int score_update(const struct osl_row *aft_row, long new_score);
int get_num_admissible_files(unsigned *num);
int score_delete(const struct osl_row *aft_row);
int score_update(const struct osl_row *aft_row, long new_score);
int get_num_admissible_files(unsigned *num);
int score_delete(const struct osl_row *aft_row);