This functions allows to walk the classes in a custom order rather than
in hashtable order.
Signed-off-by: Andreas Färber <afaer...@suse.de>
Cc: Anthony Liguori <anth...@codemonkey.ws>
Cc: Peter Maydell <peter.mayd...@linaro.org>
---
include/qemu/object.h | 6 ++++++
qom/object.c | 43 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/include/qemu/object.h b/include/qemu/object.h
index 5179c0c..ab3597a 100644
--- a/include/qemu/object.h
+++ b/include/qemu/object.h
@@ -560,6 +560,12 @@ 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);
+
+void object_class_foreach_ordered(void (*fn)(ObjectClass *klass, void *opaque),
+ const char *implements_type,
+ bool include_abstract, void *opaque,
+ GCompareFunc compfn);
+
/**
* object_ref:
* @obj: the object
diff --git a/qom/object.c b/qom/object.c
index 2f05ca8..dbfd6a4 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -570,6 +570,49 @@ void object_class_foreach(void (*fn)(ObjectClass *klass,
void *opaque),
g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data);
}
+typedef struct OCFSData {
+ void (*fn)(ObjectClass *klass, void *opaque);
+ void *opaque;
+ GTree *classes;
+} OCFSData;
+
+static void object_class_foreach_ordered_sort(ObjectClass *klass,
+ void *opaque)
+{
+ OCFSData *data = opaque;
+
+ g_tree_insert(data->classes, klass, NULL);
+}
+
+static gboolean object_class_foreach_ordered_tramp(gpointer key,
+ gpointer value,
+ gpointer data)
+{
+ ObjectClass *klass = key;
+ OCFSData *d = data;
+
+ d->fn(klass, d->opaque);
+
+ return FALSE;
+}
+
+void object_class_foreach_ordered(void (*fn)(ObjectClass *klass, void *opaque),
+ const char *implements_type,
+ bool include_abstract, void *opaque,
+ GCompareFunc compfn)
+{
+ OCFSData data = {
+ .fn = fn,
+ .opaque = opaque,
+ };
+
+ data.classes = g_tree_new(compfn);
+ object_class_foreach(object_class_foreach_ordered_sort,
+ implements_type, include_abstract, &data);
+ g_tree_foreach(data.classes, object_class_foreach_ordered_tramp, &data);
+ g_tree_destroy(data.classes);
+}
+
void object_ref(Object *obj)
{
obj->ref++;
--
1.7.7
