subr_prng.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/pcpu.h>
#include <sys/prng.h>
#include <sys/smp.h>
#include <sys/systm.h>

Include dependency graph for subr_prng.c:

Go to the source code of this file.

Data Structures
struct	pcg64u_random_t

Functions
	__FBSDID ("$FreeBSD$")
static void	pcg64u_srandom_r (pcg64u_random_t *state64, uint64_t seed)
static uint64_t	pcg64u_random_r (pcg64u_random_t *state64)
static uint64_t	pcg64u_boundedrand_r (pcg64u_random_t *state64, uint64_t bound)
	DPCPU_DEFINE_STATIC (pcg32u_random_t, pcpu_prng32_state)
	DPCPU_DEFINE_STATIC (pcg64u_random_t, pcpu_prng64_state)
static void	prng_init (void *dummy __unused)
	SYSINIT (prng_init, SI_SUB_CPU, SI_ORDER_ANY, prng_init, NULL)
uint32_t	prng32 (void)
uint32_t	prng32_bounded (uint32_t bound)
uint64_t	prng64 (void)
uint64_t	prng64_bounded (uint64_t bound)

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

DPCPU_DEFINE_STATIC() [1/2]

DPCPU_DEFINE_STATIC	(	pcg32u_random_t	,
		pcpu_prng32_state
	)

DPCPU_DEFINE_STATIC() [2/2]

DPCPU_DEFINE_STATIC	(	pcg64u_random_t	,
		pcpu_prng64_state
	)

pcg64u_boundedrand_r()

static uint64_t pcg64u_boundedrand_r ( pcg64u_random_t *  state64, uint64_t  bound  )

inlinestatic

Definition at line 59 of file subr_prng.c.

References pcg64u_random_r().

Referenced by prng64_bounded().

Here is the call graph for this function:

Here is the caller graph for this function:

pcg64u_random_r()

static uint64_t pcg64u_random_r ( pcg64u_random_t *  state64 )

inlinestatic

Definition at line 52 of file subr_prng.c.

References pcg64u_random_t::states.

Referenced by pcg64u_boundedrand_r(), and prng64().

Here is the caller graph for this function:

pcg64u_srandom_r()

static void pcg64u_srandom_r ( pcg64u_random_t *  state64, uint64_t  seed  )

inlinestatic

Definition at line 45 of file subr_prng.c.

References pcg64u_random_t::states.

Referenced by prng_init().

Here is the caller graph for this function:

prng32()

uint32_t prng32

(

void

)

Definition at line 90 of file subr_prng.c.

prng32_bounded()

uint32_t prng32_bounded

(

uint32_t

bound

)

Definition at line 101 of file subr_prng.c.

Referenced by vn_lock_pair_pause().

Here is the caller graph for this function:

prng64()

uint64_t prng64

(

void

)

Definition at line 112 of file subr_prng.c.

References pcg64u_random_r().

Here is the call graph for this function:

prng64_bounded()

uint64_t prng64_bounded

(

uint64_t

bound

)

Definition at line 123 of file subr_prng.c.

References pcg64u_boundedrand_r().

Here is the call graph for this function:

prng_init()

static void prng_init ( void *dummy  __unused )

static

Definition at line 74 of file subr_prng.c.

References pcg64u_srandom_r().

Here is the call graph for this function:

SYSINIT()

SYSINIT	(	prng_init	,
		SI_SUB_CPU	,
		SI_ORDER_ANY	,
		prng_init	,
		NULL
	)