-void db_save(float db, string filename);
-void db_dump(float db, string pFilename);
-float db_create();
-float db_load(string filename);
-void db_close(float db);
-string db_get(float db, string key);
-void db_put(float db, string key, string value);
+void db_save(int db, string filename);
+void db_dump(int db, string pFilename);
+int db_create();
+int db_load(string filename);
+void db_close(int db);
+string db_get(int db, string key);
+void db_put(int db, string key, string value);