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Re: Help me to understand the POSIX timers
Ulrich Drepper wrote:
> george anzinger <firstname.lastname@example.org> writes:
> > I think I have a charter to do just that, but first I need to know what
> > they do now. Where, for example, is the thread code. I tried to get
> > TAGS to find it but it fails.
The timer_* seems to be in linuxthreads/sysdeps/pthread/* but
timer_settime calls __timer_thread_wakeup() which I can not find.
> The current code is really nothing you should even look at if you are
> doing a kernel implementation. Read the standard, it contains all you
> have to know.
I have the kernel patch but I have yet to worry about process or thread
timers. I am trying to explore if it might be wise to put these in user
land. I hesitate to drop support for them since they are already, at
least conditionally, present in glibc. On the other hand, I haven't
check to see if _POSIX_CPUTIME and/or _POSIX_THREAD_CPUTIME are defind.
On a related issue, do you know if there are man pages for clocks &
Real time sched: http://sourceforge.net/projects/rtsched/