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Re: [Qemu-devel] [PATCH v3 6/7] qom: add a object_property_add_enum help
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-devel] [PATCH v3 6/7] qom: add a object_property_add_enum helper method |
Date: |
Tue, 12 May 2015 17:53:11 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Fri, May 08, 2015 at 07:45:10PM +0200, Andreas Färber wrote:
> Am 01.05.2015 um 12:30 schrieb Daniel P. Berrange:
>
> Looks good in general. Some minor nits below, and one limitation
> possibly worth mentioning in the second paragraph of the commit message:
> It assumes a 1:1 mapping. I do guess most ones are, but I remember some
> CPUID bits having different names for the same values, for instance.
Worst case, in that edge case, we can simply not use this stricter
enum property type - just carry on with existing custom property
> > diff --git a/include/qom/object.h b/include/qom/object.h
> > index bf76f7a..f6a2a9d 100644
> > --- a/include/qom/object.h
> > +++ b/include/qom/object.h
> > @@ -1271,6 +1271,25 @@ void object_property_add_bool(Object *obj, const
> > char *name,
> > Error **errp);
> >
> > /**
> > + * object_property_add_enum:
> > + * @obj: the object to add a property to
> > + * @name: the name of the property
> > + * @typename: the name of the enum data type
> > + * @get: the getter or NULL if the property is write-only.
>
> %NULL
>
> > + * @set: the setter or NULL if the property is read-only
> > + * @errp: if an error occurs, a pointer to an area to store the error
> > + *
> > + * Add a enum property using getters/setters. This function will add a
> > + * property of type 'enum'.
>
> This is slightly ambiguous, as I understand it the type we're actually
> using is the one in @typename, not "enum"?
Yeah, you are right - this doc mistake is left over from a previous
version before Paolo asked me to add the @typename parameter.
> > diff --git a/tests/check-qom-proplist.c b/tests/check-qom-proplist.c
> > index 9f16cdb..de142e3 100644
> > --- a/tests/check-qom-proplist.c
> > +++ b/tests/check-qom-proplist.c
> > @@ -32,10 +32,28 @@ typedef struct DummyObjectClass DummyObjectClass;
> > #define DUMMY_OBJECT(obj) \
> > OBJECT_CHECK(DummyObject, (obj), TYPE_DUMMY)
> >
> > +typedef enum DummyAnimal DummyAnimal;
> > +
> > +enum DummyAnimal {
> > + DUMMY_FROG,
> > + DUMMY_ALLIGATOR,
> > + DUMMY_PLATYPUS,
> > +
> > + DUMMY_LAST,
> > +};
> > +
> > +static const char *const dummyanimalmap[DUMMY_LAST + 1] = {
>
> dummy_animal_map would be slightly easier to read.
Sure
> > +static void test_dummy_badenum(void)
> > +{
> > + Error *err = NULL;
> > + Object *parent = container_get(object_get_root(),
> > + "/objects");
> > + DummyObject *dobj = DUMMY_OBJECT(
> > + object_new_propv(TYPE_DUMMY,
> > + parent,
> > + "dummy0",
> > + &err,
> > + "bv", "yes",
> > + "sv", "Hiss hiss hiss",
> > + "av", "yeti",
> > + NULL));
> > +
> > + g_assert(dobj == NULL);
>
> Superfluous.
>
> > + g_assert(err != NULL);
> > + g_assert(g_str_equal(error_get_pretty(err),
> > + "Invalid parameter 'yeti'"));
>
> Same question as in previous test: alternatives?
Yep, will check
Regards,
Daniel
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