public override WebResponse EndGetResponse(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException("AsyncResult cannot be null!");
}
if (!(asyncResult is FtpAsyncResult) || asyncResult != this.asyncResult)
{
throw new ArgumentException("AsyncResult is from another request!");
}
FtpAsyncResult asyncFtpResult = (FtpAsyncResult)asyncResult;
if (!asyncFtpResult.WaitUntilComplete(timeout, false))
{
Abort();
throw new WebException("Transfer timed out.", WebExceptionStatus.Timeout);
}
CheckIfAborted();
asyncResult = null;
if (asyncFtpResult.GotException)
{
throw asyncFtpResult.Exception;
}
return(asyncFtpResult.Response);
}
public override IAsyncResult BeginGetRequestStream(AsyncCallback callback, object state)
{
if (method != WebRequestMethods.Ftp.UploadFile && method != WebRequestMethods.Ftp.UploadFileWithUniqueName && method != WebRequestMethods.Ftp.AppendFile)
{
throw new ProtocolViolationException();
}
lock (locker)
{
CheckIfAborted();
if (State != RequestState.Before)
{
throw new InvalidOperationException("Cannot re-call BeginGetRequestStream/BeginGetResponse while a previous call is still in progress");
}
State = RequestState.Scheduled;
}
asyncResult = new FtpAsyncResult(callback, state);
#if SSHARP
ThreadPool.QueueUserWorkItem(ProcessRequest);
#else
Thread thread = new Thread(ProcessRequest);
thread.Start();
#endif
return(asyncResult);
}
public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
if (asyncResult != null && !asyncResult.IsCompleted)
{
throw new InvalidOperationException("Cannot re-call BeginGetRequestStream/BeginGetResponse while a previous call is still in progress");
}
CheckIfAborted();
asyncResult = new FtpAsyncResult(callback, state);
lock (locker)
{
if (InFinalState())
{
asyncResult.SetCompleted(true, ftpResponse);
}
else
{
if (State == RequestState.Before)
{
State = RequestState.Scheduled;
}
#if SSHARP
ThreadPool.QueueUserWorkItem(ProcessRequest);
#else
Thread thread = new Thread(ProcessRequest);
thread.Start();
#endif
}
}
return(asyncResult);
}
public override Stream EndGetRequestStream(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException("asyncResult");
}
if (!(asyncResult is FtpAsyncResult))
{
throw new ArgumentException("asyncResult");
}
if (State == RequestState.Aborted)
{
throw new WebException("Request aborted", WebExceptionStatus.RequestCanceled);
}
if (asyncResult != this.asyncResult)
{
throw new ArgumentException("AsyncResult is from another request!");
}
FtpAsyncResult res = (FtpAsyncResult)asyncResult;
if (!res.WaitUntilComplete(timeout, false))
{
Abort();
throw new WebException("Request timed out");
}
if (res.GotException)
{
throw res.Exception;
}
return(res.Stream);
}
