[Dovecot] Avoiding Hardlinks (was: Something other than dotlock for uidlist locking?)

Ben Schumacher me at benschumacher.com
Thu Aug 10 00:06:46 EEST 2006

On 8/9/06, James Berry <james at jberry.us> wrote:
> maildir-save.c: [NEED HELP]
>         In maildir_file_move(), there seems to be no fallback case, and I'm
> unsure of the desired  symantics, so I could use some suggestions
> here: can we just fall back into something like the code in file-copy.c?


This probably has to do with the way that Maildir's work. Check out
this links for details:


The use of hardlinks give you a level of atomicity and efficiency that
I'm not sure you're going to achieve using a standard copy, but I
suppose if HFS+ doesn't handle hardlinks well then it's not doing much
for you. Basically the hardlink solution gives you good atomicity even
through a process crash/kill... something that a straight data copy
and delete can't easily ensure.

It's really unfortunate that Apple made such an enormously poor
decision in the implementation of HFS+. Any chance you could just use
a UFS1 or UFS2 formatted drive for your mail storage?

Good luck,

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