atomic support for RTEMS Uniprocessor - AVR libc atomic block API

[Gedare Bloom]

That is interesting and could be a way to address atomic support for
some of the uniprocessors. It looks like the basic idea is the same as
I sketched, to disable/enable interrupts around the operation. As
mentioned, we do not know if this is going to be safe in all
situations, e.g. if the atomic operations are used somewhere that
interrupts cannot safely be preempted. I don't know if such a
situation is a realistic one to worry about.

-Gedare

On Mon, Feb 11, 2013 at 3:39 AM, Ralf Kirchner
<ralf.kirchner at embedded-brains.de> wrote:
> Possibly a little off topic and more over a little late,
> But did you have a look at the atomic block implementation in AVR libc?
> I think they have quite a nice API.
> You can find it documented here:
> http://www.nongnu.org/avr-libc/user-manual/group__util__atomic.html
> and the source code is here:
> http://www.nongnu.org/avr-libc/user-manual/atomic_8h_source.html
>
> Kind Regards
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