rand: add 64-bit tausworthe variant with a 2^258 cycle

[fio.git] / fio.h

diff --git a/fio.h b/fio.h
index a4637bb9101ca5cdaaf905687006a714804c29f9..4e2532ff4db01da41ddd4d844b01e859d3182fc9 100644 (file)
--- a/fio.h
+++ b/fio.h
@@ -464,6 +464,7 @@ extern void reset_fio_state(void);
 extern void clear_io_state(struct thread_data *);
 extern int fio_options_parse(struct thread_data *, char **, int, int);
 extern void fio_keywords_init(void);
+extern void fio_keywords_exit(void);
 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
 extern void fio_fill_default_options(struct thread_data *);
@@ -483,6 +484,7 @@ extern int fio_set_fd_nonblocking(int, const char *);
 extern uintptr_t page_mask;
 extern uintptr_t page_size;
 extern int initialize_fio(char *envp[]);
+extern void deinitialize_fio(void);
 
 #define FIO_GETOPT_JOB         0x89000000
 #define FIO_GETOPT_IOENGINE    0x98000000
@@ -631,11 +633,6 @@ static inline unsigned int td_min_bs(struct thread_data *td)
        return min(td->o.min_bs[DDIR_TRIM], min_bs);
 }
 
-static inline int is_power_of_2(uint64_t val)
-{
-       return (val != 0 && ((val & (val - 1)) == 0));
-}
-
 static inline int td_async_processing(struct thread_data *td)
 {
        return (td->flags & TD_F_NEED_LOCK) != 0;
@@ -689,6 +686,7 @@ enum {
 enum {
        FIO_RAND_GEN_TAUSWORTHE = 0,
        FIO_RAND_GEN_LFSR,
+       FIO_RAND_GEN_TAUSWORTHE64,
 };
 
 enum {