int g_cancellable_get_fd (GCancellable *cancellable);
gboolean g_cancellable_make_pollfd (GCancellable *cancellable,
GPollFD *pollfd);
+void g_cancellable_release_fd (GCancellable *cancellable);
+
+GSource * g_cancellable_source_new (GCancellable *cancellable);
GCancellable *g_cancellable_get_current (void);
void g_cancellable_push_current (GCancellable *cancellable);