Doc for AT&T Sys V/386 R3.2 filesystem switch?

Doc for AT&T Sys V/386 R3.2 filesystem switch?

Post by Carl Masco » Fri, 01 Jul 1994 03:35:34



Where can I get documentation for the filesystem switch
in AT&T System V/386 R3.2?
I'm looking for sufficient info to implement a filesystem.

Thanks!
--
Carl Mascott

uunet!world!cmascott

 
 
 

Doc for AT&T Sys V/386 R3.2 filesystem switch?

Post by Steve Ra » Sun, 03 Jul 1994 21:12:01



>Where can I get documentation for the filesystem switch
>in AT&T System V/386 R3.2?
>I'm looking for sufficient info to implement a filesystem.

Other than an AT&T internal design doc written by Tom Houghton,
there is no such information available.  You'd be better
off with an SVR4-based interface (USL has something called
the ``File System Writer's Guide'' for source code licensees
of SVR4, but it just defines interfaces and doesn't actually
talk about how to write a file system.  The File System Survival
Kit, available somewhere on the net, includes the sources to a
CD-ROM file system and a DOS FAT file system for SVR4, so this
would be a good place to start if you want to understand some
of the techniques involved.

The problem is that the SVR3.2 interfaces haven't been made
public, so they remain the proprietary information of USL/Novell.

Steve Rago


 
 
 

1. select() on 386/sysV r3.2 / screen switching ?

Hi,

I work on a 386/sysV r3.2 machine via a vt220.  I would like to use a
program that gives you the ability to switch between 'windows'.
The 'screen' program does this (prep.ai.mit.edu:/pub/gnu/screen-3.5.2.tar.gz).
The problem is that this program uses the select() system call which is missing
on my machine.  I have 3 questions:

        1. Is there a way to use the poll() system call to emulate the
           behaviour of the missing select() ?  I'm not familiar with
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           in functionality.

        2. Did someone already adapt the screen program to run on a machine
           that does not have select() ?

        3. Do you know a program like 'screen' that does not use the
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Thanx in advance,
Rob van Nieuwkerk
The Netherlands

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