Every process now has an init process like it has a session, and each
session belong to an init. Orphaned processes are reparented to its init
process. All descendent processes are SIGKILL'd when an init process exits
and creating additional processes/threads fails.
Add setinit(2) for becoming the init process for your child processes and
add getinit(2) for locating your init process.
Add TIOCSCTTY force flag that releases a terminal from its current session
and makes it the controlling terminal for the current session. This ioctl
is essential to transferring the controlling terminal to a nested init,
which has its own session.
Add TIOCUCTTY that releases the terminal as the controlling terminal for
its current session.
Remove INIT_PID as it is replaced by getinit(2).
This change adds the display(1) graphical user interface and desktop
environment with basic windowing support and the graphical terminal(1)
emulator along with integrations in chkblayout(1), chvideomode(1),
sysinstall(8), sysupgrade(8), as well as the games and ports.
Adopt the Aurora procedural wallpaper in display(1) and login(8).
Remove the obsolete dispd.
Juhani contributed keyboard and video mode APIs to the display protocol
and other miscellaneous changes.
dzwdz contributed the initial functioning window buttons, improved title
bar, window tiling, and minor bug fixes
Co-authored-by: Juhani Krekelä <juhani@krekelä.fi>
Co-authored-by: dzwdz <kg67199@gmail.com>
Jonas 'Sortie' Termansen
Juhani Krekelä