Am 12.12.2012 19:16, schrieb Eduardo Habkost: > So, just to check if I understood all correctly: > > DeviceClass.init() is just the old and deprecated version of > DeviceClass.realize() (just because the former has no Error parameter), > but both have exactly the same semantics/purpose, and devices should now > use DeviceClass.realize() instead. Correct?
Almost! Some qdev initfns today do things that instance_init should do and realizefn shouldn't. Creating child devices in qdev initfn tampers with our future ability to set realized = true recursively. The other difference that I see (RFC) is that qdev uses an only-the-instance's-class-sets-init approach, whereas with QOM any class in the hierarchy can set/override the "virtual" method but needs to take care of storing and (if desired) calling the parent's version itself, i.e. an inversion of control towards child classes. Andreas -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
