Re: [Qemu-devel] [PATCH v3 00/20] qom: dynamic properties and composition tree

[Anthony Liguori]

On 12/16/2011 07:52 AM, Paolo Bonzini wrote:
> On 12/16/2011 02:51 PM, Anthony Liguori wrote:
> > struct ISASerial {
> > Device parent;
> >
> > UART _child uart;
> > ISABus _link *bus;
> > };
> >
> > A child should be able to be part of the parent devices memory with its
> > life cycle bound to the parents life cycle. This is why a child
> > property shouldn't be nullable.
>
> 100% agreed in principle.
>
> But technically, if you do not make them pointers how do you handle children
> that, for some reason (broken reference counting for example) outlive the
> parent? Aborting could be a very good answer. :)

Yes, aborting would be the answer.

Regards,

Anthony Liguori

> Paolo