Re: INSTALL.W64

[Fabrice Popineau <fabrice.popineau@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1718 bytes --]

2017-11-04 13:17 GMT+01:00 Eli Zaretskii <eliz@gnu.org>:

> > From: Michael Albinus <michael.albinus@gmx.de>
> > Cc: Eli Zaretskii <eliz@gnu.org>,  Stephen Leake <
> stephen_leake@stephe-leake.org>,  Emacs developers <emacs-devel@gnu.org>
> > Date: Sat, 04 Nov 2017 10:02:40 +0100
> >
> > Do you believe D-Bus could run on w64?
>
> This question should be actually asked on the MSYS2 list, because the
> MSYS2 project does provide a MinGW build of D-Bus, so I would expect
> them to test the port and see that it is useful on Windows.  Whether
> the features it supports on MS-Windows are enough to satisfy what
> Emacs needs, I don't know.
>

But that won't make emacs run with DBus. I quote a previous conversation
with you (in case you've forgotten) :

me> At the moment, I'm trying to understand why DBus from MinGW64
me> seems to work (I can dbus-send info and monitor it),
me> but Emacs fails to take advantage of it.
me>
me> Emacs does not see any DBUS_EVENT in its event loop.
me>
me> The file src/dbusbind.c is making use of add_read_fd() and
add_write_fd().
me> Are those functions known to work for Win32?

you> I don't expect them to work, because no one bothered to add the
you> necessary code to sys_select.  We only watch the file descriptors for
you> subprocesses we know about, and also for the keyboard and for C-g,
you> that's all.  Look at the beginning of sys_select, and you will see how
you> we collect the handles on which we wait with WaitForMultipleObjects.
you> There's nothing there that consults the fd_callback_info[] array that
you> add_read_fd and add_write_fd manipulate.

Clearly, DBus can't work on emacs/w64 because add_read_fd() and
add_write_fd()
are not working in this context.

[-- Attachment #2: Type: text/html, Size: 3586 bytes --]