Dbus daemon

Robert McQueen robert.mcqueen at collabora.co.uk
Thu Mar 9 07:24:39 PST 2006

Thiago Macieira wrote:
> Kalle Vahlman wrote:
>> This definitely sounds like stuff that should be conveyed through the
>> system bus, doesn't it?
> Yes.

No, not really. How would you arbitrate this? The first user to log in
takes the org.gnome.screensaver service name, and then the script is
unable to request to lock anyone else's screen? If there was some way of
enforcing (without enumerating usernames in the bus config, or something
crap) that certain parts of the system bus namespace could be held only
by programs running as a certain user, you'd be able to have some system
component know it was talking to processes running as that particular
user. Otherwise, the system bus isn't a replacement for a user-level
bus, because you can't enforce which user you're talking to.

> The only feature I can think of for a user-level bus is to send broadcasts 
> or signals to all apps from that user.

Er? No. How about services that represent or query resources which are
conceptually belonging to the user, not to a particular session? Like
the user's configuration settings, address book, connections to IM or
VOIP servers...?


More information about the dbus mailing list