Re: gfile-based file notifications are not immediate

["Perry E. Metzger" <perry@piermont.com>]

On Thu, 30 Oct 2014 19:11:55 +0100 Michael Albinus
<michael.albinus@gmx.de> wrote:
> Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
> 
> >> If people on BSD/OS X do not want to use glib, somebody shall
> >> write kqueue support. But it is said to be a hassle,
> >
> > .. and a waste of time since glib already does it for us,
> 
> I agree with you. But *if* somebody writes native kqueue support,
> because he doesn't want to touch glib on OS X: would you as Emacs
> maintainer reject this contribution?

I've been reading the actual code. So far, I'm not sure
how glib could be conveniently used here on Mac OS X even if one
wanted to. From what I can tell, the glib code seems to depend on the
central event loop being managed by glib/gtk, which is not the case
on a port that uses a different GUI. There are also different select
replacements (ns_select vs xg_select etc) used on the different
platforms because they have differing event loop handling.

I might be mistaken, though. I've never read any of the low level
event handling code before and I'm still a bit fuzzy on all the
details.

It also *seems* like Emacs currently is very much wired to use select
and select-like things for its low level event handling. This means
using a different mechanism (say, epoll or kqueue) a challenge.
Perhaps someone can correct me if I'm mistaken.

Perry
-- 
Perry E. Metzger		perry@piermont.com