void UserStreamRead_End(IAsyncResult ar)
{
TransStateObjectStream stateObj = (TransStateObjectStream)ar.AsyncState;
try
{
stateObj.UpdateContext();
int num = stateObj.UserStream.EndRead(ar);
if (0 == num) //for example coping zero-length file
{
FinishTransferingStream(DataStream);
OnDataTransfered(null, 0);
OnCompleted();
stateObj.SetCompleted();
}
else
{
DataStream.BeginWrite(_workBuffer,
0,
num,
new AsyncCallback(this.WriteDataStream_End),
stateObj);
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
catch
{
NSTrace.WriteLineError("Non-CLS exception at: " + Environment.StackTrace);
throw;
}
}
private void OnRecieved(IAsyncResult ar)
{
ReaderStateObject stateObj = (ReaderStateObject)ar.AsyncState;
try
{
stateObj.UpdateContext();
int readNum = _socket.EndReceive(ar);
if (0 == readNum)
{
throw GetClosedException();
}
_linesBuilder.PutData(_recvBuffer, readNum, false);
BuildResponse(stateObj);
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
catch
{
NSTrace.WriteLineError("Non-CLS exception at: " + Environment.StackTrace);
throw;
}
}
internal void SetCompleted()
{
lock (this)
{
this.UpdateContext();
this._isCompleted = true;
if (this._wait != null)
{
this._wait.Set();
}
}
this.dumpActivityException();
try
{
if (this.CallBack != null)
{
this.CallBack(this);
}
}
catch (System.Exception exception)
{
NSTrace.WriteLineError("Exception in CB: " + exception.ToString());
throw;
}
catch
{
NSTrace.WriteLineError("Non CLS exception in CB: " + Environment.StackTrace.ToString());
throw;
}
}
private void dumpActivityException()
{
System.Exception exception = this.Exception;
if (exception != null)
{
int hashCode = Thread.CurrentThread.GetHashCode();
NSTrace.WriteLineError((string.Format("{0} ---------- Start Exception Info -----------------------------\n", hashCode) + string.Format("{0} Activity: {1}\n", hashCode, this.ActivityName) + string.Format("{0} Stack: {1}\n", hashCode, Environment.StackTrace.ToString())) + string.Format("{0} Exception: {1}\n", hashCode, exception.ToString()) + string.Format("{0} ---------- End Exception Info -----------------------------", hashCode));
}
}
void DataStreamRead_End(IAsyncResult ar)
{
TransStateObjectStream stateObj = (TransStateObjectStream)ar.AsyncState;
try
{
stateObj.UpdateContext();
int num = DataStream.EndRead(ar);
DTPStream userStream = (DTPStream)stateObj.UserStream;
if (num > 0)
{
long require = userStream.AvailableSpace;
if (num > require)
{
num = (int)require;
}
stateObj.Transfered += num;
OnDataTransfered(_workBuffer, num);
//write received data to user stream
userStream.BeginWrite(_workBuffer,
0,
num,
new AsyncCallback(this.UserStreamWrite_End),
stateObj);
}
else
{
userStream.Flush();
OnCompleted();
stateObj.SetCompleted();
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
catch
{
NSTrace.WriteLineError("Non-CLS exception at: " + Environment.StackTrace);
throw;
}
}
void UserStreamWrite_End(IAsyncResult ar)
{
TransStateObjectStream stateObj = (TransStateObjectStream)ar.AsyncState;
try
{
stateObj.UpdateContext();
DTPStream userStream = (DTPStream)stateObj.UserStream;
userStream.EndWrite(ar);
if (_aborted)
{
throw new FtpAbortedException();
}
if (userStream.AvailableSpace > 0)
{
DataStream.BeginRead(_workBuffer,
0,
_workBuffer.Length,
new AsyncCallback(this.DataStreamRead_End),
stateObj);
}
else
{
_manuallyClosed = true;
userStream.Flush();
OnCompleted();
stateObj.SetCompleted();
}
}
catch (Exception e)
{
stateObj.Exception = e;
stateObj.SetCompleted();
}
catch
{
NSTrace.WriteLineError("Non-CLS exception at: " + Environment.StackTrace);
throw;
}
}
