mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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130 lines
3.7 KiB
PHP
130 lines
3.7 KiB
PHP
<?php
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/**
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* APC storage engine for cache.
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*
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Cache.Engine
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* @since CakePHP(tm) v 1.2.0.4933
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* APC storage engine for cache
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*
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* @package Cake.Cache.Engine
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*/
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class ApcEngine extends CacheEngine {
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/**
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* Initialize the Cache Engine
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*
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* Called automatically by the cache frontend
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* To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
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*
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* @param array $settings array of setting for the engine
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* @return boolean True if the engine has been successfully initialized, false if not
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* @see CacheEngine::__defaults
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*/
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public function init($settings = array()) {
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parent::init(array_merge(array('engine' => 'Apc', 'prefix' => Inflector::slug(APP_DIR) . '_'), $settings));
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return function_exists('apc_cache_info');
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}
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/**
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* Write data for key into cache
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*
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* @param string $key Identifier for the data
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* @param mixed $value Data to be cached
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* @param integer $duration How long to cache the data, in seconds
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* @return boolean True if the data was successfully cached, false on failure
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*/
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public function write($key, $value, $duration) {
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if ($duration == 0) {
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$expires = 0;
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} else {
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$expires = time() + $duration;
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}
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apc_store($key.'_expires', $expires, $duration);
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return apc_store($key, $value, $duration);
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}
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/**
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* Read a key from the cache
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*
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* @param string $key Identifier for the data
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* @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
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*/
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public function read($key) {
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$time = time();
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$cachetime = intval(apc_fetch($key.'_expires'));
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if ($cachetime !== 0 && ($cachetime < $time || ($time + $this->settings['duration']) < $cachetime)) {
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return false;
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}
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return apc_fetch($key);
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}
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/**
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* Increments the value of an integer cached key
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*
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* @param string $key Identifier for the data
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* @param integer $offset How much to increment
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* @return New incremented value, false otherwise
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*/
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public function increment($key, $offset = 1) {
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return apc_inc($key, $offset);
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}
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/**
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* Decrements the value of an integer cached key
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*
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* @param string $key Identifier for the data
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* @param integer $offset How much to subtract
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* @return New decremented value, false otherwise
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*/
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public function decrement($key, $offset = 1) {
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return apc_dec($key, $offset);
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}
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/**
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* Delete a key from the cache
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*
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* @param string $key Identifier for the data
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* @return boolean True if the value was successfully deleted, false if it didn't exist or couldn't be removed
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*/
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public function delete($key) {
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return apc_delete($key);
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}
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/**
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* Delete all keys from the cache. This will clear every cache config using APC.
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*
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* @param boolean $check If true, nothing will be cleared, as entries are removed
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* from APC as they expired. This flag is really only used by FileEngine.
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* @return boolean True Returns true.
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*/
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public function clear($check) {
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if ($check) {
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return true;
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}
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$info = apc_cache_info('user');
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$cacheKeys = $info['cache_list'];
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unset($info);
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foreach ($cacheKeys as $key) {
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if (strpos($key['info'], $this->settings['prefix']) === 0) {
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apc_delete($key['info']);
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}
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}
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return true;
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}
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}
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