__malloc char *being_deleted_name(struct snapshot *s);
int complete_name(int64_t start, int64_t end, char **result);
__malloc char *name_of_newest_complete_snapshot(struct snapshot_list *sl);
__malloc char *being_deleted_name(struct snapshot *s);
int complete_name(int64_t start, int64_t end, char **result);
__malloc char *name_of_newest_complete_snapshot(struct snapshot_list *sl);