public function actionStatus()
    {
        $pid = $this->getMasterPid();
        Console::stdout("beyod($pid) is running ...\r\n");
        Console::stdout("php ini: ".php_ini_loaded_file()."\r\n");
        Console::stdout("php version: ".phpversion()."\r\n");
        Console::stdout("necessary extensions status:\r\n");
        foreach(['pcntl', 'event', 'posix'] as $ext){
            Console::stdout("\t$ext: \t". (extension_loaded($ext) ? 'yes':'no')."\r\n");
        }
    }