Don't use g_type_class_add_privat(). Either use the define type with private macro, or the define type with code macro with G_ADD_PRIVATE.
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. The GObject tutorial has a good introduction on how to define types and how to use them. Ciao, Emmanuele. On Tue, 21 Mar 2017 at 19:57, Nicola Fontana <n...@entidi.it> wrote: > Il Tue, 21 Mar 2017 17:55:31 +0000 Tristan Van Berkom < > tristan.vanber...@codethink.co.uk> scrisse: > > > ... > > o I believe the lookups with G_TYPE_INSTANCE_GET_PRIVATE() are just > > as cheap as the pointer dereference (as it will be implemented > > using simple pointer arithmetic). > > Hi Tristan, > > 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 > > Ciao. > -- > Nicola > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list -- https://www.bassi.io [@] ebassi [@gmail.com] _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
