-void gras_msg_recv(gras_socket_t sock,
- gras_msgtype_t *msgtype,
- void **payload,
- int *payload_size);
+/* 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,
+ unsigned long int ID,
+ gras_msgtype_t msgtype, void *payload);
+
+/* The thread in charge of receiving messages and queuing them */
+typedef struct s_gras_msg_listener_ *gras_msg_listener_t;
+gras_msg_listener_t gras_msg_listener_launch(xbt_queue_t msg_exchange);
+/* The caller has the responsability to cleanup the queues himself */
+void gras_msg_listener_shutdown(void);