socket 异步接收不到数据问题

danny_2020 2012-07-24 09:16:37

代码如下：
public void CommuniteHelp_TCP()
{
while (true)
{
try
{
MREvent.Reset();
tcpListener.BeginAcceptTcpClient(new AsyncCallback(AsynAccept), tcpListener);
MREvent.WaitOne();

}
catch (Exception ex)
{
System.Diagnostics.Debug.Print("运行方法： CommuniteHelp 发生错误：" + ex.Message);
}

}
}

private void AsynAccept(IAsyncResult mtcplisten)
{
TcpListener mtcpListener = (TcpListener)mtcplisten.AsyncState;
TcpClient mtcpClient = mtcpListener.EndAcceptTcpClient(mtcplisten);
MREvent.Set();
Thread thread_dotcp = new Thread(new ParameterizedThreadStart(ThreadAsynReceiveData));
thread_dotcp.IsBackground = true;
thread_dotcp.Start(mtcpClient);

}
private void ThreadAsynReceiveData(object mobj)
{
TcpClient mtcpClient = mobj as TcpClient;
byte[] receiveBytes = new byte[1024];

mtcpClient.Client.BeginReceive(receiveBytes, 0, 1024, SocketFlags.None, new AsyncCallback (doneAsynAccept), mtcpClient);

}
private void doneAsynAccept(IAsyncResult iar)
{
try
{
lock (lockobj)
{
TcpClient mtcpClient = (TcpClient)iar.AsyncState;
int dataCount = mtcpClient.Client.EndReceive(iar);
if (dataCount > 0)
{
byte[] receiveBytes = new byte[dataCount];
IAsyncResult Result= mtcpClient.Client.BeginReceive(receiveBytes, 0, dataCount, SocketFlags.None, new AsyncCallback(doneAsynAccept), mtcpClient); // 这里接收不到数据，请问为什么？

StructModel.tcpSendTo tcpsendto = new StructModel.tcpSendTo();
tcpsendto.point = ((IPEndPoint)mtcpClient.Client.RemoteEndPoint);
tcpsendto.oreceiveBytes = receiveBytes;
tcpsendto.receiveBytesLength = (ushort)dataCount;
tcpsendto.ns = mtcpClient.GetStream();
tcpsendto.tcpClient = mtcpClient;
DoWork(tcpsendto);
}

//mtcpClient.Close();
//mtcpClient = null;
}
}
catch (Exception ee)
{

ErrorLog.WriteErrorLog("CRTUClient_Udp:CRTUClient", "DoWork", "", ee);
}
finally
{
GC.Collect();
Thread.CurrentThread.Abort();
}

}

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