[glib] Timeout the test if dbus sevice has not appeared in due time.

[Colin Walters <walters src gnome org>]

commit c9cc0beb3a8c298b843efdb71822a71cc078a8ac
Author: Josep Puigdemont <josep puigdemont enea com>
Date:   Tue May 21 16:46:25 2013 +0200

    Timeout the test if dbus sevice has not appeared in due time.
    
    The test /gdbus/connection/large_message waits for a dbus name to appear.
    The dbus name is created by a another process executed in the background.
    If for some reason this fails, the test will likely wait forever.
    This will avoid this situation by making the test fail if the dbus service
    has not appeared after 10 seconds.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=698981

 gio/tests/gdbus-connection-slow.c |   21 ++++++++++++++++++++-
 1 files changed, 20 insertions(+), 1 deletions(-)
---
diff --git a/gio/tests/gdbus-connection-slow.c b/gio/tests/gdbus-connection-slow.c
index 889a75e..e4b79df 100644
--- a/gio/tests/gdbus-connection-slow.c
+++ b/gio/tests/gdbus-connection-slow.c
@@ -120,6 +120,18 @@ test_connection_flush (void)
  * is fragmented when shoved across any transport
  */
 #define LARGE_MESSAGE_STRING_LENGTH (20*1024*1024)
+/* the test will fail if the service name has not appeared after this amount of seconds */
+#define LARGE_MESSAGE_TIMEOUT_SECONDS 10
+
+static gboolean
+large_message_timeout_cb (gpointer data)
+{
+  (void)data;
+
+  g_error ("Error: timeout waiting for dbus name to appear\n");
+
+  return FALSE;
+}
 
 static void
 large_message_on_name_appeared (GDBusConnection *connection,
@@ -133,6 +145,8 @@ large_message_on_name_appeared (GDBusConnection *connection,
   GVariant *result;
   guint n;
 
+  g_assert (g_source_remove (GPOINTER_TO_UINT (user_data)));
+
   request = g_new (gchar, LARGE_MESSAGE_STRING_LENGTH + 1);
   for (n = 0; n < LARGE_MESSAGE_STRING_LENGTH; n++)
     request[n] = '0' + (n%10);
@@ -175,6 +189,7 @@ test_connection_large_message (void)
 {
   guint watcher_id;
   gchar *path;
+  guint timeout_id;
 
   session_bus_up ();
 
@@ -183,12 +198,16 @@ test_connection_large_message (void)
   g_assert (g_spawn_command_line_async (path, NULL));
   g_free (path);
 
+  timeout_id = g_timeout_add_seconds (LARGE_MESSAGE_TIMEOUT_SECONDS,
+                                      large_message_timeout_cb,
+                                      NULL);
+
   watcher_id = g_bus_watch_name (G_BUS_TYPE_SESSION,
                                  "com.example.TestService",
                                  G_BUS_NAME_WATCHER_FLAGS_NONE,
                                  large_message_on_name_appeared,
                                  large_message_on_name_vanished,
-                                 NULL,  /* user_data */
+                                 GUINT_TO_POINTER (timeout_id),  /* user_data */
                                  NULL); /* GDestroyNotify */
   g_main_loop_run (loop);
   g_bus_unwatch_name (watcher_id);