hash.cpp File Reference

#include "hash.h"
#include "crushwrapper.h"

Include dependency graph for hash.cpp:

Defines
#define	crush_hashmix(a, b, c)
#define	crush_hash_seed   1315423911
Functions
uint64_t	disthash (VDRIVE::Distributor *crush_dist, int64_t key1)
uint64_t	disthash_2 (VDRIVE::Distributor *crush_dist, int64_t key1, int64_t key2)
uint64_t	disthash_3 (VDRIVE::Distributor *crush_dist, int64_t key1, int64_t key2, int64_t key3)
uint64_t	disthash_4 (VDRIVE::Distributor *crush_dist, int64_t key1, int64_t key2, int64_t key3, int64_t key4)
uint64_t	disthash_5 (VDRIVE::Distributor *crush_dist, int64_t key1, int64_t key2, int64_t key3, int64_t key4, int64_t key5)
uint32_t	crush_hash32 (int type, uint32_t a)
uint32_t	crush_hash32_2 (int type, uint32_t a, uint32_t b)
uint32_t	crush_hash32_3 (int type, uint32_t a, uint32_t b, uint32_t c)
uint32_t	crush_hash32_4 (int type, uint32_t a, uint32_t b, uint32_t c, uint32_t d)
uint32_t	crush_hash32_5 (int type, uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t e)
const char *	crush_hash_name (int type)

---

Define Documentation

#define crush_hash_seed   1315423911

#define crush_hashmix	(		a,
			b,
			c
	)

Value:

do {                    \
                a = a-b;  a = a-c;  a = a^(c>>13);      \
                b = b-c;  b = b-a;  b = b^(a<<8);       \
                c = c-a;  c = c-b;  c = c^(b>>13);      \
                a = a-b;  a = a-c;  a = a^(c>>12);      \
                b = b-c;  b = b-a;  b = b^(a<<16);      \
                c = c-a;  c = c-b;  c = c^(b>>5);       \
                a = a-b;  a = a-c;  a = a^(c>>3);       \
                b = b-c;  b = b-a;  b = b^(a<<10);      \
                c = c-a;  c = c-b;  c = c^(b>>15);      \
        } while (0)

---

Function Documentation

uint32_t crush_hash32	(	int	type,
		uint32_t	a
	)

uint32_t crush_hash32_2	(	int	type,
		uint32_t	a,
		uint32_t	b
	)

uint32_t crush_hash32_3	(	int	type,
		uint32_t	a,
		uint32_t	b,
		uint32_t	c
	)

uint32_t crush_hash32_4	(	int	type,
		uint32_t	a,
		uint32_t	b,
		uint32_t	c,
		uint32_t	d
	)

uint32_t crush_hash32_5	(	int	type,
		uint32_t	a,
		uint32_t	b,
		uint32_t	c,
		uint32_t	d,
		uint32_t	e
	)

const char* crush_hash_name

(

int

type )

uint64_t disthash	(	VDRIVE::Distributor *	crush_dist,
		int64_t	key1
	)

uint64_t disthash_2	(	VDRIVE::Distributor *	crush_dist,
		int64_t	key1,
		int64_t	key2
	)

uint64_t disthash_3	(	VDRIVE::Distributor *	crush_dist,
		int64_t	key1,
		int64_t	key2,
		int64_t	key3
	)

uint64_t disthash_4	(	VDRIVE::Distributor *	crush_dist,
		int64_t	key1,
		int64_t	key2,
		int64_t	key3,
		int64_t	key4
	)

uint64_t disthash_5	(	VDRIVE::Distributor *	crush_dist,
		int64_t	key1,
		int64_t	key2,
		int64_t	key3,
		int64_t	key4,
		int64_t	key5
	)