beast::xxhasher Class Reference

#include <xxhasher.h>

Collaboration diagram for beast::xxhasher:

Public Types
using	result_type = std::size_t

Public Member Functions
	xxhasher (xxhasher const &)=delete
xxhasher &	operator= (xxhasher const &)=delete
	xxhasher ()
	~xxhasher () noexcept
template<class Seed , std::enable_if_t< std::is_unsigned< Seed >::value > * = nullptr>
	xxhasher (Seed seed)
template<class Seed , std::enable_if_t< std::is_unsigned< Seed >::value > * = nullptr>
	xxhasher (Seed seed, Seed)
void	operator() (void const *key, std::size_t len) noexcept
	operator result_type () noexcept

Static Public Attributes
static constexpr auto const	endian = boost::endian::order::native

Private Member Functions
void	resetBuffers ()
void	updateHash (void const *data, std::size_t len)
void	flushToState (void const *data, std::size_t len)
result_type	retrieveHash ()

Static Private Member Functions
static XXH3_state_t *	allocState ()

Private Attributes
std::array< std::uint8_t, INTERNAL_BUFFER_SIZE >	buffer_
std::span< std::uint8_t >	readBuffer_
std::span< std::uint8_t >	writeBuffer_
std::optional< XXH64_hash_t >	seed_
XXH3_state_t *	state_ = nullptr

Static Private Attributes
static constexpr std::size_t	INTERNAL_BUFFER_SIZE = 64

Detailed Description

Definition at line 35 of file xxhasher.h.

Member Typedef Documentation

result_type

using beast::xxhasher::result_type = std::size_t

Definition at line 38 of file xxhasher.h.

Constructor & Destructor Documentation

xxhasher() [1/4]

beast::xxhasher::xxhasher ( xxhasher const &  )

delete

xxhasher() [2/4]

beast::xxhasher::xxhasher

(

)

Definition at line 137 of file xxhasher.h.

~xxhasher()

beast::xxhasher::~xxhasher ( )

noexcept

Definition at line 142 of file xxhasher.h.

xxhasher() [3/4]

template<class Seed , std::enable_if_t< std::is_unsigned< Seed >::value > * = nullptr>

beast::xxhasher::xxhasher ( Seed  seed )

explicit

Definition at line 153 of file xxhasher.h.

xxhasher() [4/4]

template<class Seed , std::enable_if_t< std::is_unsigned< Seed >::value > * = nullptr>

beast::xxhasher::xxhasher	(	Seed	seed,
		Seed
	)

Definition at line 161 of file xxhasher.h.

Member Function Documentation

resetBuffers()

void beast::xxhasher::resetBuffers ( )

private

Definition at line 54 of file xxhasher.h.

updateHash()

void beast::xxhasher::updateHash ( void const *  data, std::size_t  len  )

private

Definition at line 61 of file xxhasher.h.

allocState()

static XXH3_state_t * beast::xxhasher::allocState ( )

staticprivate

Definition at line 77 of file xxhasher.h.

flushToState()

void beast::xxhasher::flushToState ( void const *  data, std::size_t  len  )

private

Definition at line 86 of file xxhasher.h.

retrieveHash()

result_type beast::xxhasher::retrieveHash ( )

private

Definition at line 109 of file xxhasher.h.

operator=()

xxhasher & beast::xxhasher::operator= ( xxhasher const &  )

delete

operator()()

void beast::xxhasher::operator() ( void const *  key, std::size_t  len  )

noexcept

Definition at line 167 of file xxhasher.h.

operator result_type()

beast::xxhasher::operator result_type ( )

explicitnoexcept

Definition at line 173 of file xxhasher.h.

Member Data Documentation

INTERNAL_BUFFER_SIZE

constexpr std::size_t beast::xxhasher::INTERNAL_BUFFER_SIZE = 64

staticconstexprprivate

Definition at line 44 of file xxhasher.h.

buffer_

std::array<std::uint8_t, INTERNAL_BUFFER_SIZE> beast::xxhasher::buffer_

private

Definition at line 46 of file xxhasher.h.

readBuffer_

std::span<std::uint8_t> beast::xxhasher::readBuffer_

private

Definition at line 47 of file xxhasher.h.

writeBuffer_

std::span<std::uint8_t> beast::xxhasher::writeBuffer_

private

Definition at line 48 of file xxhasher.h.

seed_

std::optional<XXH64_hash_t> beast::xxhasher::seed_

private

Definition at line 50 of file xxhasher.h.

state_

XXH3_state_t* beast::xxhasher::state_ = nullptr

private

Definition at line 51 of file xxhasher.h.

endian

constexpr auto const beast::xxhasher::endian = boost::endian::order::native

staticconstexpr

Definition at line 131 of file xxhasher.h.