*msg_rsp_param = new BusMessage(MSG_ID_HELLO);
double dbl = (double)1.0;
(*msg_rsp_param)->add_double_parameter("rsp_param_double", dbl);
*msg_rsp_param = new BusMessage(MSG_ID_HELLO);
double dbl = (double)1.0;
(*msg_rsp_param)->add_double_parameter("rsp_param_double", dbl);