ref: b28c3db57884d406d5a39750fdc9e46baeb139af
parent: bc54898807d27e79ba9f1b595ef3e09e3da67522
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sun Aug 20 15:22:30 EDT 2017
vt: implement /dev/cons and /dev/consctl as a fileserver, winch, incremental redraw we used to bind a pipe to /dev/cons and /dev/consctl with some shared segment hack to pass tty info arround. now we implement this as a fileserver. add support for "winchon"/"winchoff" ctl message to enable interrupt on window size change. (used by ssh) keep track of fullscreen scrolls, avoiding redrawing the whole screen each time.