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File:
WincacheEngine.php
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Content:
<?php /** * CakePHP(tm) : Rapid Development Framework (https://cakephp.org) * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org) * * Licensed under The MIT License * For full copyright and license information, please see the LICENSE.txt * Redistributions of files must retain the above copyright notice. * * @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org) * @link https://cakephp.org CakePHP(tm) Project * @since 2.0.0 * @license https://opensource.org/licenses/mit-license.php MIT License */ namespace Cake\Cache\Engine; use Cake\Cache\CacheEngine; /** * Wincache storage engine for cache * * Supports wincache 1.1.0 and higher. */ class WincacheEngine extends CacheEngine { /** * Contains the compiled group names * (prefixed with the global configuration prefix) * * @var array */ protected $_compiledGroupNames = []; /** * Initialize the Cache Engine * * Called automatically by the cache frontend * * @param array $config array of setting for the engine * @return bool True if the engine has been successfully initialized, false if not */ public function init(array $config = []) { if (!extension_loaded('wincache')) { return false; } parent::init($config); return true; } /** * Write data for key into cache * * @param string $key Identifier for the data * @param mixed $value Data to be cached * @return bool True if the data was successfully cached, false on failure */ public function write($key, $value) { $key = $this->_key($key); $duration = $this->_config['duration']; return wincache_ucache_set($key, $value, $duration); } /** * Read a key from the cache * * @param string $key Identifier for the data * @return mixed The cached data, or false if the data doesn't exist, * has expired, or if there was an error fetching it */ public function read($key) { $key = $this->_key($key); return wincache_ucache_get($key); } /** * Increments the value of an integer cached key * * @param string $key Identifier for the data * @param int $offset How much to increment * @return int|false New incremented value, false otherwise */ public function increment($key, $offset = 1) { $key = $this->_key($key); return wincache_ucache_inc($key, $offset); } /** * Decrements the value of an integer cached key * * @param string $key Identifier for the data * @param int $offset How much to subtract * @return int|false New decremented value, false otherwise */ public function decrement($key, $offset = 1) { $key = $this->_key($key); return wincache_ucache_dec($key, $offset); } /** * Delete a key from the cache * * @param string $key Identifier for the data * @return bool True if the value was successfully deleted, false if it didn't exist or couldn't be removed */ public function delete($key) { $key = $this->_key($key); return wincache_ucache_delete($key); } /** * Delete all keys from the cache. This will clear every * item in the cache matching the cache config prefix. * * @param bool $check If true, nothing will be cleared, as entries will * naturally expire in wincache.. * @return bool True Returns true. */ public function clear($check) { if ($check) { return true; } $info = wincache_ucache_info(); $cacheKeys = $info['ucache_entries']; unset($info); foreach ($cacheKeys as $key) { if (strpos($key['key_name'], $this->_config['prefix']) === 0) { wincache_ucache_delete($key['key_name']); } } return true; } /** * Returns the `group value` for each of the configured groups * If the group initial value was not found, then it initializes * the group accordingly. * * @return string[] */ public function groups() { if (empty($this->_compiledGroupNames)) { foreach ($this->_config['groups'] as $group) { $this->_compiledGroupNames[] = $this->_config['prefix'] . $group; } } $groups = wincache_ucache_get($this->_compiledGroupNames); if (count($groups) !== count($this->_config['groups'])) { foreach ($this->_compiledGroupNames as $group) { if (!isset($groups[$group])) { wincache_ucache_set($group, 1); $groups[$group] = 1; } } ksort($groups); } $result = []; $groups = array_values($groups); foreach ($this->_config['groups'] as $i => $group) { $result[] = $group . $groups[$i]; } return $result; } /** * Increments the group value to simulate deletion of all keys under a group * old values will remain in storage until they expire. * * @param string $group The group to clear. * @return bool success */ public function clearGroup($group) { $success = false; wincache_ucache_inc($this->_config['prefix'] . $group, 1, $success); return $success; } }
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