void machine_free(Machine *m);
int machine_check_gc(Machine *m, bool drop_not_started);
void machine_add_to_gc_queue(Machine *m);
-int machine_start(Machine *m);
+int machine_start(Machine *m, DBusMessageIter *iter);
int machine_stop(Machine *m);
int machine_save(Machine *m);
int machine_load(Machine *m);