c#.net Tcp socket 接收时数据丢失

       //监听网络

        public bool OpenNet(string sPort)

       {

            processor = new Thread(new ThreadStart(StartListening));//新建监听线程 

            processor.Priority = ThreadPriority.Normal;

            processor.IsBackground = true;

            processor.Start();//线程开始 

            return true;

        }

        private void StartListening()

        {

            //获取端口号

            string sPort = m_IniFile.IniReadValue("Net", "TcpPort");

            int iPort = int.Parse(sPort);

            //

            m_bListen = false;

            //

            try

            {

                m_EndPoint = new IPEndPoint(IPAddress.Any, iPort);//组合将访问主机的IP地址和端口号。 

                _svrSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//实例化Socket对象。 

                _svrSock.Bind(m_EndPoint);//绑定将访问的主机。 

                _svrSock.Listen(50);//开始监听，最大包长50。 



                //while循环接收

                while (true)

                {

                    if (m_bListen == false)

                    {

                        accsock = _svrSock.Accept();//接收客户端的服务请求套接字。

                    }

                    //

                    iDataBufLen = (ushort)accsock.Receive(bDataBuf, bDataBuf.Length, 0);

                    //

                    if (iDataBufLen > 0)

                    {

                        //处理数据

                        //同时m_bListen被置true

                    }

                }

            }

            catch (Exception ex)

            {

                MessageBox.Show("监听异常：" + ex.Message);

                return;

            }

        }