Re: [Qemu-devel] [RFC v0 5/8] object: make interfaces concrete

[Anthony Liguori]

On 06/13/2012 08:33 AM, Paolo Bonzini wrote:
> Il 13/06/2012 15:30, Anthony Liguori ha scritto:
> > Anyway, I don't like the idea of making interfaces concrete.  That means
> > that a user could directly instantiate an interface which doesn't make a
> > lot of sense.
>
> Concrete doesn't mean "instantiatable by the user".  It means
> "instantiatable period".

Interfaces are not supposed to be instantiatable by anyone.  The fact that 
object_new() is used to create the interface is an internal implementation detail.

Interfaces are stateless and by definition, never have an implementation on 
their own.  So object_new() of an interface type directly results in a useless 
object.

Regards,

Anthony Liguori

> Paolo