+XBT_PUBLIC void sg_link_load_plugin_init();
+XBT_PUBLIC void sg_link_load_track(const_sg_link_t link);
+XBT_PUBLIC void sg_link_load_untrack(const_sg_link_t link);
+XBT_PUBLIC void sg_link_load_reset(const_sg_link_t link);
+XBT_PUBLIC double sg_link_get_cum_load(const_sg_link_t link);
+XBT_PUBLIC double sg_link_get_avg_load(const_sg_link_t link);
+XBT_PUBLIC double sg_link_get_min_instantaneous_load(const_sg_link_t link);
+XBT_PUBLIC double sg_link_get_max_instantaneous_load(const_sg_link_t link);
+