MESSAGE_DEF(UDP_INIT, MESSAGE_PRIORITY_MED, udp_init_t, udp_init) MESSAGE_DEF(UDP_DATA_REQ, MESSAGE_PRIORITY_MED, udp_data_req_t, udp_data_req) MESSAGE_DEF(UDP_DATA_IND, MESSAGE_PRIORITY_MED, udp_data_ind_t, udp_data_ind)