protected function _routerCall() : bool {
        $status = $this->connection->getStatus();
        if ($status === TcpConnection::STATUS_CLOSING || $status === TcpConnection::STATUS_CLOSED)
            return false;
        return parent::_routerCall();
    }
protected function _routerCall() : bool {
        $status = $this->connection->getStatus();
        if ($status === TcpConnection::STATUS_CLOSING || $status === TcpConnection::STATUS_CLOSED)
            return false;
        return parent::_routerCall();
    }
{@inheritdoc}