Re: [Qemu-devel] [PATCH v5 7/8] qom: add a object_property_add_enum helper method

[Eric Blake <eblake@redhat.com>]

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On 05/27/2015 09:07 AM, Daniel P. Berrange wrote:
> A QOM property can be parsed as enum using the visit_type_enum()
> helper method, but this forces callers to use the more complex
> generic object_property_add() method when registering it. It
> also requires that users of that object have access to the
> string map when they want to read the property value.
> 

> Assuming an object struct of
> 
>    typedef struct {
>       Object parent;
>       MyDevType devtype;
>       ...other fields...
>    } MyDev;
> 
> The property can then be registered as follows:
> 
>    static int mydev_prop_get_devtype(Object *obj,
>                                      Error **errp G_GNUC_UNUSED)
>    {
>        MyDev *dev = MYDEV(obj);
> 
>        return dev->devtype;
>    }
> 
>    static void mydev_prop_set_devtype(Object *obj,
>                                       int value,
>                                       Error **errp G_GNUC_UNUSED)
>    {
>        MyDev *dev = MYDEV(obj);
> 
>        dev->endpoint = value;

s/endpoint/devtype/

> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> ---

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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