Re: futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op

[Michael Kerrisk (man-pages)]

On 06/24/2016 11:52 AM, Thomas Gleixner wrote:
> On Fri, 24 Jun 2016, Michael Kerrisk (man-pages) wrote:
> > By the way, I just realized something that wasn't initially obvious
> > to me, and documented it in the futex(2) man page:
> >
> >               Note:  for  FUTEX_WAIT,  timeout is interpreted as a
> >               relative value.  This differs from other futex operâ
> >               ations,  where timeout is interpreted as an absolute
> >               value.  To obtain the equivalent of FUTEX_WAIT  with
> >               an  absolute  timeout, employ FUTEX_WAIT_BITSET with
> >               val3 specified as FUTEX_BITSET_MATCH_ANY.
> >
> > Okay?
>
> Yes.

Thanks, Thomas.

Cheers,

Michael



--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
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