public void EndWriteFileRequest(IAsyncResult result, out int position, out Exception ex)
{
BacnetAsyncResult res = (BacnetAsyncResult)result;
ex = res.Error;
if (ex == null && !res.WaitForDone(m_timeout))
ex = new Exception("Wait Timeout");
if (ex == null)
{
//decode
bool is_stream;
if (Services.DecodeAtomicWriteFileAcknowledge(res.Result, 0, res.Result.Length, out is_stream, out position) < 0)
ex = new Exception("Decode");
}
else
{
position = -1;
}
res.Dispose();
}