9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: "Lyndon Nerenberg (VE6BBM/VE7TFX)"  <lyndon@orthanc.ca>
To: 9fans@9fans.net
Subject: Re: [9fans] Detecting EOF vs. Interrupt across 9P
Date: Fri, 15 Jan 2010 16:22:43 -0700	[thread overview]
Message-ID: <dc17822e90340add8831d5765c3b0ae9@yyc.orthanc.ca> (raw)
In-Reply-To: <dd6fe68a1001151501u55375484v1fc01f282142bfdb@mail.gmail.com>

Russ says:
> i don't believe these two cases can be distinguished.
> in particular i think you'd only see the Tflush if the first
> Twrite was still in flight when you typed DEL.  assuming
> the first write had completed before DEL, the two scenarios
> are indistinguishable other than the different values being
> written.

And after more digging through the docs and kernel this seems to
be the case. (And it describes the behaviour I'm seeing.)

--lyndon




  reply	other threads:[~2010-01-15 23:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-15 21:49 Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-01-15 22:45 ` Charles Forsyth
2010-01-15 23:01   ` Russ Cox
2010-01-15 23:22     ` Lyndon Nerenberg (VE6BBM/VE7TFX) [this message]
2010-01-16  0:56     ` Charles Forsyth
2010-01-16  0:56     ` Charles Forsyth

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=dc17822e90340add8831d5765c3b0ae9@yyc.orthanc.ca \
    --to=lyndon@orthanc.ca \
    --cc=9fans@9fans.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).