From: Basile STARYNKEVITCH <basile@starynkevitch.net>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] printf and fork question
Date: Mon, 7 Mar 2005 15:03:33 +0100 [thread overview]
Message-ID: <20050307140332.GA23926@ours.starynkevitch.net> (raw)
In-Reply-To: <20050307144422.1e67bef6.micha-1@fantasymail.de>
Le Mon, Mar 07, 2005 at 02:44:22PM +0100, Michael écrivait/wrote:
> Hi,
>
> I don't understand why this:
>
> open Unix;;
> let _ =
> Printf.printf "Hi! %d\n" (getpid());
I suggest adding a
flush stdout;
at this point. Flushing buffers is always good (and not language
related) before forking under Unix.
> match fork() with
> | 0 -> if fork() <> 0 then exit 0;
> ()
> | id -> ignore (waitpid [] id)
>
> prints out that:
> Hi! 12215
> Hi! 12215
I don't know what is happening, but if the the flushing occurs after
the forks - eg at program exit - the behavior is understandable.
Regards.
--
Basile STARYNKEVITCH http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net
aliases: basile<at>tunes<dot>org = bstarynk<at>nerim<dot>net
8, rue de la Faïencerie, 92340 Bourg La Reine, France
next prev parent reply other threads:[~2005-03-07 14:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-07 13:44 Michael
2005-03-07 13:57 ` [Caml-list] " Gerd Stolpmann
2005-03-07 14:03 ` Basile STARYNKEVITCH [this message]
2005-03-07 14:05 ` David Fox
2005-03-07 14:10 ` Olivier Andrieu
[not found] ` <6b8a9142050307060758200ad3@mail.gmail.com>
2005-03-07 14:12 ` Michael
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