hash.h File Reference

#include "psptypes.h"

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Data Structures
struct	HASHCTX

Macros
#define	HASH_VALUE uint64_t
#define	RDM_NUM_HASH_NUMBERS 8

Functions
void	hashFcnStart (HASHCTX *hashfcn)
void	hashFcnEmit (HASHCTX *hashfcn, uint8_t ch)
uint64_t	hashFcnFinish (const HASHCTX *hashfcn)
uint64_t	hashValue (uint8_t *values, uint32_t size)

Macro Definition Documentation

HASH_VALUE

#define HASH_VALUE uint64_t

RDM_NUM_HASH_NUMBERS

#define RDM_NUM_HASH_NUMBERS 8

Function Documentation

hashFcnEmit()

void hashFcnEmit ( HASHCTX * hashfcn, uint8_t ch )

inline

 {
     hashfcn->hash ^= hashNumbers[ch][hashfcn->offset++ % RDM_NUM_HASH_NUMBERS];
 }

References HASHCTX::hash.

Referenced by hashValue().

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hashFcnFinish()

uint64_t hashFcnFinish ( const HASHCTX * hashfcn )

inline

 {
return hashfcn->hash;
 }

References HASHCTX::hash.

Referenced by hashValue().

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hashFcnStart()

void hashFcnStart ( HASHCTX * hashfcn )

inline

 {
     hashfcn->hash = 0;
     hashfcn->offset = 0;
 }

References HASHCTX::hash, and HASHCTX::offset.

Referenced by hashValue().

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hashValue()

uint64_t hashValue ( uint8_t * values, uint32_t size )

inline

Examples

cpp50Example_main.cpp.

 {
HASHCTX h;
hashFcnStart (&h);
for (uint32_t i = 0; i < size; i++)
     {
hashFcnEmit (&h, values[i]);
     }

                                                            
return hashFcnFinish (&h);
 }

References hashFcnEmit(), hashFcnFinish(), and hashFcnStart().

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