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From: Goswin von Brederlow <goswin-v-b@web.de>
To: Alain Frisch <alain@frisch.fr>
Cc: Romain Beauxis <toots@rastageeks.org>, caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Bigarrays and blocking_section..
References: <201005251125.21755.toots@rastageeks.org>
	<4BFCB903.50608@frisch.fr>
Date: Wed, 26 May 2010 08:47:09 +0200
In-Reply-To: <4BFCB903.50608@frisch.fr> (Alain Frisch's message of "Wed, 26
	May 2010 08:00:35 +0200")
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X-Spam: no; 0.00; bigarrays:01 frisch:01 frisch:01 pointer:01 malloc:01 malloc:01 alloc:01 bigarray:01 ocaml:01 bigarray:01 ocaml:01 mfg:98 wrote:01 ints:01 caml-list:01 

Alain Frisch <alain@frisch.fr> writes:

> On 5/25/2010 6:25 PM, Romain Beauxis wrote:
>> My understanding is that after the line  "frame_of_value(_rgb,&rgb);", the C
>> object rgb only contains ints and a pointer to a block of memory allocated by
>> malloc.
>
> Did you allocated the C array yourself with malloc? (And then used
> alloc_bigarray to wrap it as an OCaml bigarray.)  Otherwise, if you
> created the bigarray from OCaml code, you need to keep the bigarray
> live
> with some GC root, or the memory for the array can be released.
>
>
> Alain

He did declare it as local varaible with the proper makro I believe.

MfG
        Goswin