void unit_file_list_free(Hashmap *h);
void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes);
-int unit_file_query_preset(UnitFileScope scope, const char *name);
+int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name);
const char *unit_file_state_to_string(UnitFileState s) _const_;
UnitFileState unit_file_state_from_string(const char *s) _pure_;