[LTP] [PATCH 2/2] syscalls/timer_settime01: Make sure the timer fires

[Cyril Hrubis]

Hi!
> > This works well for all clocks except CLOCK_PROCESS_CPUTIME_ID and
> > CLOCK_THREAD_CPUTIME_ID for some reason. I tried to read the values for
> > those clocks by sleeping for 1 second and then reading values using
> > timer_gettime() in a loop, and the value incremented every 15-16 seconds
> > by a value of 1 (which was in ms if I am not wrong).
> >
> > No idea what the hell is going on here and so need experts advice :)
> 
> The problem is that these clocks only tick while the process is running. Instead
> of sleeping for one second, you need to be in a busy-loop to ensure they
> actually advance.

Indeed, we may as well do something as:

	while (!caught_signal);

instead of sleep() in the case of the CPUTIME clocks.

-- 
Cyril Hrubis
chrubis@suse.cz