def _send_control_data(self, data):
        if self._control_client_addr:
            try:
                self._control_socket.sendto(data, self._control_client_addr)
            except (socket.error, OSError, __HOLE__) as e:
                error_no = eventloop.errno_from_exception(e)
                if error_no in (errno.EAGAIN, errno.EINPROGRESS,
                                errno.EWOULDBLOCK):
                    return
                else:
                    shell.print_exception(e)
                    if self._config['verbose']:
                        traceback.print_exc()
dataset/ETHPy150Open ziggear/shadowsocks/shadowsocks/manager.py/Manager._send_control_data