From: arnold@skeeve.com
To: tytso@mit.edu, douglas.mcilroy@dartmouth.edu
Cc: tuhs@tuhs.org
Subject: Re: [TUHS] Systematic approach to command-line interfaces
Date: Tue, 03 Aug 2021 01:19:19 -0600 [thread overview]
Message-ID: <202108030719.1737JJRc019869@freefriends.org> (raw)
In-Reply-To: <YQgIKtnNakqciILp@mit.edu>
"Theodore Ts'o" <tytso@mit.edu> wrote:
> It's certainly clear that some kind of primitive is needed to create
> new threads. An open question is whether if there exists some kind of
> "new thread" primitve plus either spawn(2) or some kind of "create a
> child process and then then frob like crazy using 'echo XXX >
> /proc/<pid>/<magic files>'" whether there still is a need for a
> fork(2) system call.
I haven't caught up yet in this thread. Apologies if this has been
discussed already.
The Plan 9 folks blazed this trail over 30 years ago with rfork, where
you specify what bits you wish to duplicate. I don't remember details
anymore, but I think it was pretty elegant. IIRC Around that time Rob Pike
said "Threads are the lack of an idea", meaning, if you think you need
threads, you haven't thought about the problem hard enough. (Apologies
to Rob if I am misremembering and/or misrepresenting.)
Arnold
next prev parent reply other threads:[~2021-08-03 7:20 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 2:42 Douglas McIlroy
2021-08-02 14:58 ` Theodore Ts'o
2021-08-02 18:15 ` Adam Thornton
2021-08-02 18:24 ` Warner Losh
2021-08-02 20:55 ` John Cowan
2021-08-02 21:06 ` Jon Steinhart
2021-08-02 21:25 ` Dan Cross
2021-08-02 21:59 ` Jon Steinhart
2021-08-02 22:33 ` John Cowan
2021-08-03 0:20 ` [TUHS] fork (Re: " Bakul Shah
2021-08-03 0:59 ` Adam Thornton
2021-08-03 1:20 ` Steve Nickolas
2021-08-03 0:21 ` [TUHS] " Bakul Shah
2021-08-03 1:49 ` Jon Steinhart
2021-08-03 3:21 ` Adam Thornton
2021-08-03 3:27 ` Bakul Shah
2021-08-03 3:51 ` Jon Steinhart
2021-08-03 7:19 ` arnold [this message]
2021-08-03 23:12 ` Andrew Warkentin
2021-08-04 15:04 ` Paul Winalski
-- strict thread matches above, loose matches on Subject: below --
2021-10-01 12:11 Paul Ruizendaal
2021-09-30 11:41 Douglas McIlroy
2021-09-29 18:07 Noel Chiappa
2021-09-29 19:04 ` Dan Cross
2021-09-29 19:12 ` Larry McVoy
2021-09-28 18:15 Noel Chiappa
2021-08-03 19:12 Douglas McIlroy
2021-08-03 15:01 Douglas McIlroy
2021-08-03 17:13 ` Tom Lyon via TUHS
2021-08-11 18:11 ` Tom Ivar Helbekkmo via TUHS
2021-08-11 21:24 ` Tom Lyon via TUHS
2021-07-31 16:47 Ron Young
2021-08-02 2:34 ` Jim Carpenter
2021-08-02 2:38 ` Ron Young
2021-07-31 16:27 Nelson H. F. Beebe
2021-07-31 12:25 Michael Siegel
2021-07-31 13:05 ` Dan Halbert
2021-07-31 14:21 ` Adam Thornton
2021-07-31 14:25 ` Adam Thornton
2021-07-31 15:45 ` Richard Salz
2021-07-31 16:03 ` Clem Cole
2021-07-31 16:06 ` Richard Salz
2021-07-31 16:21 ` Clem Cole
2021-07-31 16:17 ` Clem Cole
2021-07-31 16:30 ` Dan Cross
2021-07-31 15:56 ` Paul Winalski
2021-07-31 16:19 ` Dan Cross
2021-08-01 17:44 ` Chet Ramey
2021-08-01 21:53 ` Dan Cross
2021-08-01 23:21 ` Chet Ramey
2021-08-01 23:36 ` John Cowan
2021-08-01 23:49 ` Larry McVoy
2021-08-02 0:28 ` Larry McVoy
2021-08-01 23:58 ` Dan Cross
2021-08-02 0:29 ` Steve Nickolas
2021-08-02 0:13 ` Andrew Warkentin
2021-08-02 0:18 ` John Cowan
2021-08-02 0:54 ` Andrew Warkentin
2021-08-02 1:04 ` Dan Cross
2021-08-02 1:05 ` Theodore Ts'o
2021-08-02 2:10 ` Andrew Warkentin
2021-08-02 2:32 ` Bakul Shah
2021-08-02 17:33 ` Lars Brinkhoff
2021-09-28 17:46 ` Greg A. Woods
2021-09-28 18:10 ` Larry McVoy
2021-09-29 16:40 ` Greg A. Woods
2021-09-29 16:57 ` Larry McVoy
2021-09-30 17:31 ` Greg A. Woods
2021-09-29 23:10 ` Phil Budne
2021-08-02 17:37 ` Lars Brinkhoff
2021-08-02 18:52 ` Clem Cole
2021-08-02 20:59 ` John Cowan
2021-08-02 21:06 ` Al Kossow
2021-08-02 21:14 ` Clem Cole
2021-08-02 21:13 ` Clem Cole
2021-08-01 16:51 ` Michael Siegel
2021-08-01 17:31 ` Jon Steinhart
2021-07-31 16:41 ` Clem Cole
2021-07-31 17:41 ` John Cowan
2021-07-31 17:30 ` Anthony Martin
2021-07-31 17:46 ` John Cowan
2021-07-31 18:56 ` Michael Siegel
2021-07-31 19:41 ` Clem Cole
2021-07-31 21:30 ` Michael Siegel
2021-08-01 17:48 ` Chet Ramey
2021-08-01 19:23 ` Richard Salz
2021-08-01 23:26 ` Chet Ramey
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