Tracking Application Lifetime [again]

[Thiago Macieira]

On Thursday 07 August 2008 08:21:58 Soh Kam Yung wrote:
> Does anybody have an archive of the notes or can help give pointers on
> how to use libdbus to track application lifetimes?

Pre-requisite: both applications (tracker and "trackee") are connected to D-
Bus

Step 1: tracker somehow finds out which, out of the many applications 
connected to D-Bus, is the one it wants to track.
Suggestions:
	- the tracked application registers a well known name (org.foo.Application)
	- the tracked application is doing some kind of activity, like emitting a 
	signal or calling the tracker, so the tracker gets the unique ID (:1.xx)

Step 2: tracker starts listening for the org.freedesktop.DBus.NameOwnerChanged 
signal, where the first argument is the connection name being tracked (either 
the well-known name or the unique ID). Any activity in that name means it 
either changed owners or that the application exited.

-- 
  Thiago Macieira  -  thiago (AT) macieira.info - thiago (AT) kde.org
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