public override WebResponse EndGetResponse(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException("asyncResult");
}
if (!asyncResult.IsCompleted)
{
asyncResult.AsyncWaitHandle.WaitOne();
}
AsyncResult async = (AsyncResult)asyncResult;
GetResponseCallback cb = (GetResponseCallback)async.AsyncDelegate;
#if SSHARP
FileWebResponse webResponse = (FileWebResponse)cb.EndInvokeEx(asyncResult);
#else
FileWebResponse webResponse = (FileWebResponse)cb.EndInvoke(asyncResult);
#endif
asyncResponding = false;
if (webResponse.HasError)
{
throw webResponse.Error;
}
return(webResponse);
}
public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
lock (this) {
if (asyncResponding)
{
throw new InvalidOperationException("Cannot re-call start of asynchronous method while a previous call is still in progress.");
}
asyncResponding = true;
}
GetResponseCallback c = new GetResponseCallback(this.GetResponseInternal);
return(c.BeginInvoke(callback, state));
}
/// <summary>Ends an asynchronous request for a file system resource.</summary>
/// <returns>A <see cref="T:System.Net.WebResponse" /> that contains the response from the file system resource.</returns>
/// <param name="asyncResult">An <see cref="T:System.IAsyncResult" /> that references the pending request for a response. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="asyncResult" /> is null. </exception>
public override WebResponse EndGetResponse(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException("asyncResult");
}
if (!asyncResult.IsCompleted)
{
asyncResult.AsyncWaitHandle.WaitOne();
}
AsyncResult asyncResult2 = (AsyncResult)asyncResult;
GetResponseCallback getResponseCallback = (GetResponseCallback)asyncResult2.AsyncDelegate;
WebResponse result = getResponseCallback.EndInvoke(asyncResult);
asyncResponding = false;
return(result);
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
lock (this) {
if (asyncResponding)
throw new InvalidOperationException ("Cannot re-call start of asynchronous method while a previous call is still in progress.");
asyncResponding = true;
}
GetResponseCallback c = new GetResponseCallback (this.GetResponseInternal);
return c.BeginInvoke (callback, state);
}
