G'day Christos,
On Thu, Nov 19, 2009 at 06:44:02PM -0500, Christos Zoulas wrote:
> FYI, I've gotten rid of all the ${MACHINE} conditionals in my
> version of the code and this is what I am using now:
>
> http://www.zoulas.com/junk/atomic_bsd_zero.inline.hpp
I get a 404 from that URL unfortunately :(.
> So it turns out that NetBSD's atomic implementation (which is ~=
> to Solaris) has all the necessary functions to implement the calls
> directly without any glue. I just wrote macros/inlines for the
> FreeBSD to supplement the functions where they were missing.
>
> I don't think that the substitute functions (which I just copied
> from the bodies of the original file) are safe, since they do
> unlocked multiple accesses to the memory locations involved, so it
> would be better to implement directly the atomic primitives. But
> then again I did not look at them very hard.
Thanks for working on this, that sounds great :).
> MI:
> http://cvsweb.netbsd.org/bsdweb.cgi/src/common/lib/libc/atomic/
> MD[arm]:
> http://cvsweb.netbsd.org/bsdweb.cgi/src/common/lib/libc/arch/arm/atomic/
>
> Of course something needs to be done with 64 bit atomics on the 32
> bit implementations that don't support them, but...
Even without that this should expand the platform support considerably.
--
Greg Lewis Email : gle...@eyesbeyond.com
Eyes Beyond Web : http://www.eyesbeyond.com
Information Technology FreeBSD : gle...@freebsd.org
