Directory/File Copy/Move Cancel Support

[vector-man]

Can we get versions of all of the methods with cancellation support (cancellation tokens or something similar)? So that I can cancel a file or directory move/copy in progress?

[hangy]

The implementation here is just a wrapper around File.Copy, which does not have a cancellable implementation.

txFileManager/ChinhDo.Transactions.FileManager/CopyOperation.cs

Line 32 in a220763

File.Copy(sourceFileName, path, overwrite);

I believe this is true for most operations. Implementing this depends on dotnet/runtime#20695 (comment).

[chinhdo]

@hangy Thanks for the info. I think once cancelable support is available in .NET framework, we can work on adding it to this package.

[vector-man]

Do you think doing it with FileStream.CopyToAsync(....) would work for now? I believe it's not as efficient as doing it with File.Copy(...), but it works.

More on the discussion of it's efficiency: https://stackoverflow.com/questions/882686/non-blocking-file-copy-in-c-sharp

[hangy]

Do you think doing it with FileStream.CopyToAsync(....) would work for now? I believe it's not as efficient as doing it with File.Copy(...), but it works.

More on the discussion of it's efficiency: https://stackoverflow.com/questions/882686/non-blocking-file-copy-in-c-sharp

If all you care about is the file content, then you can use CopyToAsync. I believe either of the suggestions on SO will be fine.

But beware that File.Copy may work different than that, because it probably calls native file system functions. Those may also copy additional metadata like timestamps or ie. NTFS Alternate Streams, which copying the file stream won't do.