> On Oct 9, 2020, at 7:02 AM, Benito van der Zander via fpc-pascal
> <fpc-pascal@lists.freepascal.org> wrote:
>
> Writing a file should write the data in a temporary file and then rename the
> temporary file to replace the target file. Otherwise it might destroy the
> target file, without writing the new content, when there is an error.
> Although not even renaming is always safe, some people say you need a
> filesystem-specific transaction log.
I've seen in some API's they have an "atomic" flag for write file functions
which do the swap you're describing. I agree it's a smart thing to include in
the function but it's best to be an option since there is an additional
operation being performed and affects performance.
Regards,
Ryan Joseph
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