Cancalletion token and download callback in the SftpClient DownloadFileAsync / BeginDownloadFile?

[synek317]

Both methods call InternalDownloadFile, which accepts both a download callback and a cancellation token.

However:

• DownloadFileAsync does not support a download callback.
• BeginDownloadFile does not support a cancellation token.

Is there a specific reason for this design?

I'm struggling to implement a sequential download of multiple files with a global timeout (for example, a timeout that applies to the entire download process across all files) along with progress reporting. With the current API, this seems unnecessarily challenging.

Please note that I'm not a very advanced user of async in c#. If the above does not make sense, I would appreciate advice on how to do it better.