On Tue, 2011-01-11 at 05:45 +0900, Kuwahara,T. wrote:
> On Tue, Jan 11, 2011 at 1:49 AM, john stultz <[email protected]> wrote:
> > Leapsecond processing is done via an absolute hrtimer. Thus when the
> > time offset is set, the hrtimers that should have expired will fire
> > (just like with settimeofday) and the adjustment will then be made.
>
> How do you convert relative time to absolute time? It's not trivial
> because TAI offset is also a variable.
I don't believe I understand what you're getting at.
The proposed interface is almost identical in functionality to a
userland application doing the following:
offset = my_calculate_offset();
clock_gettime(CLOCK_REALTIME, &now);
newtime = my_add_ts(now, offset);
settimeofday(&newtime, 0);
The only difference is that you avoid the error from the delay between
the gettime call and the settime call. It just adds the offset directly
to the CLOCK_REALTIME.
thanks
-john
--
To unsubscribe from this list: send the line "unsubscribe linux-api" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
