All, I am trying to cancel two concurrent HttpWebRequests using a method similar to the code below (shown in pseudo-ish C#).
The Main method creates two threads which create HttpWebRequests. If the user wishes to, they may abort the requests by clicking a button which then calls the Abort method.
private Thread first;
private Thread second;
private string uri = "http://somewhere";
public void Main()
{
first = new Thread(GetFirst);
first.Start();
second = new Thread(GetSecond);
second.Start();
// Some block on threads... like the Countdown class
countdown.Wait();
}
public void Abort()
{
try
{
first.Abort();
}
catch { // do nothing }
try
{
second.Abort();
}
catch { // do nothing }
}
private void GetFirst(object state)
{
MyHandler h = new MyHandler(uri);
h.RunRequest();
}
private void GetSecond(object state)
{
MyHandler h = new MyHandler(uri);
h.RunRequest();
}
The first thread gets interrupted by a SocketException:
A blocking operation was interrupted by a call to WSACancelBlockingCall
The second thread hangs on GetResponse().
How can I abort both of these requests in a way that the web server knows that the connection has been aborted?, and/or, Is there a better way to do this?
UPDATE
As suggested, a good alternative would be to use BeginGetResponse. However, I don't have access to the HttpWebRequest object - it is abstracted in the MyHandler
class. I have modified the question to show this.
public class MyHandler
{
public void RunRequest(string uri)
{
HttpWebRequest req = HttpWebRequest.Create(uri);
HttpWebResponse res = req.GetResponse();
}
}
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