extern int afb_session_check_token(struct afb_session *session, const char *token);
extern void afb_session_new_token(struct afb_session *session);
extern const char *afb_session_token(struct afb_session *session);
+extern int afb_session_timeout(struct afb_session *session);
+extern int afb_session_what_remains(struct afb_session *session);
extern void *afb_session_get_cookie(struct afb_session *session, const void *key);
extern void *afb_session_cookie(struct afb_session *session, const void *key, void *(*makecb)(void *closure), void (*freecb)(void *item), void *closure, int replace);