hash.h File Reference

#include <osmocom/core/log2.h>
#include <limits.h>

Go to the source code of this file.

Macros
#define	BITS_PER_LONG   64
#define	hash_long(val, bits)
#define	GOLDEN_RATIO_PRIME   GOLDEN_RATIO_64
#define	GOLDEN_RATIO_32   0x61C88647
#define	GOLDEN_RATIO_64   0x61C8864680B583EBull
#define	__hash_32   __hash_32_generic
#define	hash_32   hash_32_generic
#define	hash_64   hash_64_generic

Functions
static uint32_t	__hash_32_generic (uint32_t val)
static uint32_t	hash_32_generic (uint32_t val, unsigned int bits)
static	__attribute__ ((always_inline)) uint32_t hash_64_generic(uint64_t val
static uint32_t	hash_ptr (const void *ptr, unsigned int bits)
static uint32_t	hash32_ptr (const void *ptr)

Variables
static unsigned int	bits

Macro Definition Documentation

__hash_32

#define __hash_32   __hash_32_generic

Referenced by __attribute__(), and hash_32_generic().

BITS_PER_LONG

#define BITS_PER_LONG   64

GOLDEN_RATIO_32

#define GOLDEN_RATIO_32   0x61C88647

Referenced by __hash_32_generic().

GOLDEN_RATIO_64

#define GOLDEN_RATIO_64   0x61C8864680B583EBull

Referenced by __attribute__().

GOLDEN_RATIO_PRIME

#define GOLDEN_RATIO_PRIME   GOLDEN_RATIO_64

hash_32

#define hash_32   hash_32_generic

Referenced by __attribute__().

hash_64

#define hash_64   hash_64_generic

hash_long

#define hash_long	(		val,
			bits )

Value:

hash_64(val, bits)

Referenced by hash_ptr().

Function Documentation

__attribute__()

__attribute__ ( (always_inline) )

inlinestatic

References __hash_32, bits, GOLDEN_RATIO_64, and hash_32.

__hash_32_generic()

uint32_t __hash_32_generic ( uint32_t val )

inlinestatic

References GOLDEN_RATIO_32.

hash32_ptr()

uint32_t hash32_ptr ( const void * ptr )

inlinestatic

hash_32_generic()

uint32_t hash_32_generic ( uint32_t val, unsigned int bits )

inlinestatic

References __hash_32, and bits.

hash_ptr()

uint32_t hash_ptr ( const void * ptr, unsigned int bits )

inlinestatic

References bits, and hash_long.

Variable Documentation

bits

unsigned int bits

Initial value:

{
 
        
        return val * GOLDEN_RATIO_64 >> (64 - bits)

Referenced by __attribute__(), bitvec_add_array(), bitvec_set_bits(), hash_32_generic(), hash_ptr(), osmo_ubit_dump(), and osmo_ubit_dump_buf().