From: adam@irvine.com (Adam Beneschan)
Subject: Re: Overriding discriminants perplexes GNAT 3.14p
Date: 20 Sep 2002 09:00:12 -0700
Date: 2002-09-20T16:00:12+00:00 [thread overview]
Message-ID: <b4682ab7.0209200800.6a4fdd11@posting.google.com> (raw)
In-Reply-To: amerh4$5b11r$2@ID-77047.news.dfncis.de
Dmitry A.Kazakov <mailbox@dmitry-kazakov.de> wrote in message news:<amerh4$5b11r$2@ID-77047.news.dfncis.de>...
> Adam Beneschan wrote:
> > I think GNAT's behavior is legitimate here. Protected entry calls and
> > external requeues start new "protected actions" on the target
> > protected object (9.5.3(8), 9.5.4(11)). Thus, when
> > Objects.Object1.Point1 is called, a new protected action is started on
> > Object1. When this requeues to Object2.Point1, a new protected action
> > is started on Object2; however, the protected action on Object1 does
> > not complete (AI95-00148).
>
> Really? 9.5.4(10) says explicitly (for an internal requeue) that the
> ongoing action continues., but following it 9.5.4(11) keeps silence about
> that. From which I would assume that the ongoing action is replaced by a
> new one. If not, then a task may simultaneously perform an unlimited number
> of protected actions! I see no sense in that, and moreover, it would make
> external requeues almost useless.
See http://www.ada-auth.org/cgi-bin/cvsweb.cgi/AIs/AI-00148.TXT?rev=1.2
for the official word on the matter.
-- Adam
next prev parent reply other threads:[~2002-09-20 16:00 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-19 2:32 Overriding discriminants perplexes GNAT 3.14p Dmitry A.Kazakov
2002-09-18 16:45 ` Stephen Leake
2002-09-19 21:34 ` Dmitry A.Kazakov
2002-09-19 15:51 ` Stephen Leake
2002-09-20 22:06 ` Dmitry A.Kazakov
2002-09-20 12:29 ` Stephen Leake
2002-09-22 8:43 ` Dmitry A.Kazakov
2002-09-22 13:32 ` Georg Bauhaus
2002-09-23 5:41 ` Dmitry A.Kazakov
2002-09-23 12:41 ` Georg Bauhaus
2002-09-24 1:38 ` Dmitry A.Kazakov
2002-09-23 15:33 ` Stephen Leake
2002-09-24 8:35 ` Dmitry A. Kazakov
2002-09-19 18:22 ` Adam Beneschan
2002-09-20 22:06 ` Dmitry A.Kazakov
2002-09-20 16:00 ` Adam Beneschan [this message]
2002-09-22 8:43 ` Dmitry A.Kazakov
2002-09-23 21:18 ` Adam Beneschan
2002-09-24 9:40 ` Dmitry A. Kazakov
2002-09-21 13:01 ` Simon Wright
2002-09-18 16:46 ` Mark Johnson
2002-09-19 21:34 ` Dmitry A.Kazakov
2002-09-19 16:17 ` Stephen Leake
2002-09-19 20:02 ` tmoran
2002-09-20 21:10 ` Dmitry A.Kazakov
2002-09-21 12:56 ` Simon Wright
2002-09-18 16:49 ` Frank J. Lhota
2002-09-19 21:34 ` Dmitry A.Kazakov
2002-09-18 17:17 ` Per Sandbergs
2002-09-19 8:51 ` Thierry Lelegard
-- strict thread matches above, loose matches on Subject: below --
2002-09-19 9:08 Grein, Christoph
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