Merge commit 'ca5e0414e96886177d883a249edd957d2331db65'

[bpt/guile.git] / libguile / finalizers.h

diff --git a/libguile/finalizers.h b/libguile/finalizers.h
index ad14d94..2ef0751 100644 (file)
--- a/libguile/finalizers.h
+++ b/libguile/finalizers.h
@@ -1,7 +1,7 @@
 #ifndef SCM_FINALIZERS_H
 #define SCM_FINALIZERS_H
 
-/* Copyright (C) 2012 Free Software Foundation, Inc.
+/* Copyright (C) 2012, 2013 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -36,6 +36,11 @@ SCM_INTERNAL void scm_i_add_resuscitator (void *obj, scm_t_finalizer_proc,
 
 SCM_INTERNAL void scm_i_finalizer_pre_fork (void);
 
+/* CALLBACK will be called on OBJ after each garbage collection, as long
+   as OBJ is accessible.  It will be called from a finalizer, which may
+   be from an async or from another thread. */
+SCM_INTERNAL void scm_i_register_weak_gc_callback (SCM obj, void (*callback) (SCM));
+
 SCM_INTERNAL void scm_init_finalizers (void);
 SCM_INTERNAL void scm_init_finalizer_thread (void);