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From: Robert Pluim <rpluim@gmail.com>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: Pip Cet <pipcet@protonmail.com>,  Eli Zaretskii <eliz@gnu.org>,
	emacs-devel@gnu.org,  ofv@wanadoo.es
Subject: Re: Gap buffer problem?
Date: Thu, 12 Dec 2024 09:55:54 +0100	[thread overview]
Message-ID: <87frmt46w5.fsf@gmail.com> (raw)
In-Reply-To: <m2ed2eox34.fsf@gmail.com> ("Gerd Möllmann"'s message of "Wed, 11 Dec 2024 20:09:51 +0100")

>>>>> On Wed, 11 Dec 2024 20:09:51 +0100, Gerd Möllmann <gerd.moellmann@gmail.com> said:

    Gerd> I may also be misunderstanding, but in principle, I agree with Eli.

    Gerd> Say we have processes A and B communicating with each other. Take the
    Gerd> code of A and move it to B, possibly with some automatic transformations
    Gerd> if A and B have the same source code. Make two threads in the result
    Gerd> process for A and B. Replace inter-process message passing with
    Gerd> inter-thread message passing. Initial message may be "fork" transferring
    Gerd> the world of thread A to thread B.

Your first sentence is doing a lot of lifting there :-)

In the two process situation, you automatically have two copies of
every object, so you donʼt need to ensure that the processes are not
stepping on each other. In the two thread situation you donʼt have
that guarantee, unless you have *first* ensured (via locking, or COW,
etc) that the object states are consistent. Once youʼve done that,
then you can use messaging to keep things synchronized (or again,
locking etc)

Robert
-- 



  reply	other threads:[~2024-12-12  8:55 UTC|newest]

Thread overview: 148+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.39.1723910423.12184.emacs-devel@gnu.org>
2024-08-17 22:49 ` Emacs-devel Digest, Vol 246, Issue 17 ali_gnu2
2024-08-18  0:10   ` Po Lu
2024-08-18  0:19     ` Po Lu
2024-08-18  1:15     ` Solaris dldump (was: Pure space) ali_gnu2
2024-08-18  1:25       ` Solaris dldump Po Lu
2024-08-18 22:27         ` Stefan Kangas
2024-08-18 23:56           ` Po Lu
2024-08-19 11:18             ` Eli Zaretskii
2024-08-19 12:09               ` Po Lu
2024-08-19 12:50                 ` Eli Zaretskii
2024-08-19 11:44             ` Pip Cet
2024-08-19 11:57               ` Po Lu
2024-08-19 12:10                 ` Pip Cet
2024-08-19 12:55                   ` Eli Zaretskii
2024-08-19 13:46                     ` Pip Cet
2024-08-19 14:39                       ` Eli Zaretskii
2024-08-19 15:26                         ` Corwin Brust
2024-08-19 15:31                           ` Corwin Brust
2024-08-19 20:51                       ` Stefan Kangas
2024-08-19 20:35             ` Stefan Kangas
2024-12-08 12:17     ` pdumper on Solaris 10 Pip Cet via Emacs development discussions.
2024-12-08 13:05       ` Eli Zaretskii
2024-12-08 13:52         ` Pip Cet via Emacs development discussions.
2024-12-08 14:52           ` Eli Zaretskii
2024-12-08 16:17             ` Pip Cet via Emacs development discussions.
2024-12-08 16:49               ` Eli Zaretskii
2024-12-08 17:37                 ` Pip Cet via Emacs development discussions.
2024-12-08 18:41                   ` Eli Zaretskii
2024-12-08 19:15                     ` Gerd Möllmann
2024-12-08 20:38                       ` Eli Zaretskii
2024-12-09  3:09                         ` Gerd Möllmann
2024-12-09  3:32                           ` Eli Zaretskii
2024-12-09  3:43                             ` Gerd Möllmann
2024-12-09  4:53                               ` Stefan Kangas
2024-12-09  5:26                                 ` Gerd Möllmann
2024-12-09 13:58                                 ` Eli Zaretskii
2024-12-10  0:02                                   ` Po Lu
2024-12-09  9:56                           ` Pip Cet via Emacs development discussions.
2024-12-10  0:04                             ` Po Lu
2024-12-10  3:34                               ` Eli Zaretskii
2024-12-11  1:13                                 ` Po Lu
2024-12-11 11:29                                   ` Pip Cet via Emacs development discussions.
2024-12-09  4:59                     ` Stefan Kangas
2024-12-09 14:39                       ` Eli Zaretskii
2024-12-09 21:06                         ` Merging MPS a.k.a. scratch/igc, yet again Stefan Kangas
2024-12-09 21:49                           ` Óscar Fuentes
2024-12-10  4:17                             ` Xiyue Deng
2024-12-10  4:26                               ` Sean Whitton
2024-12-10  4:42                               ` chad
2024-12-10 13:10                               ` Óscar Fuentes
2024-12-10 15:10                                 ` Pip Cet via Emacs development discussions.
2024-12-10 15:37                                   ` Óscar Fuentes
2024-12-10 15:47                                     ` Pip Cet via Emacs development discussions.
2024-12-10 17:16                                     ` Eli Zaretskii
2024-12-12  4:37                                   ` Xiyue Deng
2024-12-19 16:02                                   ` Gregor Zattler
2024-12-19 17:32                                     ` Pip Cet via Emacs development discussions.
2024-12-19 18:12                                       ` Gerd Möllmann
2024-12-19 18:27                                         ` Eli Zaretskii
2024-12-19 18:39                                           ` Gerd Möllmann
2024-12-19 19:15                                         ` Pip Cet via Emacs development discussions.
2024-12-19 19:57                                           ` Gerd Möllmann
2024-12-20  6:39                                             ` Eli Zaretskii
2024-12-20  9:27                                       ` Gregor Zattler
2024-12-10 13:20                               ` Eli Zaretskii
2024-12-10 14:46                               ` Pip Cet via Emacs development discussions.
2024-12-10 13:09                             ` Eli Zaretskii
2024-12-10 13:20                               ` Óscar Fuentes
2024-12-10 14:41                                 ` Eli Zaretskii
2024-12-09 23:13                           ` chad
2024-12-10 12:41                           ` Eli Zaretskii
2024-12-10  0:09                         ` pdumper on Solaris 10 Stefan Kangas
2024-12-10 12:59                           ` Eli Zaretskii
2024-12-10 13:39                             ` Óscar Fuentes
2024-12-10 14:39                               ` Eli Zaretskii
2024-12-10 15:21                                 ` Óscar Fuentes
2024-12-10 16:39                                   ` Eli Zaretskii
2024-12-10 15:38                               ` Pip Cet via Emacs development discussions.
2024-12-10 16:04                                 ` Óscar Fuentes
2024-12-10 17:23                                   ` Eli Zaretskii
2024-12-11  5:27                                 ` Gap buffer problem? Gerd Möllmann
2024-12-11  8:50                                   ` Pip Cet via Emacs development discussions.
2024-12-11  9:35                                     ` Gerd Möllmann
2024-12-11 11:50                                       ` Pip Cet via Emacs development discussions.
2024-12-11 13:22                                         ` Gerd Möllmann
2024-12-11 14:53                                           ` Pip Cet via Emacs development discussions.
2024-12-11 15:33                                             ` Gerd Möllmann
2024-12-11 16:58                                               ` Eli Zaretskii
2024-12-11 17:13                                                 ` Gerd Möllmann
2024-12-11 17:45                                                   ` Robert Pluim
2024-12-11 18:11                                                     ` Gerd Möllmann
2024-12-11 19:08                                                     ` Eli Zaretskii
2024-12-11 17:41                                                 ` Pip Cet via Emacs development discussions.
2024-12-11 19:04                                                   ` Eli Zaretskii
2024-12-11 19:54                                                     ` Pip Cet via Emacs development discussions.
2024-12-11 20:26                                                       ` Eli Zaretskii
2024-12-11 22:07                                                       ` Dmitry Gutov
2024-12-11 19:09                                                   ` Gerd Möllmann
2024-12-12  8:55                                                     ` Robert Pluim [this message]
2024-12-12 10:14                                                       ` Gerd Möllmann
2024-12-11 12:27                                       ` Pip Cet via Emacs development discussions.
2024-12-11 13:27                                         ` Gerd Möllmann
2024-12-11 15:06                                           ` Marcus Harnisch
2024-12-11 22:11                                             ` Dmitry Gutov
2024-12-12  3:49                                               ` Gerd Möllmann
2024-12-12 19:07                                                 ` Dmitry Gutov
2024-12-12 19:30                                                   ` Eli Zaretskii
2024-12-12 19:40                                                   ` Gerd Möllmann
2024-12-12  6:01                                               ` Eli Zaretskii
2024-12-11 14:22                                   ` Eli Zaretskii
2024-12-11 15:51                                     ` Gerd Möllmann
2024-12-11 17:06                                       ` Eli Zaretskii
2024-12-11 17:15                                         ` Gerd Möllmann
2024-12-10 18:13                               ` pdumper on Solaris 10 Gerd Möllmann
2024-12-10 15:23                             ` Pip Cet via Emacs development discussions.
2024-12-10 17:08                               ` Eli Zaretskii
2024-12-10 18:03                                 ` Gerd Möllmann
2024-12-10 19:34                                   ` Pip Cet via Emacs development discussions.
2024-12-10 19:59                                     ` Gerd Möllmann
2024-12-10 20:17                                       ` Pip Cet via Emacs development discussions.
2024-12-10 20:34                                         ` Gerd Möllmann
2024-12-11 14:13                                   ` Pip Cet via Emacs development discussions.
2024-12-11 17:43                                     ` Eli Zaretskii
2024-12-14 14:30                                     ` Eli Zaretskii
2024-12-15 10:55                                       ` Pip Cet via Emacs development discussions.
2024-12-15 11:13                                         ` Eli Zaretskii
2024-12-15 12:09                                           ` Pip Cet via Emacs development discussions.
2024-12-15 12:52                                             ` Eli Zaretskii
2024-12-15 19:54                                             ` John ff
2024-12-17 19:10                                           ` Paul Eggert
2024-12-17 19:43                                             ` Pip Cet via Emacs development discussions.
2024-12-17 20:00                                               ` Paul Eggert
2024-12-17 20:19                                             ` Eli Zaretskii
2024-12-17 21:14                                               ` Paul Eggert
2024-12-09 16:21                       ` Pip Cet via Emacs development discussions.
2024-12-17 13:12                     ` Pip Cet via Emacs development discussions.
2024-12-17 14:16                       ` Eli Zaretskii
2024-12-18  0:55                       ` Po Lu
2024-12-18  9:24                         ` Pip Cet via Emacs development discussions.
2024-12-08 18:47                 ` Pip Cet via Emacs development discussions.
2024-12-09  1:13                 ` Po Lu
2024-12-09  1:08           ` Po Lu
2024-12-09  0:58       ` Po Lu
2024-12-09  3:28         ` Eli Zaretskii
2024-12-09  1:01       ` Po Lu
2024-12-09 13:11         ` Pip Cet via Emacs development discussions.
2024-12-12 23:40 Gap buffer problem? arthur miller
2024-12-13  3:19 ` Gerd Möllmann

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