有关异步监听的问题
我做了一个服务器异步监听、异步读取数据的程序,主要代码如下:TcpListener^ RemotePM;
static ManualResetEvent ^TcpClientConnected=gcnew ManualResetEvent(false);
static int numberOfBytesRead=0;
RemotePM=gcnew TcpListener(IPAddress::Any,7010);
RemotePM->Start();
RemotePM->BeginAcceptTcpClient(gcnew AsyncCallback(DoAcceptTcpClientCallback),RemotePM);
static void DoAcceptTcpClientCallback(IAsyncResult^ result)
{
TcpClientConnected->Reset();
// Get the listener that handles the client request.
TcpListener^ listener = (TcpListener^) result->AsyncState;
TcpClient ^client = listener->EndAcceptTcpClient(result);
client->ReceiveBufferSize=2048;
client->GetStream()->BeginRead( myReadBuffer, 0, myReadBuffer->Length,
gcnew AsyncCallback( myReadCallBack ), client->GetStream());
TcpClientConnected->WaitOne();
listener->BeginAcceptTcpClient(gcnew AsyncCallback(DoAcceptTcpClientCallback),listener);
}
static void myReadCallBack( IAsyncResult^ ar )
{
NetworkStream^ myNetworkStream = safe_cast<NetworkStream^>(ar->AsyncState);
numberOfBytesRead += myNetworkStream->EndRead( ar );
while ( myNetworkStream->DataAvailable )
myNetworkStream->BeginRead( myReadBuffer, numberOfBytesRead, myReadBuffer->Length- numberOfBytesRead, gcnew AsyncCallback( myReadCallBack ), myNetworkStream );
TcpClientConnected->Set();
}
现在的问题是这个过程只能收到1个包,收完第一个包以后就再也没反应,myReadCallBack也再没进去。这究竟是何缘故?请高手指教。
[ 本帖最后由 dlyltm 于 2011-7-29 10:08 编辑 ]