// +---------------------------------------------------------------------- // $Id: CacheXcache.class.php 2728 2012-02-12 04:12:51Z liu21st $ /** +---------------------------- * Xcache缓存驱动类 +---------------------------- */ class CacheXcache extends Cache { /** +---------------------------------------------------------- * 架构函数 +---------------------------------------------------------- * @access public +---------------------------------------------------------- */ public function __construct($options='') { if ( !function_exists('xcache_info') ) { throw_exception(L('_NOT_SUPPERT_').':Xcache'); } if(!empty($options)) { $this->options = $options; } $this->options['expire'] = isset($options['expire'])?$options['expire']:C('DATA_CACHE_TIME'); $this->options['length'] = isset($options['length'])?$options['length']:0; } /** +---------------------------------------------------------- * 读取缓存 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param string $name 缓存变量名 +---------------------------------------------------------- * @return mixed +---------------------------------------------------------- */ public function get($name) { N('cache_read',1); if (xcache_isset($name)) { return xcache_get($name); } return false; } /** +---------------------------------------------------------- * 写入缓存 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param string $name 缓存变量名 * @param mixed $value 存储数据 * @param integer $expire 有效时间（秒） +---------------------------------------------------------- * @return boolen +---------------------------------------------------------- */ public function set($name, $value,$expire=null) { N('cache_write',1); if(is_null($expire)) { $expire = $this->options['expire'] ; } if(xcache_set($name, $value, $expire)) { if($this->options['length']>0) { // 记录缓存队列 $this->queue($name); } return true; } return false; } /** +---------------------------------------------------------- * 删除缓存 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param string $name 缓存变量名 +---------------------------------------------------------- * @return boolen +---------------------------------------------------------- */ public function rm($name) { return xcache_unset($name); } }