atomic
Whether writing is done atomically.
Declaration
static var atomic: FileWrapper.WritingOptions { get }Discussion
You can use this option to ensure that, when overwriting a file package, the overwriting either completely succeeds or completely fails, with no possibility of leaving the file package in an inconsistent state. Because this option causes additional I/O, you shouldn’t use it unnecessarily. For example, don’t use this option in an override of -[NSDocument write(to:ofType:)], because NSDocument safe-saving is already done atomically.