From: Maciej Sobczak <see.my.homepage@gmail.com>
Subject: Re: Ada advocacy
Date: Wed, 28 Aug 2013 00:45:15 -0700 (PDT)
Date: 2013-08-28T00:45:15-07:00 [thread overview]
Message-ID: <246849b7-7a53-48a2-8f64-ff6dfb2086ce@googlegroups.com> (raw)
In-Reply-To: <op.w2g9br0kule2fv@cardamome>
> Why did you said "no big loss" about the rendez-vous? What's your known
> issues with rendez-vous? I never used concurrency a lot until now, so
> that's really a question, because I may (or may not, I still don't know)
> have to use it.
The biggest issue with rendez-vous is that it is (the server-side part of it) coupled by the rules of grammar to the top level of task body. That is, all your "accept" statements must be syntactically in the task body that declared appropriate entries.
It looks OK in the book examples, but since it makes code refactoring impossible, things can become ugly pretty quickly. This is kind of ironic, because rendez-vous is described as a high-level feature and high-level features normally add to code clarity. Here you have a high-level feature that is constrained by low-level grammar rules, hence the contradiction.
The "no big loss" statement is justified by the fact that rendez-vous does not offer anything particularly useful to what is already offered by protected objects.
--
Maciej Sobczak * http://www.msobczak.com * http://www.inspirel.com
next prev parent reply other threads:[~2013-08-28 7:45 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-20 12:54 Ada advocacy tonyg
2012-03-20 13:54 ` Ludovic Brenta
2012-03-20 14:39 ` Marc C
2012-03-20 15:13 ` Ludovic Brenta
2012-03-20 16:34 ` Yannick Duchêne (Hibou57)
2012-03-20 16:35 ` Yannick Duchêne (Hibou57)
2012-03-20 20:06 ` Shark8
2012-03-20 15:42 ` Georg Bauhaus
2012-03-20 18:31 ` Jeffrey Carter
2012-03-20 21:42 ` anon
2012-03-20 23:05 ` Shark8
2012-03-21 0:32 ` Shark8
2012-03-21 1:58 ` Robert Love
2012-03-21 5:37 ` Per Sandberg
2012-03-25 11:10 ` Peter C. Chapin
2012-03-21 8:59 ` anon
2013-06-17 23:42 ` johannes falcone
2013-06-18 0:09 ` tmoran
2013-06-18 0:14 ` Leo Brewin
2013-06-18 0:59 ` Jeffrey Carter
2013-06-19 19:22 ` johannes falcone
2013-06-19 19:34 ` Jacob Sparre Andersen
2013-06-19 20:16 ` Shark8
2013-06-19 19:36 ` Ludovic Brenta
2013-08-30 7:36 ` johannes falcone
2013-06-18 1:28 ` Dennis Lee Bieber
2013-06-18 5:55 ` Peter Brooks
2013-06-18 17:15 ` Robert A Duff
2013-06-18 17:43 ` Bill Findlay
2013-06-18 19:22 ` Robert A Duff
2013-06-18 19:30 ` Bill Findlay
2013-08-27 13:34 ` Yannick Duchêne (Hibou57)
2013-08-27 14:08 ` Bill Findlay
2013-08-27 14:13 ` Bill Findlay
2013-08-27 21:25 ` J-P. Rosen
2013-08-28 7:45 ` Dmitry A. Kazakov
2013-08-27 22:42 ` Dennis Lee Bieber
2013-08-28 7:45 ` Maciej Sobczak [this message]
2013-08-28 8:58 ` Georg Bauhaus
2013-08-28 9:42 ` Dmitry A. Kazakov
2013-08-28 11:42 ` G.B.
2013-08-28 11:59 ` Dmitry A. Kazakov
2013-08-28 12:49 ` G.B.
2013-08-28 14:07 ` Dmitry A. Kazakov
2013-08-28 15:06 ` Eryndlia Mavourneen
2013-08-28 17:30 ` Dmitry A. Kazakov
2013-08-28 16:44 ` Yannick Duchêne (Hibou57)
2013-08-28 17:25 ` Dmitry A. Kazakov
2013-08-28 23:33 ` Dennis Lee Bieber
2013-08-29 7:15 ` Dmitry A. Kazakov
2013-08-29 14:47 ` Yannick Duchêne (Hibou57)
2013-08-29 19:15 ` Dmitry A. Kazakov
2013-08-29 15:28 ` Robert A Duff
2013-08-29 21:43 ` Jeffrey R. Carter
2013-08-30 23:52 ` Yannick Duchêne (Hibou57)
2013-08-31 0:05 ` Jeffrey R. Carter
2013-08-31 1:42 ` Shark8
2013-08-31 2:57 ` Shark8
2013-08-31 9:00 ` Dirk Craeynest
2013-08-31 1:48 ` Randy Brukardt
2013-09-02 7:13 ` Egil H H
2013-09-02 8:41 ` G.B.
2013-09-02 16:37 ` Egil H H
2013-08-29 15:46 ` Robert A Duff
2013-08-30 4:47 ` Jeffrey R. Carter
2013-08-30 16:54 ` Robert A Duff
2013-08-30 17:49 ` Jeffrey R. Carter
2013-08-30 22:41 ` Robert A Duff
2013-08-31 0:02 ` Jeffrey R. Carter
2013-08-31 14:47 ` Robert A Duff
2013-06-19 7:29 ` nevillednz
2013-08-27 13:39 ` Yannick Duchêne (Hibou57)
2013-09-02 18:45 ` Martin
2013-06-17 23:39 ` johannes falcone
2012-03-21 10:44 ` tonyg
2013-06-18 0:07 ` johannes falcone
2012-03-23 16:13 ` KK6GM
2013-06-13 15:33 ` david
2013-06-13 15:34 ` david
-- strict thread matches above, loose matches on Subject: below --
2003-08-26 20:33 Ada Advocacy Stephane Richard
2003-08-26 21:20 ` Luke A. Guest
2003-08-26 22:28 ` Stephane Richard
2003-08-26 23:04 ` Luke A. Guest
2003-08-27 16:15 ` Warren W. Gay VE3WWG
2003-08-27 23:06 ` Luke A. Guest
2003-08-28 10:39 ` Preben Randhol
2003-08-26 23:55 ` Chad R. Meiners
2003-08-27 0:44 ` Anisimkov
2003-08-27 8:26 ` Dmitry A. Kazakov
2003-08-27 20:12 ` Wes Groleau
2003-08-27 23:09 ` Luke A. Guest
2003-08-29 16:13 ` Jon S. Anthony
2003-08-29 18:15 ` Luke A. Guest
2003-08-28 8:34 ` Dmitry A. Kazakov
2003-08-27 8:29 ` Luke A. Guest
2003-08-28 5:29 ` Dmitriy Anisimkov
2003-09-01 21:26 ` Dave Thompson
2003-08-27 6:56 ` David Holm
2003-08-27 16:00 ` Rod Chapman
2003-08-29 6:38 ` Adrian Hoe
2003-08-29 9:34 ` Stephane Richard
2003-09-01 5:45 ` Adrian Hoe
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