DBusConnection: use atomic accesses to refcount in assertions/initial ref

Reviewed-by: Cosimo Alfarano <cosimo.alfarano@collabora.co.uk>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=38005

1 files changed, 6 insertions, 5 deletions

diff --git a/dbus/dbus-connection.c b/dbus/dbus-connection.c
index 4b74341c..8b8310dd 100644
--- a/dbus/dbus-connection.c
+++ b/dbus/dbus-connection.c
@@ -1318,8 +1318,9 @@ _dbus_connection_new_for_transport (DBusTransport *transport)
   
   if (_dbus_modify_sigpipe)
     _dbus_disable_sigpipe ();
-  
-  connection->refcount.value = 1;
+
+  /* initialized to 0: use atomic op to avoid mixing atomic and non-atomic */
+  _dbus_atomic_inc (&connection->refcount);
   connection->transport = transport;
   connection->watches = watch_list;
   connection->timeouts = timeout_list;
@@ -2655,9 +2656,9 @@ _dbus_connection_last_unref (DBusConnection *connection)
   DBusList *link;
 
   _dbus_verbose ("Finalizing connection %p\n", connection);
-  
-  _dbus_assert (connection->refcount.value == 0);
-  
+
+  _dbus_assert (_dbus_atomic_get (&connection->refcount) == 0);
+
   /* You have to disconnect the connection before unref:ing it. Otherwise
    * you won't get the disconnected message.
    */