2013/5/7 Daniel Juyung Seo <seojuyu...@gmail.com> > Hello, > > On Tue, May 7, 2013 at 6:47 PM, Carsten Haitzler <ras...@rasterman.com> > wrote: > > On Tue, 7 May 2013 17:32:05 +0900 Bluezery <ohpo...@gmail.com> said: > > > >> Hello, > >> > >> I have query abount elm_genlist_item_class_new/free/unref. > >> > >> Elm_Genlist_Item_Class is user created memory and referred by genlist > >> object. > > Well, no. When we use elm_genlist_item_class_new(), item class is > created by genlist and managed by genlist even though application call > the API. > That was the whole point of that API or application could mis-manage > item class life cycle. > > >> > >> But sometimes application want to do not use it anymore. > >> So there is just one option to do this, it is to call > >> elm_genlist_item_class_free. > >> Evenghough, Item Class callbacks can be called because genlist refer the > >> Item Class yet. Moreover, if application is module, application can > crash > >> after module is unloaded. > >> > >> There is two options: > >> 1.I can add new API to do this.elm_genlist_item_class_free2 or > something. > >> This is easy way but should be deprecaed later. > >> > > If you really want, this can be elm_genlist_item_class_del() or > something not like free2. > > >> 2. In elm_genlist_item_class_free(), all calbacks can be NULL because > the > >> name is too intuitive for application. But this will break ABI and also > >> genlist example in elementary should be changed. > > Yes ABI break. So vetoed! > > >> > >> 3. All application fix their own to set all callbacks as NULL before > >> unloaded. > >> But this seems to be workaround for application. > > This looks weird to me. Why apps change the callbacks on a run-time? > They can set a flag and just return from the callbacks. > > >> > >> I like option 2. So I suggest how about above fix be added at the time > when > >> 1.8 is released. I think that this weired API usage should be fixed > ASAP. > >> Or after 2.0? > > Well API/ABI/Theme break will not happen before 2.0. > 2.0 will happen around 2016-2017. > You can update the "EFL 2.0 TODO" document beforehand. > https://phab.enlightenment.org/w/efl_2.0_todo/ > > > > > #3. > > > > free frees, but the class is refcounted.. so it stays around and alive > as long > > as items need it. they all point to it. > > Well yeah. #3 can be done from the application side. > But I prefer #1 to #2 and #3. The new API should be used only when it's > needed. >
okay, adding new API can be workaround so I guided #3 to whole apllications. #3 seems to be no harmful after API usage is changed later (after 2.0). Thanks. > > Thank. > > Daniel Juyung Seo (SeoZ) > > > > >> Thanks > >> > >> -- > >> BRs, > >> Kim. > >> > ------------------------------------------------------------------------------ > >> Learn Graph Databases - Download FREE O'Reilly Book > >> "Graph Databases" is the definitive new guide to graph databases and > >> their applications. This 200-page book is written by three acclaimed > >> leaders in the field. The early access version is available now. > >> Download your free book today! http://p.sf.net/sfu/neotech_d2d_may > >> _______________________________________________ > >> enlightenment-devel mailing list > >> enlightenment-devel@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > >> > > > > > > -- > > ------------- Codito, ergo sum - "I code, therefore I am" -------------- > > The Rasterman (Carsten Haitzler) ras...@rasterman.com > > > > > > > ------------------------------------------------------------------------------ > > Learn Graph Databases - Download FREE O'Reilly Book > > "Graph Databases" is the definitive new guide to graph databases and > > their applications. This 200-page book is written by three acclaimed > > leaders in the field. The early access version is available now. > > Download your free book today! http://p.sf.net/sfu/neotech_d2d_may > > _______________________________________________ > > enlightenment-devel mailing list > > enlightenment-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > > > ------------------------------------------------------------------------------ > Learn Graph Databases - Download FREE O'Reilly Book > "Graph Databases" is the definitive new guide to graph databases and > their applications. This 200-page book is written by three acclaimed > leaders in the field. The early access version is available now. > Download your free book today! http://p.sf.net/sfu/neotech_d2d_may > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > -- BRs, Kim. ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
