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(gras_msg_listener_t);
+void gras_msg_listener_shutdown(void);
/**
* gras_cblist_t: