[tarantool-patches] Re: [PATCH v2] Introduce separate entity object types for entity privileges.
Vladimir Davydov
vdavydov.dev at gmail.com
Fri Aug 17 18:57:34 MSK 2018
On Fri, Aug 17, 2018 at 03:19:29PM +0300, Serge Petrenko wrote:
> diff --git a/src/box/alter.cc b/src/box/alter.cc
> index 3007a131d..f586a2695 100644
> --- a/src/box/alter.cc
> +++ b/src/box/alter.cc
> @@ -2537,10 +2537,35 @@ priv_def_create_from_tuple(struct priv_def *priv, struct tuple *tuple)
> {
> priv->grantor_id = tuple_field_u32_xc(tuple, BOX_PRIV_FIELD_ID);
> priv->grantee_id = tuple_field_u32_xc(tuple, BOX_PRIV_FIELD_UID);
> +
> const char *object_type =
> tuple_field_cstr_xc(tuple, BOX_PRIV_FIELD_OBJECT_TYPE);
> - priv->object_id = tuple_field_u32_xc(tuple, BOX_PRIV_FIELD_OBJECT_ID);
> priv->object_type = schema_object_type(object_type);
> +
> + const char *data = tuple_field(tuple, BOX_PRIV_FIELD_OBJECT_ID);
> + if (data == NULL) {
> + tnt_raise(ClientError, ER_NO_SUCH_FIELD,
Bad indentation - should be a tab here. Please fix.
> + *
> + * When adding new types please keep the
> + * same order between objects and corresponding entity types.
> + * schema_entity_type() relies on this convention.
> */
> enum schema_object_type {
> SC_UNKNOWN = 0,
> @@ -228,9 +232,21 @@ enum schema_object_type {
> SC_ROLE = 5,
> SC_SEQUENCE = 6,
> SC_COLLATION = 7,
> - schema_object_type_MAX = 8
> + schema_object_type_MAX = 8,
Please add a comment here that says that below this point only entity
types are supposed to be defined.
> + SC_ENTITY_SPACE,
> + SC_ENTITY_FUNCTION,
> + SC_ENTITY_USER,
> + SC_ENTITY_ROLE,
> + SC_ENTITY_SEQUENCE,
> + SC_ENTITY_COLLATION
> };
> +enum schema_object_type
> +schema_entity_type(enum schema_object_type type)
> +{
> + assert((int) type < (int) schema_object_type_MAX);
> + return type + schema_object_type_MAX - 1;
> +}
No. Too fragile - easy to make a mistake when adding a new type.
And this -1 looks suspicious. Kostja isn't going to like it.
I vote for rewriting this code with a simple switch-case.
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