对于我的网络化java应用程序，我在系统级datagramsocket上编写了一个线程安全、无阻塞的i/o Package 器。但是，我有点困惑。如果一个新的包进来了怎么办 callback.onDataReceived() 正在执行？包掉了吗？它是否被添加到操作系统级队列中，并在循环的下一次迭代中被“接收”？如果是，那么队列是否有最大大小？

/*
     * Receiving thread
     */
    rxThread = new Thread(new Runnable()
    {
        @Override
        public void run()
        {
            byte[] incomingBuffer = new byte[DataConstants.NUM_BYTES_IN_DATAGRAM_PACKET_BUF];

            while (!Thread.currentThread().isInterrupted())
            {
                DatagramPacket incomingPacket = new DatagramPacket(incomingBuffer, incomingBuffer.length);
                try
                {
                    basicSocket.receive(incomingPacket);

                    callback.onDataReceived(
                            DatatypeUtil.getNBytes(incomingPacket.getData(), incomingPacket.getLength()),
                            incomingPacket.getAddress());
                }
                catch (IOException e)
                {
                    e.printStackTrace();
                }
            }
        }
    });