protected volatile int state = 0;

    protected String name = "Transport" + id++;
    private volatile Thread thread;
    private volatile TransportException te;

    protected final Object inLock = new Object();
    protected final Object outLock = new Object();

    protected final Map<Long, Response> response_map = new ConcurrentHashMap<>(10);
    private final AtomicLong usageCount = new AtomicLong(1);


    /**