From: "Albert D. Cahalan" <acahalan@cs.uml.edu>
To: jakob@unthought.net (Jakob Østergaard)
Cc: linux-kernel@alex.org.uk (Alex Bligh - linux-kernel),
viro@math.psu.edu (Alexander Viro),
moz@compsoc.man.ac.uk (John Levon),
linux-kernel@vger.kernel.org,
phillips@bonn-fries.net (Daniel Phillips),
tim@tjansen.de (Tim Jansen)
Subject: Re: PROPOSAL: dot-proc interface [was: /proc stuff]
Date: Sun, 4 Nov 2001 16:12:23 -0500 (EST) [thread overview]
Message-ID: <200111042112.fA4LCNR241720@saturn.cs.uml.edu> (raw)
In-Reply-To: <20011104204502.O14001@unthought.net> from "=?iso-8859-1?Q?Jakob_=D8stergaard?=" at Nov 04, 2001 08:45:02 PM
=?iso-8859-1?Q?Jak writes:
> Please tell me, is "1610612736" a 32-bit integer, a 64-bit integer, is
> it signed or unsigned ?
>
> I could even live with parsing ASCII, as long as there'd just be type
> information to go with the values.
You are looking for something called the registry. It's something
that was introduced with Windows 95. It's basically a filesystem
with typed files: char, int, string, string array, etc.
> These interfaces need to be "correct", not "mostly correct".
>
> Example: I make a symlink from "cat" to "c)(t" (sick example,
> but that doesn't change my point), and do a "./c)(t /proc/self/stat":
>
> [albatros:joe] $ ./c\)\(a /proc/self/stat
> 22482 (c)(a) R 22444 22482 22444 34816 22482 0 20 0 126 0 0 0 0 0 14 0 0 0 24933425 1654784 129 4294967295 134512640 134525684 3221223504 3221223112 1074798884 0 0 0 0 0 0 0 17 0
>
> Go parse that one ! What's the name of my applications ?
Funny you should mention that one. I wrote the code used by procps
to read this file. I love that file! The parentheses issue is just
a beauty wart. People rarely feel the urge to screw with raw numbers.
In all the other files, idiots like to: add headers, change the
spelling of field names, change the order, add spaces and random
punctuation, etc. Nothing is as stable and easy to use as the
/proc/self/stat file.
> If you want ASCII, we should at least have some approved parsing
> library to parse this into native-machine binary structures
No.
>> 2. Flag those entries which are sysctl mirrors as such
>> (perhaps in each /proc directory /proc/foo/bar/, a
>> /proc/foo/bar/ctl with them all in). Duplicate for the
>> time being rather than move. Make reading them (at
>> least those in the ctl directory) have a comment line
>> starting with a '#' at the top describing the format
>> (integer, boolean, string, whatever), what it does.
>> Ignore comment lines on write.
Now you are proposing to dink with the format. See above comments.
>> 3. Try and rearrange all the /proc entries this way, which
>> means sysctl can be implemented by a straight ASCII
>> write - nice and easy to parse files.
This is exactly what the sysctl command does.
> I'm not a big fan of huge re-arrangements. I do like the idea of providing
> a machine-readable version of /proc.
Linus clearly doesn't give a fuck about /proc performance.
That's his right, and you are welcome to patch your kernel to
have something better: http://lwn.net/2000/0420/a/atomicps.html
next prev parent reply other threads:[~2001-11-04 21:14 UTC|newest]
Thread overview: 258+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-01 10:32 [PATCH] 2.5 PROPOSAL: Replacement for current /proc of shit Rusty Russell
2001-11-01 10:42 ` Jeff Garzik
2001-11-01 16:49 ` Martin Dalecki
2001-11-01 17:06 ` Gábor Lénárt
2001-11-01 12:06 ` Tim Jansen
2001-11-01 18:34 ` James Simmons
2001-11-02 1:42 ` Rusty Russell
2001-11-02 1:56 ` Erik Andersen
2001-11-02 11:44 ` Padraig Brady
2001-11-02 9:11 ` Alexander Viro
2001-11-02 12:39 ` Martin Dalecki
2001-11-02 11:57 ` Alexander Viro
2001-11-02 13:55 ` Keith Owens
2001-11-02 15:08 ` Martin Dalecki
2001-11-04 5:36 ` Albert D. Cahalan
2001-11-02 12:46 ` Miquel van Smoorenburg
2001-11-02 2:20 ` Rusty Russell
2001-11-02 13:59 ` Tim Jansen
[not found] ` <20011103103106.7eb6098b.rusty@rustcorp.com.au>
2001-11-03 11:47 ` Tim Jansen
2001-11-03 23:44 ` Rusty Russell
2001-11-04 1:40 ` Daniel Phillips
2001-11-04 2:08 ` Jakob Østergaard
2001-11-04 12:30 ` Tim Jansen
2001-11-04 13:36 ` Daniel Kobras
2001-11-04 14:13 ` Tim Jansen
2001-11-04 15:33 ` PROPOSAL: dot-proc interface [was: /proc stuff] Jakob Østergaard
2001-11-04 16:05 ` Gábor Lénárt
2001-11-04 16:31 ` Daniel Phillips
2001-11-04 17:30 ` Jakob Østergaard
2001-11-04 16:45 ` Tim Jansen
2001-11-04 17:28 ` Daniel Phillips
2001-11-04 17:41 ` Jakob Østergaard
2001-11-04 17:54 ` SpaceWalker
2001-11-04 20:45 ` Albert D. Cahalan
2001-11-04 17:59 ` John Levon
2001-11-04 18:31 ` Jakob Østergaard
2001-11-04 18:40 ` Alexander Viro
2001-11-04 19:04 ` Jakob Østergaard
2001-11-04 19:24 ` Alex Bligh - linux-kernel
2001-11-04 19:45 ` Jakob Østergaard
2001-11-04 19:52 ` Alexander Viro
2001-11-04 20:06 ` Jakob Østergaard
2001-11-04 22:01 ` Daniel Phillips
2001-11-04 21:12 ` Albert D. Cahalan [this message]
2001-11-04 21:20 ` Jakob Østergaard
2001-11-04 21:42 ` Tim Jansen
2001-11-04 22:13 ` Albert D. Cahalan
2001-11-05 11:23 ` Martin Dalecki
2001-11-05 15:58 ` Alexander Viro
2001-11-05 18:30 ` Martin Dalecki
2001-11-05 23:00 ` Albert D. Cahalan
2001-11-06 13:47 ` Martin Dalecki
2001-11-06 17:13 ` Gerhard Mack
2001-11-05 16:38 ` Stephen Satchell
2001-11-05 18:39 ` Martin Dalecki
2001-11-05 18:28 ` Ben Greear
2001-11-05 18:40 ` Rik van Riel
2001-11-05 21:03 ` Tim Jansen
2001-11-05 21:58 ` Ben Greear
2001-11-05 22:51 ` Tim Jansen
2001-11-05 22:59 ` Erik Andersen
2001-11-05 23:35 ` Tim Jansen
2001-11-05 23:41 ` Alexander Viro
2001-11-06 13:49 ` Martin Dalecki
2001-11-06 19:49 ` dank
2001-11-06 22:22 ` Erik Andersen
2001-11-06 22:47 ` dank
2001-11-06 23:11 ` Erik Andersen
2001-11-06 23:39 ` Ricky Beam
2001-11-07 12:45 ` Remco Post
2001-11-07 1:06 ` George Greer
2001-11-05 19:58 ` Jonathan Lundell
2001-11-05 21:43 ` Stephen Satchell
2001-11-06 5:22 ` Ragnar Hojland Espinosa
2001-11-04 21:22 ` Alex Bligh - linux-kernel
2001-11-05 4:03 ` Stuart Young
2001-11-05 4:05 ` Alexander Viro
2001-11-05 4:55 ` Stuart Young
2001-11-05 16:32 ` SpaceWalker
2001-11-06 6:46 ` Jakob Østergaard
2001-11-04 19:29 ` Alexander Viro
2001-11-04 19:50 ` Jakob Østergaard
2001-11-04 20:01 ` Alexander Viro
2001-11-04 20:09 ` Jakob Østergaard
2001-11-06 7:23 ` Kai Henningsen
2001-11-06 14:00 ` Jakob Østergaard
2001-11-04 18:27 ` Tim Jansen
2001-11-04 18:35 ` Alexander Viro
2001-11-04 18:39 ` Jakob Østergaard
2001-11-07 1:20 ` Pavel Machek
2001-11-07 21:14 ` Rik van Riel
2000-01-01 0:13 ` Pavel Machek
2001-11-04 18:20 ` Tim Jansen
2001-11-04 18:30 ` Alexander Viro
2001-11-04 18:52 ` Jakob Østergaard
2001-11-04 19:18 ` Daniel Phillips
2001-11-04 21:41 ` Albert D. Cahalan
2001-11-05 11:06 ` Martin Dalecki
2001-11-05 10:28 ` Daniel Phillips
2001-11-05 22:46 ` Albert D. Cahalan
2001-11-06 0:54 ` Daniel Phillips
2001-11-06 1:11 ` Stephen Satchell
2001-11-04 18:46 ` Jakob Østergaard
2001-11-04 19:07 ` Linus Torvalds
2001-11-04 19:20 ` Jakob Østergaard
2001-11-04 19:32 ` Dave Jones
2001-11-04 19:52 ` Jakob Østergaard
2001-11-04 20:06 ` Alexander Viro
2001-11-04 20:11 ` Jakob Østergaard
2001-11-11 10:06 ` Kai Henningsen
2001-11-11 19:43 ` Jakob Østergaard
2001-11-12 13:43 ` Pascal Schmidt
2001-11-13 12:09 ` Jakob Østergaard
2001-11-13 14:41 ` Riley Williams
2001-11-04 22:09 ` Luigi Genoni
2001-11-04 17:48 ` Jakob Østergaard
2001-11-04 18:02 ` John Levon
2001-11-04 18:34 ` Tim Jansen
2001-11-04 18:59 ` Jakob Østergaard
2001-11-04 19:19 ` Tim Jansen
2001-11-04 19:24 ` Jakob Østergaard
2001-11-04 19:41 ` Tim Jansen
2001-11-04 19:55 ` Jakob Østergaard
2001-11-04 20:13 ` Tim Jansen
2001-11-04 20:11 ` Jakob Østergaard
2001-11-04 20:47 ` Alex Bligh - linux-kernel
2001-11-04 21:02 ` Jakob Østergaard
2001-11-04 22:53 ` Stephen Satchell
2001-11-05 11:04 ` zmwillow
2001-11-05 13:41 ` Petr Baudis
2001-11-05 20:49 ` Tim Jansen
2001-11-05 22:01 ` Ben Greear
[not found] ` <20011105223413.U11619@pasky.ji.cz>
[not found] ` <160rly-1tl3XUC@fmrl05.sul.t-online.com>
2001-11-05 22:07 ` Petr Baudis
2001-11-06 7:25 ` Jakob Østergaard
2001-11-06 8:21 ` Petr Baudis
2001-11-06 8:34 ` Alexander Viro
2001-11-06 13:43 ` Jakob Østergaard
2001-11-06 17:01 ` Petr Baudis
2001-11-05 19:55 ` PROPOSAL: kernfs (was: Re: PROPOSAL: dot-proc interface [was: /proc st Kai Henningsen
2001-11-06 18:56 ` PROPOSAL: /proc standards (was dot-proc interface [was: /proc stuff]) Stephen Satchell
2001-11-06 19:38 ` Ben Greear
2001-11-06 20:12 ` PROPOSAL: /proc standards (was dot-proc interface [was: /proc Erik Hensema
2001-11-06 20:58 ` Roy Sigurd Karlsbakk
2001-11-06 21:43 ` Ricky Beam
2001-11-06 22:14 ` Alexander Viro
2001-11-07 0:33 ` Alex Bligh - linux-kernel
2001-11-07 7:20 ` Albert D. Cahalan
2001-11-07 8:07 ` Alexander Viro
2001-11-07 17:24 ` Alex Bligh - linux-kernel
2001-11-07 17:22 ` Blue Lang
2001-11-07 19:21 ` Ricky Beam
2001-11-11 10:27 ` Kai Henningsen
2001-11-08 0:47 ` Albert D. Cahalan
2001-11-08 18:53 ` Alex Bligh - linux-kernel
2001-11-08 21:28 ` Ricky Beam
2001-11-09 5:15 ` Albert D. Cahalan
2001-11-19 19:22 ` bill davidsen
2001-11-07 0:13 ` Martin Dalecki
2001-11-07 0:40 ` Alex Bligh - linux-kernel
2001-11-07 1:10 ` Ricky Beam
[not found] ` <Pine.GSO.4.33.0111061947540.17287-100000@sweetums.bluetronic.ne t>
2001-11-07 1:17 ` Alex Bligh - linux-kernel
2001-11-07 11:32 ` Martin Dalecki
2001-11-07 12:35 ` Remco Post
2001-11-07 23:53 ` Albert D. Cahalan
2001-11-07 22:24 ` Paul P Komkoff Jr
2001-11-07 23:15 ` Phil Howard
2001-11-06 21:24 ` Rik van Riel
2001-11-06 21:45 ` Erik Hensema
2001-11-06 22:06 ` Tim Jansen
2001-11-06 22:28 ` Erik Andersen
2001-11-06 22:33 ` Jan-Benedict Glaw
2001-11-06 22:42 ` Erik Andersen
2001-11-06 22:49 ` Jan-Benedict Glaw
2001-11-06 22:53 ` Patrick Mochel
2001-11-06 22:52 ` Erik Andersen
2001-11-06 22:46 ` Ben Greear
2001-11-06 22:50 ` Jan-Benedict Glaw
2001-11-07 0:17 ` Martin Dalecki
2001-11-06 22:53 ` J . A . Magallon
2001-11-05 16:49 ` [PATCH] 2.5 PROPOSAL: Replacement for current /proc of shit Jonathan Lundell
2001-11-05 20:46 ` Tim Jansen
2001-11-05 23:04 ` Greg KH
2001-11-05 22:19 ` Tim Jansen
2001-11-05 0:12 ` Rusty Russell
2001-11-05 3:34 ` Daniel Phillips
2001-11-05 22:48 ` Rusty Russell
2001-11-06 10:25 ` Daniel Phillips
2001-11-06 15:46 ` Theodore Tso
2001-11-07 23:35 ` Rusty Russell
[not found] <Pine.LNX.4.33.0111041141100.14150-100000@penguin.transmeta.com>
2001-11-04 19:53 ` PROPOSAL: dot-proc interface [was: /proc stuff] Daniel Phillips
2001-11-04 23:06 Craig Thrall
2001-11-04 23:39 ` Jakob Østergaard
[not found] <20011104214229Z17052-23341+37@humbolt.nl.linux.org>
2001-11-04 23:42 ` Alexander Viro
2001-11-05 0:10 ` Daniel Phillips
2002-01-24 17:42 RFC: booleans and the kernel Jeff Garzik
2002-01-24 18:22 ` Anton Altaparmakov
2002-01-24 18:33 ` Arnaldo Carvalho de Melo
2002-01-24 19:28 ` H. Peter Anvin
2002-01-24 19:34 ` Arnaldo Carvalho de Melo
2002-01-24 19:43 ` H. Peter Anvin
2002-01-24 19:47 ` Arnaldo Carvalho de Melo
2002-01-24 19:46 ` Ingo Oeser
2002-01-24 19:52 ` Oliver Xymoron
2002-01-24 20:03 ` Jeff Garzik
2002-01-24 20:06 ` Oliver Xymoron
2002-01-24 20:14 ` Jeff Garzik
2002-01-24 20:23 ` Alexander Viro
2002-01-24 20:25 ` Oliver Xymoron
2002-01-24 20:35 ` John Levon
2002-01-24 20:15 ` Alexander Viro
2002-01-24 20:21 ` Richard B. Johnson
2002-01-24 20:39 ` Oliver Xymoron
2002-01-24 21:55 ` Richard B. Johnson
2002-01-24 21:57 ` Jeff Garzik
2002-01-24 22:05 ` H. Peter Anvin
2002-01-24 22:13 ` Robert Love
2002-01-24 22:33 ` Xavier Bestel
2002-01-24 22:53 ` Xavier Bestel
2002-01-24 22:59 ` Robert Love
2002-01-24 23:27 ` Xavier Bestel
2002-01-25 6:13 ` Alexander Viro
2002-01-25 8:00 ` Momchil Velikov
2002-01-25 10:51 ` Xavier Bestel
2002-01-25 16:11 ` Olivier Galibert
2002-01-26 7:22 ` Timothy Covell
2002-01-25 7:48 ` Alexander Viro
2002-01-25 23:49 ` J.A. Magallon
2002-01-27 11:27 ` Kai Henningsen
2002-01-25 23:09 ` Timothy Covell
2002-01-25 1:16 ` John Levon
2002-01-25 22:47 ` Timothy Covell
2002-01-25 21:24 ` Timothy Covell
2002-01-24 21:31 ` Oliver Xymoron
2002-01-24 22:19 ` Robert Love
2002-01-24 22:38 ` Robert Love
2002-01-25 22:44 ` Timothy Covell
2002-01-25 3:52 ` Ragnar Hojland Espinosa
2002-01-25 20:39 ` Calin A. Culianu
2002-01-25 23:07 ` Rick Stevens
2002-01-25 19:02 ` Kai Henningsen
2002-01-27 1:33 ` Timothy Covell
2002-01-26 2:56 ` Jamie Lokier
2002-01-27 11:18 ` Kai Henningsen
2002-01-25 22:30 ` Timothy Covell
2002-01-24 22:36 ` Alexander Viro
2002-01-25 6:36 ` Kai Henningsen
[not found] ` <200201250900.g0P8xoL10082@home.ashavan.org.>
2002-01-29 6:36 ` Nix N. Nix
2002-01-25 21:43 ` Timothy Covell
2002-01-24 21:50 ` Oliver Xymoron
2002-01-24 22:21 ` H. Peter Anvin
2002-01-25 15:07 ` Werner Almesberger
2002-01-25 15:21 ` Jakub Jelinek
2002-01-25 16:45 ` H. Peter Anvin
2002-01-25 11:07 ` Helge Hafting
2002-01-24 22:33 ` Chris Wedgwood
2002-01-24 22:44 ` H. Peter Anvin
2002-01-26 10:22 ` Chris Wedgwood
2002-01-25 2:00 ` Erik Andersen
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