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Message-ID: <4C86AABC.3010501@glondu.net>
Date: Tue, 07 Sep 2010 23:12:28 +0200
From: =?UTF-8?B?U3TDqXBoYW5lIEdsb25kdQ==?= <steph@glondu.net>
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To: Paolo Donadeo <p.donadeo@gmail.com>
Cc: OCaml mailing list <caml-list@yquem.inria.fr>,
	OCaml-Lua devel ML <ocaml-lua-devel@lists.forge.ocamlcore.org>
Subject: Re: [Caml-list] C binding and GC interaction: storing values outside
 the heap
References: <AANLkTi=VCN4+wpKYG_EWUNX5zsBAs5_G_1hb2Y3uJDsu@mail.gmail.com>
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X-Spam: no; 0.00; typedef:01 struct:01 ocaml:01 ocaml:01 alloc:01 alloc:01 sizeof:01 phane:98 steph:98 phane:98 heap:01 caml-list:01 data:02 data:02 callback:02 

Le 07/09/2010 22:58, Paolo Donadeo a =C3=A9crit :
> I'm writing a Lua API binding
> [...]
> typedef struct ocaml_data
> {
>  value state_value;
>  value panic_callback;
> } ocaml_data;
> [...]
>    /* alloc space for the register entry */
>    ocaml_data *data =3D (ocaml_data*)caml_stat_alloc(sizeof(ocaml_data)=
);
>    caml_register_global_root(&(data->panic_callback));
>    data->panic_callback =3D *default_panic_v;

Why don't you call caml_register_global_root on &(data->state_value) as
well?

--=20
St=C3=A9phane