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qom: Add object_get_container()

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Add a helper to fetch a root container (under object_get_root()).  Sanity
check on the type of the object.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-ID: <20241121192202.4155849-12-peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Peter Xu 2024-11-21 14:22:00 -05:00 committed by Philippe Mathieu-Daudé
parent 1c34335844
commit 180e8f16f0
2 changed files with 20 additions and 0 deletions
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10
include/qom/object.h
View File

@ -1510,6 +1510,16 @@ const char *object_property_get_type(Object *obj, const char *name,
*/ */
Object *object_get_root(void); Object *object_get_root(void);
/**
* object_get_container:
* @name: the name of container to lookup
*
* Lookup a root level container.
*
* Returns: the container with @name.
*/
Object *object_get_container(const char *name);
/** /**
* object_get_objects_root: * object_get_objects_root:

10
qom/object.c
View File

@ -1751,6 +1751,16 @@ static Object *object_root_initialize(void)
return root; return root;
} }
Object *object_get_container(const char *name)
{
Object *container;
container = object_resolve_path_component(object_get_root(), name);
assert(object_dynamic_cast(container, TYPE_CONTAINER));
return container;
}
Object *object_get_root(void) Object *object_get_root(void)
{ {
static Object *root; static Object *root;