extern int afb_session_init(int max_session_count, int timeout, const char *initok);
extern void afb_session_purge();
extern const char *afb_session_initial_token();
extern int afb_session_init(int max_session_count, int timeout, const char *initok);
extern void afb_session_purge();
extern const char *afb_session_initial_token();