[Qemu-devel] [PATCH 1/2] qom: add object_class_get_instance_size()

[Igor Mammedov <imammedo@redhat.com>]

it will be used for allocating memory for a to be
created new object in safe manner.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 include/qom/object.h | 8 ++++++++
 qom/object.c         | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/include/qom/object.h b/include/qom/object.h
index 4509166..8f61b0b 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -880,6 +880,14 @@ bool object_class_is_abstract(ObjectClass *klass);
  */
 ObjectClass *object_class_by_name(const char *typename);
 
+/**
+ * object_class_get_instance_size:
+ * @klass: The #ObjectClass to obtain instance size
+ *
+ * Returns: instance size of @klass
+ */
+size_t object_class_get_instance_size(ObjectClass *klass);
+
 void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
                           const char *implements_type, bool include_abstract,
                           void *opaque);
diff --git a/qom/object.c b/qom/object.c
index d751569..2f141ee 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -771,6 +771,11 @@ ObjectClass *object_class_get_parent(ObjectClass *class)
     return type->class;
 }
 
+size_t object_class_get_instance_size(ObjectClass *klass)
+{
+   return klass->type->instance_size;
+}
+
 typedef struct OCFData
 {
     void (*fn)(ObjectClass *klass, void *opaque);
-- 
1.8.3.1