From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2007-10-10 11:26:41
Markus Schöpflin escribió:
> Hello,
>
> this may be a silly question, but I have been wondering what the atomic
> read and write primitives are actually supposed to do?
>
> I mean, from the readers or writers POV a read or write is always atomic,
> isn't it? Am I missing something very obvious here?
In some architectures, a 32 read might not be atomic (even if the read
is aligned). I think that Intel system is always atomic. They are there
for completeness, to support systems where read or write might not be
atomic.
>
> Thanks,
> Markus
Regards,
Ion