On Fri, Aug 03, 2007 at 09:54:17AM -0700, Eric Merritt wrote:
>  It actually helps a lot. I wasn't quite  expect you to do it all for
> me. Thanks, this saved me a bunch of time in doing it myself and
> figuring out the ffi which I haven't used before. I owe you one.

Just be careful to protect Ocaml values with CAMLparam*
and to declare them with CAMLlocal* if you care about your sleep;
'cause the ``due to garbage collection'' bug may be hard to find
or reproduce.

A few pointers, if you haven't them already:
http://caml.inria.fr/pub/docs/oreilly-book/html/index.html#chap-interop
http://caml.inria.fr/pub/ml-archives/caml-list/2007/01/a169d698ad11a6017c87f2d98db860e6.en.html