我正在编写一个c#tcp套接字服务器,它将从c ++套接字应用程序接收数据。现在一切正常,除了我的c#接收线程中的循环中断逻辑。我在下面展示了一个代码片段,以便更好地解释。
//creating socket object
private Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//accepting connections
TcpListener tcpListener = new TcpListener(ipAdd, iPort);
tcpListener.Start();
this.socket = tcpListener.AcceptSocket();
tcpListener.Stop();
//code for
//public byte[] ReceiveMessage(ref int intError)
while (this.socket.Available > 0)
{
try
{
intBytesReceived = this.socket.Receive(byteReceivedBuffer, byteReceivedBuffer.Length, SocketFlags.None);
Thread.Sleep(100);
}
catch (SocketException ex)
{
string str = ex.Message;
intError = -1;
}
}
以下是连续接收数据的线程函数
//Thread to continuous poll data from client
//Now this has been done as I need to receive multiple messages from client after server ack received at client side.
//Thread quit logic based on manual stop button press
//I want to have one more logic by which thread will exit if the connection closed by client socket. i.e. a call of 'CloseSocket()' function from c++ application.
if (TCPServerListener.serverStatus == TCPServerListener.ServerStatus.Stopped)
{
tcpCommunication.Disconnect();
break;
}
while(true)
{
int sockError = 0;
byte[] byteData = tcpCommunication.ReceiveMessage(ref sockError);
if (byteData.Length > 0)
{
ParseBuffer(byteData, ref tcpCommunication);
}
}
为了更好的图片,我正在低于我的通信协议。
我能够完成我的工作,但服务器接收器线程没有关闭。那是我的问题。任何建议都将是一个很大的帮助。
答案 0 :(得分:0)
根据我的经验,当您使用TCP服务器/客户端套接字关系时,TCP服务器套接字端将位于由标志控制的线程中,以便继续监听,直到被告知停止(您的评论提到停止按钮) )。
客户端运行直到完成所有数据,或者控制服务器端的相同标志被触发。
当客户端连接时,我会将AcceptSocket存储到列表中。当我这样做时,我有一个自定义类,它接受AcceptSocket和自定义类具有计数器,用于向该客户端发送/接收多少消息或字节。
// This should be a threaded method if you're using a button to stop
private void StartTcpListener()
{
List<ClientClass> clientClassList = new List<ClientClass>();
TcpListener tcpListener = new TcpListener(ipAdd, iPort);
tcpListener.Start();
while (keepListening)
{
Socket socket = tcpListener.AcceptSocket();
// Create a client object and store it in a list
ClientClass clientClass = new ClientClass(socket);
clientClassList.Add(clientClass);
// This method would start a thread to read data from the accept socket while it was connected.
clientClass.Start();
}
foreach (ClientClass client in clientClassList)
{
// This method would stop the thread that reads data from the accept socket and close the accept socket
client.Stop();
}
tcpListener.Stop();
}
对于客户端,当从客户端接受套接字读取时,这将是线程控制的,并且线程被中止或客户端关闭它的结束,导致读取为读取的字节数返回-1。
// Threaded method
private void Receive()
{
// Don't know how much of a buffer you need
byte[] dataIn = byte[1000];
while (acceptSocket.Connected)
{
// Exception handling so you either end the thread or keep processing data
try
{
int bytesRead = acceptSocket.Read(dataIn);
if (bytesRead != -1)
{
// Process your data
}
else
{
// -1 Bytes read should indicate the client shutdown on their end
break;
}
}
catch(SocketException se)
{
// You could exit this loop depending on the SocketException
}
catch(ThreadAbortException tae)
{
// Exit the loop
}
catch (Exception e)
{
// Handle exception, but keep reading for data
}
}
// You have to check in case the socket was disposed or was never successfully created
if (acceptSocket != null)
{
acceptSocket.Close();
}
}
// This is the stop method if you press your stop button
private void Stop()
{
// Aborts your read thread and the socket should be closed in the read thread. The read thread should have a ThreadState.Stopped if the while loop was gracefully ended and the socket has already been closed
if (readThread != null && readThread.ThreadState != ThreadState.Stopped)
{
readThread.Abort();
}
}
我认为这是我之前所做过的基础知识。我确定有更清洁的&#34;现在这样做的方法。这是多年前我用来实现TCP客户端/服务器套接字对象的时候。
希望这会有所帮助......