msg_rsp = new BusMessage(msg_req->get_type(&err_flg));
_listener->request_received(msg_req, msg_rsp);
seq = (DataItemSequence *)msg_rsp->_dataItemSeq;
msg_rsp = new BusMessage(msg_req->get_type(&err_flg));
_listener->request_received(msg_req, msg_rsp);
seq = (DataItemSequence *)msg_rsp->_dataItemSeq;