From: Kai Grossjohann <kai@emptydomain.de>
Subject: Re: Are there plans for a multi-threaded Emacs?
Date: Sun, 30 Nov 2003 16:36:18 +0000 [thread overview]
Message-ID: <87ekvpx18d.fsf@emptyhost.emptydomain.de> (raw)
In-Reply-To: buor807d3dg.fsf@mcsss2.ucom.lsi.nec.co.jp
Miles Bader <miles@lsi.nec.co.jp> writes:
> Consider a simple bit of elisp code: (setq GLOBAL (cons 'x GLOBAL))
> In a pre-emptively threaded emacs, another thread could run between
> accessing GLOBAL and setting it. Whoops.
Well, I don't know a lot about threading, but Java, at least, has the
same problem: you need to synchronize access to a variable to prevent
such things from happening. By default, synchronized access is turned
off.
So if all of what is now in Emacs continues to run in a single thread,
and you just provide a function to create a new thread and run stuff
in that new thread, then it would be the responsibility of the people
creating threads to make sure that they don't step on each other's
toes.
Then the remaining problem is that possibly a lot of functions cannot
be safely used because they access global variables. But that is just
something that people will have to live with, and maybe it will get
better over time. I think that it will be good enough at least for
some packages to do part of their work in the background.
What do people think? Maybe I missed something obvious...
Kai
next prev parent reply other threads:[~2003-11-30 16:36 UTC|newest]
Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-16 21:46 Are there plans for a multi-threaded Emacs? Frank Schmitt
2003-11-17 0:49 ` Alex Schroeder
2003-11-17 4:06 ` Dhruva Krishnamurthy
2003-11-17 4:29 ` Miles Bader
2003-11-30 16:36 ` Kai Grossjohann [this message]
2003-11-30 18:01 ` Vinicius Jose Latorre
2003-11-30 18:39 ` Kai Grossjohann
2003-11-30 18:12 ` Benjamin Riefenstahl
2003-11-30 19:40 ` Nic Ferrier
2003-12-01 16:04 ` Ted Zlatanov
2003-12-02 14:45 ` Ted Lemon
2003-12-02 15:48 ` Per Abrahamsen
2003-12-02 17:18 ` David Kastrup
2003-12-03 12:38 ` Per Abrahamsen
2003-12-02 17:27 ` Stefan Monnier
2003-12-02 18:53 ` Simon Josefsson
2003-12-03 13:03 ` Per Abrahamsen
2003-12-02 17:44 ` Ted Zlatanov
2003-12-03 17:16 ` Richard Stallman
2003-12-03 17:58 ` Ted Zlatanov
2003-12-03 23:38 ` Martin Stjernholm
2003-12-04 13:05 ` Ted Zlatanov
2003-12-04 14:07 ` David Kastrup
2003-12-04 14:58 ` Nic Ferrier
2003-12-04 15:44 ` David Kastrup
2003-12-04 16:17 ` Kim F. Storm
2003-12-04 15:58 ` Nic Ferrier
2003-12-04 16:26 ` non-blocking sockets (was Re: Are there plans for a multi-threaded Emacs?) Nic Ferrier
2003-12-05 11:35 ` Kim F. Storm
2003-12-04 19:55 ` Are there plans for a multi-threaded Emacs? Ted Zlatanov
2003-12-04 20:30 ` Stefan Monnier
2003-12-04 20:58 ` Ted Zlatanov
2003-12-04 22:49 ` Stefan Monnier
2003-12-05 12:17 ` Ted Zlatanov
2003-12-05 13:06 ` Thien-Thi Nguyen
2003-12-05 14:44 ` David Kastrup
2003-12-07 23:55 ` Stefan Monnier
2003-12-08 16:54 ` Ted Zlatanov
2003-12-08 17:09 ` David Kastrup
2003-12-08 18:10 ` Ted Zlatanov
2003-12-08 22:02 ` Martin Stjernholm
2003-12-08 18:25 ` What's the problem? (Was: Are there plans for a multi-threaded Emacs?) Luke Gorrie
2003-12-08 19:56 ` Ted Zlatanov
2003-12-08 20:56 ` David Kastrup
2003-12-08 22:09 ` Martin Stjernholm
2003-12-08 21:01 ` Stefan Monnier
2003-12-08 19:57 ` What's the problem? Simon Josefsson
2003-12-09 23:45 ` Juri Linkov
2003-12-10 0:58 ` Simon Josefsson
2003-12-10 4:35 ` Miles Bader
2003-12-10 5:38 ` Simon Josefsson
2003-12-10 5:51 ` Miles Bader
2003-12-10 6:34 ` Simon Josefsson
2003-12-10 7:19 ` Miles Bader
2003-12-11 14:12 ` Stefan Monnier
2003-12-11 23:09 ` Miles Bader
2003-12-12 23:55 ` Richard Stallman
2003-12-13 16:11 ` Eli Zaretskii
2003-12-13 17:29 ` Jan D.
2003-12-13 17:35 ` David Kastrup
2003-12-14 6:17 ` Eli Zaretskii
2003-12-14 11:55 ` David Kastrup
2003-12-14 14:27 ` Eli Zaretskii
2003-12-14 10:18 ` Richard Stallman
2003-12-10 8:18 ` Eli Zaretskii
2003-12-11 14:45 ` Richard Stallman
2003-12-10 15:36 ` Ted Zlatanov
2003-12-11 1:46 ` Miles Bader
2003-12-12 23:54 ` Richard Stallman
2003-12-11 18:39 ` Ted Zlatanov
2003-12-11 18:48 ` Ted Zlatanov
2003-12-12 3:27 ` Luke A. Olbrish
2003-12-12 3:57 ` Miles Bader
2003-12-13 15:17 ` Richard Stallman
2003-12-13 4:08 ` Miles Bader
2003-12-13 23:14 ` Richard Stallman
2003-12-14 13:12 ` Emacs kill buffer Camm Maguire
2003-12-09 19:28 ` What's the problem? (Was: Are there plans for a multi-threaded Emacs?) Ted Zlatanov
2003-12-09 22:02 ` David Kastrup
2003-12-10 0:13 ` Stefan Monnier
2003-12-10 1:41 ` David Kastrup
2003-12-10 2:49 ` Stefan Monnier
2003-12-12 0:44 ` Martin Stjernholm
2003-12-10 0:45 ` Martin Stjernholm
2003-12-10 2:55 ` Stefan Monnier
2003-12-09 19:32 ` Ted Zlatanov
2003-12-09 22:13 ` Stefan Monnier
2003-12-10 15:16 ` Ted Zlatanov
[not found] ` <E1AUS6B-0006KH-Hq@fencepost.gnu.org>
[not found] ` <4ny8tjryy8.fsf@collins.bwh.harvard.edu>
[not found] ` <4nn09xm68c.fsf@collins.bwh.harvard.edu>
2003-12-13 23:15 ` What's the problem? Richard Stallman
2003-12-14 3:21 ` Martin Stjernholm
2003-12-05 8:58 ` Are there plans for a multi-threaded Emacs? Thien-Thi Nguyen
2003-12-05 11:58 ` Ted Zlatanov
2003-12-05 12:12 ` Ted Zlatanov
2003-12-05 20:37 ` Luke A. Olbrish
2003-12-05 21:45 ` Ted Zlatanov
2003-12-08 0:10 ` Stefan Monnier
2003-12-08 1:26 ` Luke A. Olbrish
2003-12-04 17:22 ` Martin Stjernholm
2003-12-04 18:01 ` David Kastrup
2003-12-04 18:31 ` Martin Stjernholm
2003-12-04 19:26 ` David Kastrup
2003-12-04 22:05 ` Martin Stjernholm
2003-12-04 20:18 ` Ted Zlatanov
2003-12-04 23:00 ` Martin Stjernholm
2003-12-05 12:06 ` Ted Zlatanov
2003-12-05 13:16 ` Martin Stjernholm
2003-12-05 21:30 ` Ted Zlatanov
2003-12-05 14:46 ` David Kastrup
2003-12-05 15:07 ` Martin Stjernholm
2003-12-05 13:56 ` Benjamin Riefenstahl
2003-12-05 21:33 ` non-blocking auto-save (was: Are there plans for a multi-threaded Emacs?) Ted Zlatanov
2003-12-03 20:01 ` Are there plans for a multi-threaded Emacs? Nic Ferrier
2003-12-03 20:29 ` Stefan Monnier
2003-12-03 21:42 ` Robert J. Chassell
2003-12-04 7:33 ` Richard Stallman
2003-12-04 15:37 ` Stefan Monnier
2003-12-04 18:06 ` Thien-Thi Nguyen
2003-12-04 7:33 ` Richard Stallman
2003-12-04 13:14 ` Ted Zlatanov
2003-12-04 15:41 ` Stefan Monnier
2003-12-06 20:58 ` Kai Grossjohann
2003-12-07 0:15 ` Thien-Thi Nguyen
2003-12-07 14:52 ` Kai Grossjohann
2003-12-07 16:58 ` Thien-Thi Nguyen
2003-12-07 4:16 ` Martin Stjernholm
2003-12-07 14:53 ` Kai Grossjohann
2003-12-07 23:00 ` Martin Stjernholm
2003-11-17 19:31 ` Richard Stallman
2003-11-17 22:53 ` David Masterson
2003-11-18 5:57 ` Miles Bader
2003-11-20 19:19 ` David Masterson
2003-11-22 21:19 ` Richard Stallman
2003-11-18 6:52 ` John Wiegley
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