协议缓冲区、C#和网络流:永远不会收到消息

我正试图在一段时间内使用协议缓冲区 NetworkStream 但这些信息从未被完全接收。

这是我的服务器:

var listener = new TcpListener(System.Net.IPAddress.Any, 4989);
listener.Start();

while (true)
{
    var client = listener.AcceptTcpClient();
    Task.Factory.StartNew(() =>
    {
        var message = ServerMessage.Parser.ParseFrom(client.GetStream());
        Console.WriteLine(message);
    });
}

这是我的客户:

Thread.Sleep(2000);//Wait for server to start

var client = new TcpClient();
client.Connect("localhost", 4989);

while (true)
{
    var message = new ServerMessage
    {
        Time = (ulong)DateTime.UtcNow.Ticks,
        Type = MessageType.Content
    };
    message.WriteTo(client.GetStream());

    Thread.Sleep(1000);
}

这里提供完整的复制解决方案: https://github.com/IanPNewson/ProtobufNetworkStreamIssue

怎么了?