From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dmitry.bely@gmail.com>
X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr
X-Spam-Level: *
X-Spam-Status: No, score=1.1 required=5.0 tests=AWL,SPF_NEUTRAL 
	autolearn=disabled version=3.1.3
X-Original-To: caml-list@yquem.inria.fr
Delivered-To: caml-list@yquem.inria.fr
Received: from discorde.inria.fr (discorde.inria.fr [192.93.2.38])
	by yquem.inria.fr (Postfix) with ESMTP id CF6B1BC69
	for <caml-list@yquem.inria.fr>; Wed,  9 May 2007 12:45:47 +0200 (CEST)
Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.235])
	by discorde.inria.fr (8.13.6/8.13.6) with ESMTP id l49AjkV2032095
	for <caml-list@inria.fr>; Wed, 9 May 2007 12:45:47 +0200
Received: by nz-out-0506.google.com with SMTP id l8so158206nzf
        for <caml-list@inria.fr>; Wed, 09 May 2007 03:45:45 -0700 (PDT)
DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed;
        d=gmail.com; s=beta;
        h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
        b=qHU9pVY83CfVrJYpgL/rBv1X2xaZSsC7J3p3BhULsHoAUlJVC9KAoXekeTcs3eVnZplJUeFLkzIeJ+r+WHxz76e6H3QofZSmQOL7LOV700H2vqCJP/whvFoUP+0oS4HQEqBxVV3XgV7UJBogs95ah/dYohNZortET8wh+f1dXS4=
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=beta;
        h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
        b=ZzzNGva4jyOxWjtnGbIHAB1X2KhqfDecvQc8+/W2Onv4EjsTLWz1xz5PA/voX2CFHzuwC1VvcsohxSPdQnCWIPz7C97RnwN9WTT3eLB+gcK1AmantOEgYlcuSHBlZkQBc78OuaGllAWQilhM4SzxhNr5vpToAq/xVd/Qrd1cSDs=
Received: by 10.114.25.3 with SMTP id 3mr149788way.1178707545445;
        Wed, 09 May 2007 03:45:45 -0700 (PDT)
Received: by 10.114.123.9 with HTTP; Wed, 9 May 2007 03:45:45 -0700 (PDT)
Message-ID: <90823c940705090345k5c70fcc3p35ca3cc4412909c2@mail.gmail.com>
Date: Wed, 9 May 2007 14:45:45 +0400
From: "Dmitry Bely" <dmitry.bely@gmail.com>
To: "Caml List" <caml-list@inria.fr>
Subject: Ocaml DLL and memory leaks
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
X-j-chkmail-Score: MSGID : 4641A65A.002 on discorde : j-chkmail score : X : 0/20 1 0.000 -> 1
X-Miltered: at discorde with ID 4641A65A.002 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)!
X-Spam: no; 0.00; ocaml:01 ocaml:01 runtime:01 argv:01 pervasives:01 exn:01 val:01 exn:01 val:01 dynamically:01 dmitry:01 dmitry:01 bely:01 bely:01 caml:02 

I have an Ocaml module packed into DLL that is dynamically loaded by
the main C program. What should I do to free all memory taken by Ocaml
runtime when the DLL is unloaded? The following scenario does not
work:

  [...]
  case DLL_PROCESS_ATTACH:
    [...]
    caml_startup(argv);
    break;

  case DLL_PROCESS_DETACH:
    value* at_exit = caml_named_value("Pervasives.do_at_exit");
    if (at_exit != NULL) caml_callback_exn(*at_exit, Val_unit);
    value* compact = caml_named_value("Gc.compact");
    if (compact != NULL) caml_callback_exn(*compact, Val_unit);
    /* Memory leak! */

Any idea?

- Dmitry Bely