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From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: EWOULDBLOCK and EINPROGRESS in process.c
Date: Tue, 24 Mar 2015 16:42:00 -0700	[thread overview]
Message-ID: <5511F648.4030505@cs.ucla.edu> (raw)
In-Reply-To: <83sicup8s0.fsf@gnu.org>

Eli Zaretskii wrote:

> Can someone tell why we need that "#else" there?

The EWOULDBLOCK code is there because Kim Storm heard a rumor that some oddball 
nonblocking 'connect' implementations returned EWOULDBLOCK.  Please see:

https://lists.gnu.org/archive/html/emacs-devel/2002-02/msg00718.html

I also vaguely recall stories that some old Unix platforms did that.  The most 
recent reference I found in a quick Google search was UnixWare 7 Release 7.1.4 
(April 2004):

http://uw714doc.sco.com/en/SDK_netapi/sockC.nonBlockSocks.html

If that documentation is right, the current Emacs code wouldn't work on UnixWare 
7.1.4, not that we care.



  parent reply	other threads:[~2015-03-24 23:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-24 18:09 EWOULDBLOCK and EINPROGRESS in process.c Eli Zaretskii
2015-03-24 21:25 ` Andreas Schwab
2015-03-25 18:13   ` Eli Zaretskii
2015-03-24 23:42 ` Paul Eggert [this message]
2015-03-25 18:15   ` Eli Zaretskii

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