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);
Thread thread = new Thread(ProcessRequest);
thread.Start();
return(asyncResult);
}
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 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;
}
Thread thread = new Thread(ProcessRequest);
thread.Start();
}
}
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);
}
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);
Thread thread = new Thread (ProcessRequest);
thread.Start ();
return asyncResult;
}
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 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;
Thread thread = new Thread (ProcessRequest);
thread.Start ();
}
}
return asyncResult;
}