我可以在C＃中为UdpClient设置超时吗？ [英] Can I set the timeout for UdpClient in C#?

问题描述

我想知道是否可以为UdpClient的接收方法设置超时值。

I am wondering whether I can set a timeout value for UdpClient receive method.

我想使用块模式，但是因为有时udp会丢失数据包，所以我的程序

I want to use block mode, but because sometimes udp will lost packet, my program udpClient.receive will hang there forever.

我该如何管理它的任何好主意？

any good ideas how I can manage that?

推荐答案

Filip所指的内容嵌套在 UdpClient 所包含的套接字内（ UdpClient.Client.ReceiveTimeout ）。

What Filip is referring to is nested within the socket that UdpClient contains (UdpClient.Client.ReceiveTimeout).

您也可以使用异步方法来执行此操作，但要手动阻止执行：

You can also use the async methods to do this, but manually block execution:

var timeToWait = TimeSpan.FromSeconds(10);

var udpClient = new UdpClient( portNumber );
var asyncResult = udpClient.BeginReceive( null, null );
asyncResult.AsyncWaitHandle.WaitOne( timeToWait );
if (asyncResult.IsCompleted)
{
    try
    {
        IPEndPoint remoteEP = null;
        byte[] receivedData = udpClient.EndReceive( asyncResult, ref remoteEP );
        // EndReceive worked and we have received data and remote endpoint
    }
    catch (Exception ex)
    {
        // EndReceive failed and we ended up here
    }
} 
else
{
    // The operation wasn't completed before the timeout and we're off the hook
}

这篇关于我可以在C＃中为UdpClient设置超时吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！