[Qemu-devel] [RFC 3/3 v2] qdev: set globals on post_init() function

[Eduardo Habkost <ehabkost@redhat.com>]

This way, properties registered in the instance_init() function of
children classes will be handled properly by qdev_prop_set_globals(),
too.

Includes a new unit test for the new functionality.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 hw/core/qdev.c                 | 10 +++++-
 tests/test-qdev-global-props.c | 71 +++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 79 insertions(+), 2 deletions(-)

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 9190a7e..e0acb6c 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -752,7 +752,6 @@ static void device_initfn(Object *obj)
         }
         class = object_class_get_parent(class);
     } while (class != object_class_by_name(TYPE_DEVICE));
-    qdev_prop_set_globals(dev, &err);
     if (err != NULL) {
         qerror_report_err(err);
         error_free(err);
@@ -764,6 +763,14 @@ static void device_initfn(Object *obj)
     assert_no_error(err);
 }
 
+static void device_post_init(Object *obj)
+{
+    Error *err = NULL;
+    DeviceState *dev = DEVICE(obj);
+    qdev_prop_set_globals(dev, &err);
+    assert_no_error(err);
+}
+
 /* Unlink device from bus and free the structure.  */
 static void device_finalize(Object *obj)
 {
@@ -853,6 +860,7 @@ static const TypeInfo device_type_info = {
     .parent = TYPE_OBJECT,
     .instance_size = sizeof(DeviceState),
     .instance_init = device_initfn,
+    .instance_post_init = device_post_init,
     .instance_finalize = device_finalize,
     .class_base_init = device_class_base_init,
     .class_init = device_class_init,
diff --git a/tests/test-qdev-global-props.c b/tests/test-qdev-global-props.c
index 4c50156..7b5eb88 100644
--- a/tests/test-qdev-global-props.c
+++ b/tests/test-qdev-global-props.c
@@ -26,6 +26,8 @@
 #include <stdint.h>
 
 #include "hw/qdev.h"
+#include "qemu/object.h"
+#include "qapi-visit.h"
 
 
 #define TYPE_STATIC_PROPS "static_prop_type"
@@ -80,7 +82,7 @@ static void test_static_prop(void)
 static void test_static_globalprop(void)
 {
     MyType *mt;
-    GlobalProperty props[] = {
+    static GlobalProperty props[] = {
         {TYPE_STATIC_PROPS, "prop1", "200"},
         {}
     };
@@ -93,15 +95,82 @@ static void test_static_globalprop(void)
     g_assert_cmpuint(mt->prop2, ==, PROP_DEFAULT);
 }
 
+#define TYPE_DYNAMIC_PROPS "dynamic_prop_type"
+#define DYNAMIC_TYPE(obj) \
+     OBJECT_CHECK(MyType, (obj), TYPE_DYNAMIC_PROPS)
+
+static void prop1_acessor(Object *obj,
+                          struct Visitor *v,
+                          void *opaque,
+                          const char *name,
+                          struct Error **errp)
+{
+    MyType *mt = DYNAMIC_TYPE(obj);
+    visit_type_uint32(v, &mt->prop1, name, errp);
+}
+
+static void prop2_acessor(Object *obj,
+                          struct Visitor *v,
+                          void *opaque,
+                          const char *name,
+                          struct Error **errp)
+{
+    MyType *mt = DYNAMIC_TYPE(obj);
+    visit_type_uint32(v, &mt->prop2, name, errp);
+}
+
+static void dynamic_instance_init(Object *obj)
+{
+    object_property_add(obj, "prop1", "uint32", prop1_acessor, prop1_acessor,
+                        NULL, NULL, NULL);
+    object_property_add(obj, "prop2", "uint32", prop2_acessor, prop2_acessor,
+                        NULL, NULL, NULL);
+}
+
+static void dynamic_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    dc->init = mytype_init;
+}
+
+
+static TypeInfo dynamic_prop_type = {
+    .name = TYPE_DYNAMIC_PROPS,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(MyType),
+    .instance_init = dynamic_instance_init,
+    .class_init = dynamic_class_init,
+};
+
+/* Test setting of static property using global properties */
+static void test_dynamic_globalprop(void)
+{
+    MyType *mt;
+    static GlobalProperty props[] = {
+        {TYPE_DYNAMIC_PROPS, "prop1", "101"},
+        {TYPE_DYNAMIC_PROPS, "prop2", "102"},
+        {}
+    };
+    qdev_prop_register_global_list(props);
+
+    mt = DYNAMIC_TYPE(object_new(TYPE_DYNAMIC_PROPS));
+    qdev_init_nofail(DEVICE(mt));
+
+    g_assert_cmpuint(mt->prop1, ==, 101);
+    g_assert_cmpuint(mt->prop2, ==, 102);
+}
+
 int main(int argc, char **argv)
 {
     module_call_init(MODULE_INIT_QOM);
     type_register_static(&static_prop_type);
+    type_register_static(&dynamic_prop_type);
 
     g_test_init(&argc, &argv, NULL);
 
     g_test_add_func("/qdev/properties/static/default", test_static_prop);
     g_test_add_func("/qdev/properties/static/global", test_static_globalprop);
+    g_test_add_func("/qdev/properties/dynamic/global", test_dynamic_globalprop);
 
     g_test_run();
 
-- 
1.8.1.4