[concurrency-interest] HalfSync

[David Holmes]

Allan Kielstra writes:
> HalfSync does make an assumption:  words are written atomically
> by hardware.  That wasn't always a valid assumption.  If that
> assumption doesn't hold, you do lose the atomic nature of AtomicInteger.

No, Java guarantees that reads/writes are atomic for all 32-bit values, and
all volatile values (32-bit and 64-bit).

Cheers,
David Holmes