From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
Date: Mon,  3 Sep 2007 09:27:19 +0000
From: "Douglas A. Gwyn" <DAGwyn@null.net>
Message-ID: <WuWdnXB9VqjMQ0fbnZ2dnUVZ_u-unZ2d@comcast.com>
References: <5d375e920709010507u605a0700h331a32934969abb8@mail.gmail.com>,
	<7871fcf50709011811u19834b47qdc8ac9da989c3dd6@mail.gmail.com>
Subject: Re: [9fans] Re: everything is a directory
Topicbox-Message-UUID: b5021ef4-ead2-11e9-9d60-3106f5b1d025

"Joel C. Salomon" <joelcsalomon@gmail.com> wrote ...
> Back on topic, I wasn't proposing a readdir() syscall but pointing out
> that Douglas's suggestion would not in fact be painless or transparent
> under Plan 9.

Since I was unable to get Plan9 installed successfully when I set up
my home systems, and can't use it at work, I don't have direct
experience with its implementation.  I had been thinking that the
Twalk part of 9P was connected with getting directory entries.
However, if dirread() is used instead, then the implementation of
dirread() would of course have to change (turn into a syscall,
with stuff added to 9P and the various file servers, alas).  That
would indeed require a lot of work.  Unix already made the
change a couple of decades ago.