Re: fourth report: cheese integration

[Felix Kaser <f kaser gmx net>]

Cosimo Cecchi schrieb:
> On Mon, 2008-06-23 at 10:34 +0200, Felix Kaser wrote:
>
>   
> > The problem is: When cheese gets called via dbus, it enters a specific 
> > method (remote method). In this method cheese should wait until the user 
> > has taken a picture, then return the path via dbus. But what about the 
> > waiting? Well the client blocks, but this is not a problem in my 
> > opinion. The thing is, how to make the "waiting" of the cheese-method? 
> > Active waiting (while (return_path == null) wait(1); ) sounds really 
> > ugly! But what else? Make a new thread? Work with signals? Change the 
> > whole work flow?
> >
> > Can somebody help me with that? I'm sure one of you has had similar 
> > problems and has solved them in a nice way :)
> >     
>
> I am having my first experiences with DBus too these days ;)
> It seems that an object on the bus can have signals too, other than
> methods. So a very simple way to solve your issue could be splitting the
> picture acquisition process into two steps: first you call the remote
> method on the cheese manager, then, when the picture is ready, a signal
> is emitted from the manager itself, with the path as argument.
>
>   
Nice idea...but who will be listening for the signal? The client? So the 
client calls the remote method and then waits for the signal?
> Hope that I understood your problem correctly ;)
>
> Cheers!
>
>   
Salut =)