bug#16519: 24.3.50; gfile notifications not received in batch mode

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: 16519@debbugs.gnu.org
> Date: Mon, 03 Feb 2014 14:31:47 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> Reading file notifications via gio does not use file descriptors, which
> >> are handled via xg_select. The same will happen, if we switch to gdbus
> >> or kdbus later on. That's why we might need another kind of mainloop 
> >> integration.
> >
> > That just means we should call xg_select etc. in addition to calling
> > pselect.  The events that come that way should still be put on the
> > same single queue, IMO.
> 
> Maybe I'm too stupid, but how shall we call xg_select w/o a file descriptor?

No, it's my fault: I misunderstood your comment about xg_select,
sorry.

What I meant to say was that the same method we use to read file
notifications via gio should be used, directly or indirectly, where we
call pselect, so that these events enter the event queue like any
others.