Re: [gtk-list] Re: Marshallers, _interp, and the Meaning of Life

[Jay Bloodworth <jay pathways sde state sc us>]

On Tue, 10 Feb 1998, Tim Janik wrote:

[good explanation of marshalling snipped]

Thanks, that was very helpful.  One more question:

> 
> which without marshalling would have looked like
> static void
> gtk_real_window_move_resize (GtkObject      *object,
>                              gpointer        func_data,
>                              GtkArg         *args)
> {
>   gint *x;
>   gint *y;
>   gint width;
>   gint height;
>   gint *return_val;
>   
>   return_val = GTK_RETLOC_BOOL (args[4]);
>   x = GTK_VALUE_POINTER (args[0]);
>   y = GTK_VALUE_POINTER (args[1]);
>   width = GTK_VALUE_INT (args[2]);
>   height = GTK_VALUE_INT (args[3]);
>   
>   [...]
>   
>   *return_val = something_that_came_out_of_the_function;
> }
> 

So marshalling basically moves the code that references, casts, and names
arguments in the GtkArg array into a separate function.  I see how this is
a big win in terms of program neatness, especially if you aren't concerned
with the situations that require marshallers.  Are there any other
advantages to using a marshalling system?

Jay

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