extern void afb_ws_destroy(struct afb_ws *ws);
extern void afb_ws_hangup(struct afb_ws *ws);
extern int afb_ws_is_connected(struct afb_ws *ws);
extern void afb_ws_destroy(struct afb_ws *ws);
extern void afb_ws_hangup(struct afb_ws *ws);
extern int afb_ws_is_connected(struct afb_ws *ws);