diff options
Diffstat (limited to 'tests/zstreamtest.c')
| -rw-r--r-- | tests/zstreamtest.c | 2477 |
1 files changed, 0 insertions, 2477 deletions
diff --git a/tests/zstreamtest.c b/tests/zstreamtest.c deleted file mode 100644 index 2047d4bd85cc..000000000000 --- a/tests/zstreamtest.c +++ /dev/null @@ -1,2477 +0,0 @@ -/* - * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. - * All rights reserved. - * - * This source code is licensed under both the BSD-style license (found in the - * LICENSE file in the root directory of this source tree) and the GPLv2 (found - * in the COPYING file in the root directory of this source tree). - * You may select, at your option, one of the above-listed licenses. - */ - - -/*-************************************ - * Compiler specific - **************************************/ -#ifdef _MSC_VER /* Visual Studio */ -# define _CRT_SECURE_NO_WARNINGS /* fgets */ -# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ -# pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */ -#endif - - -/*-************************************ - * Includes - **************************************/ -#include <stdlib.h> /* free */ -#include <stdio.h> /* fgets, sscanf */ -#include <string.h> /* strcmp */ -#include <assert.h> /* assert */ -#include "timefn.h" /* UTIL_time_t, UTIL_getTime */ -#include "mem.h" -#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel, ZSTD_customMem, ZSTD_getDictID_fromFrame */ -#include "zstd.h" /* ZSTD_compressBound */ -#include "zstd_errors.h" /* ZSTD_error_srcSize_wrong */ -#include "zstdmt_compress.h" -#include "zdict.h" /* ZDICT_trainFromBuffer */ -#include "datagen.h" /* RDG_genBuffer */ -#define XXH_STATIC_LINKING_ONLY /* XXH64_state_t */ -#include "xxhash.h" /* XXH64_* */ -#include "seqgen.h" -#include "util.h" -#include "timefn.h" /* UTIL_time_t, UTIL_clockSpanMicro, UTIL_getTime */ - - -/*-************************************ - * Constants - **************************************/ -#define KB *(1U<<10) -#define MB *(1U<<20) -#define GB *(1U<<30) - -static const int nbTestsDefault = 10000; -static const U32 g_cLevelMax_smallTests = 10; -#define COMPRESSIBLE_NOISE_LENGTH (10 MB) -#define FUZ_COMPRESSIBILITY_DEFAULT 50 -static const U32 prime32 = 2654435761U; - - -/*-************************************ - * Display Macros - **************************************/ -#define DISPLAY(...) fprintf(stderr, __VA_ARGS__) -#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { \ - DISPLAY(__VA_ARGS__); \ - if (g_displayLevel>=4) fflush(stderr); } -static U32 g_displayLevel = 2; - -static const U64 g_refreshRate = SEC_TO_MICRO / 6; -static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER; - -#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \ - if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (g_displayLevel>=4)) \ - { g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \ - if (g_displayLevel>=4) fflush(stderr); } } - -static U64 g_clockTime = 0; - - -/*-******************************************************* - * Check macros - *********************************************************/ -#undef MIN -#undef MAX -#define MIN(a,b) ((a)<(b)?(a):(b)) -#define MAX(a,b) ((a)>(b)?(a):(b)) -/*! FUZ_rand() : - @return : a 27 bits random value, from a 32-bits `seed`. - `seed` is also modified */ -#define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r))) -static U32 FUZ_rand(U32* seedPtr) -{ - static const U32 prime2 = 2246822519U; - U32 rand32 = *seedPtr; - rand32 *= prime32; - rand32 += prime2; - rand32 = FUZ_rotl32(rand32, 13); - *seedPtr = rand32; - return rand32 >> 5; -} - -#define CHECK(cond, ...) { \ - if (cond) { \ - DISPLAY("Error => "); \ - DISPLAY(__VA_ARGS__); \ - DISPLAY(" (seed %u, test nb %u, line %u) \n", \ - (unsigned)seed, testNb, __LINE__); \ - goto _output_error; \ -} } - -#define CHECK_Z(f) { \ - size_t const err = f; \ - CHECK(ZSTD_isError(err), "%s : %s ", \ - #f, ZSTD_getErrorName(err)); \ -} - -#define CHECK_RET(ret, cond, ...) { \ - if (cond) { \ - DISPLAY("Error %llu => ", (unsigned long long)ret); \ - DISPLAY(__VA_ARGS__); \ - DISPLAY(" (line %u)\n", __LINE__); \ - return ret; \ -} } - -#define CHECK_RET_Z(f) { \ - size_t const err = f; \ - CHECK_RET(err, ZSTD_isError(err), "%s : %s ", \ - #f, ZSTD_getErrorName(err)); \ -} - - -/*====================================================== - * Basic Unit tests - *======================================================*/ - -typedef struct { - void* start; - size_t size; - size_t filled; -} buffer_t; - -static const buffer_t kBuffNull = { NULL, 0 , 0 }; - -static void FUZ_freeDictionary(buffer_t dict) -{ - free(dict.start); -} - -static buffer_t FUZ_createDictionary(const void* src, size_t srcSize, size_t blockSize, size_t requestedDictSize) -{ - buffer_t dict = kBuffNull; - size_t const nbBlocks = (srcSize + (blockSize-1)) / blockSize; - size_t* const blockSizes = (size_t*)malloc(nbBlocks * sizeof(size_t)); - if (!blockSizes) return kBuffNull; - dict.start = malloc(requestedDictSize); - if (!dict.start) { free(blockSizes); return kBuffNull; } - { size_t nb; - for (nb=0; nb<nbBlocks-1; nb++) blockSizes[nb] = blockSize; - blockSizes[nbBlocks-1] = srcSize - (blockSize * (nbBlocks-1)); - } - { size_t const dictSize = ZDICT_trainFromBuffer(dict.start, requestedDictSize, src, blockSizes, (unsigned)nbBlocks); - free(blockSizes); - if (ZDICT_isError(dictSize)) { FUZ_freeDictionary(dict); return kBuffNull; } - dict.size = requestedDictSize; - dict.filled = dictSize; - return dict; - } -} - -/* Round trips data and updates xxh with the decompressed data produced */ -static size_t SEQ_roundTrip(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx, - XXH64_state_t* xxh, void* data, size_t size, - ZSTD_EndDirective endOp) -{ - static BYTE compressed[1024]; - static BYTE uncompressed[1024]; - - ZSTD_inBuffer cin = {data, size, 0}; - size_t cret; - - do { - ZSTD_outBuffer cout = { compressed, sizeof(compressed), 0 }; - ZSTD_inBuffer din = { compressed, 0, 0 }; - ZSTD_outBuffer dout = { uncompressed, 0, 0 }; - - cret = ZSTD_compressStream2(cctx, &cout, &cin, endOp); - if (ZSTD_isError(cret)) - return cret; - - din.size = cout.pos; - while (din.pos < din.size || (endOp == ZSTD_e_end && cret == 0)) { - size_t dret; - - dout.pos = 0; - dout.size = sizeof(uncompressed); - dret = ZSTD_decompressStream(dctx, &dout, &din); - if (ZSTD_isError(dret)) - return dret; - XXH64_update(xxh, dout.dst, dout.pos); - if (dret == 0) - break; - } - } while (cin.pos < cin.size || (endOp != ZSTD_e_continue && cret != 0)); - return 0; -} - -/* Generates some data and round trips it */ -static size_t SEQ_generateRoundTrip(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx, - XXH64_state_t* xxh, SEQ_stream* seq, - SEQ_gen_type type, unsigned value) -{ - static BYTE data[1024]; - size_t gen; - - do { - SEQ_outBuffer sout = {data, sizeof(data), 0}; - size_t ret; - gen = SEQ_gen(seq, type, value, &sout); - - ret = SEQ_roundTrip(cctx, dctx, xxh, sout.dst, sout.pos, ZSTD_e_continue); - if (ZSTD_isError(ret)) - return ret; - } while (gen != 0); - - return 0; -} - -static size_t getCCtxParams(ZSTD_CCtx* zc, ZSTD_parameters* savedParams) -{ - int value; - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_windowLog, (int*)&savedParams->cParams.windowLog)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_hashLog, (int*)&savedParams->cParams.hashLog)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_chainLog, (int*)&savedParams->cParams.chainLog)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_searchLog, (int*)&savedParams->cParams.searchLog)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_minMatch, (int*)&savedParams->cParams.minMatch)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_targetLength, (int*)&savedParams->cParams.targetLength)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_strategy, &value)); - savedParams->cParams.strategy = value; - - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_checksumFlag, &savedParams->fParams.checksumFlag)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_contentSizeFlag, &savedParams->fParams.contentSizeFlag)); - CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_dictIDFlag, &value)); - savedParams->fParams.noDictIDFlag = !value; - return 0; -} - -static U32 badParameters(ZSTD_CCtx* zc, ZSTD_parameters const savedParams) -{ - ZSTD_parameters params; - if (ZSTD_isError(getCCtxParams(zc, ¶ms))) return 10; - CHECK_RET(1, params.cParams.windowLog != savedParams.cParams.windowLog, "windowLog"); - CHECK_RET(2, params.cParams.hashLog != savedParams.cParams.hashLog, "hashLog"); - CHECK_RET(3, params.cParams.chainLog != savedParams.cParams.chainLog, "chainLog"); - CHECK_RET(4, params.cParams.searchLog != savedParams.cParams.searchLog, "searchLog"); - CHECK_RET(5, params.cParams.minMatch != savedParams.cParams.minMatch, "minMatch"); - CHECK_RET(6, params.cParams.targetLength != savedParams.cParams.targetLength, "targetLength"); - - CHECK_RET(7, params.fParams.checksumFlag != savedParams.fParams.checksumFlag, "checksumFlag"); - CHECK_RET(8, params.fParams.contentSizeFlag != savedParams.fParams.contentSizeFlag, "contentSizeFlag"); - CHECK_RET(9, params.fParams.noDictIDFlag != savedParams.fParams.noDictIDFlag, "noDictIDFlag"); - return 0; -} - -static int basicUnitTests(U32 seed, double compressibility) -{ - size_t const CNBufferSize = COMPRESSIBLE_NOISE_LENGTH; - void* CNBuffer = malloc(CNBufferSize); - size_t const skippableFrameSize = 200 KB; - size_t const compressedBufferSize = (8 + skippableFrameSize) + ZSTD_compressBound(COMPRESSIBLE_NOISE_LENGTH); - void* compressedBuffer = malloc(compressedBufferSize); - size_t const decodedBufferSize = CNBufferSize; - void* decodedBuffer = malloc(decodedBufferSize); - size_t cSize; - int testResult = 0; - int testNb = 1; - U32 coreSeed = 0; /* this name to conform with CHECK_Z macro display */ - ZSTD_CStream* zc = ZSTD_createCStream(); - ZSTD_DStream* zd = ZSTD_createDStream(); - ZSTDMT_CCtx* mtctx = ZSTDMT_createCCtx(2); - - ZSTD_inBuffer inBuff, inBuff2; - ZSTD_outBuffer outBuff; - buffer_t dictionary = kBuffNull; - size_t const dictSize = 128 KB; - unsigned dictID = 0; - - /* Create compressible test buffer */ - if (!CNBuffer || !compressedBuffer || !decodedBuffer || !zc || !zd) { - DISPLAY("Not enough memory, aborting \n"); - goto _output_error; - } - RDG_genBuffer(CNBuffer, CNBufferSize, compressibility, 0., seed); - - /* Create dictionary */ - DISPLAYLEVEL(3, "creating dictionary for unit tests \n"); - dictionary = FUZ_createDictionary(CNBuffer, CNBufferSize / 3, 16 KB, 48 KB); - if (!dictionary.start) { - DISPLAY("Error creating dictionary, aborting \n"); - goto _output_error; - } - dictID = ZDICT_getDictID(dictionary.start, dictionary.filled); - - /* Basic compression test */ - DISPLAYLEVEL(3, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); - CHECK_Z( ZSTD_initCStream(zc, 1 /* cLevel */) ); - outBuff.dst = (char*)(compressedBuffer); - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - { size_t const r = ZSTD_endStream(zc, &outBuff); - if (r != 0) goto _output_error; } /* error, or some data not flushed */ - DISPLAYLEVEL(3, "OK (%u bytes)\n", (unsigned)outBuff.pos); - - /* generate skippable frame */ - MEM_writeLE32(compressedBuffer, ZSTD_MAGIC_SKIPPABLE_START); - MEM_writeLE32(((char*)compressedBuffer)+4, (U32)skippableFrameSize); - cSize = skippableFrameSize + 8; - - /* Basic compression test using dict */ - DISPLAYLEVEL(3, "test%3i : skipframe + compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); - CHECK_Z( ZSTD_initCStream_usingDict(zc, CNBuffer, dictSize, 1 /* cLevel */) ); - outBuff.dst = (char*)(compressedBuffer)+cSize; - assert(compressedBufferSize > cSize); - outBuff.size = compressedBufferSize - cSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - { size_t const r = ZSTD_endStream(zc, &outBuff); - if (r != 0) goto _output_error; } /* error, or some data not flushed */ - cSize += outBuff.pos; - DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", - (unsigned)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100); - - /* context size functions */ - DISPLAYLEVEL(3, "test%3i : estimate CStream size : ", testNb++); - { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBufferSize, dictSize); - size_t const cstreamSize = ZSTD_estimateCStreamSize_usingCParams(cParams); - size_t const cdictSize = ZSTD_estimateCDictSize_advanced(dictSize, cParams, ZSTD_dlm_byCopy); /* uses ZSTD_initCStream_usingDict() */ - if (ZSTD_isError(cstreamSize)) goto _output_error; - if (ZSTD_isError(cdictSize)) goto _output_error; - DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)(cstreamSize + cdictSize)); - } - - /* context size functions */ - DISPLAYLEVEL(3, "test%3i : estimate CStream size using CCtxParams : ", testNb++); - { ZSTD_CCtx_params* const params = ZSTD_createCCtxParams(); - size_t cstreamSize, cctxSize; - CHECK_Z( ZSTD_CCtxParams_setParameter(params, ZSTD_c_compressionLevel, 19) ); - cstreamSize = ZSTD_estimateCStreamSize_usingCCtxParams(params); - CHECK_Z(cstreamSize); - cctxSize = ZSTD_estimateCCtxSize_usingCCtxParams(params); - CHECK_Z(cctxSize); - if (cstreamSize <= cctxSize + 2 * ZSTD_BLOCKSIZE_MAX) goto _output_error; - ZSTD_freeCCtxParams(params); - DISPLAYLEVEL(3, "OK \n"); - } - - DISPLAYLEVEL(3, "test%3i : check actual CStream size : ", testNb++); - { size_t const s = ZSTD_sizeof_CStream(zc); - if (ZSTD_isError(s)) goto _output_error; - DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); - } - - /* Attempt bad compression parameters */ - DISPLAYLEVEL(3, "test%3i : use bad compression parameters : ", testNb++); - { size_t r; - ZSTD_parameters params = ZSTD_getParams(1, 0, 0); - params.cParams.minMatch = 2; - r = ZSTD_initCStream_advanced(zc, NULL, 0, params, 0); - if (!ZSTD_isError(r)) goto _output_error; - DISPLAYLEVEL(3, "init error : %s \n", ZSTD_getErrorName(r)); - } - - /* skippable frame test */ - DISPLAYLEVEL(3, "test%3i : decompress skippable frame : ", testNb++); - CHECK_Z( ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize) ); - inBuff.src = compressedBuffer; - inBuff.size = cSize; - inBuff.pos = 0; - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - { size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff); - DISPLAYLEVEL(5, " ( ZSTD_decompressStream => %u ) ", (unsigned)r); - if (r != 0) goto _output_error; - } - if (outBuff.pos != 0) goto _output_error; /* skippable frame output len is 0 */ - DISPLAYLEVEL(3, "OK \n"); - - /* Basic decompression test */ - inBuff2 = inBuff; - DISPLAYLEVEL(3, "test%3i : decompress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); - ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); - CHECK_Z( ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, ZSTD_WINDOWLOG_LIMIT_DEFAULT+1) ); /* large limit */ - { size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (remaining != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ - if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ - if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */ - DISPLAYLEVEL(3, "OK \n"); - - /* Re-use without init */ - DISPLAYLEVEL(3, "test%3i : decompress again without init (re-use previous settings): ", testNb++); - outBuff.pos = 0; - { size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inBuff2); - if (remaining != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ - if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ - if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */ - DISPLAYLEVEL(3, "OK \n"); - - /* check regenerated data is byte exact */ - DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); - { size_t i; - for (i=0; i<CNBufferSize; i++) { - if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error; - } } - DISPLAYLEVEL(3, "OK \n"); - - /* context size functions */ - DISPLAYLEVEL(3, "test%3i : estimate DStream size : ", testNb++); - { ZSTD_frameHeader fhi; - const void* cStart = (char*)compressedBuffer + (skippableFrameSize + 8); - size_t const gfhError = ZSTD_getFrameHeader(&fhi, cStart, cSize); - if (gfhError!=0) goto _output_error; - DISPLAYLEVEL(5, " (windowSize : %u) ", (unsigned)fhi.windowSize); - { size_t const s = ZSTD_estimateDStreamSize(fhi.windowSize) - /* uses ZSTD_initDStream_usingDict() */ - + ZSTD_estimateDDictSize(dictSize, ZSTD_dlm_byCopy); - if (ZSTD_isError(s)) goto _output_error; - DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); - } } - - DISPLAYLEVEL(3, "test%3i : check actual DStream size : ", testNb++); - { size_t const s = ZSTD_sizeof_DStream(zd); - if (ZSTD_isError(s)) goto _output_error; - DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); - } - - /* Decompression by small increment */ - DISPLAYLEVEL(3, "test%3i : decompress byte-by-byte : ", testNb++); - { /* skippable frame */ - size_t r = 1; - ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); - inBuff.src = compressedBuffer; - outBuff.dst = decodedBuffer; - inBuff.pos = 0; - outBuff.pos = 0; - while (r) { /* skippable frame */ - size_t const inSize = (FUZ_rand(&coreSeed) & 15) + 1; - size_t const outSize = (FUZ_rand(&coreSeed) & 15) + 1; - inBuff.size = inBuff.pos + inSize; - outBuff.size = outBuff.pos + outSize; - r = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream on skippable frame error : %s \n", ZSTD_getErrorName(r)); - if (ZSTD_isError(r)) goto _output_error; - } - /* normal frame */ - ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); - r=1; - while (r) { - size_t const inSize = FUZ_rand(&coreSeed) & 15; - size_t const outSize = (FUZ_rand(&coreSeed) & 15) + (!inSize); /* avoid having both sizes at 0 => would trigger a no_forward_progress error */ - inBuff.size = inBuff.pos + inSize; - outBuff.size = outBuff.pos + outSize; - r = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(r)); - if (ZSTD_isError(r)) goto _output_error; - } - } - if (outBuff.pos != CNBufferSize) DISPLAYLEVEL(4, "outBuff.pos != CNBufferSize : should have regenerated same amount ! \n"); - if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ - if (inBuff.pos != cSize) DISPLAYLEVEL(4, "inBuff.pos != cSize : should have real all input ! \n"); - if (inBuff.pos != cSize) goto _output_error; /* should have read the entire frame */ - DISPLAYLEVEL(3, "OK \n"); - - /* check regenerated data is byte exact */ - DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); - { size_t i; - for (i=0; i<CNBufferSize; i++) { - if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error; - } } - DISPLAYLEVEL(3, "OK \n"); - - /* Decompression forward progress */ - DISPLAYLEVEL(3, "test%3i : generate error when ZSTD_decompressStream() doesn't progress : ", testNb++); - { /* skippable frame */ - size_t r = 0; - int decNb = 0; - int const maxDec = 100; - inBuff.src = compressedBuffer; - inBuff.size = cSize; - inBuff.pos = 0; - - outBuff.dst = decodedBuffer; - outBuff.pos = 0; - outBuff.size = CNBufferSize-1; /* 1 byte missing */ - - for (decNb=0; decNb<maxDec; decNb++) { - if (r==0) ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); - r = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(r)) break; - } - if (!ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream should have triggered a no_forward_progress error \n"); - if (!ZSTD_isError(r)) goto _output_error; /* should have triggered no_forward_progress error */ - } - DISPLAYLEVEL(3, "OK \n"); - - /* _srcSize compression test */ - DISPLAYLEVEL(3, "test%3i : compress_srcSize %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); - CHECK_Z( ZSTD_initCStream_srcSize(zc, 1, CNBufferSize) ); - outBuff.dst = (char*)(compressedBuffer); - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - CHECK(inBuff.pos != inBuff.size, "Entire input should be consumed"); - { size_t const r = ZSTD_endStream(zc, &outBuff); - CHECK(r != 0, "Error or some data not flushed (ret=%zu)", r); - } - { unsigned long long origSize = ZSTD_findDecompressedSize(outBuff.dst, outBuff.pos); - CHECK(origSize == ZSTD_CONTENTSIZE_UNKNOWN, "Unknown!"); - CHECK((size_t)origSize != CNBufferSize, "Exact original size must be present (got %llu)", origSize); - } - DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100); - - /* wrong _srcSize compression test */ - DISPLAYLEVEL(3, "test%3i : too large srcSize : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1); - ZSTD_initCStream_srcSize(zc, 1, CNBufferSize+1); - outBuff.dst = (char*)(compressedBuffer); - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - { size_t const r = ZSTD_endStream(zc, &outBuff); - if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */ - DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); } - - /* wrong _srcSize compression test */ - DISPLAYLEVEL(3, "test%3i : too small srcSize : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1); - ZSTD_initCStream_srcSize(zc, 1, CNBufferSize-1); - outBuff.dst = (char*)(compressedBuffer); - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - { size_t const r = ZSTD_compressStream(zc, &outBuff, &inBuff); - if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */ - DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); - } - - DISPLAYLEVEL(3, "test%3i : wrong srcSize !contentSizeFlag : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1); - { ZSTD_parameters params = ZSTD_getParams(1, CNBufferSize, 0); - params.fParams.contentSizeFlag = 0; - CHECK_Z(ZSTD_initCStream_advanced(zc, NULL, 0, params, CNBufferSize - MIN(CNBufferSize, 200 KB))); - outBuff.dst = (char*)compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - { size_t const r = ZSTD_compressStream(zc, &outBuff, &inBuff); - if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */ - DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); - } } - - /* Complex context re-use scenario */ - DISPLAYLEVEL(3, "test%3i : context re-use : ", testNb++); - ZSTD_freeCStream(zc); - zc = ZSTD_createCStream(); - if (zc==NULL) goto _output_error; /* memory allocation issue */ - /* use 1 */ - { size_t const inSize = 513; - DISPLAYLEVEL(5, "use1 "); - ZSTD_initCStream_advanced(zc, NULL, 0, ZSTD_getParams(19, inSize, 0), inSize); /* needs btopt + search3 to trigger hashLog3 */ - inBuff.src = CNBuffer; - inBuff.size = inSize; - inBuff.pos = 0; - outBuff.dst = (char*)(compressedBuffer)+cSize; - outBuff.size = ZSTD_compressBound(inSize); - outBuff.pos = 0; - DISPLAYLEVEL(5, "compress1 "); - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - DISPLAYLEVEL(5, "end1 "); - { size_t const r = ZSTD_endStream(zc, &outBuff); - if (r != 0) goto _output_error; } /* error, or some data not flushed */ - } - /* use 2 */ - { size_t const inSize = 1025; /* will not continue, because tables auto-adjust and are therefore different size */ - DISPLAYLEVEL(5, "use2 "); - ZSTD_initCStream_advanced(zc, NULL, 0, ZSTD_getParams(19, inSize, 0), inSize); /* needs btopt + search3 to trigger hashLog3 */ - inBuff.src = CNBuffer; - inBuff.size = inSize; - inBuff.pos = 0; - outBuff.dst = (char*)(compressedBuffer)+cSize; - outBuff.size = ZSTD_compressBound(inSize); - outBuff.pos = 0; - DISPLAYLEVEL(5, "compress2 "); - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - DISPLAYLEVEL(5, "end2 "); - { size_t const r = ZSTD_endStream(zc, &outBuff); - if (r != 0) goto _output_error; } /* error, or some data not flushed */ - } - DISPLAYLEVEL(3, "OK \n"); - - /* CDict scenario */ - DISPLAYLEVEL(3, "test%3i : digested dictionary : ", testNb++); - { ZSTD_CDict* const cdict = ZSTD_createCDict(dictionary.start, dictionary.filled, 1 /*byRef*/ ); - size_t const initError = ZSTD_initCStream_usingCDict(zc, cdict); - DISPLAYLEVEL(5, "ZSTD_initCStream_usingCDict result : %u ", (unsigned)initError); - if (ZSTD_isError(initError)) goto _output_error; - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - DISPLAYLEVEL(5, "- starting ZSTD_compressStream "); - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - { size_t const r = ZSTD_endStream(zc, &outBuff); - DISPLAYLEVEL(5, "- ZSTD_endStream result : %u ", (unsigned)r); - if (r != 0) goto _output_error; /* error, or some data not flushed */ - } - cSize = outBuff.pos; - ZSTD_freeCDict(cdict); - DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); - } - - DISPLAYLEVEL(3, "test%3i : check CStream size : ", testNb++); - { size_t const s = ZSTD_sizeof_CStream(zc); - if (ZSTD_isError(s)) goto _output_error; - DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); - } - - DISPLAYLEVEL(4, "test%3i : check Dictionary ID : ", testNb++); - { unsigned const dID = ZSTD_getDictID_fromFrame(compressedBuffer, cSize); - if (dID != dictID) goto _output_error; - DISPLAYLEVEL(4, "OK (%u) \n", dID); - } - - /* DDict scenario */ - DISPLAYLEVEL(3, "test%3i : decompress %u bytes with digested dictionary : ", testNb++, (unsigned)CNBufferSize); - { ZSTD_DDict* const ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); - size_t const initError = ZSTD_initDStream_usingDDict(zd, ddict); - if (ZSTD_isError(initError)) goto _output_error; - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - inBuff.src = compressedBuffer; - inBuff.size = cSize; - inBuff.pos = 0; - { size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (r != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ - if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ - if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */ - ZSTD_freeDDict(ddict); - DISPLAYLEVEL(3, "OK \n"); - } - - /* Memory restriction */ - DISPLAYLEVEL(3, "test%3i : maxWindowSize < frame requirement : ", testNb++); - ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); - CHECK_Z( ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, 10) ); /* too small limit */ - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - inBuff.src = compressedBuffer; - inBuff.size = cSize; - inBuff.pos = 0; - { size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (!ZSTD_isError(r)) goto _output_error; /* must fail : frame requires > 100 bytes */ - DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); } - ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters); /* leave zd in good shape for next tests */ - - DISPLAYLEVEL(3, "test%3i : dictionary source size and level : ", testNb++); - { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); - int const maxLevel = 16; /* first level with zstd_opt */ - int level; - assert(maxLevel < ZSTD_maxCLevel()); - CHECK_Z( ZSTD_DCtx_loadDictionary_byReference(dctx, dictionary.start, dictionary.filled) ); - for (level = 1; level <= maxLevel; ++level) { - ZSTD_CDict* const cdict = ZSTD_createCDict(dictionary.start, dictionary.filled, level); - size_t const maxSize = MIN(1 MB, CNBufferSize); - size_t size; - for (size = 512; size <= maxSize; size <<= 1) { - U64 const crcOrig = XXH64(CNBuffer, size, 0); - ZSTD_CCtx* const cctx = ZSTD_createCCtx(); - ZSTD_parameters savedParams; - getCCtxParams(cctx, &savedParams); - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = size; - inBuff.pos = 0; - CHECK_Z(ZSTD_CCtx_refCDict(cctx, cdict)); - CHECK_Z(ZSTD_compressStream2(cctx, &outBuff, &inBuff, ZSTD_e_end)); - CHECK(badParameters(cctx, savedParams), "Bad CCtx params"); - if (inBuff.pos != inBuff.size) goto _output_error; - { ZSTD_outBuffer decOut = {decodedBuffer, size, 0}; - ZSTD_inBuffer decIn = {outBuff.dst, outBuff.pos, 0}; - CHECK_Z( ZSTD_decompressStream(dctx, &decOut, &decIn) ); - if (decIn.pos != decIn.size) goto _output_error; - if (decOut.pos != size) goto _output_error; - { U64 const crcDec = XXH64(decOut.dst, decOut.pos, 0); - if (crcDec != crcOrig) goto _output_error; - } } - ZSTD_freeCCtx(cctx); - } - ZSTD_freeCDict(cdict); - } - ZSTD_freeDCtx(dctx); - } - DISPLAYLEVEL(3, "OK\n"); - - ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters); - CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dictionary.start, dictionary.filled) ); - cSize = ZSTD_compress2(zc, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBufferSize, 100 KB)); - CHECK_Z(cSize); - DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() with dictionary : ", testNb++); - { - ZSTD_DCtx* dctx = ZSTD_createDCtx(); - /* We should fail to decompress without a dictionary. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - size_t const ret = ZSTD_decompressStream(dctx, &out, &in); - if (!ZSTD_isError(ret)) goto _output_error; - } - /* We should succeed to decompress with the dictionary. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); - CHECK_Z( ZSTD_DCtx_loadDictionary(dctx, dictionary.start, dictionary.filled) ); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* The dictionary should presist across calls. */ - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* The dictionary should not be cleared by ZSTD_reset_session_only. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* When we reset the context the dictionary is cleared. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - size_t const ret = ZSTD_decompressStream(dctx, &out, &in); - if (!ZSTD_isError(ret)) goto _output_error; - } - ZSTD_freeDCtx(dctx); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_resetDStream() with dictionary : ", testNb++); - { - ZSTD_DCtx* dctx = ZSTD_createDCtx(); - /* We should succeed to decompress with the dictionary. */ - ZSTD_resetDStream(dctx); - CHECK_Z( ZSTD_DCtx_loadDictionary(dctx, dictionary.start, dictionary.filled) ); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* The dictionary should not be cleared by ZSTD_resetDStream(). */ - ZSTD_resetDStream(dctx); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* The dictionary should be cleared by ZSTD_initDStream(). */ - CHECK_Z( ZSTD_initDStream(dctx) ); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - size_t const ret = ZSTD_decompressStream(dctx, &out, &in); - if (!ZSTD_isError(ret)) goto _output_error; - } - ZSTD_freeDCtx(dctx); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() with ddict : ", testNb++); - { - ZSTD_DCtx* dctx = ZSTD_createDCtx(); - ZSTD_DDict* ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); - /* We should succeed to decompress with the ddict. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); - CHECK_Z( ZSTD_DCtx_refDDict(dctx, ddict) ); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* The ddict should presist across calls. */ - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* When we reset the context the ddict is cleared. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - size_t const ret = ZSTD_decompressStream(dctx, &out, &in); - if (!ZSTD_isError(ret)) goto _output_error; - } - ZSTD_freeDCtx(dctx); - ZSTD_freeDDict(ddict); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_decompressDCtx() with prefix : ", testNb++); - { - ZSTD_DCtx* dctx = ZSTD_createDCtx(); - /* We should succeed to decompress with the prefix. */ - ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); - CHECK_Z( ZSTD_DCtx_refPrefix_advanced(dctx, dictionary.start, dictionary.filled, ZSTD_dct_auto) ); - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; - if (in.pos != in.size) goto _output_error; - } - /* The prefix should be cleared after the first compression. */ - { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; - ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; - size_t const ret = ZSTD_decompressStream(dctx, &out, &in); - if (!ZSTD_isError(ret)) goto _output_error; - } - ZSTD_freeDCtx(dctx); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_initDStream*() with dictionary : ", testNb++); - { - ZSTD_DCtx* dctx = ZSTD_createDCtx(); - ZSTD_DDict* ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); - size_t ret; - /* We should succeed to decompress with the dictionary. */ - CHECK_Z( ZSTD_initDStream_usingDict(dctx, dictionary.start, dictionary.filled) ); - CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); - /* The dictionary should presist across calls. */ - CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); - /* We should succeed to decompress with the ddict. */ - CHECK_Z( ZSTD_initDStream_usingDDict(dctx, ddict) ); - CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); - /* The ddict should presist across calls. */ - CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); - /* When we reset the context the ddict is cleared. */ - CHECK_Z( ZSTD_initDStream(dctx) ); - ret = ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize); - if (!ZSTD_isError(ret)) goto _output_error; - ZSTD_freeDCtx(dctx); - ZSTD_freeDDict(ddict); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_usingCDict_advanced with masked dictID : ", testNb++); - { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBufferSize, dictionary.filled); - ZSTD_frameParameters const fParams = { 1 /* contentSize */, 1 /* checksum */, 1 /* noDictID */}; - ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_auto, cParams, ZSTD_defaultCMem); - size_t const initError = ZSTD_initCStream_usingCDict_advanced(zc, cdict, fParams, CNBufferSize); - if (ZSTD_isError(initError)) goto _output_error; - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - { size_t const r = ZSTD_endStream(zc, &outBuff); - if (r != 0) goto _output_error; } /* error, or some data not flushed */ - cSize = outBuff.pos; - ZSTD_freeCDict(cdict); - DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); - } - - DISPLAYLEVEL(3, "test%3i : try retrieving dictID from frame : ", testNb++); - { U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize); - if (did != 0) goto _output_error; - } - DISPLAYLEVEL(3, "OK (not detected) \n"); - - DISPLAYLEVEL(3, "test%3i : decompress without dictionary : ", testNb++); - { size_t const r = ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize); - if (!ZSTD_isError(r)) goto _output_error; /* must fail : dictionary not used */ - DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); - } - - DISPLAYLEVEL(3, "test%3i : compress with ZSTD_CCtx_refPrefix : ", testNb++); - CHECK_Z( ZSTD_CCtx_refPrefix(zc, dictionary.start, dictionary.filled) ); - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - cSize = outBuff.pos; - DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); - - DISPLAYLEVEL(3, "test%3i : decompress with ZSTD_DCtx_refPrefix : ", testNb++); - CHECK_Z( ZSTD_DCtx_refPrefix(zd, dictionary.start, dictionary.filled) ); - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - inBuff.src = compressedBuffer; - inBuff.size = cSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_decompressStream(zd, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - if (outBuff.pos != CNBufferSize) goto _output_error; /* must regenerate whole input */ - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : decompress without dictionary (should fail): ", testNb++); - { size_t const r = ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize); - if (!ZSTD_isError(r)) goto _output_error; /* must fail : dictionary not used */ - DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); - } - - DISPLAYLEVEL(3, "test%3i : compress again with ZSTD_compressStream2 : ", testNb++); - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - cSize = outBuff.pos; - DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); - - DISPLAYLEVEL(3, "test%3i : decompress without dictionary (should work): ", testNb++); - CHECK_Z( ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize) ); - DISPLAYLEVEL(3, "OK \n"); - - /* Empty srcSize */ - DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_advanced with pledgedSrcSize=0 and dict : ", testNb++); - { ZSTD_parameters params = ZSTD_getParams(5, 0, 0); - params.fParams.contentSizeFlag = 1; - CHECK_Z( ZSTD_initCStream_advanced(zc, dictionary.start, dictionary.filled, params, 0 /* pledgedSrcSize==0 means "empty" when params.fParams.contentSizeFlag is set */) ); - } /* cstream advanced shall write content size = 0 */ - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = 0; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; - cSize = outBuff.pos; - if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != 0) goto _output_error; - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : pledgedSrcSize == 0 behaves properly : ", testNb++); - { ZSTD_parameters params = ZSTD_getParams(5, 0, 0); - params.fParams.contentSizeFlag = 1; - CHECK_Z( ZSTD_initCStream_advanced(zc, NULL, 0, params, 0) ); - } /* cstream advanced shall write content size = 0 */ - inBuff.src = CNBuffer; - inBuff.size = 0; - inBuff.pos = 0; - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; - cSize = outBuff.pos; - if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != 0) goto _output_error; - - ZSTD_resetCStream(zc, 0); /* resetCStream should treat 0 as unknown */ - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = 0; - inBuff.pos = 0; - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; - cSize = outBuff.pos; - if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != ZSTD_CONTENTSIZE_UNKNOWN) goto _output_error; - DISPLAYLEVEL(3, "OK \n"); - - /* Basic multithreading compression test */ - DISPLAYLEVEL(3, "test%3i : compress %u bytes with multiple threads : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); - { ZSTD_parameters const params = ZSTD_getParams(1, 0, 0); - int jobSize; - CHECK_Z( ZSTDMT_getMTCtxParameter(mtctx, ZSTDMT_p_jobSize, &jobSize)); - CHECK(jobSize != 0, "job size non-zero"); - CHECK_Z( ZSTDMT_initCStream_advanced(mtctx, CNBuffer, dictSize, params, CNBufferSize) ); - CHECK_Z( ZSTDMT_getMTCtxParameter(mtctx, ZSTDMT_p_jobSize, &jobSize)); - CHECK(jobSize != 0, "job size non-zero"); - } - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = CNBufferSize; - inBuff.pos = 0; - { size_t const compressResult = ZSTDMT_compressStream_generic(mtctx, &outBuff, &inBuff, ZSTD_e_end); - if (compressResult != 0) goto _output_error; /* compression must be completed in a single round */ - } - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - { size_t const compressedSize = ZSTD_findFrameCompressedSize(compressedBuffer, outBuff.pos); - if (compressedSize != outBuff.pos) goto _output_error; /* must be a full valid frame */ - } - DISPLAYLEVEL(3, "OK \n"); - - /* Complex multithreading + dictionary test */ - { U32 const nbWorkers = 2; - size_t const jobSize = 4 * 1 MB; - size_t const srcSize = jobSize * nbWorkers; /* we want each job to have predictable size */ - size_t const segLength = 2 KB; - size_t const offset = 600 KB; /* must be larger than window defined in cdict */ - size_t const start = jobSize + (offset-1); - const BYTE* const srcToCopy = (const BYTE*)CNBuffer + start; - BYTE* const dst = (BYTE*)CNBuffer + start - offset; - DISPLAYLEVEL(3, "test%3i : compress %u bytes with multiple threads + dictionary : ", testNb++, (unsigned)srcSize); - CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 3) ); - CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_nbWorkers, nbWorkers) ); - CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_jobSize, jobSize) ); - assert(start > offset); - assert(start + segLength < COMPRESSIBLE_NOISE_LENGTH); - memcpy(dst, srcToCopy, segLength); /* create a long repetition at long distance for job 2 */ - outBuff.dst = compressedBuffer; - outBuff.size = compressedBufferSize; - outBuff.pos = 0; - inBuff.src = CNBuffer; - inBuff.size = srcSize; assert(srcSize < COMPRESSIBLE_NOISE_LENGTH); - inBuff.pos = 0; - } - { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, 4 KB, dictionary.filled); /* intentionally lies on estimatedSrcSize, to push cdict into targeting a small window size */ - ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem); - DISPLAYLEVEL(5, "cParams.windowLog = %u : ", cParams.windowLog); - CHECK_Z( ZSTD_CCtx_refCDict(zc, cdict) ); - CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) ); - CHECK_Z( ZSTD_CCtx_refCDict(zc, NULL) ); /* do not keep a reference to cdict, as its lifetime ends */ - ZSTD_freeCDict(cdict); - } - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - cSize = outBuff.pos; - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : decompress large frame created from multiple threads + dictionary : ", testNb++); - { ZSTD_DStream* const dstream = ZSTD_createDCtx(); - ZSTD_frameHeader zfh; - ZSTD_getFrameHeader(&zfh, compressedBuffer, cSize); - DISPLAYLEVEL(5, "frame windowsize = %u : ", (unsigned)zfh.windowSize); - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - inBuff.src = compressedBuffer; - inBuff.pos = 0; - CHECK_Z( ZSTD_initDStream_usingDict(dstream, dictionary.start, dictionary.filled) ); - inBuff.size = 1; /* avoid shortcut to single-pass mode */ - CHECK_Z( ZSTD_decompressStream(dstream, &outBuff, &inBuff) ); - inBuff.size = cSize; - CHECK_Z( ZSTD_decompressStream(dstream, &outBuff, &inBuff) ); - if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ - ZSTD_freeDStream(dstream); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : check dictionary FSE tables can represent every code : ", testNb++); - { unsigned const kMaxWindowLog = 24; - unsigned value; - ZSTD_compressionParameters cParams = ZSTD_getCParams(3, 1U << kMaxWindowLog, 1024); - ZSTD_CDict* cdict; - ZSTD_DDict* ddict; - SEQ_stream seq = SEQ_initStream(0x87654321); - SEQ_gen_type type; - XXH64_state_t xxh; - - XXH64_reset(&xxh, 0); - cParams.windowLog = kMaxWindowLog; - cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem); - ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); - - if (!cdict || !ddict) goto _output_error; - - ZSTD_CCtx_reset(zc, ZSTD_reset_session_only); - ZSTD_resetDStream(zd); - CHECK_Z(ZSTD_CCtx_refCDict(zc, cdict)); - CHECK_Z(ZSTD_initDStream_usingDDict(zd, ddict)); - CHECK_Z(ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, kMaxWindowLog)); - /* Test all values < 300 */ - for (value = 0; value < 300; ++value) { - for (type = (SEQ_gen_type)0; type < SEQ_gen_max; ++type) { - CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value)); - } - } - /* Test values 2^8 to 2^17 */ - for (value = (1 << 8); value < (1 << 17); value <<= 1) { - for (type = (SEQ_gen_type)0; type < SEQ_gen_max; ++type) { - CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value)); - CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value + (value >> 2))); - } - } - /* Test offset values up to the max window log */ - for (value = 8; value <= kMaxWindowLog; ++value) { - CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, SEQ_gen_of, (1U << value) - 1)); - } - - CHECK_Z(SEQ_roundTrip(zc, zd, &xxh, NULL, 0, ZSTD_e_end)); - CHECK(SEQ_digest(&seq) != XXH64_digest(&xxh), "SEQ XXH64 does not match"); - - ZSTD_freeCDict(cdict); - ZSTD_freeDDict(ddict); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_srcSize sets requestedParams : ", testNb++); - { int level; - CHECK_Z(ZSTD_initCStream_srcSize(zc, 11, ZSTD_CONTENTSIZE_UNKNOWN)); - CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_compressionLevel, &level)); - CHECK(level != 11, "Compression level does not match"); - ZSTD_resetCStream(zc, ZSTD_CONTENTSIZE_UNKNOWN); - CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_compressionLevel, &level)); - CHECK(level != 11, "Compression level does not match"); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_advanced sets requestedParams : ", testNb++); - { ZSTD_parameters const params = ZSTD_getParams(9, 0, 0); - CHECK_Z(ZSTD_initCStream_advanced(zc, NULL, 0, params, ZSTD_CONTENTSIZE_UNKNOWN)); - CHECK(badParameters(zc, params), "Compression parameters do not match"); - ZSTD_resetCStream(zc, ZSTD_CONTENTSIZE_UNKNOWN); - CHECK(badParameters(zc, params), "Compression parameters do not match"); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : ZSTD_c_srcSizeHint bounds : ", testNb++); - ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters); - CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_srcSizeHint, INT_MAX)); - { int srcSizeHint; - CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_srcSizeHint, &srcSizeHint)); - CHECK(!(srcSizeHint == INT_MAX), "srcSizeHint doesn't match"); - } - CHECK(!ZSTD_isError(ZSTD_CCtx_setParameter(zc, ZSTD_c_srcSizeHint, -1)), "Out of range doesn't error"); - DISPLAYLEVEL(3, "OK \n"); - - /* Overlen overwriting window data bug */ - DISPLAYLEVEL(3, "test%3i : wildcopy doesn't overwrite potential match data : ", testNb++); - { /* This test has a window size of 1024 bytes and consists of 3 blocks: - 1. 'a' repeated 517 times - 2. 'b' repeated 516 times - 3. a compressed block with no literals and 3 sequence commands: - litlength = 0, offset = 24, match length = 24 - litlength = 0, offset = 24, match length = 3 (this one creates an overlength write of length 2*WILDCOPY_OVERLENGTH - 3) - litlength = 0, offset = 1021, match length = 3 (this one will try to read from overwritten data if the buffer is too small) */ - - const char* testCase = - "\x28\xB5\x2F\xFD\x04\x00\x4C\x00\x00\x10\x61\x61\x01\x00\x00\x2A" - "\x80\x05\x44\x00\x00\x08\x62\x01\x00\x00\x2A\x20\x04\x5D\x00\x00" - "\x00\x03\x40\x00\x00\x64\x60\x27\xB0\xE0\x0C\x67\x62\xCE\xE0"; - ZSTD_DStream* const zds = ZSTD_createDStream(); - if (zds==NULL) goto _output_error; - - CHECK_Z( ZSTD_initDStream(zds) ); - inBuff.src = testCase; - inBuff.size = 47; - inBuff.pos = 0; - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - - while (inBuff.pos < inBuff.size) { - CHECK_Z( ZSTD_decompressStream(zds, &outBuff, &inBuff) ); - } - - ZSTD_freeDStream(zds); - } - DISPLAYLEVEL(3, "OK \n"); - - /* Small Sequence Section bug */ - DISPLAYLEVEL(3, "test%3i : decompress blocks with small sequences section : ", testNb++); - { /* This test consists of 3 blocks. Each block has one sequence. - The sequence has literal length of 10, match length of 10 and offset of 10. - The sequence value and compression mode for the blocks are following: - The order of values are ll, ml, of. - - First block : (10, 7, 13) (rle, rle, rle) - - size of sequences section: 6 bytes (1 byte for nbSeq, 1 byte for encoding mode, 3 bytes for rle, 1 byte bitstream) - - Second block : (10, 7, 1) (repeat, repeat, rle) - - size of sequences section: 4 bytes (1 byte for nbSeq, 1 byte for encoding mode, 1 bytes for rle, 1 byte bitstream) - - Third block : (10, 7, 1) (repeat, repeat, repeat) - - size of sequences section: 3 bytes (1 byte for nbSeq, 1 byte for encoding mode, 1 byte bitstream) */ - - unsigned char compressed[] = { - 0x28, 0xb5, 0x2f, 0xfd, 0x24, 0x3c, 0x35, 0x01, 0x00, 0xf0, 0x85, 0x08, - 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x4c, 0x6b, 0xa9, 0x8b, - 0xbc, 0xc5, 0xb6, 0xd9, 0x7f, 0x4c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, - 0x69, 0x94, 0x89, 0x1c, 0x03, 0x44, 0x0a, 0x07, 0x00, 0xb4, 0x04, 0x80, - 0x40, 0x0a, 0xa4 - }; - unsigned int compressedSize = 51; - unsigned char decompressed[] = { - 0x85, 0x08, 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x85, 0x08, - 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x4c, 0x6b, 0xa9, 0x8b, - 0xbc, 0xc5, 0xb6, 0xd9, 0x7f, 0x4c, 0x4c, 0x6b, 0xa9, 0x8b, 0xbc, 0xc5, - 0xb6, 0xd9, 0x7f, 0x4c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, 0x69, 0x94, - 0x89, 0x1c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, 0x69, 0x94, 0x89, 0x1c - }; - unsigned int decompressedSize = 60; - - ZSTD_DStream* const zds = ZSTD_createDStream(); - if (zds==NULL) goto _output_error; - - CHECK_Z( ZSTD_initDStream(zds) ); - inBuff.src = compressed; - inBuff.size = compressedSize; - inBuff.pos = 0; - outBuff.dst = decodedBuffer; - outBuff.size = CNBufferSize; - outBuff.pos = 0; - - CHECK(ZSTD_decompressStream(zds, &outBuff, &inBuff) != 0, - "Decompress did not reach the end of frame"); - CHECK(inBuff.pos != inBuff.size, "Decompress did not fully consume input"); - CHECK(outBuff.pos != decompressedSize, "Decompressed size does not match"); - CHECK(memcmp(outBuff.dst, decompressed, decompressedSize) != 0, - "Decompressed data does not match"); - - ZSTD_freeDStream(zds); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : dictionary + uncompressible block + reusing tables checks offset table validity: ", testNb++); - { ZSTD_CDict* const cdict = ZSTD_createCDict_advanced( - dictionary.start, dictionary.filled, - ZSTD_dlm_byRef, ZSTD_dct_fullDict, - ZSTD_getCParams(3, 0, dictionary.filled), - ZSTD_defaultCMem); - const size_t inbufsize = 2 * 128 * 1024; /* 2 blocks */ - const size_t outbufsize = ZSTD_compressBound(inbufsize); - size_t inbufpos = 0; - size_t cursegmentlen; - BYTE *inbuf = (BYTE *)malloc(inbufsize); - BYTE *outbuf = (BYTE *)malloc(outbufsize); - BYTE *checkbuf = (BYTE *)malloc(inbufsize); - size_t ret; - - CHECK(cdict == NULL, "failed to alloc cdict"); - CHECK(inbuf == NULL, "failed to alloc input buffer"); - - /* first block is uncompressible */ - cursegmentlen = 128 * 1024; - RDG_genBuffer(inbuf + inbufpos, cursegmentlen, 0., 0., seed); - inbufpos += cursegmentlen; - - /* second block is compressible */ - cursegmentlen = 128 * 1024 - 256; - RDG_genBuffer(inbuf + inbufpos, cursegmentlen, 0.05, 0., seed); - inbufpos += cursegmentlen; - - /* and includes a very long backref */ - cursegmentlen = 128; - memcpy(inbuf + inbufpos, dictionary.start + 256, cursegmentlen); - inbufpos += cursegmentlen; - - /* and includes a very long backref */ - cursegmentlen = 128; - memcpy(inbuf + inbufpos, dictionary.start + 128, cursegmentlen); - inbufpos += cursegmentlen; - - ret = ZSTD_compress_usingCDict(zc, outbuf, outbufsize, inbuf, inbufpos, cdict); - CHECK_Z(ret); - - ret = ZSTD_decompress_usingDict(zd, checkbuf, inbufsize, outbuf, ret, dictionary.start, dictionary.filled); - CHECK_Z(ret); - - CHECK(memcmp(inbuf, checkbuf, inbufpos), "start and finish buffers don't match"); - - ZSTD_freeCDict(cdict); - free(inbuf); - free(outbuf); - free(checkbuf); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : dictionary + small blocks + reusing tables checks offset table validity: ", testNb++); - { ZSTD_CDict* const cdict = ZSTD_createCDict_advanced( - dictionary.start, dictionary.filled, - ZSTD_dlm_byRef, ZSTD_dct_fullDict, - ZSTD_getCParams(3, 0, dictionary.filled), - ZSTD_defaultCMem); - ZSTD_outBuffer out = {compressedBuffer, compressedBufferSize, 0}; - int remainingInput = 256 * 1024; - int offset; - - CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); - CHECK_Z(ZSTD_CCtx_refCDict(zc, cdict)); - CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_checksumFlag, 1)); - /* Write a bunch of 6 byte blocks */ - while (remainingInput > 0) { - char testBuffer[6] = "\xAA\xAA\xAA\xAA\xAA\xAA"; - const size_t kSmallBlockSize = sizeof(testBuffer); - ZSTD_inBuffer in = {testBuffer, kSmallBlockSize, 0}; - - CHECK_Z(ZSTD_compressStream2(zc, &out, &in, ZSTD_e_flush)); - CHECK(in.pos != in.size, "input not fully consumed"); - remainingInput -= kSmallBlockSize; - } - /* Write several very long offset matches into the dictionary */ - for (offset = 1024; offset >= 0; offset -= 128) { - ZSTD_inBuffer in = {dictionary.start + offset, 128, 0}; - ZSTD_EndDirective flush = offset > 0 ? ZSTD_e_continue : ZSTD_e_end; - CHECK_Z(ZSTD_compressStream2(zc, &out, &in, flush)); - CHECK(in.pos != in.size, "input not fully consumed"); - } - /* Ensure decompression works */ - CHECK_Z(ZSTD_decompress_usingDict(zd, decodedBuffer, CNBufferSize, out.dst, out.pos, dictionary.start, dictionary.filled)); - - ZSTD_freeCDict(cdict); - } - DISPLAYLEVEL(3, "OK \n"); - -_end: - FUZ_freeDictionary(dictionary); - ZSTD_freeCStream(zc); - ZSTD_freeDStream(zd); - ZSTDMT_freeCCtx(mtctx); - free(CNBuffer); - free(compressedBuffer); - free(decodedBuffer); - return testResult; - -_output_error: - testResult = 1; - DISPLAY("Error detected in Unit tests ! \n"); - goto _end; -} - - -/* ====== Fuzzer tests ====== */ - -static size_t findDiff(const void* buf1, const void* buf2, size_t max) -{ - const BYTE* b1 = (const BYTE*)buf1; - const BYTE* b2 = (const BYTE*)buf2; - size_t u; - for (u=0; u<max; u++) { - if (b1[u] != b2[u]) break; - } - if (u==max) { - DISPLAY("=> No difference detected within %u bytes \n", (unsigned)max); - return u; - } - DISPLAY("Error at position %u / %u \n", (unsigned)u, (unsigned)max); - if (u>=3) - DISPLAY(" %02X %02X %02X ", - b1[u-3], b1[u-2], b1[u-1]); - DISPLAY(" :%02X: %02X %02X %02X %02X %02X \n", - b1[u], b1[u+1], b1[u+2], b1[u+3], b1[u+4], b1[u+5]); - if (u>=3) - DISPLAY(" %02X %02X %02X ", - b2[u-3], b2[u-2], b2[u-1]); - DISPLAY(" :%02X: %02X %02X %02X %02X %02X \n", - b2[u], b2[u+1], b2[u+2], b2[u+3], b2[u+4], b2[u+5]); - return u; -} - -static size_t FUZ_rLogLength(U32* seed, U32 logLength) -{ - size_t const lengthMask = ((size_t)1 << logLength) - 1; - return (lengthMask+1) + (FUZ_rand(seed) & lengthMask); -} - -static size_t FUZ_randomLength(U32* seed, U32 maxLog) -{ - U32 const logLength = FUZ_rand(seed) % maxLog; - return FUZ_rLogLength(seed, logLength); -} - -/* Return value in range minVal <= v <= maxVal */ -static U32 FUZ_randomClampedLength(U32* seed, U32 minVal, U32 maxVal) -{ - U32 const mod = maxVal < minVal ? 1 : (maxVal + 1) - minVal; - return (U32)((FUZ_rand(seed) % mod) + minVal); -} - -static int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressibility, int bigTests) -{ - U32 const maxSrcLog = bigTests ? 24 : 22; - static const U32 maxSampleLog = 19; - size_t const srcBufferSize = (size_t)1<<maxSrcLog; - BYTE* cNoiseBuffer[5]; - size_t const copyBufferSize = srcBufferSize + (1<<maxSampleLog); - BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize); - size_t const cBufferSize = ZSTD_compressBound(srcBufferSize); - BYTE* const cBuffer = (BYTE*)malloc (cBufferSize); - size_t const dstBufferSize = srcBufferSize; - BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize); - U32 result = 0; - unsigned testNb = 0; - U32 coreSeed = seed; - ZSTD_CStream* zc = ZSTD_createCStream(); /* will be re-created sometimes */ - ZSTD_DStream* zd = ZSTD_createDStream(); /* will be re-created sometimes */ - ZSTD_DStream* const zd_noise = ZSTD_createDStream(); - UTIL_time_t const startClock = UTIL_getTime(); - const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */ - size_t dictSize = 0; - U32 oldTestLog = 0; - U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel() : g_cLevelMax_smallTests; - - /* allocations */ - cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize); - CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] || - !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise , - "Not enough memory, fuzzer tests cancelled"); - - /* Create initial samples */ - RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */ - RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */ - RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed); - RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */ - RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */ - memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */ - ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */ - - /* catch up testNb */ - for (testNb=1; testNb < startTest; testNb++) - FUZ_rand(&coreSeed); - - /* test loop */ - for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) { - U32 lseed; - const BYTE* srcBuffer; - size_t totalTestSize, totalGenSize, cSize; - XXH64_state_t xxhState; - U64 crcOrig; - U32 resetAllowed = 1; - size_t maxTestSize; - - /* init */ - FUZ_rand(&coreSeed); - lseed = coreSeed ^ prime32; - if (nbTests >= testNb) { - DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); - } else { - DISPLAYUPDATE(2, "\r%6u ", testNb); - } - - /* states full reset (deliberately not synchronized) */ - /* some issues can only happen when reusing states */ - if ((FUZ_rand(&lseed) & 0xFF) == 131) { - ZSTD_freeCStream(zc); - zc = ZSTD_createCStream(); - CHECK(zc==NULL, "ZSTD_createCStream : allocation error"); - resetAllowed=0; - } - if ((FUZ_rand(&lseed) & 0xFF) == 132) { - ZSTD_freeDStream(zd); - zd = ZSTD_createDStream(); - CHECK(zd==NULL, "ZSTD_createDStream : allocation error"); - CHECK_Z( ZSTD_initDStream_usingDict(zd, NULL, 0) ); /* ensure at least one init */ - } - - /* srcBuffer selection [0-4] */ - { U32 buffNb = FUZ_rand(&lseed) & 0x7F; - if (buffNb & 7) buffNb=2; /* most common : compressible (P) */ - else { - buffNb >>= 3; - if (buffNb & 7) { - const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */ - buffNb = tnb[buffNb >> 3]; - } else { - const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */ - buffNb = tnb[buffNb >> 3]; - } } - srcBuffer = cNoiseBuffer[buffNb]; - } - - /* compression init */ - if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */ - && oldTestLog /* at least one test happened */ && resetAllowed) { - maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2); - maxTestSize = MIN(maxTestSize, srcBufferSize-16); - { U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? 0 : maxTestSize; - CHECK_Z( ZSTD_resetCStream(zc, pledgedSrcSize) ); - } - } else { - U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; - U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog; - U32 const cLevelCandidate = ( FUZ_rand(&lseed) % - (ZSTD_maxCLevel() - - (MAX(testLog, dictLog) / 3))) - + 1; - U32 const cLevel = MIN(cLevelCandidate, cLevelMax); - maxTestSize = FUZ_rLogLength(&lseed, testLog); - oldTestLog = testLog; - /* random dictionary selection */ - dictSize = ((FUZ_rand(&lseed)&7)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0; - { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); - dict = srcBuffer + dictStart; - } - { U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize; - ZSTD_parameters params = ZSTD_getParams(cLevel, pledgedSrcSize, dictSize); - params.fParams.checksumFlag = FUZ_rand(&lseed) & 1; - params.fParams.noDictIDFlag = FUZ_rand(&lseed) & 1; - params.fParams.contentSizeFlag = FUZ_rand(&lseed) & 1; - CHECK_Z ( ZSTD_initCStream_advanced(zc, dict, dictSize, params, pledgedSrcSize) ); - } } - - /* multi-segments compression test */ - XXH64_reset(&xxhState, 0); - { ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ; - U32 n; - for (n=0, cSize=0, totalTestSize=0 ; totalTestSize < maxTestSize ; n++) { - /* compress random chunks into randomly sized dst buffers */ - { size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const srcSize = MIN(maxTestSize-totalTestSize, randomSrcSize); - size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); - ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 }; - outBuff.size = outBuff.pos + dstBuffSize; - - CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); - - XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos); - memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos); - totalTestSize += inBuff.pos; - } - - /* random flush operation, to mess around */ - if ((FUZ_rand(&lseed) & 15) == 0) { - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); - outBuff.size = outBuff.pos + adjustedDstSize; - CHECK_Z( ZSTD_flushStream(zc, &outBuff) ); - } } - - /* final frame epilogue */ - { size_t remainingToFlush = (size_t)(-1); - while (remainingToFlush) { - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); - outBuff.size = outBuff.pos + adjustedDstSize; - remainingToFlush = ZSTD_endStream(zc, &outBuff); - CHECK (ZSTD_isError(remainingToFlush), "end error : %s", ZSTD_getErrorName(remainingToFlush)); - } } - crcOrig = XXH64_digest(&xxhState); - cSize = outBuff.pos; - } - - /* multi - fragments decompression test */ - if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) { - CHECK_Z ( ZSTD_resetDStream(zd) ); - } else { - CHECK_Z ( ZSTD_initDStream_usingDict(zd, dict, dictSize) ); - } - { size_t decompressionResult = 1; - ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; - ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; - for (totalGenSize = 0 ; decompressionResult ; ) { - size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); - inBuff.size = inBuff.pos + readCSrcSize; - outBuff.size = outBuff.pos + dstBuffSize; - decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_getErrorCode(decompressionResult) == ZSTD_error_checksum_wrong) { - DISPLAY("checksum error : \n"); - findDiff(copyBuffer, dstBuffer, totalTestSize); - } - CHECK( ZSTD_isError(decompressionResult), "decompression error : %s", - ZSTD_getErrorName(decompressionResult) ); - } - CHECK (decompressionResult != 0, "frame not fully decoded"); - CHECK (outBuff.pos != totalTestSize, "decompressed data : wrong size (%u != %u)", - (unsigned)outBuff.pos, (unsigned)totalTestSize); - CHECK (inBuff.pos != cSize, "compressed data should be fully read") - { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); - if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize); - CHECK (crcDest!=crcOrig, "decompressed data corrupted"); - } } - - /*===== noisy/erroneous src decompression test =====*/ - - /* add some noise */ - { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2; - U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) { - size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const noiseSize = MIN((cSize/3) , randomNoiseSize); - size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize); - size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize); - memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize); - } } - - /* try decompression on noisy data */ - CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */ - { ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; - ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; - while (outBuff.pos < dstBufferSize) { - size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize); - size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize); - outBuff.size = outBuff.pos + adjustedDstSize; - inBuff.size = inBuff.pos + adjustedCSrcSize; - { size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(decompressError)) break; /* error correctly detected */ - /* No forward progress possible */ - if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break; - } } } } - DISPLAY("\r%u fuzzer tests completed \n", testNb); - -_cleanup: - ZSTD_freeCStream(zc); - ZSTD_freeDStream(zd); - ZSTD_freeDStream(zd_noise); - free(cNoiseBuffer[0]); - free(cNoiseBuffer[1]); - free(cNoiseBuffer[2]); - free(cNoiseBuffer[3]); - free(cNoiseBuffer[4]); - free(copyBuffer); - free(cBuffer); - free(dstBuffer); - return result; - -_output_error: - result = 1; - goto _cleanup; -} - - -/* fuzzing ZSTDMT_* interface */ -static int fuzzerTests_MT(U32 seed, int nbTests, int startTest, - double compressibility, int bigTests) -{ - const U32 maxSrcLog = bigTests ? 24 : 22; - static const U32 maxSampleLog = 19; - size_t const srcBufferSize = (size_t)1<<maxSrcLog; - BYTE* cNoiseBuffer[5]; - size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog); - BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize); - size_t const cBufferSize = ZSTD_compressBound(srcBufferSize); - BYTE* const cBuffer = (BYTE*)malloc (cBufferSize); - size_t const dstBufferSize = srcBufferSize; - BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize); - U32 result = 0; - int testNb = 0; - U32 coreSeed = seed; - int nbThreads = 2; - ZSTDMT_CCtx* zc = ZSTDMT_createCCtx(nbThreads); /* will be reset sometimes */ - ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */ - ZSTD_DStream* const zd_noise = ZSTD_createDStream(); - UTIL_time_t const startClock = UTIL_getTime(); - const BYTE* dict=NULL; /* can keep same dict on 2 consecutive tests */ - size_t dictSize = 0; - int const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel()-1 : g_cLevelMax_smallTests; - U32 const nbThreadsMax = bigTests ? 4 : 2; - - /* allocations */ - cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize); - CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] || - !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise , - "Not enough memory, fuzzer tests cancelled"); - - /* Create initial samples */ - RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */ - RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */ - RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed); - RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */ - RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */ - memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */ - ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */ - DISPLAYLEVEL(6, "Creating initial context with %i threads \n", nbThreads); - - /* catch up testNb */ - for (testNb=1; testNb < startTest; testNb++) - FUZ_rand(&coreSeed); - - /* test loop */ - for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) { - U32 lseed; - const BYTE* srcBuffer; - size_t totalTestSize, totalGenSize, cSize; - XXH64_state_t xxhState; - U64 crcOrig; - size_t maxTestSize; - - FUZ_rand(&coreSeed); - if (nbTests >= testNb) { - DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); - } else { - DISPLAYUPDATE(2, "\r%6u ", testNb); - } - lseed = coreSeed ^ prime32; - - /* states full reset (deliberately not synchronized) */ - /* some issues can only happen when reusing states */ - if ((FUZ_rand(&lseed) & 0xFF) == 131) { - nbThreads = (FUZ_rand(&lseed) % nbThreadsMax) + 1; - DISPLAYLEVEL(5, "Creating new context with %u threads \n", nbThreads); - ZSTDMT_freeCCtx(zc); - zc = ZSTDMT_createCCtx(nbThreads); - CHECK(zc==NULL, "ZSTDMT_createCCtx allocation error") - } - if ((FUZ_rand(&lseed) & 0xFF) == 132) { - ZSTD_freeDStream(zd); - zd = ZSTD_createDStream(); - CHECK(zd==NULL, "ZSTDMT_createCCtx allocation error") - ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */ - } - - /* srcBuffer selection [0-4] */ - { U32 buffNb = FUZ_rand(&lseed) & 0x7F; - if (buffNb & 7) buffNb=2; /* most common : compressible (P) */ - else { - buffNb >>= 3; - if (buffNb & 7) { - const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */ - buffNb = tnb[buffNb >> 3]; - } else { - const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */ - buffNb = tnb[buffNb >> 3]; - } } - srcBuffer = cNoiseBuffer[buffNb]; - } - - /* compression init */ - { U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; - U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog; - int const cLevelCandidate = ( FUZ_rand(&lseed) - % (ZSTD_maxCLevel() - (MAX(testLog, dictLog) / 2)) ) - + 1; - int const cLevelThreadAdjusted = cLevelCandidate - (nbThreads * 2) + 2; /* reduce cLevel when multiple threads to reduce memory consumption */ - int const cLevelMin = MAX(cLevelThreadAdjusted, 1); /* no negative cLevel yet */ - int const cLevel = MIN(cLevelMin, cLevelMax); - maxTestSize = FUZ_rLogLength(&lseed, testLog); - - if (FUZ_rand(&lseed)&1) { /* simple init */ - int const compressionLevel = (FUZ_rand(&lseed) % 5) + 1; - DISPLAYLEVEL(5, "Init with compression level = %i \n", compressionLevel); - CHECK_Z( ZSTDMT_initCStream(zc, compressionLevel) ); - } else { /* advanced init */ - /* random dictionary selection */ - dictSize = ((FUZ_rand(&lseed)&63)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0; - { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); - dict = srcBuffer + dictStart; - } - { U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize; - ZSTD_parameters params = ZSTD_getParams(cLevel, pledgedSrcSize, dictSize); - DISPLAYLEVEL(5, "Init with windowLog = %u, pledgedSrcSize = %u, dictSize = %u \n", - params.cParams.windowLog, (unsigned)pledgedSrcSize, (unsigned)dictSize); - params.fParams.checksumFlag = FUZ_rand(&lseed) & 1; - params.fParams.noDictIDFlag = FUZ_rand(&lseed) & 1; - params.fParams.contentSizeFlag = FUZ_rand(&lseed) & 1; - DISPLAYLEVEL(5, "checksumFlag : %u \n", params.fParams.checksumFlag); - CHECK_Z( ZSTDMT_setMTCtxParameter(zc, ZSTDMT_p_overlapLog, FUZ_rand(&lseed) % 12) ); - CHECK_Z( ZSTDMT_setMTCtxParameter(zc, ZSTDMT_p_jobSize, FUZ_rand(&lseed) % (2*maxTestSize+1)) ); /* custom job size */ - CHECK_Z( ZSTDMT_initCStream_advanced(zc, dict, dictSize, params, pledgedSrcSize) ); - } } } - - /* multi-segments compression test */ - XXH64_reset(&xxhState, 0); - { ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ; - U32 n; - for (n=0, cSize=0, totalTestSize=0 ; totalTestSize < maxTestSize ; n++) { - /* compress random chunks into randomly sized dst buffers */ - { size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const srcSize = MIN (maxTestSize-totalTestSize, randomSrcSize); - size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); - ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 }; - outBuff.size = outBuff.pos + dstBuffSize; - - DISPLAYLEVEL(6, "Sending %u bytes to compress \n", (unsigned)srcSize); - CHECK_Z( ZSTDMT_compressStream(zc, &outBuff, &inBuff) ); - DISPLAYLEVEL(6, "%u bytes read by ZSTDMT_compressStream \n", (unsigned)inBuff.pos); - - XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos); - memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos); - totalTestSize += inBuff.pos; - } - - /* random flush operation, to mess around */ - if ((FUZ_rand(&lseed) & 15) == 0) { - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); - size_t const previousPos = outBuff.pos; - outBuff.size = outBuff.pos + adjustedDstSize; - DISPLAYLEVEL(5, "Flushing into dst buffer of size %u \n", (unsigned)adjustedDstSize); - CHECK_Z( ZSTDMT_flushStream(zc, &outBuff) ); - assert(outBuff.pos >= previousPos); - DISPLAYLEVEL(6, "%u bytes flushed by ZSTDMT_flushStream \n", (unsigned)(outBuff.pos-previousPos)); - } } - - /* final frame epilogue */ - { size_t remainingToFlush = (size_t)(-1); - while (remainingToFlush) { - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); - size_t const previousPos = outBuff.pos; - outBuff.size = outBuff.pos + adjustedDstSize; - DISPLAYLEVEL(5, "Ending into dst buffer of size %u \n", (unsigned)adjustedDstSize); - remainingToFlush = ZSTDMT_endStream(zc, &outBuff); - CHECK (ZSTD_isError(remainingToFlush), "ZSTDMT_endStream error : %s", ZSTD_getErrorName(remainingToFlush)); - assert(outBuff.pos >= previousPos); - DISPLAYLEVEL(6, "%u bytes flushed by ZSTDMT_endStream \n", (unsigned)(outBuff.pos-previousPos)); - DISPLAYLEVEL(5, "endStream : remainingToFlush : %u \n", (unsigned)remainingToFlush); - } } - crcOrig = XXH64_digest(&xxhState); - cSize = outBuff.pos; - DISPLAYLEVEL(5, "Frame completed : %u bytes compressed into %u bytes \n", - (unsigned)totalTestSize, (unsigned)cSize); - } - - /* multi - fragments decompression test */ - assert(totalTestSize < dstBufferSize); - memset(dstBuffer, 170, totalTestSize); /* init dest area */ - if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) { - CHECK_Z( ZSTD_resetDStream(zd) ); - } else { - CHECK_Z( ZSTD_initDStream_usingDict(zd, dict, dictSize) ); - } - { size_t decompressionResult = 1; - ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; - ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; - for (totalGenSize = 0 ; decompressionResult ; ) { - size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); - inBuff.size = inBuff.pos + readCSrcSize; - outBuff.size = outBuff.pos + dstBuffSize; - DISPLAYLEVEL(6, "ZSTD_decompressStream input %u bytes into outBuff %u bytes \n", - (unsigned)readCSrcSize, (unsigned)dstBuffSize); - decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(decompressionResult)) { - DISPLAY("ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(decompressionResult)); - findDiff(copyBuffer, dstBuffer, totalTestSize); - } - CHECK (ZSTD_isError(decompressionResult), "decompression error : %s", ZSTD_getErrorName(decompressionResult)); - DISPLAYLEVEL(6, "total ingested (inBuff.pos) = %u and produced (outBuff.pos) = %u \n", - (unsigned)inBuff.pos, (unsigned)outBuff.pos); - } - CHECK (outBuff.pos != totalTestSize, - "decompressed data : wrong size (%u != %u)", - (unsigned)outBuff.pos, (unsigned)totalTestSize ); - CHECK (inBuff.pos != cSize, - "compressed data should be fully read (%u != %u)", - (unsigned)inBuff.pos, (unsigned)cSize ); - { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); - if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize); - CHECK (crcDest!=crcOrig, "decompressed data corrupted"); - } } - - /*===== noisy/erroneous src decompression test =====*/ - - /* add some noise */ - { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2; - U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) { - size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const noiseSize = MIN((cSize/3) , randomNoiseSize); - size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize); - size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize); - memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize); - } } - - /* try decompression on noisy data */ - CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */ - { ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; - ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; - while (outBuff.pos < dstBufferSize) { - size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize); - size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize); - outBuff.size = outBuff.pos + adjustedDstSize; - inBuff.size = inBuff.pos + adjustedCSrcSize; - { size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(decompressError)) break; /* error correctly detected */ - /* No forward progress possible */ - if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break; - } } } } - DISPLAY("\r%u fuzzer tests completed \n", testNb); - -_cleanup: - ZSTDMT_freeCCtx(zc); - ZSTD_freeDStream(zd); - ZSTD_freeDStream(zd_noise); - free(cNoiseBuffer[0]); - free(cNoiseBuffer[1]); - free(cNoiseBuffer[2]); - free(cNoiseBuffer[3]); - free(cNoiseBuffer[4]); - free(copyBuffer); - free(cBuffer); - free(dstBuffer); - return result; - -_output_error: - result = 1; - goto _cleanup; -} - -/** If useOpaqueAPI, sets param in cctxParams. - * Otherwise, sets the param in zc. */ -static size_t setCCtxParameter(ZSTD_CCtx* zc, ZSTD_CCtx_params* cctxParams, - ZSTD_cParameter param, unsigned value, - int useOpaqueAPI) -{ - if (useOpaqueAPI) { - return ZSTD_CCtxParams_setParameter(cctxParams, param, value); - } else { - return ZSTD_CCtx_setParameter(zc, param, value); - } -} - -/* Tests for ZSTD_compress_generic() API */ -static int fuzzerTests_newAPI(U32 seed, int nbTests, int startTest, - double compressibility, int bigTests) -{ - U32 const maxSrcLog = bigTests ? 24 : 22; - static const U32 maxSampleLog = 19; - size_t const srcBufferSize = (size_t)1<<maxSrcLog; - BYTE* cNoiseBuffer[5]; - size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog); - BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize); - size_t const cBufferSize = ZSTD_compressBound(srcBufferSize); - BYTE* const cBuffer = (BYTE*)malloc (cBufferSize); - size_t const dstBufferSize = srcBufferSize; - BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize); - U32 result = 0; - int testNb = 0; - U32 coreSeed = seed; - ZSTD_CCtx* zc = ZSTD_createCCtx(); /* will be reset sometimes */ - ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */ - ZSTD_DStream* const zd_noise = ZSTD_createDStream(); - UTIL_time_t const startClock = UTIL_getTime(); - const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */ - size_t dictSize = 0; - U32 oldTestLog = 0; - U32 windowLogMalus = 0; /* can survive between 2 loops */ - U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel()-1 : g_cLevelMax_smallTests; - U32 const nbThreadsMax = bigTests ? 4 : 2; - ZSTD_CCtx_params* cctxParams = ZSTD_createCCtxParams(); - - /* allocations */ - cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize); - cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize); - CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] || - !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise , - "Not enough memory, fuzzer tests cancelled"); - - /* Create initial samples */ - RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */ - RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */ - RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed); - RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */ - RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */ - memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */ - CHECK_Z( ZSTD_initDStream_usingDict(zd, NULL, 0) ); /* ensure at least one init */ - - /* catch up testNb */ - for (testNb=1; testNb < startTest; testNb++) - FUZ_rand(&coreSeed); - - /* test loop */ - for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) { - U32 lseed; - int opaqueAPI; - const BYTE* srcBuffer; - size_t totalTestSize, totalGenSize, cSize; - XXH64_state_t xxhState; - U64 crcOrig; - U32 resetAllowed = 1; - size_t maxTestSize; - ZSTD_parameters savedParams; - - /* init */ - if (nbTests >= testNb) { DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); } - else { DISPLAYUPDATE(2, "\r%6u ", testNb); } - FUZ_rand(&coreSeed); - lseed = coreSeed ^ prime32; - DISPLAYLEVEL(5, " *** Test %u *** \n", testNb); - opaqueAPI = FUZ_rand(&lseed) & 1; - - /* states full reset (deliberately not synchronized) */ - /* some issues can only happen when reusing states */ - if ((FUZ_rand(&lseed) & 0xFF) == 131) { - DISPLAYLEVEL(5, "Creating new context \n"); - ZSTD_freeCCtx(zc); - zc = ZSTD_createCCtx(); - CHECK(zc == NULL, "ZSTD_createCCtx allocation error"); - resetAllowed = 0; - } - if ((FUZ_rand(&lseed) & 0xFF) == 132) { - ZSTD_freeDStream(zd); - zd = ZSTD_createDStream(); - CHECK(zd == NULL, "ZSTD_createDStream allocation error"); - ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */ - } - - /* srcBuffer selection [0-4] */ - { U32 buffNb = FUZ_rand(&lseed) & 0x7F; - if (buffNb & 7) buffNb=2; /* most common : compressible (P) */ - else { - buffNb >>= 3; - if (buffNb & 7) { - const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */ - buffNb = tnb[buffNb >> 3]; - } else { - const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */ - buffNb = tnb[buffNb >> 3]; - } } - srcBuffer = cNoiseBuffer[buffNb]; - } - - /* compression init */ - CHECK_Z( ZSTD_CCtx_loadDictionary(zc, NULL, 0) ); /* cancel previous dict /*/ - if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */ - && oldTestLog /* at least one test happened */ - && resetAllowed) { - /* just set a compression level */ - maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2); - if (maxTestSize >= srcBufferSize) maxTestSize = srcBufferSize-1; - { int const compressionLevel = (FUZ_rand(&lseed) % 5) + 1; - DISPLAYLEVEL(5, "t%u : compression level : %i \n", testNb, compressionLevel); - CHECK_Z (setCCtxParameter(zc, cctxParams, ZSTD_c_compressionLevel, compressionLevel, opaqueAPI) ); - } - } else { - U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; - U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog; - U32 const cLevelCandidate = (FUZ_rand(&lseed) % - (ZSTD_maxCLevel() - - (MAX(testLog, dictLog) / 2))) + - 1; - int const cLevel = MIN(cLevelCandidate, cLevelMax); - DISPLAYLEVEL(5, "t%i: base cLevel : %u \n", testNb, cLevel); - maxTestSize = FUZ_rLogLength(&lseed, testLog); - DISPLAYLEVEL(5, "t%i: maxTestSize : %u \n", testNb, (unsigned)maxTestSize); - oldTestLog = testLog; - /* random dictionary selection */ - dictSize = ((FUZ_rand(&lseed)&63)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0; - { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); - dict = srcBuffer + dictStart; - if (!dictSize) dict=NULL; - } - { U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize; - ZSTD_compressionParameters cParams = ZSTD_getCParams(cLevel, pledgedSrcSize, dictSize); - const U32 windowLogMax = bigTests ? 24 : 20; - const U32 searchLogMax = bigTests ? 15 : 13; - if (dictSize) - DISPLAYLEVEL(5, "t%u: with dictionary of size : %zu \n", testNb, dictSize); - - /* mess with compression parameters */ - cParams.windowLog += (FUZ_rand(&lseed) & 3) - 1; - cParams.windowLog = MIN(windowLogMax, cParams.windowLog); - cParams.hashLog += (FUZ_rand(&lseed) & 3) - 1; - cParams.chainLog += (FUZ_rand(&lseed) & 3) - 1; - cParams.searchLog += (FUZ_rand(&lseed) & 3) - 1; - cParams.searchLog = MIN(searchLogMax, cParams.searchLog); - cParams.minMatch += (FUZ_rand(&lseed) & 3) - 1; - cParams.targetLength = (U32)((cParams.targetLength + 1 ) * (0.5 + ((double)(FUZ_rand(&lseed) & 127) / 128))); - cParams = ZSTD_adjustCParams(cParams, pledgedSrcSize, dictSize); - - if (FUZ_rand(&lseed) & 1) { - DISPLAYLEVEL(5, "t%u: windowLog : %u \n", testNb, cParams.windowLog); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_windowLog, cParams.windowLog, opaqueAPI) ); - assert(cParams.windowLog >= ZSTD_WINDOWLOG_MIN); /* guaranteed by ZSTD_adjustCParams() */ - windowLogMalus = (cParams.windowLog - ZSTD_WINDOWLOG_MIN) / 5; - } - if (FUZ_rand(&lseed) & 1) { - DISPLAYLEVEL(5, "t%u: hashLog : %u \n", testNb, cParams.hashLog); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_hashLog, cParams.hashLog, opaqueAPI) ); - } - if (FUZ_rand(&lseed) & 1) { - DISPLAYLEVEL(5, "t%u: chainLog : %u \n", testNb, cParams.chainLog); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_chainLog, cParams.chainLog, opaqueAPI) ); - } - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_searchLog, cParams.searchLog, opaqueAPI) ); - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_minMatch, cParams.minMatch, opaqueAPI) ); - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_targetLength, cParams.targetLength, opaqueAPI) ); - - /* mess with long distance matching parameters */ - if (bigTests) { - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_enableLongDistanceMatching, FUZ_rand(&lseed) & 63, opaqueAPI) ); - if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmHashLog, FUZ_randomClampedLength(&lseed, ZSTD_HASHLOG_MIN, 23), opaqueAPI) ); - if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmMinMatch, FUZ_randomClampedLength(&lseed, ZSTD_LDM_MINMATCH_MIN, ZSTD_LDM_MINMATCH_MAX), opaqueAPI) ); - if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmBucketSizeLog, FUZ_randomClampedLength(&lseed, ZSTD_LDM_BUCKETSIZELOG_MIN, ZSTD_LDM_BUCKETSIZELOG_MAX), opaqueAPI) ); - if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmHashRateLog, FUZ_randomClampedLength(&lseed, ZSTD_LDM_HASHRATELOG_MIN, ZSTD_LDM_HASHRATELOG_MAX), opaqueAPI) ); - if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_srcSizeHint, FUZ_randomClampedLength(&lseed, ZSTD_SRCSIZEHINT_MIN, ZSTD_SRCSIZEHINT_MAX), opaqueAPI) ); - } - - /* mess with frame parameters */ - if (FUZ_rand(&lseed) & 1) { - int const checksumFlag = FUZ_rand(&lseed) & 1; - DISPLAYLEVEL(5, "t%u: frame checksum : %u \n", testNb, checksumFlag); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_checksumFlag, checksumFlag, opaqueAPI) ); - } - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_dictIDFlag, FUZ_rand(&lseed) & 1, opaqueAPI) ); - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_contentSizeFlag, FUZ_rand(&lseed) & 1, opaqueAPI) ); - if (FUZ_rand(&lseed) & 1) { - DISPLAYLEVEL(5, "t%u: pledgedSrcSize : %u \n", testNb, (unsigned)pledgedSrcSize); - CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) ); - } - - /* multi-threading parameters. Only adjust occasionally for small tests. */ - if (bigTests || (FUZ_rand(&lseed) & 0xF) == 0xF) { - U32 const nbThreadsCandidate = (FUZ_rand(&lseed) & 4) + 1; - U32 const nbThreadsAdjusted = (windowLogMalus < nbThreadsCandidate) ? nbThreadsCandidate - windowLogMalus : 1; - int const nbThreads = MIN(nbThreadsAdjusted, nbThreadsMax); - DISPLAYLEVEL(5, "t%i: nbThreads : %u \n", testNb, nbThreads); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_nbWorkers, nbThreads, opaqueAPI) ); - if (nbThreads > 1) { - U32 const jobLog = FUZ_rand(&lseed) % (testLog+1); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_overlapLog, FUZ_rand(&lseed) % 10, opaqueAPI) ); - CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_jobSize, (U32)FUZ_rLogLength(&lseed, jobLog), opaqueAPI) ); - } - } - /* Enable rsyncable mode 1 in 4 times. */ - setCCtxParameter(zc, cctxParams, ZSTD_c_rsyncable, (FUZ_rand(&lseed) % 4 == 0), opaqueAPI); - - if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_forceMaxWindow, FUZ_rand(&lseed) & 1, opaqueAPI) ); - - /* Apply parameters */ - if (opaqueAPI) { - DISPLAYLEVEL(5, "t%u: applying CCtxParams \n", testNb); - CHECK_Z (ZSTD_CCtx_setParametersUsingCCtxParams(zc, cctxParams) ); - } - - if (FUZ_rand(&lseed) & 1) { - if (FUZ_rand(&lseed) & 1) { - CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dict, dictSize) ); - } else { - CHECK_Z( ZSTD_CCtx_loadDictionary_byReference(zc, dict, dictSize) ); - } - } else { - CHECK_Z( ZSTD_CCtx_refPrefix(zc, dict, dictSize) ); - } - } } - - CHECK_Z(getCCtxParams(zc, &savedParams)); - - /* multi-segments compression test */ - XXH64_reset(&xxhState, 0); - { ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ; - for (cSize=0, totalTestSize=0 ; (totalTestSize < maxTestSize) ; ) { - /* compress random chunks into randomly sized dst buffers */ - size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const srcSize = MIN(maxTestSize-totalTestSize, randomSrcSize); - size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1); - size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); - ZSTD_EndDirective const flush = (FUZ_rand(&lseed) & 15) ? ZSTD_e_continue : ZSTD_e_flush; - ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 }; - outBuff.size = outBuff.pos + dstBuffSize; - - CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, flush) ); - DISPLAYLEVEL(6, "t%u: compress consumed %u bytes (total : %u) ; flush: %u (total : %u) \n", - testNb, (unsigned)inBuff.pos, (unsigned)(totalTestSize + inBuff.pos), (unsigned)flush, (unsigned)outBuff.pos); - - XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos); - memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos); - totalTestSize += inBuff.pos; - } - - /* final frame epilogue */ - { size_t remainingToFlush = 1; - while (remainingToFlush) { - ZSTD_inBuffer inBuff = { NULL, 0, 0 }; - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1); - size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); - outBuff.size = outBuff.pos + adjustedDstSize; - DISPLAYLEVEL(6, "t%u: End-flush into dst buffer of size %u \n", testNb, (unsigned)adjustedDstSize); - remainingToFlush = ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end); - DISPLAYLEVEL(6, "t%u: Total flushed so far : %u bytes \n", testNb, (unsigned)outBuff.pos); - CHECK( ZSTD_isError(remainingToFlush), - "ZSTD_compressStream2 w/ ZSTD_e_end error : %s", - ZSTD_getErrorName(remainingToFlush) ); - } } - crcOrig = XXH64_digest(&xxhState); - cSize = outBuff.pos; - DISPLAYLEVEL(5, "Frame completed : %zu bytes \n", cSize); - } - - CHECK(badParameters(zc, savedParams), "CCtx params are wrong"); - - /* multi - fragments decompression test */ - if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) { - DISPLAYLEVEL(5, "resetting DCtx (dict:%p) \n", dict); - CHECK_Z( ZSTD_resetDStream(zd) ); - } else { - if (dictSize) - DISPLAYLEVEL(5, "using dictionary of size %zu \n", dictSize); - CHECK_Z( ZSTD_initDStream_usingDict(zd, dict, dictSize) ); - } - { size_t decompressionResult = 1; - ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; - ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; - for (totalGenSize = 0 ; decompressionResult ; ) { - size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); - inBuff.size = inBuff.pos + readCSrcSize; - outBuff.size = outBuff.pos + dstBuffSize; - DISPLAYLEVEL(6, "decompression presented %u new bytes (pos:%u/%u)\n", - (unsigned)readCSrcSize, (unsigned)inBuff.pos, (unsigned)cSize); - decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff); - DISPLAYLEVEL(6, "so far: consumed = %u, produced = %u \n", - (unsigned)inBuff.pos, (unsigned)outBuff.pos); - if (ZSTD_isError(decompressionResult)) { - DISPLAY("ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(decompressionResult)); - findDiff(copyBuffer, dstBuffer, totalTestSize); - } - CHECK (ZSTD_isError(decompressionResult), "decompression error : %s", ZSTD_getErrorName(decompressionResult)); - CHECK (inBuff.pos > cSize, "ZSTD_decompressStream consumes too much input : %u > %u ", (unsigned)inBuff.pos, (unsigned)cSize); - } - CHECK (inBuff.pos != cSize, "compressed data should be fully read (%u != %u)", (unsigned)inBuff.pos, (unsigned)cSize); - CHECK (outBuff.pos != totalTestSize, "decompressed data : wrong size (%u != %u)", (unsigned)outBuff.pos, (unsigned)totalTestSize); - { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); - if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize); - CHECK (crcDest!=crcOrig, "decompressed data corrupted"); - } } - - /*===== noisy/erroneous src decompression test =====*/ - - /* add some noise */ - { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2; - U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) { - size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const noiseSize = MIN((cSize/3) , randomNoiseSize); - size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize); - size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize); - memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize); - } } - - /* try decompression on noisy data */ - CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */ - { ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; - ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; - while (outBuff.pos < dstBufferSize) { - size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); - size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize); - size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize); - outBuff.size = outBuff.pos + adjustedDstSize; - inBuff.size = inBuff.pos + adjustedCSrcSize; - { size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff); - if (ZSTD_isError(decompressError)) break; /* error correctly detected */ - /* Good so far, but no more progress possible */ - if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break; - } } } } - DISPLAY("\r%u fuzzer tests completed \n", testNb-1); - -_cleanup: - ZSTD_freeCCtx(zc); - ZSTD_freeDStream(zd); - ZSTD_freeDStream(zd_noise); - ZSTD_freeCCtxParams(cctxParams); - free(cNoiseBuffer[0]); - free(cNoiseBuffer[1]); - free(cNoiseBuffer[2]); - free(cNoiseBuffer[3]); - free(cNoiseBuffer[4]); - free(copyBuffer); - free(cBuffer); - free(dstBuffer); - return result; - -_output_error: - result = 1; - goto _cleanup; -} - -/*-******************************************************* -* Command line -*********************************************************/ -static int FUZ_usage(const char* programName) -{ - DISPLAY( "Usage :\n"); - DISPLAY( " %s [args]\n", programName); - DISPLAY( "\n"); - DISPLAY( "Arguments :\n"); - DISPLAY( " -i# : Nb of tests (default:%u) \n", nbTestsDefault); - DISPLAY( " -s# : Select seed (default:prompt user)\n"); - DISPLAY( " -t# : Select starting test number (default:0)\n"); - DISPLAY( " -P# : Select compressibility in %% (default:%i%%)\n", FUZ_COMPRESSIBILITY_DEFAULT); - DISPLAY( " -v : verbose\n"); - DISPLAY( " -p : pause at the end\n"); - DISPLAY( " -h : display help and exit\n"); - return 0; -} - -typedef enum { simple_api, mt_api, advanced_api } e_api; - -int main(int argc, const char** argv) -{ - U32 seed = 0; - int seedset = 0; - int nbTests = nbTestsDefault; - int testNb = 0; - int proba = FUZ_COMPRESSIBILITY_DEFAULT; - int result = 0; - int mainPause = 0; - int bigTests = (sizeof(size_t) == 8); - e_api selected_api = simple_api; - const char* const programName = argv[0]; - int argNb; - - /* Check command line */ - for(argNb=1; argNb<argc; argNb++) { - const char* argument = argv[argNb]; - assert(argument != NULL); - - /* Parsing commands. Aggregated commands are allowed */ - if (argument[0]=='-') { - - if (!strcmp(argument, "--mt")) { selected_api=mt_api; testNb += !testNb; continue; } - if (!strcmp(argument, "--newapi")) { selected_api=advanced_api; testNb += !testNb; continue; } - if (!strcmp(argument, "--no-big-tests")) { bigTests=0; continue; } - - argument++; - while (*argument!=0) { - switch(*argument) - { - case 'h': - return FUZ_usage(programName); - - case 'v': - argument++; - g_displayLevel++; - break; - - case 'q': - argument++; - g_displayLevel--; - break; - - case 'p': /* pause at the end */ - argument++; - mainPause = 1; - break; - - case 'i': /* limit tests by nb of iterations (default) */ - argument++; - nbTests=0; g_clockTime=0; - while ((*argument>='0') && (*argument<='9')) { - nbTests *= 10; - nbTests += *argument - '0'; - argument++; - } - break; - - case 'T': /* limit tests by time */ - argument++; - nbTests=0; g_clockTime=0; - while ((*argument>='0') && (*argument<='9')) { - g_clockTime *= 10; - g_clockTime += *argument - '0'; - argument++; - } - if (*argument=='m') { /* -T1m == -T60 */ - g_clockTime *=60, argument++; - if (*argument=='n') argument++; /* -T1mn == -T60 */ - } else if (*argument=='s') argument++; /* -T10s == -T10 */ - g_clockTime *= SEC_TO_MICRO; - break; - - case 's': /* manually select seed */ - argument++; - seedset=1; - seed=0; - while ((*argument>='0') && (*argument<='9')) { - seed *= 10; - seed += *argument - '0'; - argument++; - } - break; - - case 't': /* select starting test number */ - argument++; - testNb=0; - while ((*argument>='0') && (*argument<='9')) { - testNb *= 10; - testNb += *argument - '0'; - argument++; - } - break; - - case 'P': /* compressibility % */ - argument++; - proba=0; - while ((*argument>='0') && (*argument<='9')) { - proba *= 10; - proba += *argument - '0'; - argument++; - } - if (proba<0) proba=0; - if (proba>100) proba=100; - break; - - default: - return FUZ_usage(programName); - } - } } } /* for(argNb=1; argNb<argc; argNb++) */ - - /* Get Seed */ - DISPLAY("Starting zstream tester (%i-bits, %s)\n", (int)(sizeof(size_t)*8), ZSTD_VERSION_STRING); - - if (!seedset) { - time_t const t = time(NULL); - U32 const h = XXH32(&t, sizeof(t), 1); - seed = h % 10000; - } - - DISPLAY("Seed = %u\n", (unsigned)seed); - if (proba!=FUZ_COMPRESSIBILITY_DEFAULT) DISPLAY("Compressibility : %i%%\n", proba); - - if (nbTests<=0) nbTests=1; - - if (testNb==0) { - result = basicUnitTests(0, ((double)proba) / 100); /* constant seed for predictability */ - } - - if (!result) { - switch(selected_api) - { - case simple_api : - result = fuzzerTests(seed, nbTests, testNb, ((double)proba) / 100, bigTests); - break; - case mt_api : - result = fuzzerTests_MT(seed, nbTests, testNb, ((double)proba) / 100, bigTests); - break; - case advanced_api : - result = fuzzerTests_newAPI(seed, nbTests, testNb, ((double)proba) / 100, bigTests); - break; - default : - assert(0); /* impossible */ - } - } - - if (mainPause) { - int unused; - DISPLAY("Press Enter \n"); - unused = getchar(); - (void)unused; - } - return result; -} |