+ /* get a free socket for the receiving part of the listener, taking care that it does not get saved as "myport" number */
+ my_port = ((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport;
+ arg->wakeup_sock_listener_side=gras_socket_server_range(5000,6000,-1,0);
+ ((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport = my_port;
+ /* Connect the other part of the socket */
+ arg->wakeup_sock_master_side=gras_socket_client(gras_os_myname(),gras_socket_my_port(arg->wakeup_sock_listener_side));
+
+ /* declare the message used to awake the listener from the master */
+ gras_msgtype_declare("_wakeup_listener",gras_datadesc_by_name("char"));
+
+ /* actually start the thread */
+ arg->listener = xbt_thread_create("listener",listener_function,arg);
+ gras_os_sleep(0); /* TODO: useless? give the listener a chance to initialize even if the main is empty and we cancel it right afterward */