the operation succeeded
102 */
103 function _delete($var)
104 {
105 return eaccelerator_rm($this->key_prefix . $var);
106 }
107 }
108