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Diffstat (limited to 'framework/caching/CWinCache.php')
| -rw-r--r-- | framework/caching/CWinCache.php | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/framework/caching/CWinCache.php b/framework/caching/CWinCache.php new file mode 100644 index 0000000..82b0acf --- /dev/null +++ b/framework/caching/CWinCache.php @@ -0,0 +1,109 @@ +<?php +/** + * CWinCache class file + * + * @author Alexander Makarov <sam@rmcreative.ru> + * @link http://www.yiiframework.com/ + * @copyright Copyright © 2008-2011 Yii Software LLC + * @license http://www.yiiframework.com/license/ + */ + +/** + * CWinCache implements a cache application component based on {@link http://www.iis.net/expand/wincacheforphp WinCache}. + * + * To use this application component, the WinCache PHP extension must be loaded. + * + * See {@link CCache} manual for common cache operations that are supported by CWinCache. + * + * @author Alexander Makarov <sam@rmcreative.ru> + * @version $Id: CWinCache.php 2799 2011-01-01 19:31:13Z qiang.xue $ + * @package system.caching + * @since 1.1.2 + */ +class CWinCache extends CCache { + /** + * Initializes this application component. + * This method is required by the {@link IApplicationComponent} interface. + * It checks the availability of WinCache extension and WinCache user cache. + * @throws CException if WinCache extension is not loaded or user cache is disabled + */ + public function init() + { + parent::init(); + if(!extension_loaded('wincache')) + throw new CException(Yii::t('yii', 'CWinCache requires PHP wincache extension to be loaded.')); + if(!ini_get('wincache.ucenabled')) + throw new CException(Yii::t('yii', 'CWinCache user cache is disabled. Please set wincache.ucenabled to On in your php.ini.')); + } + + /** + * Retrieves a value from cache with a specified key. + * This is the implementation of the method declared in the parent class. + * @param string $key a unique key identifying the cached value + * @return string the value stored in cache, false if the value is not in the cache or expired. + */ + protected function getValue($key) + { + return wincache_ucache_get($key); + } + + /** + * Retrieves multiple values from cache with the specified keys. + * @param array $keys a list of keys identifying the cached values + * @return array a list of cached values indexed by the keys + */ + protected function getValues($keys) + { + return wincache_ucache_get($keys); + } + + /** + * Stores a value identified by a key in cache. + * This is the implementation of the method declared in the parent class. + * + * @param string $key the key identifying the value to be cached + * @param string $value the value to be cached + * @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire. + * @return boolean true if the value is successfully stored into cache, false otherwise + */ + protected function setValue($key,$value,$expire) + { + return wincache_ucache_set($key,$value,$expire); + } + + /** + * Stores a value identified by a key into cache if the cache does not contain this key. + * This is the implementation of the method declared in the parent class. + * + * @param string $key the key identifying the value to be cached + * @param string $value the value to be cached + * @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire. + * @return boolean true if the value is successfully stored into cache, false otherwise + */ + protected function addValue($key,$value,$expire) + { + return wincache_ucache_add($key,$value,$expire); + } + + /** + * Deletes a value with the specified key from cache + * This is the implementation of the method declared in the parent class. + * @param string $key the key of the value to be deleted + * @return boolean if no error happens during deletion + */ + protected function deleteValue($key) + { + return wincache_ucache_delete($key); + } + + /** + * Deletes all values from cache. + * This is the implementation of the method declared in the parent class. + * @return boolean whether the flush operation was successful. + * @since 1.1.5 + */ + protected function flushValues() + { + return wincache_ucache_clear(); + } +}
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