Re: [Qemu-devel] [RFC PATCH 01/13] Generic DMA memory access interface

Richard Henderson
2011-06-01T15:46:01Z

On 06/01/2011 08:35 AM, Eduard - Gabriel Munteanu wrote:
> Maybe it's not nice, but you're missing the fact upcasting gives you
> some type safety. With opaques you have none.

Lol. Do you understand what container_of does?
This is not dynamic_cast<> with RTTI.

You can put any type name in there that you like,
so long as it has a field name to match. The type
of the field you give doesn't even have to match
the type of the pointer that you pass in.

Type safety this is not.

r~