int seat_get_idle_hint(Seat *s, dual_timestamp *t);
int seat_start(Seat *s);
-int seat_stop(Seat *s);
-int seat_stop_sessions(Seat *s);
+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);
void seat_add_to_gc_queue(Seat *s);