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Update xxhash.c to lz4 r120 version;

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o remove xxhash.h, which is unneeded in libarchive and causes
  build failure for function definitions.
o convert single comment statements to block comment statements
  because some C compiler cannot handle it.
This commit is contained in:
Michihiro NAKAJIMA committed 2014-08-14 18:07:34 +09:00
1 parent ef2d83a5c9
commit 20d545194b
4 files changed
+114 -290
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Makefile.am
+1 -2
View File
@@ -223,8 +223,7 @@ libarchive_la_SOURCES= \
libarchive/config_freebsd.h \
libarchive/filter_fork_posix.c \
libarchive/filter_fork.h \
libarchive/xxhash.c \
libarchive/xxhash.h
libarchive/xxhash.c
if INC_WINDOWS_FILES
libarchive_la_SOURCES+= \
libarchive/archive_xxhash.h
+4 -2
View File
@@ -34,9 +34,11 @@
typedef enum { XXH_OK=0, XXH_ERROR } XXH_errorcode;
struct archive_xxhash {
unsigned int (*XXH32)(const void* input, int len, unsigned int seed);
unsigned int (*XXH32)(const void* input, unsigned int len,
unsigned int seed);
void* (*XXH32_init)(unsigned int seed);
XXH_errorcode (*XXH32_update)(void* state, const void* input, int len);
XXH_errorcode (*XXH32_update)(void* state, const void* input,
unsigned int len);
unsigned int (*XXH32_digest)(void* state);
};
libarchive/xxhash.c
+109 -104
View File
@@ -33,73 +33,78 @@ You can contact the author at :
#include "archive_platform.h"
#ifdef HAVE_LIBLZ4
//**************************************
// Tuning parameters
//**************************************
// Unaligned memory access is automatically enabled for "common" CPU, such as x86.
// For others CPU, the compiler will be more cautious, and insert extra code to ensure aligned access is respected.
// If you know your target CPU supports unaligned memory access, you want to force this option manually to improve performance.
// You can also enable this parameter if you know your input data will always be aligned (boundaries of 4, for U32).
/***************************************
** Tuning parameters
****************************************/
/* Unaligned memory access is automatically enabled for "common" CPU, such as x86.
** For others CPU, the compiler will be more cautious, and insert extra code to ensure aligned access is respected.
** If you know your target CPU supports unaligned memory access, you want to force this option manually to improve performance.
** You can also enable this parameter if you know your input data will always be aligned (boundaries of 4, for U32).
*/
#if defined(__ARM_FEATURE_UNALIGNED) || defined(__i386) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_X64)
# define XXH_USE_UNALIGNED_ACCESS 1
#endif
// XXH_ACCEPT_NULL_INPUT_POINTER :
// If the input pointer is a null pointer, xxHash default behavior is to trigger a memory access error, since it is a bad pointer.
// When this option is enabled, xxHash output for null input pointers will be the same as a null-length input.
// This option has a very small performance cost (only measurable on small inputs).
// By default, this option is disabled. To enable it, uncomment below define :
//#define XXH_ACCEPT_NULL_INPUT_POINTER 1
/* XXH_ACCEPT_NULL_INPUT_POINTER :
** If the input pointer is a null pointer, xxHash default behavior is to trigger a memory access error, since it is a bad pointer.
** When this option is enabled, xxHash output for null input pointers will be the same as a null-length input.
** This option has a very small performance cost (only measurable on small inputs).
** By default, this option is disabled. To enable it, uncomment below define :
** #define XXH_ACCEPT_NULL_INPUT_POINTER 1
// XXH_FORCE_NATIVE_FORMAT :
// By default, xxHash library provides endian-independant Hash values, based on little-endian convention.
// Results are therefore identical for little-endian and big-endian CPU.
// This comes at a performance cost for big-endian CPU, since some swapping is required to emulate little-endian format.
// Should endian-independance be of no importance for your application, you may set the #define below to 1.
// It will improve speed for Big-endian CPU.
// This option has no impact on Little_Endian CPU.
** XXH_FORCE_NATIVE_FORMAT :
** By default, xxHash library provides endian-independant Hash values, based on little-endian convention.
** Results are therefore identical for little-endian and big-endian CPU.
** This comes at a performance cost for big-endian CPU, since some swapping is required to emulate little-endian format.
** Should endian-independance be of no importance for your application, you may set the #define below to 1.
** It will improve speed for Big-endian CPU.
** This option has no impact on Little_Endian CPU.
*/
#define XXH_FORCE_NATIVE_FORMAT 0
//**************************************
// Compiler Specific Options
//**************************************
// Disable some Visual warning messages
#ifdef _MSC_VER // Visual Studio
# pragma warning(disable : 4127) // disable: C4127: conditional expression is constant
/***************************************
** Compiler Specific Options
****************************************/
/* Disable some Visual warning messages */
#ifdef _MSC_VER /* Visual Studio */
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
#endif
#ifdef _MSC_VER // Visual Studio
# define FORCE_INLINE static __forceinline
#else
#ifdef _MSC_VER /* Visual Studio */
# define FORCE_INLINE __forceinline
#else
# ifdef __GNUC__
# define FORCE_INLINE static inline __attribute__((always_inline))
# define FORCE_INLINE inline __attribute__((always_inline))
# else
# define FORCE_INLINE static inline
# define FORCE_INLINE inline
# endif
#endif
//**************************************
// Includes & Memory related functions
//**************************************
#include "archive_platform.h"
/***************************************
** Includes & Memory related functions
****************************************/
#include "archive_xxhash.h"
#include "xxhash.h"
// Modify the local functions below should you wish to use some other memory related routines
// for malloc(), free()
#include <stdlib.h>
FORCE_INLINE void* XXH_malloc(size_t s) { return malloc(s); }
FORCE_INLINE void XXH_free (void* p) { free(p); }
// for memcpy()
#define XXH_malloc malloc
#define XXH_free free
#include <string.h>
FORCE_INLINE void* XXH_memcpy(void* dest, const void* src, size_t size) { return memcpy(dest,src,size); }
#define XXH_memcpy memcpy
//**************************************
// Basic Types
//**************************************
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L // C99
static unsigned int XXH32 (const void*, unsigned int, unsigned int);
static void* XXH32_init (unsigned int);
static XXH_errorcode XXH32_update (void*, const void*, unsigned int);
static unsigned int XXH32_digest (void*);
/*static int XXH32_sizeofState(void);*/
static XXH_errorcode XXH32_resetState(void*, unsigned int);
#define XXH32_SIZEOFSTATE 48
typedef struct { long long ll[(XXH32_SIZEOFSTATE+(sizeof(long long)-1))/sizeof(long long)]; } XXH32_stateSpace_t;
static unsigned int XXH32_intermediateDigest (void*);
/***************************************
** Basic Types
****************************************/
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
# include <stdint.h>
typedef uint8_t BYTE;
typedef uint16_t U16;
@@ -134,37 +139,37 @@ typedef struct _U32_S { U32 v; } _PACKED U32_S;
# pragma pack(pop)
#endif
#define A32(x) (((const U32_S *)(x))->v)
#define A32(x) (((U32_S *)(x))->v)
//***************************************
// Compiler-specific Functions and Macros
//***************************************
/****************************************
** Compiler-specific Functions and Macros
*****************************************/
#define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
// Note : although _rotl exists for minGW (GCC under windows), performance seems poor
/* Note : although _rotl exists for minGW (GCC under windows), performance seems poor */
#if defined(_MSC_VER)
# define XXH_rotl32(x,r) _rotl(x,r)
#else
# define XXH_rotl32(x,r) ((x << r) | (x >> (32 - r)))
#endif
#if defined(_MSC_VER) // Visual Studio
#if defined(_MSC_VER) /* Visual Studio */
# define XXH_swap32 _byteswap_ulong
#elif GCC_VERSION >= 403
# define XXH_swap32 __builtin_bswap32
#else
static inline U32 XXH_swap32 (U32 x) {
return ((x << 24) & 0xff000000 ) |
((x << 8) & 0x00ff0000 ) |
((x >> 8) & 0x0000ff00 ) |
((x >> 24) & 0x000000ff );}
((x << 8) & 0x00ff0000 ) |
((x >> 8) & 0x0000ff00 ) |
((x >> 24) & 0x000000ff );}
#endif
//**************************************
// Constants
//**************************************
/***************************************
** Constants
****************************************/
#define PRIME32_1 2654435761U
#define PRIME32_2 2246822519U
#define PRIME32_3 3266489917U
@@ -172,49 +177,50 @@ static inline U32 XXH_swap32 (U32 x) {
#define PRIME32_5 374761393U
//**************************************
// Architecture Macros
//**************************************
/***************************************
** Architecture Macros
****************************************/
typedef enum { XXH_bigEndian=0, XXH_littleEndian=1 } XXH_endianess;
#ifndef XXH_CPU_LITTLE_ENDIAN // It is possible to define XXH_CPU_LITTLE_ENDIAN externally, for example using a compiler switch
#ifndef XXH_CPU_LITTLE_ENDIAN /* It is possible to define XXH_CPU_LITTLE_ENDIAN externally, for example using a compiler switch */
static const int one = 1;
# define XXH_CPU_LITTLE_ENDIAN (*(const char*)(&one))
# define XXH_CPU_LITTLE_ENDIAN (*(char*)(&one))
#endif
//**************************************
// Macros
//**************************************
#define XXH_STATIC_ASSERT(c) { enum { XXH_static_assert = 1/(!!(c)) }; } // use only *after* variable declarations
/***************************************
** Macros
****************************************/
#define XXH_STATIC_ASSERT(c) { enum { XXH_static_assert = 1/(!!(c)) }; } /* use only *after* variable declarations */
//****************************
// Memory reads
//****************************
/*****************************
** Memory reads
******************************/
typedef enum { XXH_aligned, XXH_unaligned } XXH_alignment;
FORCE_INLINE U32 XXH_readLE32_align(const U32* ptr, XXH_endianess endian, XXH_alignment align)
{
{
if (align==XXH_unaligned)
return endian==XXH_littleEndian ? A32(ptr) : XXH_swap32(A32(ptr));
return endian==XXH_littleEndian ? A32(ptr) : XXH_swap32(A32(ptr));
else
return endian==XXH_littleEndian ? *ptr : XXH_swap32(*ptr);
return endian==XXH_littleEndian ? *ptr : XXH_swap32(*ptr);
}
FORCE_INLINE U32 XXH_readLE32(const U32* ptr, XXH_endianess endian) { return XXH_readLE32_align(ptr, endian, XXH_unaligned); }
//****************************
// Simple Hash Functions
//****************************
FORCE_INLINE U32 XXH32_endian_align(const void* input, int len, U32 seed, XXH_endianess endian, XXH_alignment align)
/*****************************
** Simple Hash Functions
******************************/
FORCE_INLINE U32 XXH32_endian_align(const void* input, unsigned int len, U32 seed, XXH_endianess endian, XXH_alignment align)
{
const BYTE* p = (const BYTE*)input;
const BYTE* const bEnd = p + len;
const BYTE* bEnd = p + len;
U32 h32;
#define XXH_get32bits(p) XXH_readLE32_align((const U32*)p, endian, align)
#ifdef XXH_ACCEPT_NULL_INPUT_POINTER
if (p==NULL) { len=0; p=(const BYTE*)(size_t)16; }
if (p==NULL) { len=0; bEnd=p=(const BYTE*)(size_t)16; }
#endif
if (len>=16)
@@ -227,10 +233,10 @@ FORCE_INLINE U32 XXH32_endian_align(const void* input, int len, U32 seed, XXH_en
do
{
v1 += XXH_readLE32_align((const U32*)p, endian, align) * PRIME32_2; v1 = XXH_rotl32(v1, 13); v1 *= PRIME32_1; p+=4;
v2 += XXH_readLE32_align((const U32*)p, endian, align) * PRIME32_2; v2 = XXH_rotl32(v2, 13); v2 *= PRIME32_1; p+=4;
v3 += XXH_readLE32_align((const U32*)p, endian, align) * PRIME32_2; v3 = XXH_rotl32(v3, 13); v3 *= PRIME32_1; p+=4;
v4 += XXH_readLE32_align((const U32*)p, endian, align) * PRIME32_2; v4 = XXH_rotl32(v4, 13); v4 *= PRIME32_1; p+=4;
v1 += XXH_get32bits(p) * PRIME32_2; v1 = XXH_rotl32(v1, 13); v1 *= PRIME32_1; p+=4;
v2 += XXH_get32bits(p) * PRIME32_2; v2 = XXH_rotl32(v2, 13); v2 *= PRIME32_1; p+=4;
v3 += XXH_get32bits(p) * PRIME32_2; v3 = XXH_rotl32(v3, 13); v3 *= PRIME32_1; p+=4;
v4 += XXH_get32bits(p) * PRIME32_2; v4 = XXH_rotl32(v4, 13); v4 *= PRIME32_1; p+=4;
} while (p<=limit);
h32 = XXH_rotl32(v1, 1) + XXH_rotl32(v2, 7) + XXH_rotl32(v3, 12) + XXH_rotl32(v4, 18);
@@ -244,7 +250,7 @@ FORCE_INLINE U32 XXH32_endian_align(const void* input, int len, U32 seed, XXH_en
while (p<=bEnd-4)
{
h32 += XXH_readLE32_align((const U32*)p, endian, align) * PRIME32_3;
h32 += XXH_get32bits(p) * PRIME32_3;
h32 = XXH_rotl32(h32, 17) * PRIME32_4 ;
p+=4;
}
@@ -266,8 +272,7 @@ FORCE_INLINE U32 XXH32_endian_align(const void* input, int len, U32 seed, XXH_en
}
static
U32 XXH32(const void* input, int len, U32 seed)
U32 XXH32(const void* input, unsigned int len, U32 seed)
{
#if 0
// Simple version, good for code maintenance, but unfortunately slow for small inputs
@@ -278,7 +283,7 @@ U32 XXH32(const void* input, int len, U32 seed)
XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
# if !defined(XXH_USE_UNALIGNED_ACCESS)
if ((((size_t)input) & 3)) // Input is aligned, let's leverage the speed advantage
if ((((size_t)input) & 3) == 0) /* Input is aligned, let's leverage the speed advantage */
{
if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
return XXH32_endian_align(input, len, seed, XXH_littleEndian, XXH_aligned);
@@ -294,10 +299,9 @@ U32 XXH32(const void* input, int len, U32 seed)
#endif
}
//****************************
// Advanced Hash Functions
//****************************
/*****************************
** Advanced Hash Functions
******************************/
struct XXH_state32_t
{
@@ -313,16 +317,16 @@ struct XXH_state32_t
#if 0
static
int XXH32_sizeofState()
int XXH32_sizeofState(void)
{
XXH_STATIC_ASSERT(XXH32_SIZEOFSTATE >= sizeof(struct XXH_state32_t)); // A compilation error here means XXH32_SIZEOFSTATE is not large enough
return sizeof(struct XXH_state32_t);
XXH_STATIC_ASSERT(XXH32_SIZEOFSTATE >= sizeof(struct XXH_state32_t)); /* A compilation error here means XXH32_SIZEOFSTATE is not large enough */
return sizeof(struct XXH_state32_t);
}
#endif
static
XXH_errorcode XXH32_resetState(void* state_in, U32 seed)
{
{
struct XXH_state32_t * state = (struct XXH_state32_t *) state_in;
state->seed = seed;
state->v1 = seed + PRIME32_1 + PRIME32_2;
@@ -342,7 +346,7 @@ void* XXH32_init (U32 seed)
return state;
}
static
FORCE_INLINE XXH_errorcode XXH32_update_endian (void* state_in, const void* input, int len, XXH_endianess endian)
{
struct XXH_state32_t * state = (struct XXH_state32_t *) state_in;
@@ -355,20 +359,20 @@ FORCE_INLINE XXH_errorcode XXH32_update_endian (void* state_in, const void* inpu
state->total_len += len;
if (state->memsize + len < 16) // fill in tmp buffer
if (state->memsize + len < 16) /* fill in tmp buffer */
{
XXH_memcpy(state->memory + state->memsize, input, len);
state->memsize += len;
return XXH_OK;
}
if (state->memsize) // some data left from previous update
if (state->memsize) /* some data left from previous update */
{
XXH_memcpy(state->memory + state->memsize, input, 16-state->memsize);
{
const U32* p32 = (const U32*)state->memory;
state->v1 += XXH_readLE32(p32, endian) * PRIME32_2; state->v1 = XXH_rotl32(state->v1, 13); state->v1 *= PRIME32_1; p32++;
state->v2 += XXH_readLE32(p32, endian) * PRIME32_2; state->v2 = XXH_rotl32(state->v2, 13); state->v2 *= PRIME32_1; p32++;
state->v2 += XXH_readLE32(p32, endian) * PRIME32_2; state->v2 = XXH_rotl32(state->v2, 13); state->v2 *= PRIME32_1; p32++;
state->v3 += XXH_readLE32(p32, endian) * PRIME32_2; state->v3 = XXH_rotl32(state->v3, 13); state->v3 *= PRIME32_1; p32++;
state->v4 += XXH_readLE32(p32, endian) * PRIME32_2; state->v4 = XXH_rotl32(state->v4, 13); state->v4 *= PRIME32_1; p32++;
}
@@ -408,10 +412,10 @@ FORCE_INLINE XXH_errorcode XXH32_update_endian (void* state_in, const void* inpu
}
static
XXH_errorcode XXH32_update (void* state_in, const void* input, int len)
XXH_errorcode XXH32_update (void* state_in, const void* input, unsigned int len)
{
XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
return XXH32_update_endian(state_in, input, len, XXH_littleEndian);
else
@@ -420,6 +424,7 @@ XXH_errorcode XXH32_update (void* state_in, const void* input, int len)
static
FORCE_INLINE U32 XXH32_intermediateDigest_endian (void* state_in, XXH_endianess endian)
{
struct XXH_state32_t * state = (struct XXH_state32_t *) state_in;
@@ -465,7 +470,7 @@ static
U32 XXH32_intermediateDigest (void* state_in)
{
XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
return XXH32_intermediateDigest_endian(state_in, XXH_littleEndian);
else
libarchive/xxhash.h
-182
View File
@@ -1,182 +0,0 @@
/*
xxHash - Fast Hash algorithm
Header File
Copyright (C) 2012-2014, Yann Collet.
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- xxHash source repository : http://code.google.com/p/xxhash/
*/
#ifndef __LIBARCHIVE_BUILD
#error This header is only to be used internally to libarchive.
#endif
#ifndef XXHASH_H
#define XXHASH_H
/* Notice extracted from xxHash homepage :
xxHash is an extremely fast Hash algorithm, running at RAM speed limits.
It also successfully passes all tests from the SMHasher suite.
Comparison (single thread, Windows Seven 32 bits, using SMHasher on a Core 2 Duo @3GHz)
Name Speed Q.Score Author
xxHash 5.4 GB/s 10
CrapWow 3.2 GB/s 2 Andrew
MumurHash 3a 2.7 GB/s 10 Austin Appleby
SpookyHash 2.0 GB/s 10 Bob Jenkins
SBox 1.4 GB/s 9 Bret Mulvey
Lookup3 1.2 GB/s 9 Bob Jenkins
SuperFastHash 1.2 GB/s 1 Paul Hsieh
CityHash64 1.05 GB/s 10 Pike & Alakuijala
FNV 0.55 GB/s 5 Fowler, Noll, Vo
CRC32 0.43 GB/s 9
MD5-32 0.33 GB/s 10 Ronald L. Rivest
SHA1-32 0.28 GB/s 10
Q.Score is a measure of quality of the hash function.
It depends on successfully passing SMHasher test set.
10 is a perfect score.
*/
#pragma once
#if defined (__cplusplus)
extern "C" {
#endif
//****************************
// Type
//****************************
#ifndef ARCHIVE_XXHASH_H
typedef enum { XXH_OK=0, XXH_ERROR } XXH_errorcode;
#endif
//****************************
// Simple Hash Functions
//****************************
static
unsigned int XXH32 (const void* input, int len, unsigned int seed);
/*
XXH32() :
Calculate the 32-bits hash of sequence of length "len" stored at memory address "input".
The memory between input & input+len must be valid (allocated and read-accessible).
"seed" can be used to alter the result predictably.
This function successfully passes all SMHasher tests.
Speed on Core 2 Duo @ 3 GHz (single thread, SMHasher benchmark) : 5.4 GB/s
Note that "len" is type "int", which means it is limited to 2^31-1.
If your data is larger, use the advanced functions below.
*/
//****************************
// Advanced Hash Functions
//****************************
static
void* XXH32_init (unsigned int seed);
static
XXH_errorcode XXH32_update (void* state, const void* input, int len);
static
unsigned int XXH32_digest (void* state);
/*
These functions calculate the xxhash of an input provided in several small packets,
as opposed to an input provided as a single block.
It must be started with :
void* XXH32_init()
The function returns a pointer which holds the state of calculation.
This pointer must be provided as "void* state" parameter for XXH32_update().
XXH32_update() can be called as many times as necessary.
The user must provide a valid (allocated) input.
The function returns an error code, with 0 meaning OK, and any other value meaning there is an error.
Note that "len" is type "int", which means it is limited to 2^31-1.
If your data is larger, it is recommended to chunk your data into blocks
of size for example 2^30 (1GB) to avoid any "int" overflow issue.
Finally, you can end the calculation anytime, by using XXH32_digest().
This function returns the final 32-bits hash.
You must provide the same "void* state" parameter created by XXH32_init().
Memory will be freed by XXH32_digest().
*/
#if 0
static
int XXH32_sizeofState(void);
#endif
static
XXH_errorcode XXH32_resetState(void* state, unsigned int seed);
#define XXH32_SIZEOFSTATE 48
typedef struct { long long ll[(XXH32_SIZEOFSTATE+(sizeof(long long)-1))/sizeof(long long)]; } XXH32_stateSpace_t;
/*
These functions allow user application to make its own allocation for state.
XXH32_sizeofState() is used to know how much space must be allocated for the xxHash 32-bits state.
Note that the state must be aligned to access 'long long' fields. Memory must be allocated and referenced by a pointer.
This pointer must then be provided as 'state' into XXH32_resetState(), which initializes the state.
For static allocation purposes (such as allocation on stack, or freestanding systems without malloc()),
use the structure XXH32_stateSpace_t, which will ensure that memory space is large enough and correctly aligned to access 'long long' fields.
*/
static
unsigned int XXH32_intermediateDigest (void* state);
/*
This function does the same as XXH32_digest(), generating a 32-bit hash,
but preserve memory context.
This way, it becomes possible to generate intermediate hashes, and then continue feeding data with XXH32_update().
To free memory context, use XXH32_digest(), or free().
*/
//****************************
// Deprecated function names
//****************************
// The following translations are provided to ease code transition
// You are encouraged to no longer this function names
#define XXH32_feed XXH32_update
#define XXH32_result XXH32_digest
#define XXH32_getIntermediateResult XXH32_intermediateDigest
#if defined (__cplusplus)
}
#endif
#endif /* XXHASH_H */