Attachment 42473 Details for Bug 30834 – fix handling of properties from multiple interfaces

[patch] fix handling of properties from multiple interfaces

0001-Fix-handling-of-properties-and-multiple-interfaces-i.patch (text/plain), 22.71 KB, created by Dan Williams on 2011-01-25 09:01:04 UTC

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Creator: Dan Williams

Created: 2011-01-25 09:01:04 UTC

Size: 22.71 KB

patch

obsolete

>From 3da1328b214f652fa605999029d528c967aeef7b Mon Sep 17 00:00:00 2001
>From: Dan Williams <dcbw@redhat.com>
>Date: Mon, 24 Jan 2011 23:33:48 -0600
>Subject: [PATCH] Fix handling of properties and multiple interfaces in the same introspection data
>
>Given introspection XML like this:
>
><node name="/org/freedesktop/DBus/GLib/Test/TwoInterfaces">
>  <interface name="org.freedesktop.DBus.GLib.Test.Interfaces.Number1">
>    <property name="SomeProperty" type="s" access="read"/>
>  </interface>
>  <interface name="org.freedesktop.DBus.GLib.Test.Interfaces.Number2">
>    <property name="AnotherProperty" type="s" access="read"/>
>  </interface>
></node>
>
>With legacy property access disabled, properties from other interfaces
>should not be accessible on a given interface.  Second, those
>properties should be accessible from their named interface.  Neither
>of these things was the case.
>
>lookup_object_info_by_iface_cb() incorrectly checked only the first
>property when looking up the object info for a given interface, causing
>secondary interfaces to fail lookup, and thus Get/Set/GetAll requests
>for the secondary interfaces to fail.
>
>If legacy property access was disabled, lookup_property_name() should
>not have returned properties that did not match the requested interface.
>
>Third, in _dbus_gutils_wincaps_to_uscore(), a '-' should be replaced
>with a '_' so that requests for "foobar-baz" get converted into
>"foobar_baz" to match GObject property names used internally.
>---
> .gitignore                              |    6 +-
> dbus/dbus-gobject.c                     |   78 ++++++++++++++-
> dbus/dbus-gutils.c                      |    2 +-
> test/interfaces/Makefile.am             |   12 ++-
> test/interfaces/test-client.c           |  167 +++++++++++++++++++++++++++++++
> test/interfaces/test-server.c           |    8 ++
> test/interfaces/test-two-interfaces.c   |   81 +++++++++++++++
> test/interfaces/test-two-interfaces.h   |   28 +++++
> test/interfaces/test-two-interfaces.xml |   14 +++
> 9 files changed, 387 insertions(+), 9 deletions(-)
> create mode 100644 test/interfaces/test-two-interfaces.c
> create mode 100644 test/interfaces/test-two-interfaces.h
> create mode 100644 test/interfaces/test-two-interfaces.xml
>
>diff --git a/.gitignore b/.gitignore
>index 3bbaf2a..dbf41fa 100644
>--- a/.gitignore
>+++ b/.gitignore
>@@ -114,7 +114,6 @@ test/data/valid-service-files/debug-glib.service
> test/data/valid-service-files/test-interfaces.service.in
> test/data/valid-service-files/interfaces-test.service
> test/interfaces/test-service
>-test/interfaces/
> test/test-service
> tools/Makefile
> tools/Makefile.in
>@@ -212,14 +211,13 @@ test/core/test-types
> test/data/valid-service-files/debug-echo.service
> test/data/valid-service-files/debug-glib.service
> test/data/valid-service-files/test-interfaces.service.in
>-test/interfaces/
> test/test-service
> tools/Makefile
> tools/Makefile.in
> tools/dbus-bus-introspect.xml
> tools/dbus-glib-bindings.h
>-test/interfaces/*-dbus-binding.h
>-test/interfaces/*-dbus-glue.h
>+test/interfaces/*-bindings.h
>+test/interfaces/*-glue.h
> test/interfaces/test-server
> test/interfaces/test-client
> test/interfaces/test-goodbye-bindings.h
>diff --git a/dbus/dbus-gobject.c b/dbus/dbus-gobject.c
>index 98c08de..7e743f1 100644
>--- a/dbus/dbus-gobject.c
>+++ b/dbus/dbus-gobject.c
>@@ -504,10 +504,27 @@ lookup_object_info_by_iface_cb (const DBusGObjectInfo *info,
>       lookup_data->info = info;
>       lookup_data->iface_type = gtype;
>     }
>-  else if (info->exported_properties && !strcmp (info->exported_properties, lookup_data->iface))
>+  else
>     {
>-      lookup_data->info = info;
>-      lookup_data->iface_type = gtype;
>+      const char *propsig;
>+
>+      /* Iterate over properties until we find one with the requested interface */
>+      propsig = info->exported_properties;
>+      while (propsig != NULL && *propsig)
>+        {
>+          const char *iface;
>+          const char *propname;
>+          const char *propname_uscore;
>+          const char *access_type;
>+
>+          propsig = property_iterate (propsig, info->format_version, &iface, &propname, &propname_uscore, &access_type);
>+          if (g_strcmp0 (iface, lookup_data->iface) == 0)
>+            {
>+              lookup_data->info = info;
>+              lookup_data->iface_type = gtype;
>+              break;
>+            }
>+        }
>     }
> 
>   return !lookup_data->info;
>@@ -1056,6 +1073,8 @@ lookup_property_name (GObject    *object,
>   GHashTable *shadow_props;
>   char *shadow_prop_name = NULL, *uscore_name;
>   GType iface_type = 0;
>+  const char *propsig;
>+  gboolean found = FALSE;
> 
>   g_assert (wincaps_propiface != NULL);
>   g_assert (requested_propname != NULL);
>@@ -1066,6 +1085,39 @@ lookup_property_name (GObject    *object,
>   if (!object_info)
>     return uscore_name;
> 
>+  /* Only enforce that the property was found in the object info if legacy
>+   * property access is disabled.
>+   */
>+  if (disable_legacy_property_access == TRUE)
>+    {
>+      /* Iterate over properties until we find one with the requested interface */
>+      propsig = object_info->exported_properties;
>+      while (propsig != NULL && *propsig)
>+        {
>+          const char *piface;
>+          const char *pname;
>+          const char *puscore;
>+          const char *access_type;
>+
>+          propsig = property_iterate (propsig, object_info->format_version, &piface, &pname, &puscore, &access_type);
>+          if (g_strcmp0 (piface, wincaps_propiface) == 0 &&
>+              (g_strcmp0 (pname, requested_propname) == 0 ||
>+               g_strcmp0 (puscore, requested_propname) == 0 ||
>+               g_strcmp0 (pname, uscore_name) == 0 ||
>+               g_strcmp0 (puscore, uscore_name) == 0))
>+            {
>+              found = TRUE;
>+              break;
>+            }
>+        }
>+
>+      if (found == FALSE)
>+        {
>+          g_free (uscore_name);
>+          return NULL;
>+        }
>+    }
>+
>   shadow_props = (GHashTable *) g_type_get_qdata (iface_type, SHADOW_PROP_QUARK);
>   if (shadow_props)
>     {
>@@ -1171,7 +1223,16 @@ get_all_object_properties (DBusConnection        *connection,
> 
>       p = property_iterate (p, object_info->format_version, &prop_ifname, &prop_name, &prop_uscored, &access_flags);
> 
>+      /* Ensure we ignore properties owned by other interfaces that might be
>+       * in the introspection data if the object exports two interfaces in the
>+       * same DBusGObjectInfo.
>+       */
>+      if (g_strcmp0 (prop_ifname, wincaps_propiface))
>+        continue;
>+
>       uscore_propname = lookup_property_name (object, wincaps_propiface, prop_name);
>+      if (uscore_propname == NULL)
>+        continue;
> 
>       pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (object), uscore_propname);
>       if (pspec == NULL)
>@@ -1995,6 +2056,17 @@ object_registration_message (DBusConnection  *connection,
>       dbus_message_iter_next (&iter);
> 
>       s = lookup_property_name (object, wincaps_propiface, requested_propname);
>+      if (s == NULL)
>+        {
>+           ret = dbus_message_new_error_printf (message,
>+                                                DBUS_ERROR_ACCESS_DENIED,
>+                                                "Property \"%s\" of interface \"%s\" isn't exported (or may not exist)",
>+                                                requested_propname,
>+                                                wincaps_propiface);
>+           dbus_connection_send (connection, ret, NULL);
>+           dbus_message_unref (ret);
>+           return DBUS_HANDLER_RESULT_HANDLED;
>+        }
> 
>       if (!check_property_access (connection, message, object, wincaps_propiface, requested_propname, s, setter))
>         {
>diff --git a/dbus/dbus-gutils.c b/dbus/dbus-gutils.c
>index e882282..1dfe0af 100644
>--- a/dbus/dbus-gutils.c
>+++ b/dbus/dbus-gutils.c
>@@ -102,7 +102,7 @@ _dbus_gutils_wincaps_to_uscore (const char *caps)
>         }
>       else
>         {
>-          g_string_append_c (str, *p);
>+          g_string_append_c (str, (*p == '-') ? '_' : *p);
>         }
>       ++p;
>     }
>diff --git a/test/interfaces/Makefile.am b/test/interfaces/Makefile.am
>index ed5bc16..3911714 100644
>--- a/test/interfaces/Makefile.am
>+++ b/test/interfaces/Makefile.am
>@@ -35,6 +35,8 @@ test_service_SOURCES = \
> 	test-dup-prop.h \
> 	test-objects.c \
> 	test-objects.h \
>+	test-two-interfaces.c \
>+	test-two-interfaces.h \
> 	test-server.c
> 
> test_client_SOURCES = \
>@@ -46,13 +48,15 @@ BUILT_SOURCES = \
> 	test-goodbye-glue.h	\
> 	test-dup-prop-a-glue.h	\
> 	test-dup-prop-b-glue.h	\
>+	test-two-interfaces-glue.h \
> 	test-song-bindings.h	\
> 	test-hello-bindings.h	\
> 	test-goodbye-bindings.h	\
> 	test-dup-prop-a-bindings.h \
> 	test-dup-prop-a-bindings.h \
> 	test-dup-prop-b-bindings.h \
>-	test-dup-prop-b-bindings.h
>+	test-dup-prop-b-bindings.h \
>+	test-two-interfaces-bindings.h
> 
> test-song-glue.h: test-song.xml $(top_builddir)/dbus/dbus-binding-tool$(EXEEXT)
> 	$(DBUS_BINDING_TOOL) --prefix=test_song --mode=glib-server --output=test-song-glue.h $(srcdir)/test-song.xml
>@@ -84,6 +88,12 @@ test-dup-prop-b-glue.h: test-dup-prop-b.xml $(top_builddir)/dbus/dbus-binding-to
> test-dup-prop-b-bindings.h: test-dup-prop-b.xml $(top_builddir)/dbus/dbus-binding-tool$(EXEEXT)
> 	$(DBUS_BINDING_TOOL) --prefix=test_dup_prop_b --mode=glib-client --output=test-dup-prop-b-bindings.h $(srcdir)/test-dup-prop-b.xml
> 
>+test-two-interfaces-glue.h: test-two-interfaces.xml $(top_builddir)/dbus/dbus-binding-tool$(EXEEXT)
>+	$(DBUS_BINDING_TOOL) --prefix=test_two_interfaces --mode=glib-server --output=test-two-interfaces-glue.h $(srcdir)/test-two-interfaces.xml
>+
>+test-two-interfaces-bindings.h: test-two-interfaces.xml $(top_builddir)/dbus/dbus-binding-tool$(EXEEXT)
>+	$(DBUS_BINDING_TOOL) --prefix=test_two_interfaces --mode=glib-client --output=test-two-interfaces-bindings.h $(srcdir)/test-two-interfaces.xml
>+
> 
> CLEANFILES = \
> 	$(BUILT_SOURCES) \
>diff --git a/test/interfaces/test-client.c b/test/interfaces/test-client.c
>index 9c254cc..5bb69bb 100644
>--- a/test/interfaces/test-client.c
>+++ b/test/interfaces/test-client.c
>@@ -6,14 +6,19 @@
> #include "test-goodbye-bindings.h"
> #include "test-dup-prop-a-bindings.h"
> #include "test-dup-prop-b-bindings.h"
>+#include "test-two-interfaces-bindings.h"
> 
> #define TEST_NAMESPACE "org.freedesktop.DBus.GLib.Test.Interfaces"
> #define TEST_OBJECT_PATH "/org/freedesktop/DBus/GLib/Test/Interfaces"
> #define TEST_DP_OBJECT_PATH "/org/freedesktop/DBus/GLib/Test/DupPropInterfaces"
>+#define TEST_TWO_INTERFACES_OBJECT_PATH "/org/freedesktop/DBus/GLib/Test/TwoInterfaces"
> 
> #define TEST_DP_IFACE_A "org.freedesktop.DBus.GLib.Test.Interfaces.A"
> #define TEST_DP_IFACE_B "org.freedesktop.DBus.GLib.Test.Interfaces.B"
> 
>+#define TEST_TWO_INTERFACES_IFACE_1 "org.freedesktop.DBus.GLib.Test.Interfaces.Number1"
>+#define TEST_TWO_INTERFACES_IFACE_2 "org.freedesktop.DBus.GLib.Test.Interfaces.Number2"
>+
> static void
> test_dp_property (DBusGProxy *proxy,
>                   const char *detail,
>@@ -81,6 +86,126 @@ test_dp_property (DBusGProxy *proxy,
>       g_print ("Got DupProp Interface %s property value matched expected\n", detail);
> }
> 
>+#define DBUS_TYPE_G_MAP_OF_VARIANT (dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE))
>+static void
>+test_ti_property_all (DBusGProxy *proxy,
>+                      const char *detail,
>+                      const char *iface,
>+                      const char *propname,
>+                      const char *expected,
>+                      const char *bad_propname)
>+{
>+  GError *error = NULL;
>+  gboolean success;
>+  GValue get_value = {0,};
>+  GHashTable *hash = NULL;
>+  GHashTableIter iter;
>+  gboolean found = FALSE;
>+  gpointer key, data;
>+
>+  success = dbus_g_proxy_call (proxy, "GetAll", &error,
>+                               G_TYPE_STRING, iface,
>+                               G_TYPE_INVALID,
>+                               DBUS_TYPE_G_MAP_OF_VARIANT, &hash,
>+                               G_TYPE_INVALID);
>+  if (!success)
>+    {
>+      g_print ("Error while getting TwoInterface %s properties: %s\n", detail, error->message);
>+      g_error_free (error);
>+      exit(1);
>+    }
>+  else
>+    g_print ("Got TwoInterface %s property with success\n", detail);
>+
>+  g_hash_table_iter_init (&iter, hash);
>+  while (g_hash_table_iter_next (&iter, &key, &data)) {
>+    const GValue *val = data;
>+
>+
>+    /* Check for a property name we're not supposed to find */
>+    if (g_strcmp0 (key, bad_propname) == 0)
>+      {
>+        g_print ("Found unexpected TwoInterface %s property %s\n",
>+                 detail, bad_propname);
>+        exit(1);
>+      }
>+
>+    if (g_strcmp0 (key, propname) == 0) {
>+      if (!G_VALUE_HOLDS_STRING (val))
>+        {
>+          g_print ("Error comparing TwoInterface %s property %s: unexpected type %s\n",
>+                   detail, propname, G_VALUE_TYPE_NAME (val));
>+          exit(1);
>+        }
>+      else if (strcmp (g_value_get_string (val), expected) != 0)
>+        {
>+          g_print ("Error comparing TwoInterface %s property: expected %s, got %s\n",
>+                   detail, expected, g_value_get_string (&get_value));
>+          exit(1);
>+        }
>+      else
>+        {
>+          g_print ("Got TwoInterface %s property value matched expected\n", detail);
>+          found = TRUE;
>+          break;
>+        }
>+    }
>+  }
>+
>+  if (found == FALSE)
>+    {
>+      g_print ("Failed to find TwoInterface %s property %s\n",
>+               detail, propname);
>+      exit(1);
>+    }
>+}
>+
>+static void
>+test_ti_property_get (DBusGProxy *proxy,
>+                      const char *detail,
>+                      const char *iface,
>+                      const char *propname,
>+                      const char *expected)
>+{
>+  GError *error = NULL;
>+  gboolean success;
>+  GValue get_value = {0,};
>+
>+  success = dbus_g_proxy_call (proxy, "Get", &error,
>+                               G_TYPE_STRING, iface,
>+                               G_TYPE_STRING, propname,
>+                               G_TYPE_INVALID,
>+                               G_TYPE_VALUE, &get_value,
>+                               G_TYPE_INVALID);
>+  if (!success)
>+    {
>+      /* perhaps we expected failure because we know the property isn't there */
>+      if (expected == NULL)
>+        return;
>+
>+      g_print ("Error while getting TwoInterface %s property: %s\n", detail, error->message);
>+      g_error_free (error);
>+      exit(1);
>+    }
>+  else
>+      g_print ("Got TwoInterface %s property with success\n", detail);
>+
>+  if (!G_VALUE_HOLDS_STRING (&get_value))
>+    {
>+      g_print ("Error comparing TwoInterface %s property: unexpected type %s\n",
>+               detail, G_VALUE_TYPE_NAME (&get_value));
>+      exit(1);
>+    }
>+  else if (g_strcmp0 (g_value_get_string (&get_value), expected) != 0)
>+    {
>+      g_print ("Error comparing TwoInterface %s property: expected %s, got %s\n",
>+               detail, expected, g_value_get_string (&get_value));
>+      exit(1);
>+    }
>+  else
>+      g_print ("Got TwoInterface %s property value matched expected\n", detail);
>+}
>+
> int
> main (int    argc,
>       char **argv)
>@@ -91,6 +216,8 @@ main (int    argc,
>   gchar *str;
>   gboolean success;
>   DBusGProxy *dp_proxy;
>+  DBusGProxy *ti_proxy;
>+  DBusGProxy *tmp_proxy;
> 
>   g_type_init ();
> 
>@@ -264,6 +391,46 @@ main (int    argc,
>       }
>   }
> 
>+  /* Test that dbus-glib correctly exports an object that has two separate
>+   * interfaces in it's introspection XML, such that dbus-glib puts the
>+   * properties for each interface on that interface, and does not forget
>+   * the second interface entirely.
>+   */
>+  ti_proxy = dbus_g_proxy_new_for_name (connection, TEST_NAMESPACE,
>+                                        TEST_TWO_INTERFACES_OBJECT_PATH,
>+                                        "org.freedesktop.DBus.Properties");
>+
>+  /* If legacy property access is enabled, we expect to be able to read
>+   * all properties of the object no matter what interface.
>+   */
>+  test_ti_property_get (ti_proxy, "1", TEST_TWO_INTERFACES_IFACE_1, "AnotherProperty", "another property value");
>+  test_ti_property_get (ti_proxy, "2", TEST_TWO_INTERFACES_IFACE_2, "SomeProperty", "some property value");
>+
>+  /* If legacy property access is disabled, we expect that attempting to read
>+   * a property we know is not part of an interface will fail.
>+   */
>+  tmp_proxy = dbus_g_proxy_new_for_name (connection, TEST_NAMESPACE,
>+                                         TEST_TWO_INTERFACES_OBJECT_PATH,
>+                                         "org.freedesktop.DBus.GLib.Test.Interfaces.Number1");
>+
>+  if (!org_freedesktop_DBus_GLib_Test_Interfaces_Number1_disable_legacy_prop_access (tmp_proxy, &error))
>+    {
>+      g_print ("Failed to disable legacy property access\n");
>+      g_error_free (error);
>+      exit(1);
>+    }
>+
>+  test_ti_property_get (ti_proxy, "1", TEST_TWO_INTERFACES_IFACE_1, "AnotherProperty", NULL);
>+  test_ti_property_get (ti_proxy, "2", TEST_TWO_INTERFACES_IFACE_2, "SomeProperty", NULL);
>+
>+  /* Test that a GetAll of the interface doesn't return a property from the
>+   * other interface.
>+   */
>+  test_ti_property_all (ti_proxy, "1", TEST_TWO_INTERFACES_IFACE_1,
>+                        "SomeProperty", "some property value", "AnotherProperty");
>+  test_ti_property_all (ti_proxy, "2", TEST_TWO_INTERFACES_IFACE_2,
>+                        "AnotherProperty", "another property value", "SomeProperty");
>+
>   exit(0);
> }
> 
>diff --git a/test/interfaces/test-server.c b/test/interfaces/test-server.c
>index fcf1b09..9427d08 100644
>--- a/test/interfaces/test-server.c
>+++ b/test/interfaces/test-server.c
>@@ -3,10 +3,12 @@
> #include "tools/dbus-glib-bindings.h"
> #include "test-objects.h"
> #include "test-dup-prop.h"
>+#include "test-two-interfaces.h"
> 
> #define TEST_NAMESPACE "org.freedesktop.DBus.GLib.Test.Interfaces"
> #define TEST_OBJECT_PATH "/org/freedesktop/DBus/GLib/Test/Interfaces"
> #define TEST_DP_OBJECT_PATH "/org/freedesktop/DBus/GLib/Test/DupPropInterfaces"
>+#define TEST_TWO_INTERFACES_OBJECT_PATH "/org/freedesktop/DBus/GLib/Test/TwoInterfaces"
> 
> static GMainLoop *loop = NULL;
> 
>@@ -20,6 +22,7 @@ main (int    argc,
> 	guint32 ret;
> 	TestBeatlesSong *song;
> 	TestDpObj *dp_obj;
>+	TestTwoInterfaces *ti_obj;
> 
> 	g_type_init ();
> 
>@@ -59,6 +62,11 @@ main (int    argc,
> 					     TEST_DP_OBJECT_PATH,
> 					     G_OBJECT (dp_obj));
> 
>+	ti_obj = test_two_interfaces_new ();
>+	dbus_g_connection_register_g_object (connection,
>+					     TEST_TWO_INTERFACES_OBJECT_PATH,
>+					     G_OBJECT (ti_obj));
>+
> 	loop = g_main_loop_new (NULL, FALSE);
> 	g_main_loop_run (loop);
> 
>diff --git a/test/interfaces/test-two-interfaces.c b/test/interfaces/test-two-interfaces.c
>new file mode 100644
>index 0000000..03353c9
>--- /dev/null
>+++ b/test/interfaces/test-two-interfaces.c
>@@ -0,0 +1,81 @@
>+#ifdef HAVE_CONFIG_H
>+#	include <config.h>
>+#endif
>+#include <dbus/dbus-glib.h>
>+#include "test-two-interfaces.h"
>+
>+G_DEFINE_TYPE (TestTwoInterfaces, test_two_interfaces, G_TYPE_OBJECT)
>+
>+enum {
>+  PROP_0,
>+  PROP_SOME_PROPERTY,
>+  PROP_ANOTHER_PROPERTY,
>+  LAST_PROP
>+};
>+
>+static gboolean
>+test_two_interfaces_disable_legacy_prop_access (TestTwoInterfaces *obj,
>+                                                GError **error)
>+{
>+  dbus_glib_global_set_disable_legacy_property_access ();
>+  return TRUE;
>+}
>+
>+#include "test-two-interfaces-glue.h"
>+
>+TestTwoInterfaces *
>+test_two_interfaces_new (void)
>+{
>+  return (TestTwoInterfaces *) g_object_new (TEST_TYPE_TWO_INTERFACES, NULL);
>+}
>+
>+static void
>+test_two_interfaces_init (TestTwoInterfaces *obj)
>+{
>+}
>+
>+static void
>+get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
>+{
>+  switch (prop_id) {
>+  case PROP_SOME_PROPERTY:
>+    g_value_set_string (value, "some property value");
>+    break;
>+  case PROP_ANOTHER_PROPERTY:
>+    g_value_set_string (value, "another property value");
>+    break;
>+  default:
>+    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
>+    break;
>+  }
>+}
>+
>+static void
>+test_two_interfaces_class_init (TestTwoInterfacesClass *tclass)
>+{
>+  GObjectClass *object_class = G_OBJECT_CLASS (tclass);
>+
>+  object_class->get_property = get_property;
>+
>+  /* This property is a member of the
>+   * org.freedesktop.DBus.GLib.Test.Interfaces.Number1 interface
>+   */
>+  g_object_class_install_property (object_class, PROP_SOME_PROPERTY,
>+    g_param_spec_string (TEST_TWO_INTERFACES_SOME_PROPERTY,
>+                         "Some Property",
>+                         "Some Property",
>+                         NULL, G_PARAM_READABLE));
>+
>+  /* This property is a member of the
>+   * org.freedesktop.DBus.GLib.Test.Interfaces.Number2 interface
>+   */
>+  g_object_class_install_property (object_class, PROP_ANOTHER_PROPERTY,
>+    g_param_spec_string (TEST_TWO_INTERFACES_ANOTHER_PROPERTY,
>+                         "Another Property",
>+                         "Another Property",
>+                         NULL, G_PARAM_READABLE));
>+
>+  dbus_g_object_type_install_info (G_TYPE_FROM_CLASS (object_class),
>+                                   &dbus_glib_test_two_interfaces_object_info);
>+}
>+
>diff --git a/test/interfaces/test-two-interfaces.h b/test/interfaces/test-two-interfaces.h
>new file mode 100644
>index 0000000..efd14dd
>--- /dev/null
>+++ b/test/interfaces/test-two-interfaces.h
>@@ -0,0 +1,28 @@
>+#ifndef __TEST_TWO_INTERFACES_H__
>+#define __TEST_TWO_INTERFACES_H__
>+
>+#include <glib-object.h>
>+
>+#define TEST_TYPE_TWO_INTERFACES            (test_two_interfaces_get_type ())
>+#define TEST_TWO_INTERFACES(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), TEST_TYPE_TWO_INTERFACES, TestTwoInterfaces))
>+#define TEST_TWO_INTERFACES_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), TEST_TYPE_TWO_INTERFACES, TestTwoInterfacesClass))
>+#define TEST_IS_TWO_INTERFACES(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TEST_TYPE_TWO_INTERFACES))
>+#define TEST_IS_TWO_INTERFACES_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((obj), TEST_TYPE_TWO_INTERFACES))
>+#define TEST_TWO_INTERFACES_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), TEST_TYPE_TWO_INTERFACES, TestTwoInterfacesClass))
>+
>+#define TEST_TWO_INTERFACES_SOME_PROPERTY "some-property"
>+#define TEST_TWO_INTERFACES_ANOTHER_PROPERTY "another-property"
>+
>+typedef struct {
>+  GObject parent;
>+} TestTwoInterfaces;
>+
>+typedef struct {
>+  GObjectClass parent;
>+} TestTwoInterfacesClass;
>+
>+GType test_two_interfaces_get_type (void);
>+
>+TestTwoInterfaces *test_two_interfaces_new (void);
>+
>+#endif /* __TEST_TWO_INTERFACES_H__ */
>diff --git a/test/interfaces/test-two-interfaces.xml b/test/interfaces/test-two-interfaces.xml
>new file mode 100644
>index 0000000..6df6460
>--- /dev/null
>+++ b/test/interfaces/test-two-interfaces.xml
>@@ -0,0 +1,14 @@
>+<?xml version="1.0" encoding="UTF-8" ?>
>+<node name="/org/freedesktop/DBus/GLib/Test/TwoInterfaces">
>+  <interface name="org.freedesktop.DBus.GLib.Test.Interfaces.Number1">
>+    <property name="SomeProperty" type="s" access="read"/>
>+
>+    <annotation name="org.freedesktop.DBus.GLib.CSymbol" value="test_two_interfaces"/>
>+    <method name="DisableLegacyPropAccess"/>
>+  </interface>
>+
>+  <interface name="org.freedesktop.DBus.GLib.Test.Interfaces.Number2">
>+    <property name="AnotherProperty" type="s" access="read"/>
>+  </interface>
>+</node>
>+
>-- 
>1.7.3.5
>

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