int seat_stop(Seat *s, bool force);
int seat_stop_sessions(Seat *s, bool force);
-bool seat_check_gc(Seat *s, bool drop_not_started);
+bool seat_may_gc(Seat *s, bool drop_not_started);
void seat_add_to_gc_queue(Seat *s);
bool seat_name_is_valid(const char *name);