Re: [Jack-Devel] jconvolver and OSX

On Mon, Feb 28, 2011 at 6:25 AM, Fons Adriaensen <[hidden]> wrote:
> Because it doesn't make sense for what are just internal
> variables, there is no need to make them visible outside
> the process they are used in.
>
> OSX does provide anonymous mutexes and condition variables,
> so why not anonymous semaphores ?

as the code pasted by torben demonstrates, its just a matter of
unlinking the semaphore before proceeding to use it. one could quibble
about the "race condition" that exists for a few microseconds during
which the semaphore *is* publically visible, but really its no
different then the historical technique to create process-private
temporary files.

the *real* issue on OS X is that apple implemented sem_init() with a
stub function. it does not return an error, but does nothing at all.
absolutely appalling decision on their part.

--p

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