void ClearAtEnd(RunDTP_SO stateObj)
{
stateObj.SetCompleted();
//----------------------------------------
//Clear context
_client.CurrentDTP = null;
_currentDC = null;
//----------------------------------------
//Unlock control connection, now the command
//like abort, stat, quit could be issued
UnlockCC(stateObj);
}
void HandleCatch(Exception e,
RunDTP_SO stateObj)
{
//----------------------------------------
//Clear context before unlocking
_client.CurrentDTP = null;
//----------------------------------------
//Unlock control connection, now the command
//like abort, stat, quit could be issued
try
{
UnlockCC(stateObj);
}
catch (Exception ex)
{
NSTrace.WriteLineError("UnlockCC exception: " + ex.ToString());
}
catch
{
NSTrace.WriteLineError("UnlockCC non-cls exception: " + Environment.StackTrace);
}
if (_disposed)
{
stateObj.Exception = GetDisposedException();
}
else if (null != e)
{
NSTrace.WriteLineError("DTP exception: " + e.ToString());
stateObj.Exception = e;
}
else
{
NSTrace.WriteLineError("DTP non cls exception: " + Environment.StackTrace);
}
//Do not set completed in case we
//have non-cls exception
if (null != stateObj.Exception)
{
stateObj.SetCompleted();
}
}
void SendCommandEx_End(IAsyncResult ar)
{
RunDTP_SO stateObj = (RunDTP_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
FtpResponse response = _cc.EndSendCommandEx(ar);
if (response.IsCompletionReply)
{
NSTrace.WriteLineWarning("Executing DTP: receive completion as first reply.");
UnlockCC(stateObj);
stateObj.SetCompleted();
}
else
{
FtpClient.CheckPreliminaryResponse(response);
//establish connection now, if it is inbound
if (FtpDataConnectionType.Inbound == _currentDC.Type)
{
_currentDC.BeginEstablish(stateObj.Timeout,
new AsyncCallback(this.InboundEstablish_End),
stateObj);
}
else
{
DoRunDTP(stateObj);
}
}
}
catch (Exception e)
{
HandleCatch(e, stateObj);
}
catch
{
HandleCatch(null, stateObj);
}
}