This function allows to obtain a singly-linked list of classes, which
can be sorted by the caller.
Signed-off-by: Andreas Färber <afaer...@suse.de>
Cc: Anthony Liguori <anth...@codemonkey.ws>
---
v1 -> v2:
* Instead of object_class_foreach() using a GCompareFunc with a GTree
internally,
return a GSList so that the caller can sort herself (suggested by Anthony).
* Add documentation.
include/qemu/object.h | 11 +++++++++++
qom/object.c | 17 +++++++++++++++++
2 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/include/qemu/object.h b/include/qemu/object.h
index 69e4b7b..ddc3b81 100644
--- a/include/qemu/object.h
+++ b/include/qemu/object.h
@@ -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
diff --git a/qom/object.c b/qom/object.c
index aa037d2..eef0b22 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -572,6 +572,23 @@ 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++;
--
1.7.7
