Re: [Mingw-w64-public] Thoughts on supporting the C++11 thread library on Windows

[Gabriel Dos Reis <gdr at integrable-solutions dot net>]

On Wed, May 9, 2012 at 2:30 PM, K. Frank <kfrank29.c@gmail.com> wrote:
> Hi Gaby!
>
> On Wed, May 9, 2012 at 3:08 PM, Gabriel Dos Reis
> <gdr@integrable-solutions.net> wrote:
>> On Wed, May 9, 2012 at 2:06 PM, K. Frank <kfrank29.c@gmail.com> wrote:
>>
>>> However, as noted in my previous post, I have happily done some
>>> (limited) windows-api threading programming with Ruben's build
>>> (and also did the windows-api threading programming necessary
>>> to implement <thread>), all, I guess, with a gcc build built using
>>> --enable-threads=posix, so what then does --enable-threads=win32
>>> actually do?
>>
>> See TDM's build (which is --enable-threads=win32)
>
> I've used a couple of TDM's builds in the past (but I'm not sure I
> ever used it with threading, unless maybe a few simple test
> programs with Qt's QThread, and such). ?But I haven't noticed
> any difference (other than, I would suspect, pthreads not working).
>
> So what does --enable-threads=win32 vs. --enable-threads=posix
> actually do?
>
>> -- Gaby
>
> Thanks.
>
>
> K. Frank

win32 is the MS Win32 threading model.  If that is the default of
the compiler, I have a guarantee that I can mix with Win32 threading
semantics; otherwise, I don't.  Multithreading programming is sufficiently
complicated that we don't want to make confuse them just on
anedoctical trial.  See also

   http://gcc.gnu.org/viewcvs/trunk/libgcc/config/i386/gthr-win32.h?view=markup
   http://gcc.gnu.org/viewcvs/trunk/libgcc/config/i386/gthr-win32.c?revision=184997&view=markup

-- Gaby