diff options
Diffstat (limited to 'include/qom/object.h')
| -rw-r--r-- | include/qom/object.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/qom/object.h b/include/qom/object.h index 9feb441986..a641dcde10 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -1073,11 +1073,22 @@ typedef enum { } ObjectPropertyLinkFlags; /** + * object_property_allow_set_link: + * + * The default implementation of the object_property_add_link() check() + * callback function. It allows the link property to be set and never returns + * an error. + */ +void object_property_allow_set_link(Object *, const char *, + Object *, Error **); + +/** * object_property_add_link: * @obj: the object to add a property to * @name: the name of the property * @type: the qobj type of the link * @child: a pointer to where the link object reference is stored + * @check: callback to veto setting or NULL if the property is read-only * @flags: additional options for the link * @errp: if an error occurs, a pointer to an area to store the area * @@ -1087,6 +1098,11 @@ typedef enum { * * Links form the graph in the object model. * + * The <code>@check()</code> callback is invoked when + * object_property_set_link() is called and can raise an error to prevent the + * link being set. If <code>@check</code> is NULL, the property is read-only + * and cannot be set. + * * Ownership of the pointer that @child points to is transferred to the * link property. The reference count for <code>*@child</code> is * managed by the property from after the function returns till the @@ -1096,6 +1112,8 @@ typedef enum { */ void object_property_add_link(Object *obj, const char *name, const char *type, Object **child, + void (*check)(Object *obj, const char *name, + Object *val, Error **errp), ObjectPropertyLinkFlags flags, Error **errp); |