+/* GC handles support
+ *
+ * A handle can be created to refer to a managed object and either prevent it
+ * from being garbage collected or moved or to be able to know if it has been
+ * collected or not (weak references).
+ * mono_gchandle_new () is used to prevent an object from being garbage collected
+ * until mono_gchandle_free() is called. Use a TRUE value for the pinned argument to
+ * prevent the object from being moved (this should be avoided as much as possible
+ * and this should be used only for shorts periods of time or performance will suffer).
+ * To create a weakref use mono_gchandle_new_weakref (): track_resurrection should
+ * usually be false (see the GC docs for more details).
+ * mono_gchandle_get_target () can be used to get the object referenced by both kinds
+ * of handle: for a weakref handle, if an object has been collected, it will return NULL.
+ */
+guint32 mono_gchandle_new (MonoObject *obj, gboolean pinned);
+guint32 mono_gchandle_new_weakref (MonoObject *obj, gboolean track_resurrection);
+MonoObject* mono_gchandle_get_target (guint32 gchandle);
+void mono_gchandle_free (guint32 gchandle);
+
+/* GC write barriers support */
+void mono_gc_wbarrier_set_field (MonoObject *obj, gpointer field_ptr, MonoObject* value);
+void mono_gc_wbarrier_set_arrayref (MonoArray *arr, gpointer slot_ptr, MonoObject* value);
+void mono_gc_wbarrier_arrayref_copy (MonoArray *arr, gpointer slot_ptr, int count);
+void mono_gc_wbarrier_generic_store (gpointer ptr, MonoObject* value);
+void mono_gc_wbarrier_value_copy (gpointer dest, gpointer src, int count, MonoClass *klass);
+void mono_gc_wbarrier_object (MonoObject* obj);
+
+G_END_DECLS
+