-void sgen_gray_object_enqueue (SgenGrayQueue *queue, char *obj, mword desc) MONO_INTERNAL;
-GrayQueueEntry sgen_gray_object_dequeue (SgenGrayQueue *queue) MONO_INTERNAL;
-GrayQueueSection* sgen_gray_object_dequeue_section (SgenGrayQueue *queue) MONO_INTERNAL;
-void sgen_gray_object_enqueue_section (SgenGrayQueue *queue, GrayQueueSection *section) MONO_INTERNAL;
-void sgen_gray_object_queue_trim_free_list (SgenGrayQueue *queue) MONO_INTERNAL;
-void sgen_gray_object_queue_init (SgenGrayQueue *queue, GrayQueueEnqueueCheckFunc enqueue_check_func) MONO_INTERNAL;
-void sgen_gray_object_queue_init_invalid (SgenGrayQueue *queue) MONO_INTERNAL;
+void sgen_gray_object_enqueue (SgenGrayQueue *queue, char *obj, mword desc);
+GrayQueueEntry sgen_gray_object_dequeue (SgenGrayQueue *queue);
+GrayQueueSection* sgen_gray_object_dequeue_section (SgenGrayQueue *queue);
+void sgen_gray_object_enqueue_section (SgenGrayQueue *queue, GrayQueueSection *section);
+void sgen_gray_object_queue_trim_free_list (SgenGrayQueue *queue);
+void sgen_gray_object_queue_init (SgenGrayQueue *queue, GrayQueueEnqueueCheckFunc enqueue_check_func);
+void sgen_gray_object_queue_init_invalid (SgenGrayQueue *queue);
+void sgen_gray_queue_set_alloc_prepare (SgenGrayQueue *queue, GrayQueueAllocPrepareFunc alloc_prepare_func, void *data);