MMH3_HASH Class Reference

A streaming C++ equivalent for MurmurHash3_x64_128. More...

#include <mmh3_hash.h>

Public Member Functions
	MMH3_HASH ()
	MMH3_HASH (uint32_t aSeed)
FORCE_INLINE void	reset (uint32_t aSeed=0)
FORCE_INLINE void	addData (const uint8_t *data, size_t length)
FORCE_INLINE void	add (const std::string &input)
FORCE_INLINE void	add (const std::vector< char > &input)
FORCE_INLINE void	add (int32_t input)
FORCE_INLINE HASH_128	digest ()

Private Member Functions
FORCE_INLINE uint64_t	getblock64 (int i)
FORCE_INLINE void	hashBlock ()
FORCE_INLINE void	hashTail ()
FORCE_INLINE void	hashFinal (HASH_128 &out)

Static Private Member Functions
static FORCE_INLINE uint64_t	fmix64 (uint64_t k)

Private Attributes
uint64_t	h1
uint64_t	h2
union {
uint32_t   blocks [4]
uint64_t   blocks64 [2]
};
uint32_t	len

Detailed Description

A streaming C++ equivalent for MurmurHash3_x64_128.

Definition at line 59 of file mmh3_hash.h.

Constructor & Destructor Documentation

MMH3_HASH() [1/2]

MMH3_HASH::MMH3_HASH ( )

inline

Definition at line 62 of file mmh3_hash.h.

References reset().

MMH3_HASH() [2/2]

MMH3_HASH::MMH3_HASH ( uint32_t  aSeed )

inline

Definition at line 64 of file mmh3_hash.h.

References reset().

Member Function Documentation

add() [1/3]

FORCE_INLINE void MMH3_HASH::add ( const std::string &  input )

inline

Definition at line 95 of file mmh3_hash.h.

References addData().

Referenced by BOOST_AUTO_TEST_CASE(), SHAPE_POLY_SET::checksum(), EMBEDDED_FILES::CompressAndEncode(), EMBEDDED_FILES::DecompressAndDecode(), S3D_CACHE::getHash(), and EMBEDDED_FILES::EMBEDDED_FILE::Validate().

add() [2/3]

FORCE_INLINE void MMH3_HASH::add ( const std::vector< char > &  input )

inline

Definition at line 100 of file mmh3_hash.h.

References addData().

add() [3/3]

FORCE_INLINE void MMH3_HASH::add ( int32_t  input )

inline

Definition at line 105 of file mmh3_hash.h.

References blocks, hashBlock(), and len.

addData()

FORCE_INLINE void MMH3_HASH::addData ( const uint8_t *  data, size_t  length  )

inline

Definition at line 73 of file mmh3_hash.h.

References blocks, hashBlock(), and len.

Referenced by add().

digest()

FORCE_INLINE HASH_128 MMH3_HASH::digest ( )

inline

Definition at line 114 of file mmh3_hash.h.

References hashFinal(), and hashTail().

Referenced by BOOST_AUTO_TEST_CASE(), SHAPE_POLY_SET::checksum(), EMBEDDED_FILES::CompressAndEncode(), EMBEDDED_FILES::DecompressAndDecode(), S3D_CACHE::getHash(), and EMBEDDED_FILES::EMBEDDED_FILE::Validate().

fmix64()

static FORCE_INLINE uint64_t MMH3_HASH::fmix64 ( uint64_t  k )

inlinestaticprivate

Definition at line 185 of file mmh3_hash.h.

References BIG_CONSTANT.

Referenced by hashFinal().

getblock64()

FORCE_INLINE uint64_t MMH3_HASH::getblock64 ( int  i )

inlineprivate

Definition at line 128 of file mmh3_hash.h.

References blocks64.

Referenced by hashBlock().

hashBlock()

FORCE_INLINE void MMH3_HASH::hashBlock ( )

inlineprivate

Definition at line 133 of file mmh3_hash.h.

References BIG_CONSTANT, getblock64(), h1, h2, and ROTL64.

Referenced by add(), and addData().

hashFinal()

FORCE_INLINE void MMH3_HASH::hashFinal ( HASH_128 &  out )

inlineprivate

Definition at line 196 of file mmh3_hash.h.

References fmix64(), h1, h2, len, and HASH_128::Value64.

Referenced by digest().

hashTail()

FORCE_INLINE void MMH3_HASH::hashTail ( )

inlineprivate

Definition at line 150 of file mmh3_hash.h.

References BIG_CONSTANT, blocks, h1, h2, len, and ROTL64.

Referenced by digest().

reset()

FORCE_INLINE void MMH3_HASH::reset ( uint32_t  aSeed = 0 )

inline

Definition at line 66 of file mmh3_hash.h.

References h1, h2, and len.

Referenced by BOOST_AUTO_TEST_CASE(), and MMH3_HASH().

Member Data Documentation

union { ... } MMH3_HASH::@41

blocks

uint32_t MMH3_HASH::blocks[4]

Definition at line 219 of file mmh3_hash.h.

Referenced by add(), addData(), and hashTail().

blocks64

uint64_t MMH3_HASH::blocks64[2]

Definition at line 220 of file mmh3_hash.h.

Referenced by getblock64().

h1

uint64_t MMH3_HASH::h1

private

Definition at line 215 of file mmh3_hash.h.

Referenced by hashBlock(), hashFinal(), hashTail(), and reset().

h2

uint64_t MMH3_HASH::h2

private

Definition at line 216 of file mmh3_hash.h.

Referenced by hashBlock(), hashFinal(), hashTail(), and reset().

len

uint32_t MMH3_HASH::len

private

Definition at line 222 of file mmh3_hash.h.

Referenced by add(), addData(), hashFinal(), hashTail(), and reset().

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

• mmh3_hash.h