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Update hash.h

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Victor Stewart 2020-07-11 23:45:49 -04:00 committed by GitHub
parent 768c3b62d9
commit 339fe5fa8e
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1 changed files with 10 additions and 5 deletions
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include/ulib/base/hash.h
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@ -14,7 +14,8 @@
#ifndef ULIB_BASE_HASH_H
#define ULIB_BASE_HASH_H 1
#include <ulib/base/xxhash/xxhash.h>
#define XXH_INLINE_ALL 1
#include <ulib/base/xxhash/xxh3.h>
#undef GCC_VERSION
#include <ulib/base/base.h>
@ -54,12 +55,16 @@ extern "C" {
/* hash variable-length key into 32-bit value */
static inline uint32_t u_xxhash32(const unsigned char* restrict t, uint32_t tlen) { return XXH32(t, tlen, u_seed_hash); }
static inline uint32_t u_xxhash64(const unsigned char* restrict t, uint32_t tlen)
{ return (uint32_t)(((XXH64(t, tlen, u_seed_hash) * (1578233944ULL << 32 | 194370989ULL)) + (20591ULL << 16)) >> 32); }
// static inline uint32_t u_xxhash64(const unsigned char* restrict t, uint32_t tlen) { return XXH32(t, tlen, u_seed_hash); }
// static inline uint32_t u_xxhash64(const unsigned char* restrict t, uint32_t tlen)
// { return (uint32_t)(((XXH64(t, tlen, u_seed_hash) * (1578233944ULL << 32 | 194370989ULL)) + (20591ULL << 16)) >> 32); }
// RE https://github.com/rurban/smhasher/ this is the most performant
static inline uint32_t u_xxhash64(const unsigned char* restrict t, uint32_t tlen) { return (uint32_t)XXH3_64bits_withSeed(t, tlen, u_seed_hash); }
#ifndef USE_HARDWARE_CRC32
static inline uint32_t u_hash(const unsigned char* restrict t, uint32_t tlen) { return XXH32(t, tlen, u_seed_hash); }
static inline uint32_t u_hash(const unsigned char* restrict t, uint32_t tlen) { return u_xxhash64(t, tlen, u_seed_hash); }
#else
static inline uint32_t u_crc32(const unsigned char* restrict bp, uint32_t len)
{