protected function _checkSocketReadTimeout()
    {
        if ($this->socket) {
            $info = stream_get_meta_data($this->socket);
            $timedout = $info['timed_out'];
            if ($timedout) {
                $this->close();

                throw new Zend_Http_Client_Adapter_Exception(
                    "Read timed out after {$this->config['timeout']} seconds",
                    Zend_Http_Client_Adapter_Exception::READ_TIMEOUT
                );
            }
        }
    }