svn commit: r241576 - in head/usr.sbin/cron: cron crontab lib

Xin Li delphij at delphij.net
Tue Oct 16 01:07:21 UTC 2012


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On 10/15/12 17:23, Eitan Adler wrote:
> On 15 October 2012 19:26, Adrian Chadd <adrian at freebsd.org> wrote:
>> On 15 October 2012 16:10, Eitan Adler <eadler at freebsd.org>
>> wrote:
>>> On 15 October 2012 18:45, Adrian Chadd <adrian at freebsd.org>
>>> wrote:
>>>> Why not sleep for the amonut of time needed before the next
>>>> event?
>>> 
>>> If the crontab changes in the meantime. If the next event is in
>>> a week, but you modify the crontab, you don't want to sleep
>>> until next event.
>> 
>> Right. So "check the crontab file" event is also an event with a 
>> timestamp in the future.
>> 
>> Maybe crontab should be using a command via a socket to reload,
>> rather than stat'ing files..
> 
> "Why we stat the file every quantum instead of using kqueue is a
> different question."

Because it's not guaranteed to work on every filesystems?  But yes I
think it would be a good idea to implement it and use it when all
filesystems used to store crontabs supports it.

Cheers,
- -- 
Xin LI <delphij at delphij.net>    https://www.delphij.net/
FreeBSD - The Power to Serve!           Live free or die
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