-extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
- struct timeval *);
-extern void add_iops_sample(struct thread_data *, enum fio_ddir, unsigned int,
- struct timeval *);
-extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
+extern void add_agg_sample(union io_sample_data, enum fio_ddir, unsigned int);
+extern void add_iops_sample(struct thread_data *, struct io_u *,
+ unsigned int);
+extern void add_bw_sample(struct thread_data *, struct io_u *,
+ unsigned int, unsigned long);
+extern int calc_log_samples(void);