插座ReceiveTimeout [英] Socket ReceiveTimeout

问题描述

我已指定 ReceiveTimout 40毫秒。但是这需要500ms以上为接收超时。我用秒表来计算timetaken。

中的代码如下所示：

 插座的TCPSocket =新的Socket（AddressFamily.InterNetwork，SocketType.Stream，
 ProtocolType.Tcp）; 
 TCPSocket.ReceiveTimeout = 40; 
 
试
 {
 TCPSocket.Receive（缓冲）; 
 
}赶上（SocketException五）{} 
  

解决方案

您可以同步查询与你希望的任何超时插座上。如果民意测验（）收益真正，你可以肯定，你可以对通话接收（），将不会阻止

 插座S。 
 // ... 
 //投票的插座接待了10毫秒超时。 
如果（s.Poll（10000，SelectMode.SelectRead））
 {
 s.Receive（）; //此调用不会阻塞
} 
，否则
 {
 //超时
} 
  

我建议你阅读非阻塞插座使用Stevens的UNIX网络编程第6和第16进行更深入的信息。虽然这本书在其名称中具有UNIX，整体插座架构本质上是在UNIX和Windows（和.net）

相同

I have specified the ReceiveTimout as 40 ms. But it takes more than 500ms for the receive to timeout. I am using a Stopwatch to compute the timetaken.

The code is shown below.

Socket TCPSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream,
                              ProtocolType.Tcp);
TCPSocket.ReceiveTimeout = 40;

try
{  
    TCPSocket.Receive(Buffer);  

}  catch(SocketException e)  {  }

解决方案

You can synchronously poll on the socket with any timeout you wish. If Poll() returns true, you can be certain that you can make a call to Receive() that won't block.

Socket s;
// ...
// Poll the socket for reception with a 10 ms timeout.
if (s.Poll(10000, SelectMode.SelectRead))
{
    s.Receive(); // This call will not block
}
else
{
    // Timed out
}

I recommend you read Stevens' UNIX Network Programming chapters 6 and 16 for more in-depth information on non-blocking socket usage. Even though the book has UNIX in its name, the overall sockets architecture is essentially the same in UNIX and Windows (and .net)

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