On Tue, 21 Mar 2017 20:53:04 +0000 Emmanuele Bassi <eba...@gmail.com> wrote:
> > Also, do not store a private pointer in your instance structure, and > use the get_private_instance() function that the G_DEFINE_TYPE macro > creates for you. > So you say whenever I need access to the objects private data I should call G_TYPE_INSTANCE_GET_PRIVATE, despite the mentioned overhead? > The GObject tutorial has a good introduction on how to define types > and how to use them. > Indeed. It took me a while to walk through it. However, the example given in [3] has the comment /* Other members, including private data. */, which would contradict your opinion, or is at least a bit unclear, because final and derivable types are handled a bit differently. [3] https://developer.gnome.org/gobject/stable/howto-gobject-code.html > Ciao, > Emmanuele. > On Tue, 21 Mar 2017 at 19:57, Nicola Fontana <n...@entidi.it> wrote: > > > > > the lookup indeed is quite expensive, and looking at the > > implementation [1] it is not that straightforward. > > > > The very same example provided by the official documentation [2] > > caches that pointer into the instance struct. > > > > [1] https://git.gnome.org/browse/glib/tree/gobject/gtype.c#n4709 > > [2] > > https://developer.gnome.org/gobject/stable/gobject-Type-Information.html#g-type-class-add-private > > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
