[desktop-discuss] Fast reboot support of GNOME restart dialog [LSARC/2009/454 FastTrack timeout 09/01/2009]

[Jedy Wang]

Hi Margot,

HAL has been deprecated by the community. Its functionalities have been
divided and implemented by several new modules in the community. That's
why I do not want to extend HAL.

Regards,

Jedy
On Wed, 2009-09-02 at 21:01 -0700, Margot Miller wrote:
> I thought it was strange that ConsoleKit would have reboot given
> that HAL service  already has reboot, halt, and suspend.    
> 
> Thanks
> Margot
> 
> 
> 
> Jedy Wang wrote:
> > On Wed, 2009-09-02 at 10:37 +0200, Joerg Barfurth wrote:
> >   
> >> Wrt ConsoleKit: I share the concerns that it isn't entirely clear which 
> >> DBus service should become the single, authoritative service to provide 
> >> system reboot/shutdown (and suspend, etc) services. These interfaces 
> >> look a bit out of place on ConsoleKit.
> >>     
> > Hi Joerg,
> >
> > I think ConsokeKit provides only one DBus service daemon (It's a
> > privileged daemon) which is used to check for the
> > solaris.system.shutdown authorization. We can extend this service daemon
> > to export a few DBus methods to support fast reboot.
> >
> > For example, ConsoleKit DBus service daemon currently provides 2 DBus
> > methods, Stop and Restart, to shutdown and reboot the system. We can add
> > 2 new DBus methods, FastRestart and ColdRestart, to support fast reboot
> > and reboot to prom.
> >
> > I do not understand what you mean by "These interfaces look a bit out of
> > place on ConsoleKit"?
> >
> > Regards,
> >
> > Jedy
> >   
> >> The only reasons I can see for them being there is
> >>
> >> - ConsoleKit is the place where it is known that a user is 'on the 
> >> console', i.e. that notion can be more clearly and flexibly expressed by 
> >> combining the notion of ConsoleKit seats with PolicyKit (or isn't that 
> >> going away in favor of 'polkit' nowadays?) rules than by using "logged 
> >> in on '/dev/console'". (How does /dev/console ownership translate in 
> >> times of VTs?)
> >>
> >> This would make these interfaces look misplaced in Solaris, as we are 
> >> not using PolicyKit/polkit for these things (yet?). And it would 
> >> indicate that ConsoleKit is in the game for checking authorization, but 
> >> does not imply that it is the proper place to implement the 
> >> functionality (and all the boot knobs - fast vs. bios, change of BE, etc).
> >>
> >> - GDM needs them and is based on ConsoleKit. That would make this mere 
> >> convenience. GDM could easily make use of another service.
> >>
> >> It would be good to have a longer term architectural vision here, as 
> >> that would determine how much of this should be exposed by ConsoleKit. 
> >> And I don't know how much platform-specific interface would be 
> >> acceptable for ConsoleKit.
> >>
> >>
> >> BTW: Is there any interaction between the gdm user and the 'Console 
> >> User' status? The gdm user probably should never be considered the 
> >> console owner, even if a greeter is running on the console. I hope that 
> >> is the case ....
> >>
> >> - Jörg
> >>
> >>
> >>     
> >
> >
> >   
>