- int (*fill_io_u_off)(struct thread_data *, struct io_u *);
- int (*fill_io_u_size)(struct thread_data *, struct io_u *);
- struct fio_file *(*get_next_file)(struct thread_data *);
+ int (*td_init)(struct thread_data *);
+ void (*td_exit)(struct thread_data *);
+
+ int (*io_u_lat)(struct thread_data *, uint64_t);