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SubjectRe: readdir loses renamed files
Andreas Dilger wrote:

>On Oct 28, 2004 11:34 +0200, Matthias Andree wrote:
>
>
>>On Mon, 25 Oct 2004, Theodore Ts'o wrote:
>>
>>
>>>And that's because there's no good way to do this without trashing the
>>>performance of the system, especially when most applications don't
>>>care. (Do you really want your entire system running significantly
>>>slower, penalizing all other applications on your system, just because
>>>of one stupid/badly-written application?)
>>>
>>>
>>Please - is it really necessary that application writers are offended in
>>this way? Timo is investing enormous time and effort in writing a *good*
>>application, and he's effectively seeking a way to *robustly* deal with
>>Maildir format mail storage. Please leave it at "readdir/getdents don't
>>work the way you expect and cannot for this and that reason."
>>
>>Timo tries to implement a *robust* Maildir reader and has just bumped
>>into the flaws of DJB's "no-locking" store.
>>
>>Yes, it's a mail server again that poses file system questions on this
>>list; only it's IMAP this time rather than SMTP and directory
>>synchronous I/O...
>>
>>
Matthias is right. readdir is badly architected, and no one has fixed
it for ~30 years.

It should be possible to perform an atomic readdir if that is what you
want to do and if you have space in your process to stuff the result.

Hans
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