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upgraded zbufftest to also test advanced frame parameters no/checksum no/dictID

dev
Yann Collet 2016-06-01 17:44:53 +02:00
parent 38a0215b53
commit 83c3f4427c
2 changed files with 26 additions and 16 deletions
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11
lib/common/zbuff_static.h
View File

@ -32,9 +32,9 @@
#ifndef ZSTD_BUFFERED_STATIC_H #ifndef ZSTD_BUFFERED_STATIC_H
#define ZSTD_BUFFERED_STATIC_H #define ZSTD_BUFFERED_STATIC_H
/* The objects defined into this file should be considered experimental. /* The objects defined into this file must be considered experimental.
* They are not labelled stable, as their prototype may change in the future. * Their prototype may change in future versions.
* You can use them for tests, provide feedback, or if you can endure risk of future changes. * Never use them with a dynamic library.
*/ */
#if defined (__cplusplus) #if defined (__cplusplus)
@ -65,10 +65,13 @@ ZSTDLIB_API ZBUFF_DCtx* ZBUFF_createDCtx_advanced(ZSTD_customMem customMem);
/* ************************************* /* *************************************
* Advanced Streaming functions * Advanced Streaming functions
***************************************/ ***************************************/
ZSTDLIB_API size_t ZBUFF_compressInit_advanced(ZBUFF_CCtx* cctx, ZSTDLIB_API size_t ZBUFF_compressInit_advanced(ZBUFF_CCtx* zbc,
const void* dict, size_t dictSize, const void* dict, size_t dictSize,
ZSTD_parameters params, U64 pledgedSrcSize); ZSTD_parameters params, U64 pledgedSrcSize);
/* internal util function */
MEM_STATIC size_t ZBUFF_limitCopy(void* dst, size_t dstCapacity, const void* src, size_t srcSize) MEM_STATIC size_t ZBUFF_limitCopy(void* dst, size_t dstCapacity, const void* src, size_t srcSize)
{ {
size_t length = ZBUFF_MIN(dstCapacity, srcSize); size_t length = ZBUFF_MIN(dstCapacity, srcSize);

21
programs/zbufftest.c
View File

@ -346,8 +346,8 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compres
FUZ_rand(&coreSeed); FUZ_rand(&coreSeed);
lseed = coreSeed ^ prime1; lseed = coreSeed ^ prime1;
/* state total reset */ /* states full reset (unsynchronized) */
/* some problems only happen when states are re-used in a specific order */ /* some issues only happen when reusing states in a specific sequence of parameters */
if ((FUZ_rand(&lseed) & 0xFF) == 131) { ZBUFF_freeCCtx(zc); zc = ZBUFF_createCCtx(); } if ((FUZ_rand(&lseed) & 0xFF) == 131) { ZBUFF_freeCCtx(zc); zc = ZBUFF_createCCtx(); }
if ((FUZ_rand(&lseed) & 0xFF) == 132) { ZBUFF_freeDCtx(zd); zd = ZBUFF_createDCtx(); } if ((FUZ_rand(&lseed) & 0xFF) == 132) { ZBUFF_freeDCtx(zd); zd = ZBUFF_createDCtx(); }
@ -370,15 +370,22 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compres
{ U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; { U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
U32 const cLevel = (FUZ_rand(&lseed) % (ZSTD_maxCLevel() - (testLog/3))) + 1; U32 const cLevel = (FUZ_rand(&lseed) % (ZSTD_maxCLevel() - (testLog/3))) + 1;
maxTestSize = FUZ_rLogLength(&lseed, testLog); maxTestSize = FUZ_rLogLength(&lseed, testLog);
/* random dictionary selection */
{ size_t dictStart;
dictSize = (FUZ_rand(&lseed)==1) ? FUZ_randomLength(&lseed, maxSampleLog) : 0; dictSize = (FUZ_rand(&lseed)==1) ? FUZ_randomLength(&lseed, maxSampleLog) : 0;
dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); /* random dictionary selection */
{ size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize);
dict = srcBuffer + dictStart; dict = srcBuffer + dictStart;
} }
{ size_t const initError = ZBUFF_compressInitDictionary(zc, dict, dictSize, cLevel); { ZSTD_compressionParameters cPar = ZSTD_getCParams(cLevel, 0, dictSize);
U32 const checksum = FUZ_rand(&lseed) & 1;
U32 const noDictIDFlag = FUZ_rand(&lseed) & 1;
ZSTD_frameParameters const fPar = { 0, checksum, noDictIDFlag };
ZSTD_parameters params;
ZSTD_adjustCParams(&cPar, 0, dictSize);
params.cParams = cPar;
params.fParams = fPar;
{ size_t const initError = ZBUFF_compressInit_advanced(zc, dict, dictSize, params, 0);
CHECK (ZBUFF_isError(initError),"init error : %s", ZBUFF_getErrorName(initError)); CHECK (ZBUFF_isError(initError),"init error : %s", ZBUFF_getErrorName(initError));
} } } } }
/* multi-segments compression test */ /* multi-segments compression test */
XXH64_reset(&xxhState, 0); XXH64_reset(&xxhState, 0);