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From: Eris Discordia <eris.discordia@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Do we have a catalog of 9P servers?
Date: Fri, 14 Nov 2008 16:43:41 +0000	[thread overview]
Message-ID: <2EE8FD4C769413B8C0709CC5@[192.168.1.2]> (raw)
In-Reply-To: <b4fd70e2322ffaf581d4c430c8af83ef@9grid.es>

> Hiding the details of the underlying resources is one of the
> functions/features of the OS, isn't it?

Bjarne Stroustrup likes to call that "data abstraction and encapsulation;"
in a different context. But the essence of it is the same. Operational
details have to be "hidden," functional ones not. You don't want your OS to
"abstract" your latest and best hardware's capabilities by dumbing it down
to 80286. You also don't want your OS to generalize at the cost of fitting
all sorts of resources into one model--it can't be done.

--On Thursday, November 13, 2008 3:25 PM +0100 gdiaz@9grid.es wrote:

> Hola,
>
> Hiding the details of the underlying resources is one of the
> functions/features of the OS, isn't it?
>
> slds.
>
> gabi
>
> -- eris.discordia@gmail.com wrote:
>>
>>> you of course know that the big difference in unix and other
>>> systems of the day was that files did not have type. this allowed
>>> a tools-based approach which was popular for many years.
>>
>> Not that type of "types." I gave an example (which Charles Forsyth found
>> to  be a bad one) to set the types of "types" apart. I mean "types" as
>> in named  pipes ("special" files) versus regular files. In my experience
>> which is  limited to "modern" UNIX clones, i.e. Linux and *BSD, you can
>> distinguish  between a number of file "types" and decide what to do
>> accordingly. You can  tell a directory, from a (character or block)
>> device, from a link, from a  regular file. These same "types" could, and
>> have been, be used to represent  some details of the underlying resource.
>>
>> --On Wednesday, November 12, 2008 6:11 PM -0500 erik quanstrom
>> <quanstro@coraid.com> wrote:
>>
>>>> Why shouldn't there be file "types" to
>>>> help better represent the details of an underlying resource?
>>>
>>> you of course know that the big difference in unix and other
>>> systems of the day was that files did not have type. this allowed
>>> a tools-based approach which was popular for many years.
>>>
>>> - erik
>>
>>
>>
>>
>>
>>
>
>







  reply	other threads:[~2008-11-14 16:43 UTC|newest]

Thread overview: 198+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-13 14:25 gdiaz
2008-11-14 16:43 ` Eris Discordia [this message]
2008-11-14 17:00   ` erik quanstrom
  -- strict thread matches above, loose matches on Subject: below --
2008-11-21  0:12 Eris Discordia
2008-11-21  0:42 ` erik quanstrom
2008-11-21  7:57   ` Eris Discordia
2008-11-20 22:28 Eris Discordia
2008-11-20 22:42 ` erik quanstrom
2008-11-20 21:35 Eris Discordia
2008-11-19 18:31 Eris Discordia
2008-11-19 20:08 ` Anant Narayanan
2008-11-20  0:00   ` Eris Discordia
2008-11-20  4:55     ` blstuart
2008-11-20  7:44       ` Eris Discordia
2008-11-20 17:34         ` Brian L. Stuart
2008-11-20 18:30           ` akumar
2008-11-20 18:36             ` erik quanstrom
2008-11-20 19:20               ` Brian L. Stuart
2008-11-17  8:42 Eris Discordia
2008-11-17  7:57 Eris Discordia
2008-11-16 18:30 Eris Discordia
2008-11-16 18:08 Eris Discordia
2008-11-16 17:19 Eris Discordia
2008-11-16 16:58 Eris Discordia
2008-11-16 17:17 ` erik quanstrom
2008-11-16 18:01   ` ron minnich
     [not found] <96BA4878DB039F3DAE38CCF2@192.168.1.2>
2008-11-16 15:09 ` sqweek
2008-11-16 17:41   ` Charles Forsyth
2008-11-16 11:39 Eris Discordia
2008-11-16  7:24 Eris Discordia
2008-11-17 10:20 ` Dave Eckhardt
2008-11-17 14:01   ` Eris Discordia
2008-11-17 16:50     ` Dave Eckhardt
2008-11-17 19:45       ` Eris Discordia
     [not found] <DBCC6BB0C82C348357A14A53@192.168.1.2>
2008-11-15 11:49 ` Sergey Zhilkin
2008-11-16  4:31 ` Iruata Souza
     [not found] <FB6D5E99B294E50B901E8872@192.168.1.2>
2008-11-14 18:21 ` Tom Lieber
2008-11-14 18:59   ` erik quanstrom
2008-11-16  2:45 ` sqweek
     [not found] <906EC091083FF0C3C35F51A9@192.168.1.2>
2008-11-16  0:15 ` Felipe Bichued
2008-11-15 22:07 Eris Discordia
2008-11-16  5:27 ` Roman Shaposhnik
2008-11-16  6:19   ` Eris Discordia
2008-11-15 11:21 Eris Discordia
2008-11-15 13:38 ` Gabriel Diaz Lopez de la Llave
2008-11-15 15:30   ` hiro
2008-11-15 20:01 ` Roman Shaposhnik
2008-11-15 22:13   ` Micah Stetson
2008-11-16  5:47     ` Roman Shaposhnik
2008-11-16 19:36       ` Micah Stetson
2008-11-16  6:27     ` Eris Discordia
     [not found]     ` <1282469A8843837F996E64E1@192.168.1.2>
2008-11-16  6:57       ` andrey mirtchovski
2008-11-16 11:45         ` Eris Discordia
     [not found]         ` <D6FDC9E2D78F88C07963DBE5@192.168.1.2>
2008-11-16 12:49           ` hiro
2008-11-16 16:15             ` Eris Discordia
2008-11-16 17:38               ` lucio
2008-11-16 13:25           ` Uriel
2008-11-16 19:46       ` Micah Stetson
2008-11-16 21:24         ` Eris Discordia
2008-11-16 21:52           ` erik quanstrom
2008-11-19  1:59           ` Nathaniel W Filardo
2008-11-20  2:35             ` erik quanstrom
     [not found]         ` <D0E4FEAEC0D3FD307DE41383@192.168.1.2>
2008-11-17  5:12           ` Micah Stetson
2008-11-14 17:29 Eris Discordia
2008-11-14 16:39 Eris Discordia
     [not found] <7D122EF9133395AC4DEA0396@192.168.1.2>
2008-11-13 16:55 ` sqweek
2008-11-13 17:28   ` Brian L. Stuart
2008-11-15  4:12   ` Roman Shaposhnik
2008-11-12 21:19 Eris Discordia
2008-11-12 23:11 ` erik quanstrom
2008-11-12 23:51   ` Bruce Ellis
2008-11-13  0:35     ` akumar
2008-11-13 11:58   ` Eris Discordia
2008-11-13 14:17     ` erik quanstrom
2008-11-13 16:22       ` Iruata Souza
2008-11-12 19:08 erik quanstrom
2008-11-12 13:23 Eris Discordia
2008-11-12 14:02 ` Charles Forsyth
     [not found] <ba5c9f8b914dc6c6d0b4f533d681cda2@quanstro.net>
2008-11-12  5:52 ` sqweek
2008-11-12  5:22 erik quanstrom
     [not found] <150a5464b8f389f1eb92ff001f7d391f@quanstro.net>
2008-11-12  5:17 ` sqweek
2008-11-12  4:50 erik quanstrom
2008-11-09  6:12 erik quanstrom
2008-11-09 13:52 ` Bruce Ellis
2008-11-09 20:39   ` C H Forsyth
2008-11-09 21:57     ` Bruce Ellis
2008-11-07 21:51 Roman V. Shaposhnik
2008-11-07 22:31 ` ron minnich
2008-11-07 23:19   ` Charles Forsyth
2008-11-07 23:45   ` Skip Tavakkolian
2008-11-07 23:51     ` ron minnich
2008-11-08  6:16     ` Bruce Ellis
2008-11-08  7:22       ` Lyndon Nerenberg
2008-11-08  3:43   ` Roman V. Shaposhnik
2008-11-08  3:56     ` ron minnich
2008-11-08  4:29       ` Roman Shaposhnik
2008-11-08 11:39     ` erik quanstrom
2008-11-07 22:37 ` Charles Forsyth
2008-11-07 22:38   ` C H Forsyth
2008-11-08  1:45     ` Roman V. Shaposhnik
2008-11-08 11:47       ` erik quanstrom
2008-11-08 12:11         ` Francisco J Ballesteros
2008-11-08 15:58           ` Charles Forsyth
2008-11-08 17:21             ` Skip Tavakkolian
2008-11-08 18:27               ` Brantley Coile
2008-11-08 18:32                 ` akumar
2008-11-08 18:44                   ` Russ Cox
2008-11-08 23:56                   ` LiteStar numnums
2008-11-08 19:15             ` John Barham
2008-11-08 22:16               ` Roman Shaposhnik
2008-11-08 23:11                 ` erik quanstrom
2008-11-08 23:37                   ` Roman Shaposhnik
2008-11-09 11:26                     ` Steve Simon
2008-11-10  5:50                       ` Enrico Weigelt
2008-11-10  6:17                         ` sqweek
2008-11-10  6:26                           ` Enrico Weigelt
2008-11-10 10:00                             ` Robert Raschke
2008-11-11  2:40                               ` Enrico Weigelt
2008-11-11  2:53                                 ` sqweek
2008-11-10 22:46                           ` Roman V. Shaposhnik
2008-11-10 22:54                       ` Roman V. Shaposhnik
2008-11-10  5:26                     ` Enrico Weigelt
2008-11-10  5:56                       ` Anant Narayanan
2008-11-10  6:18                         ` Enrico Weigelt
2008-11-10 12:11                           ` Charles Forsyth
     [not found]                           ` <4a3bd2fc8118cd88c5bd56605ba6d4e9@terzarima.net>
2008-11-11  2:23                             ` Enrico Weigelt
2008-11-10  6:01                       ` Skip Tavakkolian
2008-11-08 23:36                 ` Mechiel Lukkien
2008-11-08 22:13           ` Roman Shaposhnik
2008-11-08 22:19             ` Bruce Ellis
2008-11-08 22:59               ` Roman Shaposhnik
2008-11-08 23:11                 ` Bruce Ellis
2008-11-08 23:26                 ` ron minnich
2008-11-09  1:12                   ` Bakul Shah
2008-11-09  5:50               ` Skip Tavakkolian
2008-11-09 20:43                 ` C H Forsyth
2008-11-09 22:13                   ` Skip Tavakkolian
2008-11-09 22:21                     ` Bruce Ellis
2008-11-10 21:56         ` Roman V. Shaposhnik
2008-11-10 22:28           ` Anant Narayanan
2008-11-10 23:38           ` C H Forsyth
2008-11-10 23:45             ` Roman V. Shaposhnik
2008-11-11  0:14               ` Charles Forsyth
2008-11-11  1:00                 ` Roman V. Shaposhnik
2008-11-11  1:50                   ` Bruce Ellis
2008-11-11 15:37                   ` Skip Tavakkolian
2008-11-11 16:02                     ` Eric Van Hensbergen
2008-11-11 16:36                       ` Skip Tavakkolian
2008-11-11 16:52                         ` Eric Van Hensbergen
2008-11-12  2:42                           ` sqweek
2008-11-12  3:26                         ` Roman Shaposhnik
2008-11-11 19:18                       ` Bruce Ellis
2008-11-11 19:55                         ` Eric Van Hensbergen
2008-11-11 20:08                           ` Bruce Ellis
2008-11-11 16:30                     ` Uriel
2008-11-11 16:51                       ` ron minnich
2008-11-11 17:01                       ` Eric Van Hensbergen
2008-11-11 17:54                         ` sqweek
2008-11-11 19:46                           ` ron minnich
2008-11-11 20:51                             ` erik quanstrom
2008-11-11 22:33                               ` Eric Van Hensbergen
2008-11-12  0:32                                 ` Eris Discordia
     [not found]                                 ` <D06FA45F8C3E658AA29EAAFD@192.168.1.2>
2008-11-12  4:40                                   ` sqweek
2008-11-11 19:54                           ` Eric Van Hensbergen
2008-11-12  2:11                             ` sqweek
2008-11-12  2:44                               ` Eric Van Hensbergen
2008-11-12  3:51                               ` Roman Shaposhnik
2008-11-12 14:29                                 ` Charles Forsyth
2008-11-12 14:48                                 ` Eric Van Hensbergen
2008-11-12  4:58                               ` ron minnich
2008-11-12  5:20                                 ` Roman Shaposhnik
2008-11-12 17:47                                   ` ron minnich
2008-11-12 19:00                                     ` Uriel
2008-11-12 19:13                                       ` geoff
2008-11-12 19:58                                         ` Charles Forsyth
2008-11-12 19:55                                           ` Brantley Coile
2008-11-12 21:08                                             ` Gorka Guardiola
2008-11-13 16:37                                         ` Dan Cross
2008-11-14  5:52                                           ` Roman Shaposhnik
2008-11-14  8:18                                             ` Steve Simon
2008-11-14 16:35                                             ` Eric Van Hensbergen
2008-11-20 12:08                                             ` Dan Cross
2008-11-20 22:57                                               ` Roman V. Shaposhnik
2008-11-12 19:16                                       ` ron minnich
2008-11-12 19:31                                       ` Eric Van Hensbergen
2008-11-12 21:20                                     ` Roman V. Shaposhnik
2008-11-12  3:40                       ` Roman Shaposhnik
2008-11-11  0:19               ` ron minnich
2008-11-11  0:48                 ` Eric Van Hensbergen
2008-11-11  6:35                 ` Skip Tavakkolian
2008-11-11  2:19           ` Enrico Weigelt
2008-11-11  2:32             ` Lyndon Nerenberg
2008-11-11  6:54             ` Skip Tavakkolian
2008-11-11  8:45           ` Fco. J. Ballesteros
2008-11-11 15:28             ` hiro
2008-11-11 16:25               ` Gorka Guardiola
2008-11-12  1:55             ` Roman V. Shaposhnik
2008-11-12  2:48               ` sqweek

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