Re: Increase FD_SETSIZE in w32.h to allow more than 32 (actually 29) subprocesses

[Eli Zaretskii]

> From: "Yue Yi" <include_yy@qq.com>
> Cc: "emacs-devel" <emacs-devel@gnu.org>
> Date: Wed, 22 Jan 2025 00:00:54 +0800
> 
> Hi Eli,
> 
> Thanks for your reply.

Thank you for your interest in this aspect of Emacs in the first
place.

> > I'd like to lift that limitation, indeed, but keeping the current
> > general design of how support for sub-processes on MS-Windows is
> > implemented in Emacs.  That's because this design had withstood the
> > test of time, and so is considered generally solid.  I'd like to keep
> > it that way, with only minimal changes.  Do you think this will be
> > possible?
> 
> I'll try it and make minimal modifications to the existing code.

Thanks.  Please don't hesitate to ask questions, it might save you
unnecessary work.

In case you didn't know, there's a large comment starting around line
890 of the file w32proc.c in the Emacs source tree, which provides an
overview of how sub-processes are supported in Emacs on MS-Windows.

> > Starting from the code of the person who submitted bug#71628 is
> > possible, but that person will still need to sign the copyright
> > assignment, as he will be one of the authors of the code.  Is that
> > possible?
> 
> I will notify him and ask him to reply to this list.
> 
> Of course, if he disagrees (which is almost impossible), I will
> consider implementing it myself without relying on his code :p

Thanks.  In that case, it is best if someone else reads his code and
describes the main ideas, and you then write the code based on that
description.

> > Yes, we will need you to sign the copyright assignment agreement,
> > by which you assign the copyright of your code to the FSF.  If you
> > agree, I will send you the form to fill and the instructions to go
> > with it.
> 
> Thanks, please send it to me.

Form sent off-list.