New libc malloc patch

[Hiten Pandya]

Thanks Jason!

Kind Regards,

--
Hiten Pandya
hiten.pandya at gmail.com

On 01/12/05, Jason Evans <jasone at canonware.com> wrote:
> On Nov 29, 2005, at 2:52 AM, Hiten Pandya wrote:
> > I see that you have included an implementation of red-black tree CPP
> > macros, but wouldn't it be better if you were to use the ones in
> > <sys/tree.h> ?  I have only had a precursory look, but I would have
> > thought that would be the way to go.
>
> There's an updated patch available:
>
> http://www.canonware.com/~jasone/jemalloc/jemalloc_20051201a.diff
>
> This patch includes the following changes:
>
> *) Use sys/tree.h rather than a separate red-black tree implementation.
>
> *) Use the __isthreaded symbol to avoid locking for single-threaded
> programs, and to simplify malloc initialization.  The extra branches
> that are required to check __isthreaded should be more than offset by
> the removal of an atomic compare/swap operation.
>
> *) Fix an obscure bug (very difficult to trigger without changing
> some compile-time constants).
>
> Jason
>