| /* |
| * Copyright (c) 2016-2020, 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 "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(); |
| ZSTD_CCtx* mtctx = ZSTD_createCCtx(); |
| |
| 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 || !mtctx) { |
| DISPLAY("Not enough memory, aborting \n"); |
| goto _output_error; |
| } |
| RDG_genBuffer(CNBuffer, CNBufferSize, compressibility, 0., seed); |
| |
| CHECK_Z(ZSTD_CCtx_setParameter(mtctx, ZSTD_c_nbWorkers, 2)); |
| |
| /* 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"); |
| |
| DISPLAYLEVEL(3, "test%3i : NULL buffers : ", testNb++); |
| inBuff.src = NULL; |
| inBuff.size = 0; |
| inBuff.pos = 0; |
| outBuff.dst = NULL; |
| outBuff.size = 0; |
| outBuff.pos = 0; |
| CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| CHECK(inBuff.pos != inBuff.size, "Entire input should be consumed"); |
| CHECK_Z( ZSTD_endStream(zc, &outBuff) ); |
| outBuff.dst = (char*)(compressedBuffer); |
| outBuff.size = compressedBufferSize; |
| outBuff.pos = 0; |
| { size_t const r = ZSTD_endStream(zc, &outBuff); |
| CHECK(r != 0, "Error or some data not flushed (ret=%zu)", r); |
| } |
| inBuff.src = outBuff.dst; |
| inBuff.size = outBuff.pos; |
| inBuff.pos = 0; |
| outBuff.dst = NULL; |
| outBuff.size = 0; |
| outBuff.pos = 0; |
| CHECK_Z( ZSTD_initDStream(zd) ); |
| { size_t const ret = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| if (ret != 0) goto _output_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"); |
| |
| /* Decompression single pass with empty frame */ |
| cSize = ZSTD_compress(compressedBuffer, compressedBufferSize, NULL, 0, 1); |
| CHECK_Z(cSize); |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() single pass on empty frame : ", testNb++); |
| { ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| size_t const dctxSize = ZSTD_sizeof_DCtx(dctx); |
| CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| |
| outBuff.dst = decodedBuffer; |
| outBuff.pos = 0; |
| outBuff.size = CNBufferSize; |
| |
| inBuff.src = compressedBuffer; |
| inBuff.size = cSize; |
| inBuff.pos = 0; |
| { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| CHECK_Z(r); |
| CHECK(r != 0, "Entire frame must be decompressed"); |
| CHECK(outBuff.pos != 0, "Wrong size!"); |
| CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| } |
| CHECK(dctxSize != ZSTD_sizeof_DCtx(dctx), "No buffers allocated"); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* Decompression with ZSTD_d_stableOutBuffer */ |
| cSize = ZSTD_compress(compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize, 1); |
| CHECK_Z(cSize); |
| { ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| size_t const dctxSize0 = ZSTD_sizeof_DCtx(dctx); |
| size_t dctxSize1; |
| CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| |
| outBuff.dst = decodedBuffer; |
| outBuff.pos = 0; |
| outBuff.size = CNBufferSize; |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() single pass : ", testNb++); |
| inBuff.src = compressedBuffer; |
| inBuff.size = cSize; |
| inBuff.pos = 0; |
| { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| CHECK_Z(r); |
| CHECK(r != 0, "Entire frame must be decompressed"); |
| CHECK(outBuff.pos != CNBufferSize, "Wrong size!"); |
| CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| } |
| CHECK(dctxSize0 != ZSTD_sizeof_DCtx(dctx), "No buffers allocated"); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() stable out buffer : ", testNb++); |
| outBuff.pos = 0; |
| inBuff.pos = 0; |
| inBuff.size = 0; |
| while (inBuff.pos < cSize) { |
| inBuff.size += MIN(cSize - inBuff.pos, 1 + (FUZ_rand(&coreSeed) & 15)); |
| CHECK_Z(ZSTD_decompressStream(dctx, &outBuff, &inBuff)); |
| } |
| CHECK(outBuff.pos != CNBufferSize, "Wrong size!"); |
| CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| dctxSize1 = ZSTD_sizeof_DCtx(dctx); |
| CHECK(!(dctxSize0 < dctxSize1), "Input buffer allocated"); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() stable out buffer too small : ", testNb++); |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| inBuff.src = compressedBuffer; |
| inBuff.size = cSize; |
| inBuff.pos = 0; |
| outBuff.pos = 0; |
| outBuff.size = CNBufferSize - 1; |
| { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| CHECK(ZSTD_getErrorCode(r) != ZSTD_error_dstSize_tooSmall, "Must error but got %s", ZSTD_getErrorName(r)); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() stable out buffer modified : ", testNb++); |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| inBuff.src = compressedBuffer; |
| inBuff.size = cSize - 1; |
| inBuff.pos = 0; |
| outBuff.pos = 0; |
| outBuff.size = CNBufferSize; |
| CHECK_Z(ZSTD_decompressStream(dctx, &outBuff, &inBuff)); |
| ++inBuff.size; |
| outBuff.pos = 0; |
| { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| CHECK(ZSTD_getErrorCode(r) != ZSTD_error_dstBuffer_wrong, "Must error but got %s", ZSTD_getErrorName(r)); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() buffered output : ", testNb++); |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 0)); |
| outBuff.pos = 0; |
| inBuff.pos = 0; |
| inBuff.size = 0; |
| while (inBuff.pos < cSize) { |
| inBuff.size += MIN(cSize - inBuff.pos, 1 + (FUZ_rand(&coreSeed) & 15)); |
| CHECK_Z(ZSTD_decompressStream(dctx, &outBuff, &inBuff)); |
| } |
| CHECK(outBuff.pos != CNBufferSize, "Wrong size!"); |
| CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| CHECK(!(dctxSize1 < ZSTD_sizeof_DCtx(dctx)), "Output buffer allocated"); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_freeDCtx(dctx); |
| } |
| |
| /* Compression with ZSTD_c_stable{In,Out}Buffer */ |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| ZSTD_inBuffer in; |
| ZSTD_outBuffer out; |
| size_t cctxSize1; |
| size_t cctxSize2; |
| in.src = CNBuffer; |
| in.size = CNBufferSize; |
| out.dst = compressedBuffer; |
| out.size = compressedBufferSize; |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compress2() uses stable input and output : ", testNb++); |
| CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize)); |
| CHECK(!(cSize < ZSTD_compressBound(CNBufferSize)), "cSize too large for test"); |
| CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, cSize + 4, CNBuffer, CNBufferSize)); |
| CHECK_Z(cctxSize1 = ZSTD_sizeof_CCtx(cctx)); |
| { ZSTD_CCtx* cctx2 = ZSTD_createCCtx(); |
| in.pos = out.pos = 0; |
| CHECK_Z(ZSTD_compressStream2(cctx2, &out, &in, ZSTD_e_continue)); |
| CHECK(!(ZSTD_compressStream2(cctx2, &out, &in, ZSTD_e_end) == 0), "Not finished"); |
| CHECK_Z(cctxSize2 = ZSTD_sizeof_CCtx(cctx2)); |
| ZSTD_freeCCtx(cctx2); |
| } |
| { ZSTD_CCtx* cctx3 = ZSTD_createCCtx(); |
| ZSTD_parameters params = ZSTD_getParams(0, CNBufferSize, 0); |
| size_t cSize3; |
| params.fParams.checksumFlag = 1; |
| cSize3 = ZSTD_compress_advanced(cctx3, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize, NULL, 0, params); |
| CHECK_Z(cSize3); |
| CHECK(!(cSize == cSize3), "Must be same compressed size"); |
| CHECK(!(cctxSize1 == ZSTD_sizeof_CCtx(cctx3)), "Must be same CCtx size"); |
| ZSTD_freeCCtx(cctx3); |
| } |
| CHECK(!(cctxSize1 < cctxSize2), "Stable buffers means less allocated size"); |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compress2() doesn't modify user parameters : ", testNb++); |
| { |
| int stableInBuffer; |
| int stableOutBuffer; |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableInBuffer, &stableInBuffer)); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableOutBuffer, &stableOutBuffer)); |
| CHECK(!(stableInBuffer == 0), "Modified"); |
| CHECK(!(stableOutBuffer == 0), "Modified"); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableOutBuffer, 1)); |
| CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize)); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableInBuffer, &stableInBuffer)); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableOutBuffer, &stableOutBuffer)); |
| CHECK(!(stableInBuffer == 1), "Modified"); |
| CHECK(!(stableOutBuffer == 1), "Modified"); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableInBuffer and ZSTD_c_stableOutBuffer : ", testNb++); |
| CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableOutBuffer, 1)); |
| in.pos = out.pos = 0; |
| CHECK(!(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end) == 0), "Not finished"); |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableInBuffer and ZSTD_c_stableOutBuffer allocated size : ", testNb++); |
| { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| CHECK(!(cctxSize1 == cctxSize), "Must be the same size as single pass"); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableInBuffer only : ", testNb++); |
| CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1)); |
| in.pos = out.pos = 0; |
| out.size = cSize / 4; |
| for (;;) { |
| size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end); |
| CHECK_Z(ret); |
| if (ret == 0) |
| break; |
| out.size = MIN(out.size + cSize / 4, compressedBufferSize); |
| } |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableInBuffer modify buffer : ", testNb++); |
| in.pos = out.pos = 0; |
| out.size = cSize / 4; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| in.src = (char const*)in.src + in.pos; |
| in.size -= in.pos; |
| in.pos = 0; |
| { size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end); |
| CHECK(!ZSTD_isError(ret), "Must error"); |
| CHECK(!(ZSTD_getErrorCode(ret) == ZSTD_error_srcBuffer_wrong), "Must be this error"); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableInBuffer with continue and flush : ", testNb++); |
| in.src = CNBuffer; |
| in.size = CNBufferSize; |
| in.pos = 0; |
| out.pos = 0; |
| out.size = compressedBufferSize; |
| CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only)); |
| { size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue); |
| CHECK(!ZSTD_isError(ret), "Must error"); |
| CHECK(!(ZSTD_getErrorCode(ret) == ZSTD_error_srcBuffer_wrong), "Must be this error"); |
| } |
| CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only)); |
| { size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush); |
| CHECK(!ZSTD_isError(ret), "Must error"); |
| CHECK(!(ZSTD_getErrorCode(ret) == ZSTD_error_srcBuffer_wrong), "Must be this error"); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableInBuffer allocated size : ", testNb++); |
| { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| CHECK(!(cctxSize1 < cctxSize), "Must be bigger than single-pass"); |
| CHECK(!(cctxSize < cctxSize2), "Must be smaller than streaming"); |
| cctxSize1 = cctxSize; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableOutBuffer only : ", testNb++); |
| CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableOutBuffer, 1)); |
| in.pos = out.pos = 0; |
| in.size = MIN(CNBufferSize, 10); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| in.pos = 0; |
| in.size = CNBufferSize - in.size; |
| CHECK(!(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end) == 0), "Not finished"); |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableOutBuffer modify buffer : ", testNb++); |
| in.pos = out.pos = 0; |
| in.size = CNBufferSize; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue)); |
| in.pos = out.pos = 0; |
| { size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue); |
| CHECK(!ZSTD_isError(ret), "Must have errored"); |
| CHECK(!(ZSTD_getErrorCode(ret) == ZSTD_error_dstBuffer_wrong), "Must be this error"); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableOutBuffer allocated size : ", testNb++); |
| { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| CHECK(!(cctxSize1 < cctxSize), "Must be bigger than single-pass and stableInBuffer"); |
| CHECK(!(cctxSize < cctxSize2), "Must be smaller than streaming"); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_freeCCtx(cctx); |
| } |
| |
| /* 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); |
| { int jobSize; |
| CHECK_Z( ZSTD_CCtx_getParameter(mtctx, ZSTD_c_jobSize, &jobSize)); |
| CHECK(jobSize != 0, "job size non-zero"); |
| CHECK_Z( ZSTD_CCtx_getParameter(mtctx, ZSTD_c_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 = ZSTD_compressStream2(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 : raw block can be streamed: ", testNb++); |
| { size_t const inputSize = 10000; |
| size_t const compCapacity = ZSTD_compressBound(inputSize); |
| BYTE* const input = (BYTE*)malloc(inputSize); |
| BYTE* const comp = (BYTE*)malloc(compCapacity); |
| BYTE* const decomp = (BYTE*)malloc(inputSize); |
| |
| CHECK(input == NULL || comp == NULL || decomp == NULL, "failed to alloc buffers"); |
| |
| RDG_genBuffer(input, inputSize, 0.0, 0.0, seed); |
| { size_t const compSize = ZSTD_compress(comp, compCapacity, input, inputSize, -(int)inputSize); |
| ZSTD_inBuffer in = { comp, 0, 0 }; |
| ZSTD_outBuffer out = { decomp, 0, 0 }; |
| CHECK_Z(compSize); |
| CHECK_Z( ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters) ); |
| while (in.size < compSize) { |
| in.size = MIN(in.size + 100, compSize); |
| while (in.pos < in.size) { |
| size_t const outPos = out.pos; |
| if (out.pos == out.size) { |
| out.size = MIN(out.size + 10, inputSize); |
| } |
| CHECK_Z( ZSTD_decompressStream(zd, &out, &in) ); |
| CHECK(!(out.pos > outPos), "We are not streaming (no output generated)"); |
| } |
| } |
| CHECK(in.pos != compSize, "Not all input consumed!"); |
| CHECK(out.pos != inputSize, "Not all output produced!"); |
| } |
| CHECK(memcmp(input, decomp, inputSize), "round trip failed!"); |
| |
| free(input); |
| free(comp); |
| free(decomp); |
| } |
| 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, (BYTE*)dictionary.start + 256, cursegmentlen); |
| inbufpos += cursegmentlen; |
| |
| /* and includes a very long backref */ |
| cursegmentlen = 128; |
| memcpy(inbuf + inbufpos, (BYTE*)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 = {(BYTE*)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); |
| ZSTD_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; |
| } |
| |
| /** 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; |
| int isRefPrefix = 0; |
| U64 pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN; |
| |
| /* 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; |
| } |
| 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) ); |
| } else { |
| pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN; |
| } |
| |
| /* 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. */ |
| { |
| int const rsyncable = (FUZ_rand(&lseed) % 4 == 0); |
| DISPLAYLEVEL(5, "t%u: rsyncable : %d \n", testNb, rsyncable); |
| setCCtxParameter(zc, cctxParams, ZSTD_c_rsyncable, rsyncable, 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 { |
| isRefPrefix = 1; |
| CHECK_Z( ZSTD_CCtx_refPrefix(zc, dict, dictSize) ); |
| } |
| } } |
| |
| CHECK_Z(getCCtxParams(zc, &savedParams)); |
| |
| /* multi-segments compression test */ |
| { int iter; |
| int const startSeed = lseed; |
| XXH64_hash_t compressedCrcs[2]; |
| for (iter = 0; iter < 2; ++iter, lseed = startSeed) { |
| ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ; |
| int const singlePass = (FUZ_rand(&lseed) & 3) == 0; |
| int nbWorkers; |
| |
| XXH64_reset(&xxhState, 0); |
| |
| CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) ); |
| if (isRefPrefix) { |
| DISPLAYLEVEL(6, "t%u: Reloading prefix\n", testNb); |
| /* Need to reload the prefix because it gets dropped after one compression */ |
| CHECK_Z( ZSTD_CCtx_refPrefix(zc, dict, dictSize) ); |
| } |
| |
| /* Adjust number of workers occassionally - result must be deterministic independent of nbWorkers */ |
| CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_nbWorkers, &nbWorkers)); |
| if (nbWorkers > 0 && (FUZ_rand(&lseed) & 7) == 0) { |
| DISPLAYLEVEL(6, "t%u: Modify nbWorkers: %d -> %d \n", testNb, nbWorkers, nbWorkers + iter); |
| CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_nbWorkers, nbWorkers + iter)); |
| } |
| |
| if (singlePass) { |
| ZSTD_inBuffer inBuff = { srcBuffer, maxTestSize, 0 }; |
| CHECK_Z(ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end)); |
| DISPLAYLEVEL(6, "t%u: Single pass compression: consumed %u bytes ; produced %u bytes \n", |
| testNb, (unsigned)inBuff.pos, (unsigned)outBuff.pos); |
| CHECK(inBuff.pos != inBuff.size, "Input not consumed!"); |
| crcOrig = XXH64(srcBuffer, maxTestSize, 0); |
| totalTestSize = maxTestSize; |
| } else { |
| outBuff.size = 0; |
| for (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); |
| ZSTD_EndDirective const flush = (FUZ_rand(&lseed) & 15) ? ZSTD_e_continue : ZSTD_e_flush; |
| ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 }; |
| int forwardProgress; |
| do { |
| size_t const ipos = inBuff.pos; |
| size_t const opos = outBuff.pos; |
| size_t ret; |
| if (outBuff.pos == outBuff.size) { |
| size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1); |
| size_t const dstBuffSize = MIN(cBufferSize - outBuff.pos, randomDstSize); |
| outBuff.size = outBuff.pos + dstBuffSize; |
| } |
| CHECK_Z( ret = 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); |
| |
| /* We've completed the flush */ |
| if (flush == ZSTD_e_flush && ret == 0) |
| break; |
| |
| /* Ensure maximal forward progress for determinism */ |
| forwardProgress = (inBuff.pos != ipos) || (outBuff.pos != opos); |
| } while (forwardProgress); |
| |
| 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 - outBuff.pos, randomDstSize); |
| outBuff.size = outBuff.pos + adjustedDstSize; |
| DISPLAYLEVEL(6, "t%u: End-flush into dst buffer of size %u \n", testNb, (unsigned)adjustedDstSize); |
| /* ZSTD_e_end guarantees maximal forward progress */ |
| 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; |
| compressedCrcs[iter] = XXH64(cBuffer, cSize, 0); |
| DISPLAYLEVEL(5, "Frame completed : %zu bytes \n", cSize); |
| } |
| CHECK(!(compressedCrcs[0] == compressedCrcs[1]), "Compression is not deterministic!"); |
| } |
| |
| 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# : Number of tests (default:%u)\n", nbTestsDefault); |
| DISPLAY( " -T# : Max duration to run for. Overrides number of tests. (e.g. -T1m or -T60s for one minute)\n"); |
| 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, 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, "--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 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; |
| } |