[jmm-dev] bitwise RMW operators, specifically testAndSetBit/BTS
paul.sandoz at oracle.com
Wed Jul 20 14:18:02 UTC 2016
> On 20 Jul 2016, at 12:37, Doug Lea <dl at cs.oswego.edu> wrote:
> On 07/20/2016 04:28 AM, Paul Sandoz wrote:
>> Perhaps i am asking for trouble bringing this up, but do we require acquire/release variants of getAndAdd and getAndSet? (IMHO we could drop addAndGet).
> I had noticed this as well. I agree that we ought to do this for the
> sake of consistency; adding:
> getAndAddRelease, getAndAddAcquire, getAndSetRelease, getAndSetAcquire
Again the same trick with Unsafe methods is applied in the anticipation they will be made intrinsic later on. On second thoughts it may be better if the currently non-intrinsic Unsafe acquire/release variants defer to the stronger volatile variant that is intrinsic. Any opinions on that?
I will defer the removal of addAndGet and the proposed renaming to separate patch.
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