#include <random-number-generator.h>

Collaboration diagram for v8::base::RandomNumberGenerator:

Public Types
using	EntropySource = bool ()(unsigned char buffer, size_t buflen)

using	result_type = unsigned

Public Member Functions
	RandomNumberGenerator ()

	RandomNumberGenerator (int64_t seed)

V8_INLINE int	NextInt () V8_WARN_UNUSED_RESULT

int	NextInt (int max) V8_WARN_UNUSED_RESULT

V8_INLINE bool	NextBool () V8_WARN_UNUSED_RESULT

double	NextDouble () V8_WARN_UNUSED_RESULT

int64_t	NextInt64 () V8_WARN_UNUSED_RESULT

void	NextBytes (void *buffer, size_t buflen)

std::vector< uint64_t >	NextSample (uint64_t max, size_t n) V8_WARN_UNUSED_RESULT

std::vector< uint64_t >	NextSampleSlow (uint64_t max, size_t n, const std::unordered_set< uint64_t > &excluded=std::unordered_set< uint64_t >{}) V8_WARN_UNUSED_RESULT

void	SetSeed (int64_t seed)

int64_t	initial_seed () const

result_type	operator() ()

Static Public Member Functions
static void	SetEntropySource (EntropySource entropy_source)

static double	ToDouble (uint64_t state0)

static void	XorShift128 (uint64_t state0, uint64_t state1)

static uint64_t	MurmurHash3 (uint64_t)

static constexpr result_type	min ()

static constexpr result_type	max ()

Private Member Functions
int	Next (int bits) V8_WARN_UNUSED_RESULT

Private Attributes
int64_t	initial_seed_

uint64_t	state0_

uint64_t	state1_

Static Private Attributes
static const int64_t	kMultiplier = 0x5'deec'e66d

static const int64_t	kAddend = 0xb

static const int64_t	kMask = 0xffff'ffff'ffff

Detailed Description

Definition at line 38 of file random-number-generator.h.

Member Typedef Documentation

◆ EntropySource

using v8::base::RandomNumberGenerator::EntropySource = bool (*)(unsigned char* buffer, size_t buflen)

Definition at line 42 of file random-number-generator.h.

◆ result_type

using v8::base::RandomNumberGenerator::result_type = unsigned

Definition at line 135 of file random-number-generator.h.

Constructor & Destructor Documentation

◆ RandomNumberGenerator() [1/2]

v8::base::RandomNumberGenerator::RandomNumberGenerator ( )

Definition at line 35 of file random-number-generator.cc.

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◆ RandomNumberGenerator() [2/2]

v8::base::RandomNumberGenerator::RandomNumberGenerator ( int64_t seed )

inlineexplicit

Definition at line 46 of file random-number-generator.h.

Member Function Documentation

◆ initial_seed()

int64_t v8::base::RandomNumberGenerator::initial_seed ( ) const

inline

Definition at line 108 of file random-number-generator.h.

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◆ max()

static constexpr result_type v8::base::RandomNumberGenerator::max ( )

inlinestaticconstexpr

Definition at line 138 of file random-number-generator.h.

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◆ min()

static constexpr result_type v8::base::RandomNumberGenerator::min ( )

inlinestaticconstexpr

Definition at line 137 of file random-number-generator.h.

◆ MurmurHash3()

uint64_t v8::base::RandomNumberGenerator::MurmurHash3 ( uint64_t h )

static

Definition at line 228 of file random-number-generator.cc.

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◆ Next()

int v8::base::RandomNumberGenerator::Next ( int bits )

private

Definition at line 212 of file random-number-generator.cc.

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◆ NextBool()

V8_INLINE bool v8::base::RandomNumberGenerator::NextBool ( )

inline

Definition at line 68 of file random-number-generator.h.

◆ NextBytes()

void v8::base::RandomNumberGenerator::NextBytes	(	void *	buffer,
		size_t	buflen )

Definition at line 126 of file random-number-generator.cc.

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◆ NextDouble()

double v8::base::RandomNumberGenerator::NextDouble ( )

Definition at line 114 of file random-number-generator.cc.

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◆ NextInt() [1/2]

V8_INLINE int v8::base::RandomNumberGenerator::NextInt ( )

inline

Definition at line 53 of file random-number-generator.h.

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◆ NextInt() [2/2]

int v8::base::RandomNumberGenerator::NextInt ( int max )

Definition at line 96 of file random-number-generator.cc.

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◆ NextInt64()

int64_t v8::base::RandomNumberGenerator::NextInt64 ( )

Definition at line 120 of file random-number-generator.cc.

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◆ NextSample()

std::vector< uint64_t > v8::base::RandomNumberGenerator::NextSample	(	uint64_t	max,
		size_t	n )

Definition at line 144 of file random-number-generator.cc.

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◆ NextSampleSlow()

std::vector< uint64_t > v8::base::RandomNumberGenerator::NextSampleSlow	(	uint64_t	max,
		size_t	n,
		const std::unordered_set< uint64_t > &	excluded = std::unordered_set<uint64_t>{} )

Definition at line 177 of file random-number-generator.cc.

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◆ operator()()

result_type v8::base::RandomNumberGenerator::operator() ( )

inline

Definition at line 136 of file random-number-generator.h.

◆ SetEntropySource()

void v8::base::RandomNumberGenerator::SetEntropySource ( EntropySource entropy_source )

static

Definition at line 29 of file random-number-generator.cc.

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◆ SetSeed()

void v8::base::RandomNumberGenerator::SetSeed ( int64_t seed )

Definition at line 220 of file random-number-generator.cc.

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◆ ToDouble()

static double v8::base::RandomNumberGenerator::ToDouble ( uint64_t state0 )

inlinestatic

Definition at line 111 of file random-number-generator.h.

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◆ XorShift128()

static void v8::base::RandomNumberGenerator::XorShift128	(	uint64_t *	state0,
		uint64_t *	state1 )

inlinestatic

Definition at line 121 of file random-number-generator.h.

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Member Data Documentation

◆ initial_seed_

int64_t v8::base::RandomNumberGenerator::initial_seed_

private

Definition at line 149 of file random-number-generator.h.

◆ kAddend

const int64_t v8::base::RandomNumberGenerator::kAddend = 0xb

staticprivate

Definition at line 144 of file random-number-generator.h.

◆ kMask

const int64_t v8::base::RandomNumberGenerator::kMask = 0xffff'ffff'ffff

staticprivate

Definition at line 145 of file random-number-generator.h.

◆ kMultiplier

const int64_t v8::base::RandomNumberGenerator::kMultiplier = 0x5'deec'e66d

staticprivate

Definition at line 143 of file random-number-generator.h.

◆ state0_

uint64_t v8::base::RandomNumberGenerator::state0_

private

Definition at line 150 of file random-number-generator.h.

◆ state1_

uint64_t v8::base::RandomNumberGenerator::state1_

private

Definition at line 151 of file random-number-generator.h.

The documentation for this class was generated from the following files:

src/base/utils/random-number-generator.h
src/base/utils/random-number-generator.cc

Public Types

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

◆ EntropySource

◆ result_type

Constructor & Destructor Documentation

◆ RandomNumberGenerator() [1/2]

◆ RandomNumberGenerator() [2/2]

Member Function Documentation

◆ initial_seed()

◆ max()

◆ min()

◆ MurmurHash3()

◆ Next()

◆ NextBool()

◆ NextBytes()

◆ NextDouble()

◆ NextInt() [1/2]

◆ NextInt() [2/2]

◆ NextInt64()

◆ NextSample()

◆ NextSampleSlow()

◆ operator()()

◆ SetEntropySource()

◆ SetSeed()

◆ ToDouble()

◆ XorShift128()

Member Data Documentation

◆ initial_seed_

◆ kAddend

◆ kMask

◆ kMultiplier

◆ state0_

◆ state1_