Re: [Xenomai-help] pthread_[set|get]specific()

[Wolfgang Grandegger <wg@domain.hid>]

Gilles Chanteperdrix wrote:
> Wolfgang Grandegger wrote:
>> Hello,
>>
>> can pthread_[set|get]specifi()c be used safely in user space real-time
>> tasks. Or does it result in a switch to secondary mode?
> 
> I would expect pthread_getspecific to be safe on all platforms though
> (and actually, I think the fast mutexes implementation relies on that).
> 
> I would say it should be always safe or always non-safe. So, you may run
> a test with T_WARNSW (or XNTRAPSW) and you will know whether the
> implementation on your platform is safe.
> 
> pthread_setspecific is another story, maybe it can trigger a re-allocation?

In fact, I only need pthread_getspecific in the real-time context. Hm,
is it really fast? Maybe scanning my private phtread ids is faster.

Thanks.

Wolfgang.