Daniel Bünzli a écrit :
> Section 2) of this paper also has a very gentle and readable
> introduction to the gc :
> 
> http://portal.acm.org/citation.cfm?id=141130

Thanks for the link.

> Another thing you need to know, if you have long running pieces of C
> code that don't interact with ocaml's runtime system, is the two
> functions :
> 
> caml_enter_blocking_section
> caml_leave_blocking_section
> 
> They are explained in this message  :
> 
> http://caml.inria.fr/pub/ml-archives/caml-list/2001/06/58d7a7e8747056c3842e53b4e9454f44.en.html

OK.

So if I want to call R code that multithreads with OCaml, I should write 
something like

>   enter_blocking_section();
>   PROTECT(e = R_tryEval(Sexp_val(sexp_list), R_GlobalEnv, &error));
>   UNPROTECT(1);
>   leave_blocking_section();

Am I correct?

-- 
      Guillaume Yziquel
http://yziquel.homelinux.org/