GNU bug report logs - #56025
29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin

Previous Next

Package: emacs;

Reported by: Ken Brown <kbrown <at> cornell.edu>

Date: Thu, 16 Jun 2022 18:36:02 UTC

Severity: normal

Found in version 29.0.50

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

Full log


Message #145 received at 56025 <at> debbugs.gnu.org (full text, mbox):

From: Jim Porter <jporterbugs <at> gmail.com>
To: Ken Brown <kbrown <at> cornell.edu>, Sean Whitton
 <spwhitton <at> email.arizona.edu>, Eli Zaretskii <eliz <at> gnu.org>
Cc: larsi <at> gnus.org, 56025 <at> debbugs.gnu.org
Subject: Re: bug#56025: [WIP PATCH] 29.0.50; em-extpipe-test-2 times out on
 EMBA and Cygwin
Date: Sun, 17 Jul 2022 22:26:36 -0700
On 7/17/2022 2:59 PM, Ken Brown wrote:
> On 7/16/2022 10:35 PM, Jim Porter wrote:
>> Ok, attached is a WIP patch to do this. It seems to work for me under 
>> Cygwin, although I've only lightly tested it in that environment. If 
>> this works for you too, I'll finish cleaning this up and add 
>> tests/documentation for it.
> 
> It does work for me too.  Thanks!

Great! This should make Eshell behave a bit more similarly to other 
shells, so hopefully this will help prevent other issues in this area.

>> Note that in my patch, I temporarily undid my previous patch to send 
>> EOF multiple times. This is just for testing purposes, but since we're 
>> using a pipe for this connection now, a single call to 
>> `process-send-eof' should be sufficient.
> 
> There shouldn't be a need for any calls to process-send-eof.  This is a 
> noop anyway when writing to a pipe, as it should be.

Looking at the implementation of `process-send-eof', I think it's 
(somewhat misleadingly) also responsible for closing the file descriptor 
when writing to a pipe, so I believe we'll need at least one call to 
that function.

As you say though, it shouldn't be too hard for Eshell to check whether 
it's writing to a pipe and only try to call `process-send-eof' once in 
that case.




This bug report was last modified 2 years and 350 days ago.

Previous Next


GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.