我使用C# TcpClient发送一些数据包，它工作正常，但是Send()是一次接受2 2MByte的数据，所以我的上传进度计数器不能正常工作。

  Console.WriteLine("New transmit pack len={0}", transmit_data.Length);
                                    while ((Transmit_offset < transmit_data.Length) && (client.sock.Poll(0, SelectMode.SelectWrite)))
                                        int sendret = client.sock.Send(transmit_data, Transmit_offset, transmit_data.Length - Transmit_offset, SocketFlags.None);
//#if SocketDebug
                                           Console.WriteLine("Sent " + sendret + " bytes");
//#endif
                                        Transmit_offset += sendret;
                                        BytesOut += sendret;
                                        if (transmit_data.Length > 512)
                                            double progress = ((double)Transmit_offset / (double)transmit_data.Length) * 100;
                                            Console.WriteLine("Upload offset=" + offset + " packetlen="+PacketLen + " progress="+progress);
                                            //Console.WriteLine("Data transfer complete!");
                                            UploadProgress = Convert.ToInt32(progress);
                                           // Console.WriteLine("Up={0}", UploadProgress);
                                            if (progress > 100)
                                    }

我的调试输出如下所示，我已经验证了这个2mb数据包最终到达了另一端，尽管我的本地Tcp客户端声称它是立即以全部有效负载的返回值发送的。

SendBufferSize=8192
New transmit pack len=47
Sent 47 bytes
Connected
Sending file Server v1.56.exe....
New transmit pack len=79
Sent 79 bytes
New transmit pack len=2222367
Sent 2222367 bytes
Upload offset=0 packetlen=11504 progress=100