Re: UKKQueue and CVS
Re: UKKQueue and CVS
- Subject: Re: UKKQueue and CVS
- From: Martin Hewitson <email@hidden>
- Date: Fri, 24 Dec 2010 15:45:54 +0100
Hi Uli,
I did try various combinations of the flags, and I even tried listening for all events:
UKKQueueNotifyAboutRename | UKKQueueNotifyAboutWrite | UKKQueueNotifyAboutDelete | UKKQueueNotifyAboutAttributeChange
I din't receive events having done a cvs commit on a file. However, I do get notified if I edit the file externally using vi or some other editor. I googled quite a bit but I can't find out what CVS actually does during a commit. I guess I'll try to dig some more. Perhaps I can get the source code for CVS and check there.
Cheers,
Martin
On Dec 24, 2010, at 12:22 AM, Uli Kusterer wrote:
> On 21.12.2010, at 11:58, Martin Hewitson wrote:
>> I have implemented an editor where I use UKKQueue to handle changes to the file by other apps. The problem is that I don't get a notification if the file is committed to a CVS repository (or an SVN repository, for that matter).
>
> Many applications create a second file, write to that, then swap the two out afterwards. That way, if the write fails, you don't lose the file. Since kqueues work at a low level, you'll get a 'delete' or 'rename/move' notification in that case only. Have you checked if that's the case?
>
> Cheers,
> -- Uli Kusterer
> "The Witnesses of TeachText are everywhere..."
> http://www.zathras.de
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: email@hidden
WWW: http://www.aei.mpg.de/~hewitson
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