Question

我与TcpClient的{{1}}相关联。现在，Thread的连接在线程中正确打开，但是TcpClient的关闭并且线程没有正确发生。我不知道为什么。

这是我开始的主题：

TcpClient

这是private System.Threading.Thread _thread; private ManualResetEvent _shutdownEvent = new ManualResetEvent(false); _thread = new Thread(DoWork); _thread.Start();连接：

TcpClient

现在这里是关闭并重新启动线程的代码private void DoWork() { while (!_shutdownEvent.WaitOne(0)) { try { client = new TcpClient(); client.Connect(new IPEndPoint(IPAddress.Parse(ip),intport)); //Say thread to sleep for 1 secs. Thread.Sleep(1000); } catch (Exception ex) { // Log the error here. client.Close(); continue; } try { using (stream = client.GetStream()) { byte[] notify = Encoding.ASCII.GetBytes("Hello"); stream.Write(notify, 0, notify.Length); byte[] data = new byte[1024]; while (!_shutdownEvent.WaitOne(0)) { int numBytesRead = stream.Read(data, 0, data.Length); if (numBytesRead > 0) { line= Encoding.ASCII.GetString(data, 0, numBytesRead); } } ...：

TcpClient

请帮我停止并正确启动帖子_shutdownEvent.WaitOne(0); _thread.Abort(); //Start Again _thread = new Thread(DoWork); _thread.Start();。感谢。

Answer 1

将_shutdownEvent声明为AutoResetEvent。

AutoResetEvent _shutdownEvent = new AutoResetEvent(false);

删除Dowork方法中的外部while循环

private void DoWork()
    {
        try
        {
            client = new TcpClient();
            client.Connect(new IPEndPoint(IPAddress.Parse(ip), intport));
            //Say thread to sleep for 1 secs.
            Thread.Sleep(1000);
        }
        catch (Exception ex)
        {
            // Log the error here.
            client.Close();
            return;
        }
        try
        {
            using (stream = client.GetStream())
            {
                byte[] notify = Encoding.ASCII.GetBytes("Hello");
                stream.Write(notify, 0, notify.Length);

                byte[] data = new byte[1024];
                while (!_shutdownEvent.WaitOne(0))
                {
                    int numBytesRead = stream.Read(data, 0, data.Length);
                    if (numBytesRead > 0)
                    {
                        line = Encoding.ASCII.GetString(data, 0, numBytesRead);
                    }
                }
            }
        }
        catch
        {
        }
        finally
        {
            if (stream != null)
                stream.Close();
            if (client != null)
                client.Close();
        }        
    }

使用_shutdownEvent.Set()表示事件。

_shutdownEvent.Set(); //Set, not Wait
//_thread.Abort(); //and you don't have to abort the thread since it will end gracefully after it break out of the while loop
while (_thread.IsAlive) ; //wait until the first thread exit

//Start Again
_thread = new Thread(DoWork);
_thread.Start();

如何正确关闭在线程中打开的TcpClient

1 个答案: