Messages in this thread | | | Subject | Re: sys_settimeofday() | From | Eilert Brinkmann <> | Date | 07 Dec 1999 21:39:47 +0100 |
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David Mosberger <davidm@hpl.hp.com> wrote: > Can anyone think of a good reason as to why sys_settimeofday() should > not update the hardware clock (aka RTC) as well?
I think there is no good reason why settimeofday *should* update the RTC. This is not desired in all cases and changing an existing system call might cause problems with software expecting the old semantics.
> One possible reason is if different OSes have a different idea of what > the "epoch" is (as is the case on the Alpha, for example), but this is > not an issue in the particular case I'm interested in, so I'm > wondering if there are any other reasons. Fundamentally, I think it's > needlessly confusing for a user to have to remember to update the > hardware clock separately.
If this functionality is really needed, it seems to me that it would be a cleaner (and easy to implement) solution to put it in the user level program used to change the date, not in the kernel.
Eilert -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Eilert Brinkmann -- Universitaet Bremen -- FB 3, Informatik eilert@informatik.uni-bremen.de - eilert@tzi.org - eilert@linuxfreak.com http://www.informatik.uni-bremen.de/~eilert/
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