Re: [Qemu-devel] [PATCH for-next v2 01/22] object: Add OBJECT_GET_PARENT_CLASS() macro

[Alexey Kardashevskiy <aik@ozlabs.ru>]

On 08/01/2013 12:17 PM, Andreas Färber wrote:
> The object argument is currently unused and may be used to optimize the
> class lookup when needed.
> 
> Inspired-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
> Signed-off-by: Andreas Färber <afaerber@suse.de>
> ---
>  include/qom/object.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/include/qom/object.h b/include/qom/object.h
> index 23fc048..a8e71dc 100644
> --- a/include/qom/object.h
> +++ b/include/qom/object.h
> @@ -511,6 +511,16 @@ struct TypeInfo
>      OBJECT_CLASS_CHECK(class, object_get_class(OBJECT(obj)), name)
>  
>  /**
> + * OBJECT_GET_PARENT_CLASS:
> + * @obj: The object to obtain the parent class for.
> + * @name: The QOM typename of @obj.
> + *
> + * Returns the parent class for a given object of a specific class.
> + */
> +#define OBJECT_GET_PARENT_CLASS(obj, name) \
> +    object_class_get_parent(object_class_by_name(name))
> +
> +/**
>   * InterfaceInfo:
>   * @type: The name of the interface.
>   *
> 

Has anyone ever tried to use this macro?



-- 
Alexey