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qom: Introduce object_class_get_list()

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This function allows to obtain a singly-linked list of classes, which
can be sorted by the caller.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Andreas Färber 2012-02-25 23:07:34 +01:00 committed by Anthony Liguori
parent ac4510337d
commit 418ba9e5d6
2 changed files with 28 additions and 0 deletions
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11
include/qemu/object.h
View File

@ -560,6 +560,17 @@ ObjectClass *object_class_by_name(const char *typename);
void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
const char *implements_type, bool include_abstract,
void *opaque);
/**
* object_class_get_list:
* @implements_type: The type to filter for, including its derivatives.
* @include_abstract: Whether to include abstract classes.
*
* Returns: A singly-linked list of the classes in reverse hashtable order.
*/
GSList *object_class_get_list(const char *implements_type,
bool include_abstract);
/**
* object_ref:
* @obj: the object

17
qom/object.c
View File

@ -584,6 +584,23 @@ void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data);
}
static void object_class_get_list_tramp(ObjectClass *klass, void *opaque)
{
GSList **list = opaque;
*list = g_slist_prepend(*list, klass);
}
GSList *object_class_get_list(const char *implements_type,
bool include_abstract)
{
GSList *list = NULL;
object_class_foreach(object_class_get_list_tramp,
implements_type, include_abstract, &list);
return list;
}
void object_ref(Object *obj)
{
obj->ref++;