random.64.c File Reference

Random number generator using xoroshiro algorithms. More...

#include <random.h>
#include <xxhash.h>
#include <cpu.h>

Functions
	MODULE ("turnstone.lib.random")
static uint64_t	random_xoroshiro_rotl (const uint64_t x, int k)
static uint64_t	random_xoroshiro_state_next (void)
static uint64_t	random_xoroshiro_next (void)
void	srand (uint64_t seed)
	initialize random generator
uint32_t	rand (void)
	generates random
uint64_t	rand64 (void)
	generates random

Variables
static uint64_t	random_xoroshiro_seed = 0
static uint64_t	random_xoroshiro_state [4] = {}
static boolean_t	rdrand_supported = false
static boolean_t	rdrand_initialized = false

Detailed Description

Random number generator using xoroshiro algorithms.

This work is licensed under TURNSTONE OS Public License. Please read and understand latest version of Licence.

Function Documentation

rand()

uint32_t rand

(

void

)

generates random

Returns

32 bit random number

rand64()

uint64_t rand64

(

void

)

generates random

Returns

64 bit random number

srand()

void srand

(

uint64_t

seed

)

initialize random generator

Parameters

[in]

seed

random generator seed