From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Delivered-To: caml-list@yquem.inria.fr Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by yquem.inria.fr (Postfix) with ESMTP id 41A43BC48 for ; Tue, 5 Apr 2005 16:15:00 +0200 (CEST) Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35]) by nez-perce.inria.fr (8.13.0/8.13.0) with ESMTP id j35EExFW005579 for ; Tue, 5 Apr 2005 16:14:59 +0200 Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id QAA32112 for ; Tue, 5 Apr 2005 16:14:59 +0200 (MET DST) Received: from alex.barettalocal.com (h213-255-109-130.albacom.net [213.255.109.130] (may be forged)) by nez-perce.inria.fr (8.13.0/8.13.0) with ESMTP id j35EEwd6005576 for ; Tue, 5 Apr 2005 16:14:58 +0200 Received: from [127.0.0.1] (localhost.localdomain [127.0.0.1]) by alex.barettalocal.com (Postfix) with ESMTP id 086C02BAAD0; Tue, 5 Apr 2005 16:14:58 +0200 (CEST) Message-ID: <42529D62.7050505@barettadeit.com> Date: Tue, 05 Apr 2005 16:14:58 +0200 From: Alex Baretta User-Agent: Debian Thunderbird 1.0 (X11/20050116) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Eijiro Sumii Cc: caml-list@inria.fr Subject: Re: [Caml-list] select (or polling) on in_channel? References: <20050404.162414.18571932.eijiro_sumii@anet.ne.jp> <425226CF.80708@barettadeit.com> <20050405.093439.68549116.eijiro_sumii@anet.ne.jp> In-Reply-To: <20050405.093439.68549116.eijiro_sumii@anet.ne.jp> X-Enigmail-Version: 0.90.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Miltered: at nez-perce with ID 42529D63.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Miltered: at nez-perce with ID 42529D62.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; baretta:01 caml-list:01 eijiro:01 sumii:01 baretta:01 eijiro:01 threading:01 wrote:01 graph:01 cyclic:01 passing:01 implemented:02 tricky:02 alex:03 alex:03 X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on yquem.inria.fr X-Spam-Status: No, score=0.1 required=5.0 tests=FORGED_RCVD_HELO autolearn=disabled version=3.0.2 X-Spam-Level: Eijiro Sumii wrote: > From: "Alex Baretta" > I rather want to avoid multi-threading if select could be easy enough, > because the former is often too tricky due to the possibility of > deadlocks and races. > > Eijiro Static determination of potential deadlocks in a message passing environment like that implemented in Event amounts to proving that a graph is cyclic. Selecting amounts to manual threading: it gives you more control, but not necessarily any more safety. Alex -- ********************************************************************* http://www.barettadeit.com/ Baretta DE&IT A division of Baretta SRL tel. +39 02 370 111 55 fax. +39 02 370 111 54 Our technology: The Application System/Xcaml (AS/Xcaml) The FreerP Project