Op 31 jan. 2011 22:15 schreef "K. Frank" <[email protected]> het
volgende:
>
> Hello Ruben (and Kai)!
>
> On Mon, Jan 31, 2011 at 3:17 PM, Kai Tietz <[email protected]>
wrote:
> > 2011/1/31 Ruben Van Boxem <[email protected]>:
> >> @Kai: I believe you were working on winpthreads. Would it be OK to
integrate
> >> this into libc++ or should this be part of the mingw runtime regardless
and
> >> be used/linked like that?
> >
> > I am fine, nevertheless license parts are missing in source (it will
> > have ZPL 2.1 license, which is compatible to (L)GPL as fas as I know)
> > and we need still some testing for it.
> > We still don't have made here final decission, if winpthread will be
> > fixed part of CRT, or if it will be published as separate option
> > library. For some reason I prefer variant 1, but for shared scenario
> > winpthread need then some improvments, as I dislike to have many
> > instances of it within one application cause by using in EXE and DLLs.
>
I'll await your final OK then (i.e. Until you're happy with the code ;-)
>
> I imagine that this would also be true for clang / libc++, although this
> is pure speculation on my part.
>
Well, Clang uses native Windows threads internally I think, but libc++ was
written with pthreads in mind.
> Pthreads is a good api, and people want to use it on windows
> independent of std::thread. So if winpthreads is on track to become
> part of mingw-w64, then there is not much benefit to providing a native
> (i.e., non-pthreads) implementation of std::thread. It would be mostly
> duplicative effort, and cause confusion by having two incompatible
> implementations.
>
> Please let me know what you think makes sense.
Well, i don't think C++ std::thread and a C winpthread need any
compatibility. Maybe one implementation is more logical for gcc. I would
like a native windows way for llvm/clang, it's just... cleaner ;-)
Or: could a runtime check be made to enable a specific backend at startup,
using Kai's code on Windows Server 2003-, and Frank's code on Vista+, with a
nice pthread interface as you both have now? That's the best of both world
IMHO...
Thanks,
Ruben
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