Review Request: Add spinlocks lock type, based on GCC intrisincs

Thiago Macieira thiago at
Mon Aug 27 23:41:16 BST 2012

On segunda-feira, 27 de agosto de 2012 18.20.15, Michael Pyne wrote:
> > Please use the Qt atomic types. Until GCC 4.7, they generate better code.
> I agree, the reason it wasn't that way initially is mentioned in the 
> discussion on the bug (but basically because you can't simply put 
> QBasicAtomicInt in the union used to store the different lock types that
> are  possible).

Why not?

QBasicAtomicInt are permitted in unions. Besides, why do you want it in a 
union in the first place? You should not access the data that it holds *except* 
via the QBasicAtomicInt functions.

Thiago Macieira - thiago (AT) - thiago (AT)
   Software Architect - Intel Open Source Technology Center
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