Re: Theory of good signal/event API design?

[Robert Schwebel <r schwebel pengutronix de>]

On Sun, Sep 16, 2007 at 06:28:56PM +0200, Sander Marechal wrote:
> I am building an application in which pretty much all functionality is
> abstracted away in various modules. All these modules can be loaded and
> configured at will and everything communicates by passing
> messages/events around. Modules can listen for specific messages and
> respond to it, or send out messages of their own, etcetera. Pretty
> similar to how GTK works (in fact, it uses the GObject/GstObject system.
> All messages are passed over a GStreamer bus).
>
> My question: How do I determine what signals/events I should send out so
> that together they make for a nice module API? For now, I am simply
> building modules and adding signals to the application as I need them,
> but I bet there is a better way to figure out which signals I should add
> and where I should add them.
>
> Is there some theory, guidelines, tutorials, whatever about designing an
> event/message system, especially about what events/messages/signals to
> add at which locations?
>
> My application doesn't use GTK, just GObject and GStreamer, but I am
> asking here since GTK works in a similar way.

Wouldn't that be an application for dbus?

Robert 
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