internal void remove(int id) { if (id != key.id) { throw new System.Exception("this is id not match id=" + id + " key.id=" + key.id); } key = null; }
internal InterrupKey ask() { if (key == null) { key = new InterrupKey(); key.go = true; key.id = _currentId++; return(key); } else { key.go = false; return(null); } }