/* functions to extract msg from socket or put it on wire (depend RL vs SG) */
+gras_msg_t gras_msg_recv_any(void); /* Get first message arriving */
void gras_msg_recv(gras_socket_t sock, gras_msg_t msg /*OUT*/);
void gras_msg_send_ext(gras_socket_t sock,
e_gras_msg_kind_t kind,