c# - Invoke 流不支持读取

Question

我有一个 c# 网络应用程序，其中有很多匿名用户连接到(游戏服务)。

现在我检查日志，偶尔会看到这个异常:

[10:30:18.21352] System.Int32 Read(Byte[], Int32, Int32): The stream does not support reading.
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at BusinessLayer.Listener.ListenerWorker.ProcessClient(Object obj) in File.cs:line 141

此错误来自 NetworkStream 对象，现在我正在尝试重现该问题，但如何重现？我怎样才能得到这个异常(exception)？

我尝试断开自己的连接，但这只是超时，尝试了其他方法，但无法正常工作。

也许有人有想法？

文件内容为:

private static void ProcessClient(
    Object obj)
{
    ISession session = (ISession)obj;
    NetworkStream networkStream = null;

    try
    {
        DebugUtility.SetThreadName("Worker: {0}", session.Name);
        networkStream = session.TcpClient.GetStream();
        networkStream.ReadTimeout = Config.ReadTimeout;

        // Loop received packets (blocks untill next packet)
        Int32 packetSize;
        Byte[] buffer = new Byte[session.PacketSize];
        while ((packetSize = networkStream.Read(buffer, 0, buffer.Length)) != 0)
        {
            // Get String from packet  bytes
            String packet = Encoding.UTF8.GetString(buffer, 0, packetSize);

            // Check if packet has data
            if (String.IsNullOrEmpty(packet))
                continue;

            // Log biggest received package
            DebugUtility.CheckMaxPacketSize(session.Name, packet.Length);

            // Handle packet (in new thread)
            Logger.DebugLog("Received: {0}", packet);
            ThreadPool.QueueUserWorkItem(session.HandlePacket, packet);
        }
    }
    catch (Exception ex)
    {
        Logger.LogException(ex);
    }
    finally
    {
        if (networkStream != null)
            networkStream.Close();

        if (session != null)
            session.Disconnect();
    }
}

Answer 1

你在传递什么参数

System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)

方法。您是否正在使用 任何 NetworkStream.Length 或 NetworkStream.Position 属性。

也就是说(不完全是)

System.Net.Sockets.NetworkStream.Read(buffer, stream.Position, stream.Length)

然后如 MSDN 文档中所述使用 NetworkStream.Length和 NetworkStream.Position属性将始终抛出一个NotSupportedException，因为它当前不受支持。