From: Matthew Heaney <mheaney@on2.com>
Subject: Re: GNAT for MS Visual Studio
Date: Sat, 06 Oct 2007 07:47:01 -0700
Date: 2007-10-06T07:47:01-07:00 [thread overview]
Message-ID: <1191682021.844225.236870@g4g2000hsf.googlegroups.com> (raw)
In-Reply-To: <4703F02D.3030207@obry.net>
On Oct 3, 2:40 pm, Pascal Obry <pas...@obry.net> wrote:
>
> "use" here does not mean "modification". I don't even start to
> understand what could be wrong to have two tasks "reading" the same
> container. The container won't change, so this can't be a problem.
No, this is incorrect. The container keeps track of nested calls
(e.g. Query_Element, Iterate) using a count, in order to prevent
container misuse (e.g. deleting the element while it's being
queried). So even though the logical view of the container doesn't
change, then physical view does change, and so the standard requires
that multiple tasks accessing a container must be properly
synchronized, even when the access is read-only.
next prev parent reply other threads:[~2007-10-06 14:47 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-06 2:20 GNAT for MS Visual Studio William J Thomas
2007-09-06 7:44 ` anon
2007-09-06 8:49 ` Rob Veenker
2007-09-06 11:12 ` William J Thomas
2007-09-11 3:15 ` Jeffrey Creem
2007-09-20 0:00 ` William J Thomas
2007-09-21 0:46 ` Randy Brukardt
2007-09-21 3:27 ` William J Thomas
2007-09-21 17:31 ` Markus E L
2007-09-21 18:13 ` Dmitry A. Kazakov
2007-09-22 1:42 ` Randy Brukardt
2007-09-22 1:59 ` Randy Brukardt
2007-09-22 5:19 ` Simon Wright
2007-09-22 14:42 ` Steve
2007-09-24 8:14 ` Jean-Pierre Rosen
2007-09-25 1:44 ` Steve
2007-09-25 6:41 ` Jean-Pierre Rosen
2007-09-25 8:29 ` Michael Bode
2007-09-25 18:00 ` Jeffrey R. Carter
2007-09-25 18:31 ` Michael Bode
2007-09-25 11:20 ` Markus E L
2007-09-26 2:23 ` Steve
2007-09-26 12:21 ` Markus E L
2007-09-28 0:49 ` Randy Brukardt
2007-09-28 2:43 ` Steve
2007-09-28 9:36 ` Markus E L
2007-09-29 15:59 ` Michael Bode
2007-09-29 16:50 ` Markus E L
2007-09-26 6:58 ` Ole-Hjalmar Kristensen
2007-09-26 13:35 ` Steve
2007-09-26 14:06 ` Markus E L
2007-09-27 18:26 ` Michael Bode
2007-09-27 20:18 ` Markus E L
2007-09-28 6:45 ` Jean-Pierre Rosen
2007-09-29 9:18 ` michael bode
2007-09-28 2:29 ` Steve
2007-09-28 9:23 ` Markus E L
2007-09-30 14:50 ` Steve
2007-10-02 3:50 ` Randy Brukardt
2007-10-02 11:06 ` Peter C. Chapin
2007-10-02 20:38 ` Maciej Sobczak
2007-10-02 20:45 ` Pascal Obry
2007-10-03 19:23 ` Maciej Sobczak
2007-10-03 19:40 ` Pascal Obry
2007-10-03 20:08 ` Maciej Sobczak
2007-10-04 20:18 ` Maciej Sobczak
2007-10-04 20:21 ` Pascal Obry
2007-10-05 13:25 ` Maciej Sobczak
2007-10-06 10:50 ` concurrent access to containers (was: GNAT for MS Visual Studio) Georg Bauhaus
2007-10-05 20:15 ` GNAT for MS Visual Studio Simon Wright
2007-10-06 14:47 ` Matthew Heaney [this message]
2007-10-06 15:03 ` Pascal Obry
2007-10-06 16:03 ` Dmitry A. Kazakov
2007-10-06 17:07 ` Pascal Obry
2007-10-06 18:30 ` Dmitry A. Kazakov
2007-10-06 20:32 ` Maciej Sobczak
2007-10-07 7:35 ` Dmitry A. Kazakov
2007-10-07 21:30 ` Maciej Sobczak
2007-10-08 7:50 ` Dmitry A. Kazakov
2007-10-08 10:32 ` Maciej Sobczak
2007-10-08 13:39 ` Maciej Sobczak
2007-10-08 15:10 ` Dmitry A. Kazakov
2007-10-08 20:40 ` Maciej Sobczak
2007-10-09 8:32 ` Dmitry A. Kazakov
2007-10-06 16:17 ` Matthew Heaney
2007-10-07 3:19 ` Randy Brukardt
2007-10-07 7:21 ` Pascal Obry
2007-10-07 7:49 ` Dmitry A. Kazakov
2007-10-07 16:41 ` Georg Bauhaus
2007-10-07 17:44 ` Simon Wright
2007-10-08 9:52 ` Georg Bauhaus
2007-10-08 10:42 ` Maciej Sobczak
2007-10-08 10:59 ` Georg Bauhaus
2007-10-08 11:07 ` Georg Bauhaus
2007-10-08 18:44 ` Pascal Obry
2007-10-08 15:21 ` Dmitry A. Kazakov
2007-10-08 18:28 ` Pascal Obry
2007-10-07 21:48 ` Maciej Sobczak
2007-10-07 22:27 ` Jeffrey R. Carter
2007-10-08 21:10 ` Simon Wright
2007-10-09 1:53 ` Randy Brukardt
2007-10-09 21:01 ` Simon Wright
2007-10-09 22:48 ` Randy Brukardt
2007-10-10 0:21 ` Jeffrey R. Carter
2007-10-10 4:57 ` Simon Wright
2007-10-10 7:46 ` Dmitry A. Kazakov
2007-10-03 5:20 ` Licensing again (was Re: GNAT for MS Visual Studio) Simon Wright
2007-10-03 2:03 ` GNAT for MS Visual Studio Steve
2007-09-28 14:48 ` Ed Falis
2007-09-29 2:32 ` Steve
2007-09-29 6:53 ` Vadim Godunko
2007-09-26 14:08 ` Dmitry A. Kazakov
2007-09-25 2:39 ` Randy Brukardt
2007-09-25 8:40 ` Michael Bode
2007-09-25 11:28 ` Markus E L
2007-09-26 10:19 ` Pascal Obry
2007-09-26 13:00 ` Michael Bode
2007-09-25 2:32 ` Randy Brukardt
2007-09-25 8:27 ` Stephen Leake
-- strict thread matches above, loose matches on Subject: below --
2007-10-12 22:03 Anatoly Chernyshev
2007-10-13 20:25 ` Maciej Sobczak
2007-10-14 10:37 ` Simon Wright
2007-10-14 11:26 ` Markus E L
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