I'm having trouble understanding the use cases for AtomicFile. Since it does not confer any thread safety, is it just for ensuring no partial/invalid files are written if the app crashes or device loses power during a file write? What would be the purpose of reading a file with AtomicFile?
is it just for ensuring no partial/invalid files are written if the app crashes or device loses power during a file write?
Yes.
Adding on to the cases, the OS can kill the process at anytime. AtomicFile should provide atomic guarantees in that case too.