Файл: framework/caching/CWinCache.php
Строк: 179
<?php
/**
* CWinCache class file
*
* @author Alexander Makarov <sam@rmcreative.ru>
* @link http://www.yiiframework.com/
* @copyright 2008-2013 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>
* @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 $key a unique key identifying the cached value
* @return string|boolean the value stored in cache, false if the value is not in the cache or expired.
*/
protected function getValue($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();
}
}