[vlc-devel] [PATCH v2 01/10] core: add atomic refcounter helper

Rémi Denis-Courmont remi at remlab.net
Mon Jul 2 17:43:19 CEST 2018

There was a protection and you removed it. By definition, we can obviously not have more uintptr_max in-memory refs.

Now how does that thinking work with uint_max??

Le 2 juillet 2018 18:36:34 GMT+03:00, Romain Vimont <rom1v at videolabs.io> a écrit :
>On Mon, Jul 02, 2018 at 06:25:57PM +0300, Rémi Denis-Courmont wrote:
>> 1) This creates obvious overflow.
>There was no protection against refcount overflow before. This helper
>does not add a protection against refcount overflow.
>It seems to me that usages of atomic_uintptr_t for refcounters were
>an inconsistency, not justified by atomic_uint being not large enough.
>And if it were the case, atomic_uintptr_t is not appropriate.
>> 2) So this won't work for e.g. picture_t.
>Patch 3 use the refcounter for picture_priv_t. What's the problem?
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