Proposed Pthread affinity APIs

[Joel Sherrill]

On 11/12/2013 2:27 AM, Sebastian Huber wrote:
> On 2013-11-11 21:30, Jennifer Averett wrote:
>> @@ -206,6 +206,24 @@
>>   int	_EXFUN(pthread_attr_setguardsize,
>>   	(pthread_attr_t *__attr, size_t __guardsize));
>>
>> +#if defined(__USE_GNU) && defined(__rtems__)
>> +/* POSIX thread APIs beyond the POSIX standard but provided in RTEMS
>> + * for compatibility with GNU/Linux.
>> + */
> 
> Who is supposed to define this __USE_GNU?
> 

The application or implementation before including
the header files.  This is common practice and how
it is done in /usr/include/pthread.h on GNU/Linux.

http://man7.org/linux/man-pages/man3/pthread_attr_setaffinity_np.3.html

There are also other constants like thus __USE_XOPEN2K, __USE_BSD,
and __USE_XOPEN2K8 are pretty common. It is similar to the STDC
one but that's usually tripped by gcc, while these are application
choices on what library API standard to adhere to.

Sorry to sound pendantic but this is the common practice.

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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