[Caml-list] ocaml systhreads condition variables: no condvar_timedwait?

[Caml-list] ocaml systhreads condition variables: no condvar_timedwait?

[Chet Murthy]

I'm just starting to use Ocaml threads, and notice that there's no
equivalent of pthread_condvar_timedwait.  It seems pretty clear (and
easy) how to implement this for POSIX, but I don't know diddly about
how one might do so on Windows, nor have I looked into howto implement
it on vmthreads.

Has anybody already stumbled across this issue and resolved it?  (a
modest Google search reveals nothing).

Thanks,
--chet--

Re: [Caml-list] ocaml systhreads condition variables: no condvar_timedwait?

[oliver]

On Mon, Mar 11, 2013 at 03:17:13PM -0700, Chet Murthy wrote:
> 
> I'm just starting to use Ocaml threads, and notice that there's no
> equivalent of pthread_condvar_timedwait.
[...]

I looked up this function and found nothing.
It seems this is your personal phantasy function,
or possibly just a typo.

Possibly you mean
  pthread_cond_timedwait()

Ciao,
   Oliver

Re: [Caml-list] ocaml systhreads condition variables: no condvar_timedwait?

[Chet Murthy]

Oops, sorry, yes, I meant pthread_cond_timedwait().  In any case, it's
not wrappered in Ocaml systhreads, though clearly from the
implementation of pthread_cond_wait() (well, "st_condvar_wait" in
st_posix.h), it's trivial to add.

Just wondering why it was omitted, is all.

--chet--

On Tuesday, March 12, 2013 12:09:45 AM oliver wrote:
> On Mon, Mar 11, 2013 at 03:17:13PM -0700, Chet Murthy wrote:
> > I'm just starting to use Ocaml threads, and notice that there's no
> > equivalent of pthread_condvar_timedwait.
> 
> [...]
> 
> I looked up this function and found nothing.
> It seems this is your personal phantasy function,
> or possibly just a typo.
> 
> Possibly you mean
>   pthread_cond_timedwait()
> 
> Ciao,
>    Oliver

Re: [Caml-list] ocaml systhreads condition variables: no condvar_timedwait?

[Markus Mottl]

On Mon, Mar 11, 2013 at 7:11 PM, Chet Murthy <murthy.chet@gmail.com> wrote:
> Oops, sorry, yes, I meant pthread_cond_timedwait().  In any case, it's
> not wrappered in Ocaml systhreads, though clearly from the
> implementation of pthread_cond_wait() (well, "st_condvar_wait" in
> st_posix.h), it's trivial to add.
>
> Just wondering why it was omitted, is all.

FWIW, the Jane Street Core library implements this function in
Core.Std.Condition.timedwait.  I think it should be part of the
standard library, too, since it's a POSIX standard.

Regards,
Markus

-- 
Markus Mottl        http://www.ocaml.info        markus.mottl@gmail.com