[X2Go-Dev] Clean processes after x2goterminate-session

[Oleksandr Shneyder]

Why we are not just saving the x2goruncommand PID in the session
directory. All spawned processes will have a  PGID identical to the PID
of x2goruncommand. In the x2goterminate-session we can terminate all
processes with PGID identical to x2goruncommand PID:

kill -- -X2GORUNCMD_PID

looks simple to me and POSIX confirm. Any objections?


regards,
Alex


Am 11.08.21 um 04:57 schrieb Mike Gabriel:
> On  Di 10 Aug 2021 18:10:41 CEST, Ulrich Sibiller wrote:
> 
>> Probably it would be best to use dbus for session termination if it is
>> running.
> 
> This could be one puzzle piece, indeed. Basically, we can kill
> x2goruncommand and then the session manager would automatically go into
> logout.
> 
> However, esp. the GTK desktops (MATE, XFCE, etc.) leave many stray
> processes around (e.g. gvfsd, colord, etc.). For these friends, some
> more intelligence is required. Might have that in the X2Go Server
> renicer code already, because Lee at those early times worked on code
> that detects the complete process tree of a running desktop session.
> 
> Nowadays, one could argue that cgroups are another and better
> alternative. But cgroups are not available on non-Linux, so maybe a
> kernel-agnostic approach is a more favourable way to go?
> 
> Mike


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