qom: introduce object_property_get_enum and object_property_get_uint16List

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2 files changed, 63 insertions, 0 deletions

diff --git a/include/qom/object.h b/include/qom/object.h
index a641dcde10..b882ccc85f 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -917,6 +917,34 @@ int64_t object_property_get_int(Object *obj, const char *name,
                                 Error **errp);
 
 /**
+ * object_property_get_enum:
+ * @obj: the object
+ * @name: the name of the property
+ * @strings: strings corresponding to enums
+ * @errp: returns an error if this function fails
+ *
+ * Returns: the value of the property, converted to an integer, or
+ * undefined if an error occurs (including when the property value is not
+ * an enum).
+ */
+int object_property_get_enum(Object *obj, const char *name,
+                             const char *strings[], Error **errp);
+
+/**
+ * object_property_get_uint16List:
+ * @obj: the object
+ * @name: the name of the property
+ * @list: the returned int list
+ * @errp: returns an error if this function fails
+ *
+ * Returns: the value of the property, converted to integers, or
+ * undefined if an error occurs (including when the property value is not
+ * an list of integers).
+ */
+void object_property_get_uint16List(Object *obj, const char *name,
+                                    uint16List **list, Error **errp);
+
+/**
  * object_property_set:
  * @obj: the object
  * @v: the visitor that will be used to write the property value.  This should
diff --git a/qom/object.c b/qom/object.c
index e42b254303..3876618c2e 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -13,6 +13,7 @@
 #include "qom/object.h"
 #include "qemu-common.h"
 #include "qapi/visitor.h"
+#include "qapi-visit.h"
 #include "qapi/string-input-visitor.h"
 #include "qapi/string-output-visitor.h"
 #include "qapi/qmp/qerror.h"
@@ -938,6 +939,40 @@ int64_t object_property_get_int(Object *obj, const char *name,
     return retval;
 }
 
+int object_property_get_enum(Object *obj, const char *name,
+                             const char *strings[], Error **errp)
+{
+    StringOutputVisitor *sov;
+    StringInputVisitor *siv;
+    int ret;
+
+    sov = string_output_visitor_new(false);
+    object_property_get(obj, string_output_get_visitor(sov), name, errp);
+    siv = string_input_visitor_new(string_output_get_string(sov));
+    string_output_visitor_cleanup(sov);
+    visit_type_enum(string_input_get_visitor(siv),
+                    &ret, strings, NULL, name, errp);
+    string_input_visitor_cleanup(siv);
+
+    return ret;
+}
+
+void object_property_get_uint16List(Object *obj, const char *name,
+                                    uint16List **list, Error **errp)
+{
+    StringOutputVisitor *ov;
+    StringInputVisitor *iv;
+
+    ov = string_output_visitor_new(false);
+    object_property_get(obj, string_output_get_visitor(ov),
+                        name, errp);
+    iv = string_input_visitor_new(string_output_get_string(ov));
+    visit_type_uint16List(string_input_get_visitor(iv),
+                          list, NULL, errp);
+    string_output_visitor_cleanup(ov);
+    string_input_visitor_cleanup(iv);
+}
+
 void object_property_parse(Object *obj, const char *string,
                            const char *name, Error **errp)
 {