+void init_edges(struct meshlink_handle *mesh);
+void exit_edges(struct meshlink_handle *mesh);
+edge_t *new_edge(void) __attribute__((__malloc__));
+void free_edge(edge_t *);
+struct splay_tree_t *new_edge_tree(void) __attribute__((__malloc__));
+void free_edge_tree(struct splay_tree_t *);
+void edge_add(struct meshlink_handle *mesh, edge_t *);
+void edge_del(struct meshlink_handle *mesh, edge_t *);
+edge_t *lookup_edge(struct node_t *, struct node_t *) __attribute__((__warn_unused_result__));
+
+#endif