-// ========== RoutingEdge ============
-surf_NetCard *sg_host_edge(sg_host_t host) {
- return (surf_NetCard*) host->extension(ROUTING_HOST_LEVEL);
-}
-void sg_host_edge_set(sg_host_t host, surf_NetCard *edge) {
- host->extension_set(ROUTING_HOST_LEVEL, edge);
-}
-void sg_host_edge_destroy(sg_host_t host, int do_callback) {
- host->extension_set(ROUTING_HOST_LEVEL, nullptr, do_callback);
-}
-