的System.Net.Sockets - 定义超时？ （C＃）

Question

是否有可能设置超时如下？：

try 
    { 
     System.Net.Sockets.Socket sock = new System.Net.Sockets.Socket(System.Net.Sockets.AddressFamily.InterNetwork, System.Net.Sockets.SocketType.Stream, System.Net.Sockets.ProtocolType.Tcp); 
     sock.Connect(ipa, portno1); 
     if (sock.Connected == true) // Port is in use and connection is successful 
     { 
      displayGreen1(); 
     } 
     sock.Close(); 

    } 

Answer 1

看起来这可能是你在找什么：http://www.codeproject.com/KB/IP/TimeOutSocket.aspx。

看来，他的使用

ManualResetEvent.WaitOne() 

来阻塞超时的持续时间的主线程。如果

IsConnectionSuccessful 

如果时间用完，将会抛出异常（即连接未及时完成或callBack失败）。

Answer 2

使用代码的代码here

Socket socket = new Socket(
    AddressFamily.InterNetwork, 
    SocketType.Stream, 
    ProtocolType.Tcp); 

// Connect using a timeout (5 seconds) 
IAsyncResult result = socket.BeginConnect(sIP, iPort, null, null); 
bool success = result.AsyncWaitHandle.WaitOne(5000, true); 
if (!_socket.Connected) 
{ 
    // NOTE, MUST CLOSE THE SOCKET 
    socket.Close(); 
    throw new ApplicationException("Failed to connect server."); 
} 

Answer 3

FYI采取论证进行端口查找时...

Socket tcpSocket; 

// Set the receive buffer size to 8k 
tcpSocket.ReceiveBufferSize = 8192; 

// Set the timeout for synchronous receive methods to 
// 1 second (1000 milliseconds.) 
tcpSocket.ReceiveTimeout = 1000; 

// Set the send buffer size to 8k. 
tcpSocket.SendBufferSize = 8192; 

// Set the timeout for synchronous send methods 
// to 1 second (1000 milliseconds.)    
tcpSocket.SendTimeout = 1000;