Re: Boehm-Demers-Weiser conservative garbage collector and GNAT

[Florian Weimer <fw@deneb.enyo.de>]

Martin Krischik <krischik@users.sourceforge.net> writes:

> The Boehm-Demers-Weiser conservative garbage collector has atomic
> memory which must be pointer free. But this is used only for
> performance improvemend.

Flagging atomic memory (and memory without internal access points) is
crucial if you allocate large data structures (and cannot use the
generational collector for some reason).

> Current status is that I implemented the thin and thick bindung to the
> collector and added the collector to my Trace class. Trace is used in any
> class and task so it a good test. But I will add further tests.

Interesting.  A project of mine which is still under development
changes GNAT itself to support the Boehm-Demers-Weiser collector:

  <http://www.enyo.de/fw/software/gnat-gc/>

The project is not finished, but I think I've implemented the most
complicated things.