public static WebResponse GetResponseNoEx(this WebRequest req)
{
WebResponse result = null;
ManualResetEvent responseReady = new ManualResetEvent(false);
AsyncCallback callback = new AsyncCallback(ar =>
{
//var request = (WebRequest)ar.AsyncState;
result = req.EndGetResponseNoEx(ar);
responseReady.Set();
});
var async = req.BeginGetResponse(callback, null);
if (!async.IsCompleted)
{
//async.AsyncWaitHandle.WaitOne();
// Not having thread affinity seems to work better with ManualResetEvent
// Using AsyncWaitHandle.WaitOne() gave unpredictable results (in the
// unit tests), when EndGetResponse would return null without any error
// thrown
responseReady.WaitOne();
//async.AsyncWaitHandle.WaitOne();
}
return(result);
}
public static WebResponse GetResponseNoEx(this WebRequest req)
{
WebResponse result = null;
ManualResetEvent responseReady = new ManualResetEvent(initialState: false);
Exception caught = null;
AsyncCallback callback = new AsyncCallback(ar =>
{
//var request = (WebRequest)ar.AsyncState;
try
{
result = req.EndGetResponseNoEx(ar);
}
catch (Exception ex)
{
caught = ex;
}
finally
{
responseReady.Set();
}
});
var async = req.BeginGetResponse(callback, null);
if (!async.IsCompleted)
{
#if !PORTABLE45
ThreadPool.RegisterWaitForSingleObject(async.AsyncWaitHandle, new WaitOrTimerCallback(TimeoutCallback), req, req.Timeout, true);
#endif
//async.AsyncWaitHandle.WaitOne();
// Not having thread affinity seems to work better with ManualResetEvent
// Using AsyncWaitHandle.WaitOne() gave unpredictable results (in the
// unit tests), when EndGetResponse would return null without any error
// thrown
responseReady.WaitOne();
//async.AsyncWaitHandle.WaitOne();
}
if (caught != null)
{
throw caught;
}
return(result);
}
