Re: [Boost-users] TSan error with boost::interprocess::message_queue on macOS ARM

On 8/23/22 08:37, Ion Gaztañaga via Boost-users wrote:

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I looked at code of atomic_cas32() and it uses the legacy built-in __sync_val_compare_and_swap(). Can it be that that built-in isn't supported on ARM? Is there a newer built-in which should be used?

It could be. Can you test if __atomic_compare_exchange avoids the TSAN error?

inline boost::uint32_t atomic_cas32    ( volatile boost::uint32_t *mem    , boost::uint32_t with, boost::uint32_t cmp) {    __atomic_compare_exchange      (const_castboost::uint32_t*(mem), &cmp, &with, false      ,__ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);    return cmp; }

I changed the code as you suggested, but I still get the same error. Cheers, Jens