+int emufs_b_plus_crear(INDEXSPECS *idx);
+int emufs_b_plus_get_bloque(INDEXSPECS *idx, INDEX_DAT *dataset);
+int emufs_b_plus_actualizar_nodo(INDEX_DAT *dataset);
+int emufs_b_plus_buscar();
+int emufs_b_plus_destuir();
+int b_plus_insertar_clave(INDEXSPECS *, INDEX_DAT *);
+NODO_B_PLUS *b_plus_leer_nodo(INDEXSPECS *idx, int num);