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From: Lukasz Stafiniak <lukstafi@gmail.com>
Date: Tue, 5 Nov 2013 20:06:41 +0100
Message-ID: <CAJMfKEW7aWPm1M+xCQ60PmSZxD6Mb8e+AuhnZmik7PuHYgUkQg@mail.gmail.com>
To: Jean Krivine <jean.krivine@gmail.com>
Cc: caml users <caml-list@inria.fr>
Content-Type: multipart/alternative; boundary=047d7b5d98abd469be04ea72bc9d
Subject: Re: [Caml-list] out-of-the-heap 'a arrays ?


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On Tue, Nov 5, 2013 at 6:07 PM, Jean Krivine <jean.krivine@gmail.com> wrote:

>
> As far as I understand there is a module Ancient which I can use to tell
> the GC to ignore my array but, if I understand well, it would only work if
> I use my array in a read only fashion.
>

You cannot have pointers from Ancient heap to OCaml heap unless you do weak
pointer management (e.g. in the finalizer of a value). Otherwise I think
you're fine with modifying Ancient.

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<div dir=3D"ltr">On Tue, Nov 5, 2013 at 6:07 PM, Jean Krivine <span dir=3D"=
ltr">&lt;<a href=3D"mailto:jean.krivine@gmail.com" target=3D"_blank">jean.k=
rivine@gmail.com</a>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div c=
lass=3D"gmail_quote">

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><br><div>As far as I unders=
tand there is a module Ancient which I can use to tell the GC to ignore my =
array but, if I understand well, it would only work if I use my array in a =
read only fashion.</div>

</div></blockquote><div><br></div><div>You cannot have pointers from Ancien=
t heap to OCaml heap unless you do weak pointer management (e.g. in the fin=
alizer of a value). Otherwise I think you&#39;re fine with modifying Ancien=
t.<br>

</div></div></div></div>

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