bug#11822: 24.1; emacsclient terminal mode captures escape characters as text

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> 5) Even better, can we do the other-display updates in small increments,
>> so that once we start doing those updates we don’t have a block of 160*RTT
>> seconds where we’re unresponsive to new user input?

We could potentially do something like:
- arrange for redisplay to first redisplays the selected frame.
- check for input (and abort redisplay if applicable) between each frame.

But the redisplay of each frame (or at the very least each window) can't
be cut into small increments, as the code currently stands.

Of course, I'd really happy if someone were to come and change the
redisplay so that each frame gets redisplayed from its own thread,
concurrently with the main Elisp loop.

I think parallelising the redisplay (i.e. one thread per terminal or
per frame or per window) shouldn't be too difficult.  But making the
redisplay concurrent with the main Elisp loop is likely to be a fair
amount of work.

"Fair amount of work" doesn't mean impossible, tho.


        Stefan