As an alternative, we may think about using system-logind to kill all user's processes when logout...
Thanks.
Fred
-----Original Message----- From: x2go-dev <x2go-dev-bounces@lists.x2go.org> On Behalf Of Oleksandr Shneyder Sent: 2021年8月13日 22:25 To: Ulrich Sibiller <uli42@gmx.de> Cc: x2go-dev@lists.x2go.org Subject: Re: [X2Go-Dev] Clean processes after x2goterminate-session
In my tests dbus and all processes running inside of the session having PGID of x2goruncommand.
Alex
Am 13.08.21 um 01:47 schrieb Ulrich Sibiller:
Are you sure dbus does not have its own PGID?
Uli
On Thu, Aug 12, 2021 at 7:36 PM Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> wrote:
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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Oleksandr Shneyder | Email: o.shneyder@phoca-gmbh.de phoca GmbH | Tel. : 0911 - 14870374 0 Schleiermacherstr. 2 | Fax. : 0911 - 14870374 9 D-90491 Nürnberg | Mobil: 0163 - 49 64 461
Geschäftsführung: Dipl.-Inf. Oleksandr Shneyder
Amtsgericht München | http://www.phoca-gmbh.de HRB 196 658 | http://www.x2go.org USt-IdNr.: DE281977973
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