obj: add more set and namespace functions

obj/object.c

@@ -93,6 +93,16 @@ void object_deref(object_t *obj)
 	spin_unlock_irqrestore(&obj->ob_lock, flags);
 }
 
+void object_lock(object_t *obj, unsigned long *flags)
+{
+	spin_lock_irqsave(&obj->ob_lock, flags);
+}
+
+void object_unlock(object_t *obj, unsigned long flags)
+{
+	spin_unlock_irqrestore(&obj->ob_lock, flags);
+}
+
 void *object_data(object_t *obj)
 {
 	return (char *)obj + sizeof *obj;
@@ -107,3 +117,34 @@ object_t *object_header(void *p)
 
 	return obj;
 }
+
+object_t *object_get_child_named(object_t *obj, const char *name)
+{
+	object_t *out = NULL;
+	
+	if (HAS_OP(obj, get_named)) {
+		obj->ob_type->ob_ops->get_named(obj, name, &out);
+	}
+
+	return out;
+}
+
+object_t *object_get_child_at(object_t *obj, size_t at)
+{
+	object_t *out = NULL;
+	
+	if (HAS_OP(obj, get_at)) {
+		obj->ob_type->ob_ops->get_at(obj, at, &out);
+	}
+
+	return out;
+}
+
+kern_status_t object_query_name(object_t *obj, char name[OBJECT_NAME_MAX])
+{
+	if (HAS_OP(obj, query_name)) {
+		return obj->ob_type->ob_ops->query_name(obj, name);
+	}
+
+	return KERN_UNSUPPORTED;
+}