108 lines
3.7 KiB
PHP
108 lines
3.7 KiB
PHP
<?php
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/**
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* CWinCache class file
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*
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* @author Alexander Makarov <sam@rmcreative.ru>
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* @link http://www.yiiframework.com/
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* @copyright 2008-2013 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CWinCache implements a cache application component based on {@link http://www.iis.net/expand/wincacheforphp WinCache}.
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*
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* To use this application component, the WinCache PHP extension must be loaded.
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*
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* See {@link CCache} manual for common cache operations that are supported by CWinCache.
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*
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* @author Alexander Makarov <sam@rmcreative.ru>
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* @package system.caching
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* @since 1.1.2
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*/
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class CWinCache extends CCache {
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/**
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* Initializes this application component.
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* This method is required by the {@link IApplicationComponent} interface.
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* It checks the availability of WinCache extension and WinCache user cache.
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* @throws CException if WinCache extension is not loaded or user cache is disabled
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*/
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public function init()
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{
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parent::init();
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if(!extension_loaded('wincache'))
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throw new CException(Yii::t('yii', 'CWinCache requires PHP wincache extension to be loaded.'));
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if(!ini_get('wincache.ucenabled'))
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throw new CException(Yii::t('yii', 'CWinCache user cache is disabled. Please set wincache.ucenabled to On in your php.ini.'));
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}
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/**
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* Retrieves a value from cache with a specified key.
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* This is the implementation of the method declared in the parent class.
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* @param string $key a unique key identifying the cached value
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* @return string|boolean the value stored in cache, false if the value is not in the cache or expired.
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*/
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protected function getValue($key)
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{
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return wincache_ucache_get($key);
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}
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/**
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* Retrieves multiple values from cache with the specified keys.
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* @param array $keys a list of keys identifying the cached values
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* @return array a list of cached values indexed by the keys
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*/
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protected function getValues($keys)
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{
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return wincache_ucache_get($keys);
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}
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/**
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* Stores a value identified by a key in cache.
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* This is the implementation of the method declared in the parent class.
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*
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* @param string $key the key identifying the value to be cached
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* @param string $value the value to be cached
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* @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire.
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* @return boolean true if the value is successfully stored into cache, false otherwise
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*/
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protected function setValue($key,$value,$expire)
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{
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return wincache_ucache_set($key,$value,$expire);
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}
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/**
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* Stores a value identified by a key into cache if the cache does not contain this key.
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* This is the implementation of the method declared in the parent class.
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*
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* @param string $key the key identifying the value to be cached
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* @param string $value the value to be cached
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* @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire.
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* @return boolean true if the value is successfully stored into cache, false otherwise
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*/
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protected function addValue($key,$value,$expire)
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{
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return wincache_ucache_add($key,$value,$expire);
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}
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/**
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* Deletes a value with the specified key from cache
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* This is the implementation of the method declared in the parent class.
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* @param string $key the key of the value to be deleted
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* @return boolean if no error happens during deletion
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*/
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protected function deleteValue($key)
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{
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return wincache_ucache_delete($key);
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}
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/**
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* Deletes all values from cache.
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* This is the implementation of the method declared in the parent class.
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* @return boolean whether the flush operation was successful.
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* @since 1.1.5
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*/
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protected function flushValues()
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{
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return wincache_ucache_clear();
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}
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} |