extern void finalize_logs(struct thread_data *td);
extern void setup_log(struct io_log **, struct log_params *, const char *);
extern void flush_log(struct io_log *, int);
+extern void flush_samples(FILE *, void *, uint64_t);
extern void free_log(struct io_log *);
extern void fio_writeout_logs(struct thread_data *);
extern int iolog_flush(struct io_log *, int);