Howto integrate an inotify watch on editor file in GTK+2 event loop?

["David C. Rankin" <drankinatty suddenlinkmail com>]

All,

  I have a small editor project I've worked on the past several months[1]. I
want to add an `inotify` watch on the current filename after each open or save
to detect modification by a foreign process. I have the details of adding the
watch and polling the file descriptor with `pselect`, creating a new signal to
be emitted on the inotify events, and blocking/unblocking the signal for
normal saves from within the editor, but where I'm stuck is how to incorporate
monitoring `pselect` from the event loop after the `inotify` watchset is created?

  Where normally, you would simply call a function that would check whether
input was available on the file descriptor set monitored by `pselect` in a
loop, where in the GTK event loop would you incorporate the call to `pselect`?

  I may have the answer, but what I'm looking for in an answer is "Yes, that's
a logical approach." or a "No, dummy that's going nowhere."

  From the glib documentation, it appears that one logical vehicle for doing
this is the `g_idle_add()` function which "Adds a function to be called
whenever there are no higher priority events pending to the default main
loop." This seems to match exactly what I'm trying to do. I could pass a flag
via the data to control the return of TRUE/FALSE to remove from the list of
funcitons called when the filename changes, etc.. and within the function
check the return of `pselect` for any input and emit a signal if any changes
were made to the file by a foreign process between the last check and now.

  Is this the proper vehicle for adding/removing a bit of code to the event
loop that I could use to monitor `pselect` or is there a better way of doing
this? (the code is GTK+2, using the current glib functions, not the old
`gtk_idle_add()`, if that makes any difference)

  What say the experts?

footnote 1: https://github.com/drankinatty/gtkwrite

-- 
David C. Rankin, J.D.,P.E.