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xenia-canary/third_party/xxhash/xxhsum.c

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/*
bench.c - Demo program to benchmark open-source algorithm
Copyright (C) Yann Collet 2012-2014
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
You can contact the author at :
- Blog homepage : http://fastcompression.blogspot.com/
- Discussion group : https://groups.google.com/forum/?fromgroups#!forum/lz4c
*/
/**************************************
* Compiler Options
*************************************/
/* MS Visual */
#if defined(_MSC_VER) || defined(_WIN32)
# define _CRT_SECURE_NO_WARNINGS /* removes visual warnings */
# define BMK_LEGACY_TIMER 1 /* gettimeofday() not supported by MSVC */
#endif
/* Under Linux at least, pull in the *64 commands */
#define _LARGEFILE64_SOURCE
/**************************************
* Includes
*************************************/
#include <stdlib.h> // malloc
#include <stdio.h> // fprintf, fopen, ftello64, fread, stdin, stdout; when present : _fileno
#include <string.h> // strcmp
#include <sys/types.h> // stat64
#include <sys/stat.h> // stat64
#include "xxhash.h"
/**************************************
* OS-Specific Includes
*************************************/
// Use ftime() if gettimeofday() is not available on your target
#if defined(BMK_LEGACY_TIMER)
# include <sys/timeb.h> // timeb, ftime
#else
# include <sys/time.h> // gettimeofday
#endif
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
# include <fcntl.h> // _O_BINARY
# include <io.h> // _setmode, _isatty
# ifdef __MINGW32__
int _fileno(FILE *stream); // MINGW somehow forgets to include this windows declaration into <stdio.h>
# endif
# define SET_BINARY_MODE(file) _setmode(_fileno(file), _O_BINARY)
# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
#else
# include <unistd.h> // isatty, STDIN_FILENO
# define SET_BINARY_MODE(file)
# define IS_CONSOLE(stdStream) isatty(STDIN_FILENO)
#endif
#if !defined(S_ISREG)
# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
#endif
/**************************************
* Basic Types
*************************************/
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L // C99
# include <stdint.h>
typedef uint8_t BYTE;
typedef uint16_t U16;
typedef uint32_t U32;
typedef int32_t S32;
typedef uint64_t U64;
#else
typedef unsigned char BYTE;
typedef unsigned short U16;
typedef unsigned int U32;
typedef signed int S32;
typedef unsigned long long U64;
#endif
/**************************************
* Constants
*************************************/
#define PROGRAM_NAME exename
#define PROGRAM_VERSION ""
#define COMPILED __DATE__
#define AUTHOR "Yann Collet"
#define WELCOME_MESSAGE "*** %s %i-bits %s, by %s (%s) ***\n", PROGRAM_NAME, (int)(sizeof(void*)*8), PROGRAM_VERSION, AUTHOR, COMPILED
#define NBLOOPS 3 // Default number of benchmark iterations
#define TIMELOOP 2500 // Minimum timing per iteration
#define PRIME 2654435761U
#define KB *(1<<10)
#define MB *(1<<20)
#define GB *(1U<<30)
#define MAX_MEM (2 GB - 64 MB)
static const char stdinName[] = "-";
//**************************************
// Display macros
//**************************************
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
#define DISPLAYRESULT(...) fprintf(stdout, __VA_ARGS__)
#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) DISPLAY(__VA_ARGS__);
static unsigned g_displayLevel = 1;
//**************************************
// Unit variables
//**************************************
static int g_nbIterations = NBLOOPS;
static int g_fn_selection = 1; // required within main() & usage()
//*********************************************************
// Benchmark Functions
//*********************************************************
#if defined(BMK_LEGACY_TIMER)
static int BMK_GetMilliStart(void)
{
// Based on Legacy ftime()
// Rolls over every ~ 12.1 days (0x100000/24/60/60)
// Use GetMilliSpan to correct for rollover
struct timeb tb;
int nCount;
ftime( &tb );
nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000);
return nCount;
}
#else
static int BMK_GetMilliStart(void)
{
// Based on newer gettimeofday()
// Use GetMilliSpan to correct for rollover
struct timeval tv;
int nCount;
gettimeofday(&tv, NULL);
nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000);
return nCount;
}
#endif
static int BMK_GetMilliSpan( int nTimeStart )
{
int nSpan = BMK_GetMilliStart() - nTimeStart;
if ( nSpan < 0 )
nSpan += 0x100000 * 1000;
return nSpan;
}
static size_t BMK_findMaxMem(U64 requestedMem)
{
size_t step = (64 MB);
size_t allocatedMemory;
BYTE* testmem=NULL;
requestedMem += 3*step;
requestedMem -= (size_t)requestedMem & (step-1);
if (requestedMem > MAX_MEM) requestedMem = MAX_MEM;
allocatedMemory = (size_t)requestedMem;
while (!testmem)
{
allocatedMemory -= step;
testmem = (BYTE*) malloc((size_t)allocatedMemory);
}
free (testmem);
return (size_t) (allocatedMemory - step);
}
static U64 BMK_GetFileSize(char* infilename)
{
int r;
#if defined(_MSC_VER)
struct _stat64 statbuf;
r = _stat64(infilename, &statbuf);
#else
struct stat statbuf;
r = stat(infilename, &statbuf);
#endif
if (r || !S_ISREG(statbuf.st_mode)) return 0; // No good...
return (U64)statbuf.st_size;
}
static int BMK_benchFile(char** fileNamesTable, int nbFiles)
{
int fileIdx=0;
U32 hashResult=0;
U64 totals = 0;
double totalc = 0.;
// Loop for each file
while (fileIdx<nbFiles)
{
FILE* inFile;
char* inFileName;
U64 inFileSize;
size_t benchedSize;
size_t readSize;
char* buffer;
char* alignedBuffer;
// Check file existence
inFileName = fileNamesTable[fileIdx++];
inFile = fopen( inFileName, "rb" );
if (inFile==NULL)
{
DISPLAY( "Pb opening %s\n", inFileName);
return 11;
}
// Memory allocation & restrictions
inFileSize = BMK_GetFileSize(inFileName);
benchedSize = (size_t) BMK_findMaxMem(inFileSize);
if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
if (benchedSize < inFileSize)
{
DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
}
buffer = (char*)malloc((size_t )benchedSize+16);
if(!buffer)
{
DISPLAY("\nError: not enough memory!\n");
fclose(inFile);
return 12;
}
alignedBuffer = (buffer+15) - (((size_t)(buffer+15)) & 0xF); // align on next 16 bytes boundaries
// Fill input buffer
DISPLAY("\rLoading %s... \n", inFileName);
readSize = fread(alignedBuffer, 1, benchedSize, inFile);
fclose(inFile);
if(readSize != benchedSize)
{
DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
free(buffer);
return 13;
}
// Bench XXH32
{
int interationNb;
double fastestC = 100000000.;
DISPLAY("\r%79s\r", ""); // Clean display line
for (interationNb = 1; interationNb <= g_nbIterations; interationNb++)
{
int nbHashes = 0;
int milliTime;
DISPLAY("%1i-%-14.14s : %10i ->\r", interationNb, "XXH32", (int)benchedSize);
// Hash loop
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliStart() == milliTime);
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
{
int i;
for (i=0; i<100; i++)
{
hashResult = XXH32(alignedBuffer, benchedSize, 0);
nbHashes++;
}
}
milliTime = BMK_GetMilliSpan(milliTime);
if ((double)milliTime < fastestC*nbHashes) fastestC = (double)milliTime/nbHashes;
DISPLAY("%1i-%-14.14s : %10i -> %7.1f MB/s\r", interationNb, "XXH32", (int)benchedSize, (double)benchedSize / fastestC / 1000.);
}
DISPLAY("%-16.16s : %10i -> %7.1f MB/s 0x%08X\n", "XXH32", (int)benchedSize, (double)benchedSize / fastestC / 1000., hashResult);
totals += benchedSize;
totalc += fastestC;
}
// Bench Unaligned XXH32
{
int interationNb;
double fastestC = 100000000.;
DISPLAY("\r%79s\r", ""); // Clean display line
for (interationNb = 1; (interationNb <= g_nbIterations) && ((benchedSize>1)); interationNb++)
{
int nbHashes = 0;
int milliTime;
DISPLAY("%1i-%-14.14s : %10i ->\r", interationNb, "(unaligned)", (int)benchedSize);
// Hash loop
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliStart() == milliTime);
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
{
int i;
for (i=0; i<100; i++)
{
hashResult = XXH32(alignedBuffer+1, benchedSize-1, 0);
nbHashes++;
}
}
milliTime = BMK_GetMilliSpan(milliTime);
if ((double)milliTime < fastestC*nbHashes) fastestC = (double)milliTime/nbHashes;
DISPLAY("%1i-%-14.14s : %10i -> %7.1f MB/s\r", interationNb, "XXH32 (unaligned)", (int)(benchedSize-1), (double)(benchedSize-1) / fastestC / 1000.);
}
DISPLAY("%-16.16s : %10i -> %7.1f MB/s \n", "XXH32 (unaligned)", (int)benchedSize-1, (double)(benchedSize-1) / fastestC / 1000.);
}
// Bench XXH64
{
int interationNb;
double fastestC = 100000000.;
unsigned long long h64 = 0;
DISPLAY("\r%79s\r", ""); // Clean display line
for (interationNb = 1; interationNb <= g_nbIterations; interationNb++)
{
int nbHashes = 0;
int milliTime;
DISPLAY("%1i-%-14.14s : %10i ->\r", interationNb, "XXH64", (int)benchedSize);
// Hash loop
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliStart() == milliTime);
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
{
int i;
for (i=0; i<100; i++)
{
h64 = XXH64(alignedBuffer, benchedSize, 0);
nbHashes++;
}
}
milliTime = BMK_GetMilliSpan(milliTime);
if ((double)milliTime < fastestC*nbHashes) fastestC = (double)milliTime/nbHashes;
DISPLAY("%1i-%-14.14s : %10i -> %7.1f MB/s\r", interationNb, "XXH64", (int)benchedSize, (double)benchedSize / fastestC / 1000.);
}
DISPLAY("%-16.16s : %10i -> %7.1f MB/s 0x%08X%08X\n", "XXH64", (int)benchedSize, (double)benchedSize / fastestC / 1000., (U32)(h64>>32), (U32)(h64));
totals += benchedSize;
totalc += fastestC;
}
free(buffer);
}
if (nbFiles > 1)
printf("%-16.16s :%11llu -> %7.1f MB/s\n", " TOTAL", (long long unsigned int)totals, (double)totals/totalc/1000.);
return 0;
}
static void BMK_checkResult(U32 r1, U32 r2)
{
static int nbTests = 1;
if (r1==r2) DISPLAY("\rTest%3i : %08X == %08X ok ", nbTests, r1, r2);
else
{
DISPLAY("\rERROR : Test%3i : %08X <> %08X !!!!! \n", nbTests, r1, r2);
exit(1);
}
nbTests++;
}
static void BMK_checkResult64(U64 r1, U64 r2)
{
static int nbTests = 1;
if (r1!=r2)
{
DISPLAY("\rERROR : Test%3i : 64-bits values non equals !!!!! \n", nbTests);
DISPLAY("\r %08X%08X != %08X%08X \n", (U32)(r1>>32), (U32)r1, (U32)(r2<<32), (U32)r2);
exit(1);
}
nbTests++;
}
static void BMK_testSequence64(void* sentence, int len, U64 seed, U64 Nresult)
{
U64 Dresult;
XXH64_state_t state;
int index;
Dresult = XXH64(sentence, len, seed);
BMK_checkResult64(Dresult, Nresult);
XXH64_reset(&state, seed);
XXH64_update(&state, sentence, len);
Dresult = XXH64_digest(&state);
BMK_checkResult64(Dresult, Nresult);
XXH64_reset(&state, seed);
for (index=0; index<len; index++) XXH64_update(&state, ((char*)sentence)+index, 1);
Dresult = XXH64_digest(&state);
BMK_checkResult64(Dresult, Nresult);
}
static void BMK_testSequence(void* sentence, int len, U32 seed, U32 Nresult)
{
U32 Dresult;
XXH32_state_t state;
int index;
Dresult = XXH32(sentence, len, seed);
BMK_checkResult(Dresult, Nresult);
XXH32_reset(&state, seed);
XXH32_update(&state, sentence, len);
Dresult = XXH32_digest(&state);
BMK_checkResult(Dresult, Nresult);
XXH32_reset(&state, seed);
for (index=0; index<len; index++) XXH32_update(&state, ((char*)sentence)+index, 1);
Dresult = XXH32_digest(&state);
BMK_checkResult(Dresult, Nresult);
}
#define SANITY_BUFFER_SIZE 101
static void BMK_sanityCheck(void)
{
BYTE sanityBuffer[SANITY_BUFFER_SIZE];
int i;
U32 prime = PRIME;
for (i=0; i<SANITY_BUFFER_SIZE; i++)
{
sanityBuffer[i] = (BYTE)(prime>>24);
prime *= prime;
}
BMK_testSequence(NULL, 0, 0, 0x02CC5D05);
BMK_testSequence(NULL, 0, PRIME, 0x36B78AE7);
BMK_testSequence(sanityBuffer, 1, 0, 0xB85CBEE5);
BMK_testSequence(sanityBuffer, 1, PRIME, 0xD5845D64);
BMK_testSequence(sanityBuffer, 14, 0, 0xE5AA0AB4);
BMK_testSequence(sanityBuffer, 14, PRIME, 0x4481951D);
BMK_testSequence(sanityBuffer, SANITY_BUFFER_SIZE, 0, 0x1F1AA412);
BMK_testSequence(sanityBuffer, SANITY_BUFFER_SIZE, PRIME, 0x498EC8E2);
BMK_testSequence64(NULL , 0, 0, 0xEF46DB3751D8E999ULL);
BMK_testSequence64(NULL , 0, PRIME, 0xAC75FDA2929B17EFULL);
BMK_testSequence64(sanityBuffer, 1, 0, 0x4FCE394CC88952D8ULL);
BMK_testSequence64(sanityBuffer, 1, PRIME, 0x739840CB819FA723ULL);
BMK_testSequence64(sanityBuffer, 14, 0, 0xCFFA8DB881BC3A3DULL);
BMK_testSequence64(sanityBuffer, 14, PRIME, 0x5B9611585EFCC9CBULL);
BMK_testSequence64(sanityBuffer, SANITY_BUFFER_SIZE, 0, 0x0EAB543384F878ADULL);
BMK_testSequence64(sanityBuffer, SANITY_BUFFER_SIZE, PRIME, 0xCAA65939306F1E21ULL);
DISPLAY("\r%79s\r", ""); // Clean display line
DISPLAYLEVEL(2, "Sanity check -- all tests ok\n");
}
static int BMK_hash(const char* fileName, U32 hashNb)
{
FILE* inFile;
size_t const blockSize = 64 KB;
size_t readSize;
char* buffer;
XXH64_state_t state;
// Check file existence
if (fileName == stdinName)
{
inFile = stdin;
SET_BINARY_MODE(stdin);
}
else
inFile = fopen( fileName, "rb" );
if (inFile==NULL)
{
DISPLAY( "Pb opening %s\n", fileName);
return 11;
}
// Memory allocation & restrictions
buffer = (char*)malloc(blockSize);
if(!buffer)
{
DISPLAY("\nError: not enough memory!\n");
fclose(inFile);
return 12;
}
// Init
switch(hashNb)
{
case 0:
XXH32_reset((XXH32_state_t*)&state, 0);
break;
case 1:
XXH64_reset(&state, 0);
break;
default:
DISPLAY("Error : bad hash algorithm ID\n");
fclose(inFile);
free(buffer);
return -1;
}
// Load file & update hash
DISPLAY("\rLoading %s... \r", fileName);
readSize = 1;
while (readSize)
{
readSize = fread(buffer, 1, blockSize, inFile);
switch(hashNb)
{
case 0:
XXH32_update((XXH32_state_t*)&state, buffer, readSize);
break;
case 1:
XXH64_update(&state, buffer, readSize);
break;
default:
break;
}
}
fclose(inFile);
free(buffer);
// display Hash
switch(hashNb)
{
case 0:
{
U32 h32 = XXH32_digest((XXH32_state_t*)&state);
DISPLAYRESULT("%08x %s \n", h32, fileName);
break;
}
case 1:
{
U64 h64 = XXH64_digest(&state);
DISPLAYRESULT("%08x%08x %s \n", (U32)(h64>>32), (U32)(h64), fileName);
break;
}
default:
break;
}
return 0;
}
//*********************************************************
// Main
//*********************************************************
static int usage(const char* exename)
{
DISPLAY( WELCOME_MESSAGE );
DISPLAY( "Usage :\n");
DISPLAY( " %s [arg] [filename]\n", exename);
DISPLAY( "When no filename provided, or - provided : use stdin as input\n");
DISPLAY( "Arguments :\n");
DISPLAY( " -H# : hash selection : 0=32bits, 1=64bits (default %i)\n", g_fn_selection);
DISPLAY( " -b : benchmark mode \n");
DISPLAY( " -i# : number of iterations (benchmark mode; default %i)\n", g_nbIterations);
DISPLAY( " -h : help (this text)\n");
return 0;
}
static int badusage(const char* exename)
{
DISPLAY("Wrong parameters\n");
usage(exename);
return 1;
}
int main(int argc, char** argv)
{
int i, filenamesStart=0;
const char* input_filename = (char*)stdinName;
const char* exename = argv[0];
U32 benchmarkMode = 0;
// xxh32sum default to 32 bits checksum
if (strstr(exename, "xxh32sum")!=NULL) g_fn_selection=0;
for(i=1; i<argc; i++)
{
char* argument = argv[i];
if(!argument) continue; // Protection if argument empty
if (*argument!='-')
{
input_filename=argument;
if (filenamesStart==0) filenamesStart=i;
continue;
}
// Select command
// note : *argument=='-'
argument++;
while (*argument!=0)
{
switch(*argument)
{
// Display help on usage
case 'h':
return usage(exename);
// select hash algorithm
case 'H':
g_fn_selection = argument[1] - '0';
argument+=2;
break;
// Trigger benchmark mode
case 'b':
argument++;
benchmarkMode=1;
break;
// Modify Nb Iterations (benchmark only)
case 'i':
g_nbIterations = argument[1] - '0';
argument+=2;
break;
default:
return badusage(exename);
}
}
}
// Check if input is defined as console; trigger an error in this case
if ((input_filename == stdinName) && IS_CONSOLE(stdin) ) return badusage(exename);
// Check results are good
if (benchmarkMode)
{
if (filenamesStart==0) return badusage(exename);
DISPLAY( WELCOME_MESSAGE );
BMK_sanityCheck();
return BMK_benchFile(argv+filenamesStart, argc-filenamesStart);
}
if(g_fn_selection < 0 || g_fn_selection > 1) return badusage(exename);
return BMK_hash(input_filename, g_fn_selection);
}
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