| /* |
| * Copyright (c) 2015-2020, 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 : 4204) /* disable: C4204: non-constant aggregate initializer */ |
| #endif |
| |
| |
| /*-************************************ |
| * Includes |
| **************************************/ |
| #include <stdlib.h> /* free */ |
| #include <stdio.h> /* fgets, sscanf */ |
| #include <string.h> /* strcmp */ |
| #undef NDEBUG |
| #include <assert.h> |
| #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressContinue, ZSTD_compressBlock */ |
| #include "debug.h" /* DEBUG_STATIC_ASSERT */ |
| #include "fse.h" |
| #include "zstd.h" /* ZSTD_VERSION_STRING */ |
| #include "zstd_errors.h" /* ZSTD_getErrorCode */ |
| #define ZDICT_STATIC_LINKING_ONLY |
| #include "zdict.h" /* ZDICT_trainFromBuffer */ |
| #include "mem.h" |
| #include "datagen.h" /* RDG_genBuffer */ |
| #define XXH_STATIC_LINKING_ONLY /* XXH64_state_t */ |
| #include "xxhash.h" /* XXH64 */ |
| #include "util.h" |
| #include "timefn.h" /* SEC_TO_MICRO, UTIL_time_t, UTIL_TIME_INITIALIZER, UTIL_clockSpanMicro, UTIL_getTime */ |
| /* must be included after util.h, due to ERROR macro redefinition issue on Visual Studio */ |
| #include "zstd_internal.h" /* ZSTD_WORKSPACETOOLARGE_MAXDURATION, ZSTD_WORKSPACETOOLARGE_FACTOR, KB, MB */ |
| |
| |
| /*-************************************ |
| * Constants |
| **************************************/ |
| #define GB *(1U<<30) |
| |
| static const int FUZ_compressibility_default = 50; |
| static const int nbTestsDefault = 30000; |
| |
| |
| /*-************************************ |
| * Display Macros |
| **************************************/ |
| #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) |
| #define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } |
| 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); } \ |
| } |
| |
| |
| /*-******************************************************* |
| * Compile time test |
| *********************************************************/ |
| #undef MIN |
| #undef MAX |
| /* Declaring the function, to avoid -Wmissing-prototype */ |
| void FUZ_bug976(void); |
| void FUZ_bug976(void) |
| { /* these constants shall not depend on MIN() macro */ |
| assert(ZSTD_HASHLOG_MAX < 31); |
| assert(ZSTD_CHAINLOG_MAX < 31); |
| } |
| |
| |
| /*-******************************************************* |
| * Internal functions |
| *********************************************************/ |
| #define MIN(a,b) ((a)<(b)?(a):(b)) |
| #define MAX(a,b) ((a)>(b)?(a):(b)) |
| |
| #define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r))) |
| static U32 FUZ_rand(U32* src) |
| { |
| static const U32 prime1 = 2654435761U; |
| static const U32 prime2 = 2246822519U; |
| U32 rand32 = *src; |
| rand32 *= prime1; |
| rand32 += prime2; |
| rand32 = FUZ_rotl32(rand32, 13); |
| *src = rand32; |
| return rand32 >> 5; |
| } |
| |
| static U32 FUZ_highbit32(U32 v32) |
| { |
| unsigned nbBits = 0; |
| if (v32==0) return 0; |
| while (v32) v32 >>= 1, nbBits++; |
| return nbBits; |
| } |
| |
| |
| /*============================================= |
| * Test macros |
| =============================================*/ |
| #define CHECK_Z(f) { \ |
| size_t const err = f; \ |
| if (ZSTD_isError(err)) { \ |
| DISPLAY("Error => %s : %s ", \ |
| #f, ZSTD_getErrorName(err)); \ |
| exit(1); \ |
| } } |
| |
| #define CHECK_VAR(var, fn) var = fn; if (ZSTD_isError(var)) { DISPLAYLEVEL(1, "%s : fails : %s \n", #fn, ZSTD_getErrorName(var)); goto _output_error; } |
| #define CHECK_NEWV(var, fn) size_t const CHECK_VAR(var, fn) |
| #define CHECK(fn) { CHECK_NEWV(err, fn); } |
| #define CHECKPLUS(var, fn, more) { CHECK_NEWV(var, fn); more; } |
| |
| #define CHECK_OP(op, lhs, rhs) { \ |
| if (!((lhs) op (rhs))) { \ |
| DISPLAY("Error L%u => FAILED %s %s %s ", __LINE__, #lhs, #op, #rhs); \ |
| goto _output_error; \ |
| } \ |
| } |
| #define CHECK_EQ(lhs, rhs) CHECK_OP(==, lhs, rhs) |
| #define CHECK_LT(lhs, rhs) CHECK_OP(<, lhs, rhs) |
| |
| |
| /*============================================= |
| * Memory Tests |
| =============================================*/ |
| #if defined(__APPLE__) && defined(__MACH__) |
| |
| #include <malloc/malloc.h> /* malloc_size */ |
| |
| typedef struct { |
| unsigned long long totalMalloc; |
| size_t currentMalloc; |
| size_t peakMalloc; |
| unsigned nbMalloc; |
| unsigned nbFree; |
| } mallocCounter_t; |
| |
| static const mallocCounter_t INIT_MALLOC_COUNTER = { 0, 0, 0, 0, 0 }; |
| |
| static void* FUZ_mallocDebug(void* counter, size_t size) |
| { |
| mallocCounter_t* const mcPtr = (mallocCounter_t*)counter; |
| void* const ptr = malloc(size); |
| if (ptr==NULL) return NULL; |
| DISPLAYLEVEL(4, "allocating %u KB => effectively %u KB \n", |
| (unsigned)(size >> 10), (unsigned)(malloc_size(ptr) >> 10)); /* OS-X specific */ |
| mcPtr->totalMalloc += size; |
| mcPtr->currentMalloc += size; |
| if (mcPtr->currentMalloc > mcPtr->peakMalloc) |
| mcPtr->peakMalloc = mcPtr->currentMalloc; |
| mcPtr->nbMalloc += 1; |
| return ptr; |
| } |
| |
| static void FUZ_freeDebug(void* counter, void* address) |
| { |
| mallocCounter_t* const mcPtr = (mallocCounter_t*)counter; |
| DISPLAYLEVEL(4, "freeing %u KB \n", (unsigned)(malloc_size(address) >> 10)); |
| mcPtr->nbFree += 1; |
| mcPtr->currentMalloc -= malloc_size(address); /* OS-X specific */ |
| free(address); |
| } |
| |
| static void FUZ_displayMallocStats(mallocCounter_t count) |
| { |
| DISPLAYLEVEL(3, "peak:%6u KB, nbMallocs:%2u, total:%6u KB \n", |
| (unsigned)(count.peakMalloc >> 10), |
| count.nbMalloc, |
| (unsigned)(count.totalMalloc >> 10)); |
| } |
| |
| static int FUZ_mallocTests_internal(unsigned seed, double compressibility, unsigned part, |
| void* inBuffer, size_t inSize, void* outBuffer, size_t outSize) |
| { |
| /* test only played in verbose mode, as they are long */ |
| if (g_displayLevel<3) return 0; |
| |
| /* Create compressible noise */ |
| if (!inBuffer || !outBuffer) { |
| DISPLAY("Not enough memory, aborting\n"); |
| exit(1); |
| } |
| RDG_genBuffer(inBuffer, inSize, compressibility, 0. /*auto*/, seed); |
| |
| /* simple compression tests */ |
| if (part <= 1) |
| { int compressionLevel; |
| for (compressionLevel=1; compressionLevel<=6; compressionLevel++) { |
| mallocCounter_t malcount = INIT_MALLOC_COUNTER; |
| ZSTD_customMem const cMem = { FUZ_mallocDebug, FUZ_freeDebug, &malcount }; |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx_advanced(cMem); |
| CHECK_Z( ZSTD_compressCCtx(cctx, outBuffer, outSize, inBuffer, inSize, compressionLevel) ); |
| ZSTD_freeCCtx(cctx); |
| DISPLAYLEVEL(3, "compressCCtx level %i : ", compressionLevel); |
| FUZ_displayMallocStats(malcount); |
| } } |
| |
| /* streaming compression tests */ |
| if (part <= 2) |
| { int compressionLevel; |
| for (compressionLevel=1; compressionLevel<=6; compressionLevel++) { |
| mallocCounter_t malcount = INIT_MALLOC_COUNTER; |
| ZSTD_customMem const cMem = { FUZ_mallocDebug, FUZ_freeDebug, &malcount }; |
| ZSTD_CCtx* const cstream = ZSTD_createCStream_advanced(cMem); |
| ZSTD_outBuffer out = { outBuffer, outSize, 0 }; |
| ZSTD_inBuffer in = { inBuffer, inSize, 0 }; |
| CHECK_Z( ZSTD_initCStream(cstream, compressionLevel) ); |
| CHECK_Z( ZSTD_compressStream(cstream, &out, &in) ); |
| CHECK_Z( ZSTD_endStream(cstream, &out) ); |
| ZSTD_freeCStream(cstream); |
| DISPLAYLEVEL(3, "compressStream level %i : ", compressionLevel); |
| FUZ_displayMallocStats(malcount); |
| } } |
| |
| /* advanced MT API test */ |
| if (part <= 3) |
| { int nbThreads; |
| for (nbThreads=1; nbThreads<=4; nbThreads++) { |
| int compressionLevel; |
| for (compressionLevel=1; compressionLevel<=6; compressionLevel++) { |
| mallocCounter_t malcount = INIT_MALLOC_COUNTER; |
| ZSTD_customMem const cMem = { FUZ_mallocDebug, FUZ_freeDebug, &malcount }; |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx_advanced(cMem); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, compressionLevel) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, nbThreads) ); |
| CHECK_Z( ZSTD_compress2(cctx, outBuffer, outSize, inBuffer, inSize) ); |
| ZSTD_freeCCtx(cctx); |
| DISPLAYLEVEL(3, "compress_generic,-T%i,end level %i : ", |
| nbThreads, compressionLevel); |
| FUZ_displayMallocStats(malcount); |
| } } } |
| |
| /* advanced MT streaming API test */ |
| if (part <= 4) |
| { int nbThreads; |
| for (nbThreads=1; nbThreads<=4; nbThreads++) { |
| int compressionLevel; |
| for (compressionLevel=1; compressionLevel<=6; compressionLevel++) { |
| mallocCounter_t malcount = INIT_MALLOC_COUNTER; |
| ZSTD_customMem const cMem = { FUZ_mallocDebug, FUZ_freeDebug, &malcount }; |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx_advanced(cMem); |
| ZSTD_outBuffer out = { outBuffer, outSize, 0 }; |
| ZSTD_inBuffer in = { inBuffer, inSize, 0 }; |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, compressionLevel) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, nbThreads) ); |
| CHECK_Z( ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue) ); |
| while ( ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end) ) {} |
| ZSTD_freeCCtx(cctx); |
| DISPLAYLEVEL(3, "compress_generic,-T%i,continue level %i : ", |
| nbThreads, compressionLevel); |
| FUZ_displayMallocStats(malcount); |
| } } } |
| |
| return 0; |
| } |
| |
| static int FUZ_mallocTests(unsigned seed, double compressibility, unsigned part) |
| { |
| size_t const inSize = 64 MB + 16 MB + 4 MB + 1 MB + 256 KB + 64 KB; /* 85.3 MB */ |
| size_t const outSize = ZSTD_compressBound(inSize); |
| void* const inBuffer = malloc(inSize); |
| void* const outBuffer = malloc(outSize); |
| int result; |
| |
| /* Create compressible noise */ |
| if (!inBuffer || !outBuffer) { |
| DISPLAY("Not enough memory, aborting \n"); |
| exit(1); |
| } |
| |
| result = FUZ_mallocTests_internal(seed, compressibility, part, |
| inBuffer, inSize, outBuffer, outSize); |
| |
| free(inBuffer); |
| free(outBuffer); |
| return result; |
| } |
| |
| #else |
| |
| static int FUZ_mallocTests(unsigned seed, double compressibility, unsigned part) |
| { |
| (void)seed; (void)compressibility; (void)part; |
| return 0; |
| } |
| |
| #endif |
| |
| static void FUZ_decodeSequences(BYTE* dst, ZSTD_Sequence* seqs, size_t seqsSize, |
| BYTE* src, size_t size, ZSTD_sequenceFormat_e format) |
| { |
| size_t i; |
| size_t j; |
| for(i = 0; i < seqsSize; ++i) { |
| assert(dst + seqs[i].litLength + seqs[i].matchLength <= dst + size); |
| assert(src + seqs[i].litLength + seqs[i].matchLength <= src + size); |
| if (format == ZSTD_sf_noBlockDelimiters) { |
| assert(seqs[i].matchLength != 0 || seqs[i].offset != 0); |
| } |
| |
| memcpy(dst, src, seqs[i].litLength); |
| dst += seqs[i].litLength; |
| src += seqs[i].litLength; |
| size -= seqs[i].litLength; |
| |
| if (seqs[i].offset != 0) { |
| for (j = 0; j < seqs[i].matchLength; ++j) |
| dst[j] = dst[j - seqs[i].offset]; |
| dst += seqs[i].matchLength; |
| src += seqs[i].matchLength; |
| size -= seqs[i].matchLength; |
| } |
| } |
| if (format == ZSTD_sf_noBlockDelimiters) { |
| memcpy(dst, src, size); |
| } |
| } |
| |
| /*============================================= |
| * Unit tests |
| =============================================*/ |
| |
| static int basicUnitTests(U32 const seed, double compressibility) |
| { |
| size_t const CNBuffSize = 5 MB; |
| void* const CNBuffer = malloc(CNBuffSize); |
| size_t const compressedBufferSize = ZSTD_compressBound(CNBuffSize); |
| void* const compressedBuffer = malloc(compressedBufferSize); |
| void* const decodedBuffer = malloc(CNBuffSize); |
| int testResult = 0; |
| unsigned testNb=0; |
| size_t cSize; |
| |
| /* Create compressible noise */ |
| if (!CNBuffer || !compressedBuffer || !decodedBuffer) { |
| DISPLAY("Not enough memory, aborting\n"); |
| testResult = 1; |
| goto _end; |
| } |
| RDG_genBuffer(CNBuffer, CNBuffSize, compressibility, 0., seed); |
| |
| /* Basic tests */ |
| DISPLAYLEVEL(3, "test%3u : ZSTD_getErrorName : ", testNb++); |
| { const char* errorString = ZSTD_getErrorName(0); |
| DISPLAYLEVEL(3, "OK : %s \n", errorString); |
| } |
| |
| DISPLAYLEVEL(3, "test%3u : ZSTD_getErrorName with wrong value : ", testNb++); |
| { const char* errorString = ZSTD_getErrorName(499); |
| DISPLAYLEVEL(3, "OK : %s \n", errorString); |
| } |
| |
| DISPLAYLEVEL(3, "test%3u : min compression level : ", testNb++); |
| { int const mcl = ZSTD_minCLevel(); |
| DISPLAYLEVEL(3, "%i (OK) \n", mcl); |
| } |
| |
| DISPLAYLEVEL(3, "test%3u : ZSTD_versionNumber : ", testNb++); |
| { unsigned const vn = ZSTD_versionNumber(); |
| DISPLAYLEVEL(3, "%u (OK) \n", vn); |
| } |
| |
| DISPLAYLEVEL(3, "test%3u : ZSTD_adjustCParams : ", testNb++); |
| { |
| ZSTD_compressionParameters params; |
| memset(¶ms, 0, sizeof(params)); |
| params.windowLog = 10; |
| params.hashLog = 19; |
| params.chainLog = 19; |
| params = ZSTD_adjustCParams(params, 1000, 100000); |
| if (params.hashLog != 18) goto _output_error; |
| if (params.chainLog != 17) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3u : compress %u bytes : ", testNb++, (unsigned)CNBuffSize); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| if (cctx==NULL) goto _output_error; |
| CHECK_VAR(cSize, ZSTD_compressCCtx(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, 1) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : size of cctx for level 1 : ", testNb++); |
| { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| DISPLAYLEVEL(3, "%u bytes \n", (unsigned)cctxSize); |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : decompress skippable frame -8 size : ", testNb++); |
| { |
| char const skippable8[] = "\x50\x2a\x4d\x18\xf8\xff\xff\xff"; |
| size_t const size = ZSTD_decompress(NULL, 0, skippable8, 8); |
| if (!ZSTD_isError(size)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_getFrameContentSize test : ", testNb++); |
| { unsigned long long const rSize = ZSTD_getFrameContentSize(compressedBuffer, cSize); |
| if (rSize != CNBuffSize) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_getDecompressedSize test : ", testNb++); |
| { unsigned long long const rSize = ZSTD_getDecompressedSize(compressedBuffer, cSize); |
| if (rSize != CNBuffSize) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_findDecompressedSize test : ", testNb++); |
| { unsigned long long const rSize = ZSTD_findDecompressedSize(compressedBuffer, cSize); |
| if (rSize != CNBuffSize) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : tight ZSTD_decompressBound test : ", testNb++); |
| { |
| unsigned long long bound = ZSTD_decompressBound(compressedBuffer, cSize); |
| if (bound != CNBuffSize) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressBound test with invalid srcSize : ", testNb++); |
| { |
| unsigned long long bound = ZSTD_decompressBound(compressedBuffer, cSize - 1); |
| if (bound != ZSTD_CONTENTSIZE_ERROR) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress %u bytes : ", testNb++, (unsigned)CNBuffSize); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (r != CNBuffSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); |
| { size_t u; |
| for (u=0; u<CNBuffSize; u++) { |
| if (((BYTE*)decodedBuffer)[u] != ((BYTE*)CNBuffer)[u]) goto _output_error; |
| } } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3u : invalid endDirective : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_inBuffer inb = { CNBuffer, CNBuffSize, 0 }; |
| ZSTD_outBuffer outb = { compressedBuffer, compressedBufferSize, 0 }; |
| if (cctx==NULL) goto _output_error; |
| CHECK( ZSTD_isError( ZSTD_compressStream2(cctx, &outb, &inb, (ZSTD_EndDirective) 3) ) ); /* must fail */ |
| CHECK( ZSTD_isError( ZSTD_compressStream2(cctx, &outb, &inb, (ZSTD_EndDirective)-1) ) ); /* must fail */ |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_checkCParams : ", testNb++); |
| { |
| ZSTD_parameters params = ZSTD_getParams(3, 0, 0); |
| assert(!ZSTD_checkCParams(params.cParams)); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_createDCtx_advanced and ZSTD_sizeof_DCtx: ", testNb++); |
| { |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx_advanced(ZSTD_defaultCMem); |
| assert(dctx != NULL); |
| assert(ZSTD_sizeof_DCtx(dctx) != 0); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : misc unaccounted for zstd symbols : ", testNb++); |
| { |
| /* %p takes a void*. In ISO C, it's illegal to cast a function pointer |
| * to a data pointer. (Although in POSIX you're required to be allowed |
| * to do it...) So we have to fall back to our trusty friend memcpy. */ |
| unsigned (* const funcptr_getDictID)(const ZSTD_DDict* ddict) = |
| ZSTD_getDictID_fromDDict; |
| ZSTD_DStream* (* const funcptr_createDStream)( |
| ZSTD_customMem customMem) = ZSTD_createDStream_advanced; |
| void (* const funcptr_copyDCtx)( |
| ZSTD_DCtx* dctx, const ZSTD_DCtx* preparedDCtx) = ZSTD_copyDCtx; |
| ZSTD_nextInputType_e (* const funcptr_nextInputType)(ZSTD_DCtx* dctx) = |
| ZSTD_nextInputType; |
| const void *voidptr_getDictID; |
| const void *voidptr_createDStream; |
| const void *voidptr_copyDCtx; |
| const void *voidptr_nextInputType; |
| DEBUG_STATIC_ASSERT(sizeof(funcptr_getDictID) == sizeof(voidptr_getDictID)); |
| memcpy( |
| (void*)&voidptr_getDictID, |
| (const void*)&funcptr_getDictID, |
| sizeof(void*)); |
| memcpy( |
| (void*)&voidptr_createDStream, |
| (const void*)&funcptr_createDStream, |
| sizeof(void*)); |
| memcpy( |
| (void*)&voidptr_copyDCtx, |
| (const void*)&funcptr_copyDCtx, |
| sizeof(void*)); |
| memcpy( |
| (void*)&voidptr_nextInputType, |
| (const void*)&funcptr_nextInputType, |
| sizeof(void*)); |
| DISPLAYLEVEL(3, "%p ", voidptr_getDictID); |
| DISPLAYLEVEL(3, "%p ", voidptr_createDStream); |
| DISPLAYLEVEL(3, "%p ", voidptr_copyDCtx); |
| DISPLAYLEVEL(3, "%p ", voidptr_nextInputType); |
| } |
| DISPLAYLEVEL(3, ": OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with null dict : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); assert(dctx != NULL); |
| { size_t const r = ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| NULL, 0); |
| if (r != CNBuffSize) goto _output_error; |
| } |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with null DDict : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); assert(dctx != NULL); |
| { size_t const r = ZSTD_decompress_usingDDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| NULL); |
| if (r != CNBuffSize) goto _output_error; |
| } |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with 1 missing byte : ", testNb++); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize-1); |
| if (!ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_getErrorCode((size_t)r) != ZSTD_error_srcSize_wrong) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with 1 too much byte : ", testNb++); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize+1); |
| if (!ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress too large input : ", testNb++); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, compressedBufferSize); |
| if (!ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress into NULL buffer : ", testNb++); |
| { size_t const r = ZSTD_decompress(NULL, 0, compressedBuffer, compressedBufferSize); |
| if (!ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_getErrorCode(r) != ZSTD_error_dstSize_tooSmall) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with corrupted checksum : ", testNb++); |
| { /* create compressed buffer with checksumming enabled */ |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| if (!cctx) { |
| DISPLAY("Not enough memory, aborting\n"); |
| testResult = 1; |
| goto _end; |
| } |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1) ); |
| CHECK_VAR(cSize, ZSTD_compress2(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize) ); |
| ZSTD_freeCCtx(cctx); |
| } |
| { /* copy the compressed buffer and corrupt the checksum */ |
| size_t r; |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| if (!dctx) { |
| DISPLAY("Not enough memory, aborting\n"); |
| testResult = 1; |
| goto _end; |
| } |
| |
| ((char*)compressedBuffer)[cSize-1] += 1; |
| r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (!ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_getErrorCode(r) != ZSTD_error_checksum_wrong) goto _output_error; |
| |
| CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_forceIgnoreChecksum, ZSTD_d_ignoreChecksum)); |
| r = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize-1); |
| if (!ZSTD_isError(r)) goto _output_error; /* wrong checksum size should still throw error */ |
| r = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (ZSTD_isError(r)) goto _output_error; |
| |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressBound test with content size missing : ", testNb++); |
| { /* create compressed buffer with content size missing */ |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_contentSizeFlag, 0) ); |
| CHECK_VAR(cSize, ZSTD_compress2(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize) ); |
| ZSTD_freeCCtx(cctx); |
| } |
| { /* ensure frame content size is missing */ |
| ZSTD_frameHeader zfh; |
| size_t const ret = ZSTD_getFrameHeader(&zfh, compressedBuffer, compressedBufferSize); |
| if (ret != 0 || zfh.frameContentSize != ZSTD_CONTENTSIZE_UNKNOWN) goto _output_error; |
| } |
| { /* ensure CNBuffSize <= decompressBound */ |
| unsigned long long const bound = ZSTD_decompressBound(compressedBuffer, compressedBufferSize); |
| if (CNBuffSize > bound) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d: check DCtx size is reduced after many oversized calls : ", testNb++); |
| { |
| size_t const largeFrameSrcSize = 200; |
| size_t const smallFrameSrcSize = 10; |
| size_t const nbFrames = 256; |
| |
| size_t i = 0, consumed = 0, produced = 0, prevDCtxSize = 0; |
| int sizeReduced = 0; |
| |
| BYTE* const dst = (BYTE*)compressedBuffer; |
| ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| |
| /* create a large frame and then a bunch of small frames */ |
| size_t srcSize = ZSTD_compress((void*)dst, |
| compressedBufferSize, CNBuffer, largeFrameSrcSize, 3); |
| for (i = 0; i < nbFrames; i++) |
| srcSize += ZSTD_compress((void*)(dst + srcSize), |
| compressedBufferSize - srcSize, CNBuffer, |
| smallFrameSrcSize, 3); |
| |
| /* decompressStream and make sure that dctx size was reduced at least once */ |
| while (consumed < srcSize) { |
| ZSTD_inBuffer in = {(void*)(dst + consumed), MIN(1, srcSize - consumed), 0}; |
| ZSTD_outBuffer out = {(BYTE*)CNBuffer + produced, CNBuffSize - produced, 0}; |
| ZSTD_decompressStream(dctx, &out, &in); |
| consumed += in.pos; |
| produced += out.pos; |
| |
| /* success! size was reduced from the previous frame */ |
| if (prevDCtxSize > ZSTD_sizeof_DCtx(dctx)) |
| sizeReduced = 1; |
| |
| prevDCtxSize = ZSTD_sizeof_DCtx(dctx); |
| } |
| |
| assert(sizeReduced); |
| |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ldm fill dict out-of-bounds check", testNb++); |
| { |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| |
| size_t const size = (1U << 10); |
| size_t const dstCapacity = ZSTD_compressBound(size); |
| void* dict = (void*)malloc(size); |
| void* src = (void*)malloc(size); |
| void* dst = (void*)malloc(dstCapacity); |
| |
| RDG_genBuffer(dict, size, 0.5, 0.5, seed); |
| RDG_genBuffer(src, size, 0.5, 0.5, seed); |
| |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)); |
| assert(!ZSTD_isError(ZSTD_compress_usingDict(cctx, dst, dstCapacity, src, size, dict, size, 3))); |
| |
| ZSTD_freeCCtx(cctx); |
| free(dict); |
| free(src); |
| free(dst); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : testing dict compression with enableLdm and forceMaxWindow : ", testNb++); |
| { |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| void* dict = (void*)malloc(CNBuffSize); |
| int nbWorkers; |
| |
| for (nbWorkers = 0; nbWorkers < 3; ++nbWorkers) { |
| RDG_genBuffer(dict, CNBuffSize, 0.5, 0.5, seed); |
| RDG_genBuffer(CNBuffer, CNBuffSize, 0.6, 0.6, seed); |
| |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, nbWorkers)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_forceMaxWindow, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)); |
| CHECK_Z(ZSTD_CCtx_refPrefix(cctx, dict, CNBuffSize)); |
| cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK_Z(cSize); |
| CHECK_Z(ZSTD_decompress_usingDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, dict, CNBuffSize)); |
| } |
| |
| ZSTD_freeCCtx(cctx); |
| ZSTD_freeDCtx(dctx); |
| free(dict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : LDM + opt parser with small uncompressible block ", testNb++); |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| size_t const srcSize = 300 KB; |
| size_t const flushSize = 128 KB + 5; |
| size_t const dstSize = ZSTD_compressBound(srcSize); |
| char* src = (char*)CNBuffer; |
| char* dst = (char*)compressedBuffer; |
| |
| ZSTD_outBuffer out = { dst, dstSize, 0 }; |
| ZSTD_inBuffer in = { src, flushSize, 0 }; |
| |
| if (!cctx || !dctx) { |
| DISPLAY("Not enough memory, aborting\n"); |
| testResult = 1; |
| goto _end; |
| } |
| |
| RDG_genBuffer(src, srcSize, 0.5, 0.5, seed); |
| /* Force an LDM to exist that crosses block boundary into uncompressible block */ |
| memcpy(src + 125 KB, src, 3 KB + 5); |
| |
| /* Enable MT, LDM, and opt parser */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19)); |
| |
| /* Flushes a block of 128 KB and block of 5 bytes */ |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| |
| /* Compress the rest */ |
| in.size = 300 KB; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBuffSize, dst, out.pos)); |
| |
| ZSTD_freeCCtx(cctx); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : testing ldm dictionary gets invalidated : ", testNb++); |
| { |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| void* dict = (void*)malloc(CNBuffSize); |
| size_t const kWindowLog = 10; |
| size_t const kWindowSize = (size_t)1 << kWindowLog; |
| size_t const dictSize = kWindowSize * 10; |
| size_t const srcSize1 = kWindowSize / 2; |
| size_t const srcSize2 = kWindowSize * 10; |
| |
| if (CNBuffSize < dictSize) goto _output_error; |
| |
| RDG_genBuffer(dict, dictSize, 0.5, 0.5, seed); |
| RDG_genBuffer(CNBuffer, srcSize1 + srcSize2, 0.5, 0.5, seed); |
| |
| /* Enable checksum to verify round trip. */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| /* Disable content size to skip single-pass decompression. */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_contentSizeFlag, 0)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, (int)kWindowLog)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_ldmMinMatch, 32)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_ldmHashRateLog, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_ldmHashLog, 16)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_ldmBucketSizeLog, 3)); |
| |
| /* Round trip once with a dictionary. */ |
| CHECK_Z(ZSTD_CCtx_refPrefix(cctx, dict, dictSize)); |
| cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, srcSize1); |
| CHECK_Z(cSize); |
| CHECK_Z(ZSTD_decompress_usingDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, dict, dictSize)); |
| cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, srcSize2); |
| /* Streaming decompression to catch out of bounds offsets. */ |
| { |
| ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| ZSTD_outBuffer out = {decodedBuffer, CNBuffSize, 0}; |
| size_t const dSize = ZSTD_decompressStream(dctx, &out, &in); |
| CHECK_Z(dSize); |
| if (dSize != 0) goto _output_error; |
| } |
| |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 2)); |
| /* Round trip once with a dictionary. */ |
| CHECK_Z(ZSTD_CCtx_refPrefix(cctx, dict, dictSize)); |
| { |
| ZSTD_inBuffer in = {CNBuffer, srcSize1, 0}; |
| ZSTD_outBuffer out = {compressedBuffer, compressedBufferSize, 0}; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| cSize = out.pos; |
| } |
| CHECK_Z(ZSTD_decompress_usingDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, dict, dictSize)); |
| { |
| ZSTD_inBuffer in = {CNBuffer, srcSize2, 0}; |
| ZSTD_outBuffer out = {compressedBuffer, compressedBufferSize, 0}; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| cSize = out.pos; |
| } |
| /* Streaming decompression to catch out of bounds offsets. */ |
| { |
| ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| ZSTD_outBuffer out = {decodedBuffer, CNBuffSize, 0}; |
| size_t const dSize = ZSTD_decompressStream(dctx, &out, &in); |
| CHECK_Z(dSize); |
| if (dSize != 0) goto _output_error; |
| } |
| |
| ZSTD_freeCCtx(cctx); |
| ZSTD_freeDCtx(dctx); |
| free(dict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* Note: this test takes 0.5 seconds to run */ |
| DISPLAYLEVEL(3, "test%3i : testing refPrefx vs refPrefx + ldm (size comparison) : ", testNb++); |
| { |
| /* test a big buffer so that ldm can take effect */ |
| size_t const size = 100 MB; |
| int const windowLog = 27; |
| size_t const dstSize = ZSTD_compressBound(size); |
| |
| void* dict = (void*)malloc(size); |
| void* src = (void*)malloc(size); |
| void* dst = (void*)malloc(dstSize); |
| void* recon = (void*)malloc(size); |
| |
| size_t refPrefixCompressedSize = 0; |
| size_t refPrefixLdmComrpessedSize = 0; |
| size_t reconSize = 0; |
| |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| |
| /* make dict and src the same uncompressible data */ |
| RDG_genBuffer(src, size, 0, 0, seed); |
| memcpy(dict, src, size); |
| assert(!memcmp(dict, src, size)); |
| |
| /* set level 1 and windowLog to cover src */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, windowLog)); |
| |
| /* compress on level 1 using just refPrefix and no ldm */ |
| ZSTD_CCtx_refPrefix(cctx, dict, size); |
| refPrefixCompressedSize = ZSTD_compress2(cctx, dst, dstSize, src, size); |
| assert(!ZSTD_isError(refPrefixCompressedSize)); |
| |
| /* test round trip just refPrefix */ |
| ZSTD_DCtx_refPrefix(dctx, dict, size); |
| reconSize = ZSTD_decompressDCtx(dctx, recon, size, dst, refPrefixCompressedSize); |
| assert(!ZSTD_isError(reconSize)); |
| assert(reconSize == size); |
| assert(!memcmp(recon, src, size)); |
| |
| /* compress on level 1 using refPrefix and ldm */ |
| ZSTD_CCtx_refPrefix(cctx, dict, size);; |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)) |
| refPrefixLdmComrpessedSize = ZSTD_compress2(cctx, dst, dstSize, src, size); |
| assert(!ZSTD_isError(refPrefixLdmComrpessedSize)); |
| |
| /* test round trip refPrefix + ldm*/ |
| ZSTD_DCtx_refPrefix(dctx, dict, size); |
| reconSize = ZSTD_decompressDCtx(dctx, recon, size, dst, refPrefixLdmComrpessedSize); |
| assert(!ZSTD_isError(reconSize)); |
| assert(reconSize == size); |
| assert(!memcmp(recon, src, size)); |
| |
| /* make sure that refPrefixCompressedSize is significantly greater */ |
| assert(refPrefixCompressedSize > 10 * refPrefixLdmComrpessedSize); |
| /* make sure the ldm comrpessed size is less than 1% of original */ |
| assert((double)refPrefixLdmComrpessedSize / (double)size < 0.01); |
| |
| ZSTD_freeDCtx(dctx); |
| ZSTD_freeCCtx(cctx); |
| free(recon); |
| free(dict); |
| free(src); |
| free(dst); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d: superblock uncompressible data, too many nocompress superblocks : ", testNb++); |
| { |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| const BYTE* src = (BYTE*)CNBuffer; BYTE* dst = (BYTE*)compressedBuffer; |
| size_t srcSize = 321656; size_t dstCapacity = ZSTD_compressBound(srcSize); |
| |
| /* This is the number of bytes to stream before ending. This value |
| * was obtained by trial and error :/. */ |
| |
| const size_t streamCompressThreshold = 161792; |
| const size_t streamCompressDelta = 1024; |
| |
| /* The first 1/5 of the buffer is compressible and the last 4/5 is |
| * uncompressible. This is an approximation of the type of data |
| * the fuzzer generated to catch this bug. Streams like this were making |
| * zstd generate noCompress superblocks (which are larger than the src |
| * they come from). Do this enough times, and we'll run out of room |
| * and throw a dstSize_tooSmall error. */ |
| |
| const size_t compressiblePartSize = srcSize/5; |
| const size_t uncompressiblePartSize = srcSize-compressiblePartSize; |
| RDG_genBuffer(CNBuffer, compressiblePartSize, 0.5, 0.5, seed); |
| RDG_genBuffer((BYTE*)CNBuffer+compressiblePartSize, uncompressiblePartSize, 0, 0, seed); |
| |
| /* Setting target block size so that superblock is used */ |
| |
| assert(cctx != NULL); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_targetCBlockSize, 81); |
| |
| { size_t read; |
| for (read = 0; read < streamCompressThreshold; read += streamCompressDelta) { |
| ZSTD_inBuffer in = {src, streamCompressDelta, 0}; |
| ZSTD_outBuffer out = {dst, dstCapacity, 0}; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| src += streamCompressDelta; srcSize -= streamCompressDelta; |
| dst += out.pos; dstCapacity -= out.pos; |
| } } |
| |
| /* This is trying to catch a dstSize_tooSmall error */ |
| |
| { ZSTD_inBuffer in = {src, srcSize, 0}; |
| ZSTD_outBuffer out = {dst, dstCapacity, 0}; |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d: superblock with no literals : ", testNb++); |
| /* Generate the same data 20 times over */ |
| { size_t const avgChunkSize = CNBuffSize / 20; |
| size_t b; |
| for (b = 0; b < CNBuffSize; b += avgChunkSize) { |
| size_t const chunkSize = MIN(CNBuffSize - b, avgChunkSize); |
| RDG_genBuffer((char*)CNBuffer + b, chunkSize, compressibility, 0. /* auto */, seed); |
| } } |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const normalCSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| size_t const allowedExpansion = (CNBuffSize * 3 / 1000); |
| size_t superCSize; |
| CHECK_Z(normalCSize); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_targetCBlockSize, 1000); |
| superCSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK_Z(superCSize); |
| if (superCSize > normalCSize + allowedExpansion) { |
| DISPLAYLEVEL(1, "Superblock too big: %u > %u + %u \n", (U32)superCSize, (U32)normalCSize, (U32)allowedExpansion); |
| goto _output_error; |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| RDG_genBuffer(CNBuffer, CNBuffSize, compressibility, 0. /*auto*/, seed); |
| DISPLAYLEVEL(3, "test%3d: superblock enough room for checksum : ", testNb++) |
| /* This tests whether or not we leave enough room for the checksum at the end |
| * of the dst buffer. The bug that motivated this test was found by the |
| * stream_round_trip fuzzer but this crashes for the same reason and is |
| * far more compact than re-creating the stream_round_trip fuzzer's code path */ |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_targetCBlockSize, 64); |
| assert(!ZSTD_isError(ZSTD_compress2(cctx, compressedBuffer, 1339, CNBuffer, 1278))); |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress a NULL input with each level : ", testNb++); |
| { int level = -1; |
| ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| if (!cctx) goto _output_error; |
| for (level = -1; level <= ZSTD_maxCLevel(); ++level) { |
| CHECK_Z( ZSTD_compress(compressedBuffer, compressedBufferSize, NULL, 0, level) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, level) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, NULL, 0) ); |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : check CCtx size after compressing empty input : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const r = ZSTD_compressCCtx(cctx, compressedBuffer, compressedBufferSize, NULL, 0, 19); |
| if (ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_sizeof_CCtx(cctx) > (1U << 20)) goto _output_error; |
| ZSTD_freeCCtx(cctx); |
| cSize = r; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : decompress empty frame into NULL : ", testNb++); |
| { size_t const r = ZSTD_decompress(NULL, 0, compressedBuffer, cSize); |
| if (ZSTD_isError(r)) goto _output_error; |
| if (r != 0) goto _output_error; |
| } |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_outBuffer output; |
| if (cctx==NULL) goto _output_error; |
| output.dst = compressedBuffer; |
| output.size = compressedBufferSize; |
| output.pos = 0; |
| CHECK_Z( ZSTD_initCStream(cctx, 1) ); /* content size unknown */ |
| CHECK_Z( ZSTD_flushStream(cctx, &output) ); /* ensure no possibility to "concatenate" and determine the content size */ |
| CHECK_Z( ZSTD_endStream(cctx, &output) ); |
| ZSTD_freeCCtx(cctx); |
| /* single scan decompression */ |
| { size_t const r = ZSTD_decompress(NULL, 0, compressedBuffer, output.pos); |
| if (ZSTD_isError(r)) goto _output_error; |
| if (r != 0) goto _output_error; |
| } |
| /* streaming decompression */ |
| { ZSTD_DCtx* const dstream = ZSTD_createDStream(); |
| ZSTD_inBuffer dinput; |
| ZSTD_outBuffer doutput; |
| size_t ipos; |
| if (dstream==NULL) goto _output_error; |
| dinput.src = compressedBuffer; |
| dinput.size = 0; |
| dinput.pos = 0; |
| doutput.dst = NULL; |
| doutput.size = 0; |
| doutput.pos = 0; |
| CHECK_Z ( ZSTD_initDStream(dstream) ); |
| for (ipos=1; ipos<=output.pos; ipos++) { |
| dinput.size = ipos; |
| CHECK_Z ( ZSTD_decompressStream(dstream, &doutput, &dinput) ); |
| } |
| if (doutput.pos != 0) goto _output_error; |
| ZSTD_freeDStream(dstream); |
| } |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : re-use CCtx with expanding block size : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_parameters const params = ZSTD_getParams(1, ZSTD_CONTENTSIZE_UNKNOWN, 0); |
| assert(params.fParams.contentSizeFlag == 1); /* block size will be adapted if pledgedSrcSize is enabled */ |
| CHECK_Z( ZSTD_compressBegin_advanced(cctx, NULL, 0, params, 1 /*pledgedSrcSize*/) ); |
| CHECK_Z( ZSTD_compressEnd(cctx, compressedBuffer, compressedBufferSize, CNBuffer, 1) ); /* creates a block size of 1 */ |
| |
| CHECK_Z( ZSTD_compressBegin_advanced(cctx, NULL, 0, params, ZSTD_CONTENTSIZE_UNKNOWN) ); /* re-use same parameters */ |
| { size_t const inSize = 2* 128 KB; |
| size_t const outSize = ZSTD_compressBound(inSize); |
| CHECK_Z( ZSTD_compressEnd(cctx, compressedBuffer, outSize, CNBuffer, inSize) ); |
| /* will fail if blockSize is not resized */ |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : re-using a CCtx should compress the same : ", testNb++); |
| { size_t const sampleSize = 30; |
| int i; |
| for (i=0; i<20; i++) |
| ((char*)CNBuffer)[i] = (char)i; /* ensure no match during initial section */ |
| memcpy((char*)CNBuffer + 20, CNBuffer, 10); /* create one match, starting from beginning of sample, which is the difficult case (see #1241) */ |
| for (i=1; i<=19; i++) { |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t size1, size2; |
| DISPLAYLEVEL(5, "l%i ", i); |
| size1 = ZSTD_compressCCtx(cctx, compressedBuffer, compressedBufferSize, CNBuffer, sampleSize, i); |
| CHECK_Z(size1); |
| |
| size2 = ZSTD_compressCCtx(cctx, compressedBuffer, compressedBufferSize, CNBuffer, sampleSize, i); |
| CHECK_Z(size2); |
| CHECK_EQ(size1, size2); |
| |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, i) ); |
| size2 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, sampleSize); |
| CHECK_Z(size2); |
| CHECK_EQ(size1, size2); |
| |
| size2 = ZSTD_compress2(cctx, compressedBuffer, ZSTD_compressBound(sampleSize) - 1, CNBuffer, sampleSize); /* force streaming, as output buffer is not large enough to guarantee success */ |
| CHECK_Z(size2); |
| CHECK_EQ(size1, size2); |
| |
| { ZSTD_inBuffer inb; |
| ZSTD_outBuffer outb; |
| inb.src = CNBuffer; |
| inb.pos = 0; |
| inb.size = sampleSize; |
| outb.dst = compressedBuffer; |
| outb.pos = 0; |
| outb.size = ZSTD_compressBound(sampleSize) - 1; /* force streaming, as output buffer is not large enough to guarantee success */ |
| CHECK_Z( ZSTD_compressStream2(cctx, &outb, &inb, ZSTD_e_end) ); |
| assert(inb.pos == inb.size); |
| CHECK_EQ(size1, outb.pos); |
| } |
| |
| ZSTD_freeCCtx(cctx); |
| } |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : btultra2 & 1st block : ", testNb++); |
| { size_t const sampleSize = 1024; |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_inBuffer inb; |
| ZSTD_outBuffer outb; |
| inb.src = CNBuffer; |
| inb.pos = 0; |
| inb.size = 0; |
| outb.dst = compressedBuffer; |
| outb.pos = 0; |
| outb.size = compressedBufferSize; |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, ZSTD_maxCLevel()) ); |
| |
| inb.size = sampleSize; /* start with something, so that context is already used */ |
| CHECK_Z( ZSTD_compressStream2(cctx, &outb, &inb, ZSTD_e_end) ); /* will break internal assert if stats_init is not disabled */ |
| assert(inb.pos == inb.size); |
| outb.pos = 0; /* cancel output */ |
| |
| CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(cctx, sampleSize) ); |
| inb.size = 4; /* too small size : compression will be skipped */ |
| inb.pos = 0; |
| CHECK_Z( ZSTD_compressStream2(cctx, &outb, &inb, ZSTD_e_flush) ); |
| assert(inb.pos == inb.size); |
| |
| inb.size += 5; /* too small size : compression will be skipped */ |
| CHECK_Z( ZSTD_compressStream2(cctx, &outb, &inb, ZSTD_e_flush) ); |
| assert(inb.pos == inb.size); |
| |
| inb.size += 11; /* small enough to attempt compression */ |
| CHECK_Z( ZSTD_compressStream2(cctx, &outb, &inb, ZSTD_e_flush) ); |
| assert(inb.pos == inb.size); |
| |
| assert(inb.pos < sampleSize); |
| inb.size = sampleSize; /* large enough to trigger stats_init, but no longer at beginning */ |
| CHECK_Z( ZSTD_compressStream2(cctx, &outb, &inb, ZSTD_e_end) ); /* will break internal assert if stats_init is not disabled */ |
| assert(inb.pos == inb.size); |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : ZSTD_CCtx_getParameter() : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_outBuffer out = {NULL, 0, 0}; |
| ZSTD_inBuffer in = {NULL, 0, 0}; |
| int value; |
| |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_compressionLevel, &value)); |
| CHECK_EQ(value, 3); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_hashLog, &value)); |
| CHECK_EQ(value, 0); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_hashLog, ZSTD_HASHLOG_MIN)); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_compressionLevel, &value)); |
| CHECK_EQ(value, 3); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_hashLog, &value)); |
| CHECK_EQ(value, ZSTD_HASHLOG_MIN); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 7)); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_compressionLevel, &value)); |
| CHECK_EQ(value, 7); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_hashLog, &value)); |
| CHECK_EQ(value, ZSTD_HASHLOG_MIN); |
| /* Start a compression job */ |
| ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_compressionLevel, &value)); |
| CHECK_EQ(value, 7); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_hashLog, &value)); |
| CHECK_EQ(value, ZSTD_HASHLOG_MIN); |
| /* Reset the CCtx */ |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_compressionLevel, &value)); |
| CHECK_EQ(value, 7); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_hashLog, &value)); |
| CHECK_EQ(value, ZSTD_HASHLOG_MIN); |
| /* Reset the parameters */ |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_parameters); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_compressionLevel, &value)); |
| CHECK_EQ(value, 3); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_hashLog, &value)); |
| CHECK_EQ(value, 0); |
| |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : ldm conditionally enabled by default doesn't change cctx params: ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_outBuffer out = {NULL, 0, 0}; |
| ZSTD_inBuffer in = {NULL, 0, 0}; |
| int value; |
| |
| /* Even if LDM will be enabled by default in the applied params (since wlog >= 27 and strategy >= btopt), |
| * we should not modify the actual parameter specified by the user within the CCtx |
| */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 27)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_strategy, ZSTD_btopt)); |
| |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue)); |
| CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_enableLongDistanceMatching, &value)); |
| CHECK_EQ(value, 0); |
| |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* this test is really too long, and should be made faster */ |
| DISPLAYLEVEL(3, "test%3d : overflow protection with large windowLog : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_parameters params = ZSTD_getParams(-999, ZSTD_CONTENTSIZE_UNKNOWN, 0); |
| size_t const nbCompressions = ((1U << 31) / CNBuffSize) + 2; /* ensure U32 overflow protection is triggered */ |
| size_t cnb; |
| assert(cctx != NULL); |
| params.fParams.contentSizeFlag = 0; |
| params.cParams.windowLog = ZSTD_WINDOWLOG_MAX; |
| for (cnb = 0; cnb < nbCompressions; ++cnb) { |
| DISPLAYLEVEL(6, "run %zu / %zu \n", cnb, nbCompressions); |
| CHECK_Z( ZSTD_compressBegin_advanced(cctx, NULL, 0, params, ZSTD_CONTENTSIZE_UNKNOWN) ); /* re-use same parameters */ |
| CHECK_Z( ZSTD_compressEnd(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize) ); |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3d : size down context : ", testNb++); |
| { ZSTD_CCtx* const largeCCtx = ZSTD_createCCtx(); |
| assert(largeCCtx != NULL); |
| CHECK_Z( ZSTD_compressBegin(largeCCtx, 19) ); /* streaming implies ZSTD_CONTENTSIZE_UNKNOWN, which maximizes memory usage */ |
| CHECK_Z( ZSTD_compressEnd(largeCCtx, compressedBuffer, compressedBufferSize, CNBuffer, 1) ); |
| { size_t const largeCCtxSize = ZSTD_sizeof_CCtx(largeCCtx); /* size of context must be measured after compression */ |
| { ZSTD_CCtx* const smallCCtx = ZSTD_createCCtx(); |
| assert(smallCCtx != NULL); |
| CHECK_Z(ZSTD_compressCCtx(smallCCtx, compressedBuffer, compressedBufferSize, CNBuffer, 1, 1)); |
| { size_t const smallCCtxSize = ZSTD_sizeof_CCtx(smallCCtx); |
| DISPLAYLEVEL(5, "(large) %zuKB > 32*%zuKB (small) : ", |
| largeCCtxSize>>10, smallCCtxSize>>10); |
| assert(largeCCtxSize > 32* smallCCtxSize); /* note : "too large" definition is handled within zstd_compress.c . |
| * make this test case extreme, so that it doesn't depend on a possibly fluctuating definition */ |
| } |
| ZSTD_freeCCtx(smallCCtx); |
| } |
| { U32 const maxNbAttempts = 1100; /* nb of usages before triggering size down is handled within zstd_compress.c. |
| * currently defined as 128x, but could be adjusted in the future. |
| * make this test long enough so that it's not too much tied to the current definition within zstd_compress.c */ |
| unsigned u; |
| for (u=0; u<maxNbAttempts; u++) { |
| CHECK_Z(ZSTD_compressCCtx(largeCCtx, compressedBuffer, compressedBufferSize, CNBuffer, 1, 1)); |
| if (ZSTD_sizeof_CCtx(largeCCtx) < largeCCtxSize) break; /* sized down */ |
| } |
| DISPLAYLEVEL(5, "size down after %u attempts : ", u); |
| if (u==maxNbAttempts) goto _output_error; /* no sizedown happened */ |
| } |
| } |
| ZSTD_freeCCtx(largeCCtx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* Static CCtx tests */ |
| #define STATIC_CCTX_LEVEL 4 |
| DISPLAYLEVEL(3, "test%3i : create static CCtx for level %u : ", testNb++, STATIC_CCTX_LEVEL); |
| { size_t const staticCStreamSize = ZSTD_estimateCStreamSize(STATIC_CCTX_LEVEL); |
| void* const staticCCtxBuffer = malloc(staticCStreamSize); |
| size_t const staticDCtxSize = ZSTD_estimateDCtxSize(); |
| void* const staticDCtxBuffer = malloc(staticDCtxSize); |
| DISPLAYLEVEL(4, "CStream size = %u, ", (U32)staticCStreamSize); |
| if (staticCCtxBuffer==NULL || staticDCtxBuffer==NULL) { |
| free(staticCCtxBuffer); |
| free(staticDCtxBuffer); |
| DISPLAY("Not enough memory, aborting\n"); |
| testResult = 1; |
| goto _end; |
| } |
| { size_t const smallInSize = 32 KB; |
| ZSTD_compressionParameters const cparams_small = ZSTD_getCParams(STATIC_CCTX_LEVEL, smallInSize, 0); |
| size_t const smallCCtxSize = ZSTD_estimateCCtxSize_usingCParams(cparams_small); |
| size_t const staticCCtxSize = ZSTD_estimateCCtxSize(STATIC_CCTX_LEVEL); |
| ZSTD_CCtx* staticCCtx = ZSTD_initStaticCCtx(staticCCtxBuffer, smallCCtxSize); |
| ZSTD_DCtx* const staticDCtx = ZSTD_initStaticDCtx(staticDCtxBuffer, staticDCtxSize); |
| DISPLAYLEVEL(4, "Full CCtx size = %u, ", (U32)staticCCtxSize); |
| DISPLAYLEVEL(4, "CCtx for 32 KB = %u, ", (U32)smallCCtxSize); |
| if ((staticCCtx==NULL) || (staticDCtx==NULL)) goto _output_error; |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress small input with small static CCtx : ", testNb++); |
| CHECK_VAR(cSize, ZSTD_compressCCtx(staticCCtx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, smallInSize, STATIC_CCTX_LEVEL) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", |
| (unsigned)cSize, (double)cSize/smallInSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : compress large input with small static CCtx (must fail) : ", testNb++); |
| { size_t const r = ZSTD_compressCCtx(staticCCtx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, STATIC_CCTX_LEVEL); |
| if (ZSTD_getErrorCode((size_t)r) != ZSTD_error_memory_allocation) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : resize context to full CCtx size : ", testNb++); |
| staticCCtx = ZSTD_initStaticCStream(staticCCtxBuffer, staticCCtxSize); |
| DISPLAYLEVEL(4, "staticCCtxBuffer = %p, staticCCtx = %p , ", staticCCtxBuffer, staticCCtx); |
| if (staticCCtx == NULL) goto _output_error; |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress large input with static CCtx : ", testNb++); |
| CHECK_VAR(cSize, ZSTD_compressCCtx(staticCCtx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, STATIC_CCTX_LEVEL) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", |
| (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : compress small input often enough to trigger context reduce : ", testNb++); |
| { int nbc; |
| assert(staticCCtxSize > smallCCtxSize * ZSTD_WORKSPACETOOLARGE_FACTOR); /* ensure size down scenario */ |
| assert(CNBuffSize > smallInSize + ZSTD_WORKSPACETOOLARGE_MAXDURATION + 3); |
| for (nbc=0; nbc<ZSTD_WORKSPACETOOLARGE_MAXDURATION+2; nbc++) { |
| CHECK_Z(ZSTD_compressCCtx(staticCCtx, |
| compressedBuffer, compressedBufferSize, |
| (char*)CNBuffer + nbc, smallInSize, |
| STATIC_CCTX_LEVEL) ); |
| } } |
| DISPLAYLEVEL(3, "OK \n") |
| |
| DISPLAYLEVEL(3, "test%3i : init CCtx for level %u : ", testNb++, STATIC_CCTX_LEVEL); |
| CHECK_Z( ZSTD_compressBegin(staticCCtx, STATIC_CCTX_LEVEL) ); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compression again with static CCtx : ", testNb++); |
| CHECK_VAR(cSize, ZSTD_compressCCtx(staticCCtx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, STATIC_CCTX_LEVEL) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", |
| (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : simple decompression test with static DCtx : ", testNb++); |
| { size_t const r = ZSTD_decompressDCtx(staticDCtx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize); |
| if (r != CNBuffSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); |
| if (memcmp(decodedBuffer, CNBuffer, CNBuffSize)) goto _output_error; |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : init CCtx for too large level (must fail) : ", testNb++); |
| { size_t const r = ZSTD_compressBegin(staticCCtx, ZSTD_maxCLevel()); |
| if (!ZSTD_isError(r)) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : init CCtx for small level %u (should work again) : ", testNb++, 1); |
| CHECK( ZSTD_compressBegin(staticCCtx, 1) ); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : use CStream on CCtx-sized static context (should fail) : ", testNb++); |
| CHECK_Z( ZSTD_initCStream(staticCCtx, STATIC_CCTX_LEVEL) ); /* note : doesn't allocate */ |
| { ZSTD_outBuffer output = { compressedBuffer, compressedBufferSize, 0 }; |
| ZSTD_inBuffer input = { CNBuffer, CNBuffSize, 0 }; |
| size_t const r = ZSTD_compressStream(staticCCtx, &output, &input); /* now allocates, should fail */ |
| if (!ZSTD_isError(r)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : resize context to CStream size, then stream compress : ", testNb++); |
| staticCCtx = ZSTD_initStaticCStream(staticCCtxBuffer, staticCStreamSize); |
| assert(staticCCtx != NULL); |
| CHECK_Z( ZSTD_initCStream(staticCCtx, STATIC_CCTX_LEVEL) ); /* note : doesn't allocate */ |
| { ZSTD_outBuffer output = { compressedBuffer, compressedBufferSize, 0 }; |
| ZSTD_inBuffer input = { CNBuffer, CNBuffSize, 0 }; |
| CHECK_Z( ZSTD_compressStream(staticCCtx, &output, &input) ); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : CStream for small level %u : ", testNb++, 1); |
| CHECK_Z( ZSTD_initCStream(staticCCtx, 1) ); /* note : doesn't allocate */ |
| { ZSTD_outBuffer output = { compressedBuffer, compressedBufferSize, 0 }; |
| ZSTD_inBuffer input = { CNBuffer, CNBuffSize, 0 }; |
| CHECK_Z( ZSTD_compressStream(staticCCtx, &output, &input) ); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : init static CStream with dictionary (should fail) : ", testNb++); |
| { size_t const r = ZSTD_initCStream_usingDict(staticCCtx, CNBuffer, 64 KB, 1); |
| if (!ZSTD_isError(r)) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : use DStream on DCtx-sized static context (should fail) : ", testNb++); |
| CHECK_Z( ZSTD_initDStream(staticDCtx) ); |
| { ZSTD_outBuffer output = { decodedBuffer, CNBuffSize, 0 }; |
| ZSTD_inBuffer input = { compressedBuffer, ZSTD_FRAMEHEADERSIZE_MAX+1, 0 }; |
| size_t const r = ZSTD_decompressStream(staticDCtx, &output, &input); |
| if (!ZSTD_isError(r)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| } |
| free(staticCCtxBuffer); |
| free(staticDCtxBuffer); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : Static context sizes for negative levels : ", testNb++); |
| { size_t const cctxSizeN1 = ZSTD_estimateCCtxSize(-1); |
| size_t const cctxSizeP1 = ZSTD_estimateCCtxSize(1); |
| size_t const cstreamSizeN1 = ZSTD_estimateCStreamSize(-1); |
| size_t const cstreamSizeP1 = ZSTD_estimateCStreamSize(1); |
| |
| if (!(0 < cctxSizeN1 && cctxSizeN1 <= cctxSizeP1)) goto _output_error; |
| if (!(0 < cstreamSizeN1 && cstreamSizeN1 <= cstreamSizeP1)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| |
| /* ZSTDMT simple MT compression test */ |
| DISPLAYLEVEL(3, "test%3i : create ZSTDMT CCtx : ", testNb++); |
| { ZSTD_CCtx* const mtctx = ZSTD_createCCtx(); |
| if (mtctx==NULL) { |
| DISPLAY("mtctx : not enough memory, aborting \n"); |
| testResult = 1; |
| goto _end; |
| } |
| CHECK( ZSTD_CCtx_setParameter(mtctx, ZSTD_c_nbWorkers, 2) ); |
| CHECK( ZSTD_CCtx_setParameter(mtctx, ZSTD_c_compressionLevel, 1) ); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3u : compress %u bytes with 2 threads : ", testNb++, (unsigned)CNBuffSize); |
| CHECK_VAR(cSize, ZSTD_compress2(mtctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : decompressed size test : ", testNb++); |
| { unsigned long long const rSize = ZSTD_getFrameContentSize(compressedBuffer, cSize); |
| if (rSize != CNBuffSize) { |
| DISPLAY("ZSTD_getFrameContentSize incorrect : %u != %u \n", (unsigned)rSize, (unsigned)CNBuffSize); |
| goto _output_error; |
| } } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress %u bytes : ", testNb++, (unsigned)CNBuffSize); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (r != CNBuffSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); |
| { size_t u; |
| for (u=0; u<CNBuffSize; u++) { |
| if (((BYTE*)decodedBuffer)[u] != ((BYTE*)CNBuffer)[u]) goto _output_error; |
| } } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress -T2 with checksum : ", testNb++); |
| CHECK( ZSTD_CCtx_setParameter(mtctx, ZSTD_c_checksumFlag, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(mtctx, ZSTD_c_contentSizeFlag, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(mtctx, ZSTD_c_overlapLog, 3) ); |
| CHECK_VAR(cSize, ZSTD_compress2(mtctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress %u bytes : ", testNb++, (unsigned)CNBuffSize); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (r != CNBuffSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_freeCCtx(mtctx); |
| } |
| |
| DISPLAYLEVEL(3, "test%3u : compress empty string and decompress with small window log : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| char out[32]; |
| if (cctx == NULL || dctx == NULL) goto _output_error; |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_contentSizeFlag, 0) ); |
| CHECK_VAR(cSize, ZSTD_compress2(cctx, out, sizeof(out), NULL, 0) ); |
| DISPLAYLEVEL(3, "OK (%u bytes)\n", (unsigned)cSize); |
| |
| CHECK( ZSTD_DCtx_setParameter(dctx, ZSTD_d_windowLogMax, 10) ); |
| { char const* outPtr = out; |
| ZSTD_inBuffer inBuffer = { outPtr, cSize, 0 }; |
| ZSTD_outBuffer outBuffer = { NULL, 0, 0 }; |
| size_t dSize; |
| CHECK_VAR(dSize, ZSTD_decompressStream(dctx, &outBuffer, &inBuffer) ); |
| if (dSize != 0) goto _output_error; |
| } |
| |
| ZSTD_freeDCtx(dctx); |
| ZSTD_freeCCtx(cctx); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : compress -T2 with/without literals compression : ", testNb++) |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| size_t cSize1, cSize2; |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 2) ); |
| cSize1 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK(cSize1); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_literalCompressionMode, ZSTD_lcm_uncompressed) ); |
| cSize2 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK(cSize2); |
| CHECK_LT(cSize1, cSize2); |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Multithreaded ZSTD_compress2() with rsyncable : ", testNb++) |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| /* Set rsyncable and don't give the ZSTD_compressBound(CNBuffSize) so |
| * ZSTDMT is forced to not take the shortcut. |
| */ |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_rsyncable, 1) ); |
| CHECK( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize - 1, CNBuffer, CNBuffSize) ); |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : setting multithreaded parameters : ", testNb++) |
| { ZSTD_CCtx_params* params = ZSTD_createCCtxParams(); |
| int value; |
| /* Check that the overlap log and job size are unset. */ |
| CHECK( ZSTD_CCtxParams_getParameter(params, ZSTD_c_overlapLog, &value) ); |
| CHECK_EQ(value, 0); |
| CHECK( ZSTD_CCtxParams_getParameter(params, ZSTD_c_jobSize, &value) ); |
| CHECK_EQ(value, 0); |
| /* Set and check the overlap log and job size. */ |
| CHECK( ZSTD_CCtxParams_setParameter(params, ZSTD_c_overlapLog, 5) ); |
| CHECK( ZSTD_CCtxParams_setParameter(params, ZSTD_c_jobSize, 2 MB) ); |
| CHECK( ZSTD_CCtxParams_getParameter(params, ZSTD_c_overlapLog, &value) ); |
| CHECK_EQ(value, 5); |
| CHECK( ZSTD_CCtxParams_getParameter(params, ZSTD_c_jobSize, &value) ); |
| CHECK_EQ(value, 2 MB); |
| /* Set the number of workers and check the overlap log and job size. */ |
| CHECK( ZSTD_CCtxParams_setParameter(params, ZSTD_c_nbWorkers, 2) ); |
| CHECK( ZSTD_CCtxParams_getParameter(params, ZSTD_c_overlapLog, &value) ); |
| CHECK_EQ(value, 5); |
| CHECK( ZSTD_CCtxParams_getParameter(params, ZSTD_c_jobSize, &value) ); |
| CHECK_EQ(value, 2 MB); |
| ZSTD_freeCCtxParams(params); |
| |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* Simple API multiframe test */ |
| DISPLAYLEVEL(3, "test%3i : compress multiple frames : ", testNb++); |
| { size_t off = 0; |
| int i; |
| int const segs = 4; |
| /* only use the first half so we don't push against size limit of compressedBuffer */ |
| size_t const segSize = (CNBuffSize / 2) / segs; |
| for (i = 0; i < segs; i++) { |
| CHECK_NEWV(r, ZSTD_compress( |
| (BYTE*)compressedBuffer + off, CNBuffSize - off, |
| (BYTE*)CNBuffer + segSize * (size_t)i, segSize, |
| 5) ); |
| off += r; |
| if (i == segs/2) { |
| /* insert skippable frame */ |
| const U32 skipLen = 129 KB; |
| MEM_writeLE32((BYTE*)compressedBuffer + off, ZSTD_MAGIC_SKIPPABLE_START); |
| MEM_writeLE32((BYTE*)compressedBuffer + off + 4, skipLen); |
| off += skipLen + ZSTD_SKIPPABLEHEADERSIZE; |
| } |
| } |
| cSize = off; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : get decompressed size of multiple frames : ", testNb++); |
| { unsigned long long const r = ZSTD_findDecompressedSize(compressedBuffer, cSize); |
| if (r != CNBuffSize / 2) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : get tight decompressed bound of multiple frames : ", testNb++); |
| { unsigned long long const bound = ZSTD_decompressBound(compressedBuffer, cSize); |
| if (bound != CNBuffSize / 2) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress multiple frames : ", testNb++); |
| { CHECK_NEWV(r, ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSize)); |
| if (r != CNBuffSize / 2) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); |
| if (memcmp(decodedBuffer, CNBuffer, CNBuffSize / 2) != 0) goto _output_error; |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* Dictionary and CCtx Duplication tests */ |
| { ZSTD_CCtx* const ctxOrig = ZSTD_createCCtx(); |
| ZSTD_CCtx* const ctxDuplicated = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| static const size_t dictSize = 551; |
| assert(dctx != NULL); assert(ctxOrig != NULL); assert(ctxDuplicated != NULL); |
| |
| DISPLAYLEVEL(3, "test%3i : copy context too soon : ", testNb++); |
| { size_t const copyResult = ZSTD_copyCCtx(ctxDuplicated, ctxOrig, 0); |
| if (!ZSTD_isError(copyResult)) goto _output_error; } /* error must be detected */ |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : load dictionary into context : ", testNb++); |
| CHECK( ZSTD_compressBegin_usingDict(ctxOrig, CNBuffer, dictSize, 2) ); |
| CHECK( ZSTD_copyCCtx(ctxDuplicated, ctxOrig, 0) ); /* Begin_usingDict implies unknown srcSize, so match that */ |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress with flat dictionary : ", testNb++); |
| cSize = 0; |
| CHECKPLUS(r, ZSTD_compressEnd(ctxOrig, |
| compressedBuffer, compressedBufferSize, |
| (const char*)CNBuffer + dictSize, CNBuffSize - dictSize), |
| cSize += r); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : frame built with flat dictionary should be decompressible : ", testNb++); |
| CHECKPLUS(r, ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| CNBuffer, dictSize), |
| if (r != CNBuffSize - dictSize) goto _output_error); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress with duplicated context : ", testNb++); |
| { size_t const cSizeOrig = cSize; |
| cSize = 0; |
| CHECKPLUS(r, ZSTD_compressEnd(ctxDuplicated, |
| compressedBuffer, compressedBufferSize, |
| (const char*)CNBuffer + dictSize, CNBuffSize - dictSize), |
| cSize += r); |
| if (cSize != cSizeOrig) goto _output_error; /* should be identical ==> same size */ |
| } |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : frame built with duplicated context should be decompressible : ", testNb++); |
| CHECKPLUS(r, ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| CNBuffer, dictSize), |
| if (r != CNBuffSize - dictSize) goto _output_error); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with DDict : ", testNb++); |
| { ZSTD_DDict* const ddict = ZSTD_createDDict(CNBuffer, dictSize); |
| size_t const r = ZSTD_decompress_usingDDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, ddict); |
| if (r != CNBuffSize - dictSize) goto _output_error; |
| DISPLAYLEVEL(3, "OK (size of DDict : %u) \n", (unsigned)ZSTD_sizeof_DDict(ddict)); |
| ZSTD_freeDDict(ddict); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : decompress with static DDict : ", testNb++); |
| { size_t const ddictBufferSize = ZSTD_estimateDDictSize(dictSize, ZSTD_dlm_byCopy); |
| void* const ddictBuffer = malloc(ddictBufferSize); |
| if (ddictBuffer == NULL) goto _output_error; |
| { const ZSTD_DDict* const ddict = ZSTD_initStaticDDict(ddictBuffer, ddictBufferSize, CNBuffer, dictSize, ZSTD_dlm_byCopy, ZSTD_dct_auto); |
| size_t const r = ZSTD_decompress_usingDDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, ddict); |
| if (r != CNBuffSize - dictSize) goto _output_error; |
| } |
| free(ddictBuffer); |
| DISPLAYLEVEL(3, "OK (size of static DDict : %u) \n", (unsigned)ddictBufferSize); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : check content size on duplicated context : ", testNb++); |
| { size_t const testSize = CNBuffSize / 3; |
| { ZSTD_parameters p = ZSTD_getParams(2, testSize, dictSize); |
| p.fParams.contentSizeFlag = 1; |
| CHECK( ZSTD_compressBegin_advanced(ctxOrig, CNBuffer, dictSize, p, testSize-1) ); |
| } |
| CHECK( ZSTD_copyCCtx(ctxDuplicated, ctxOrig, testSize) ); |
| |
| CHECK_VAR(cSize, ZSTD_compressEnd(ctxDuplicated, compressedBuffer, ZSTD_compressBound(testSize), |
| (const char*)CNBuffer + dictSize, testSize) ); |
| { ZSTD_frameHeader zfh; |
| if (ZSTD_getFrameHeader(&zfh, compressedBuffer, cSize)) goto _output_error; |
| if ((zfh.frameContentSize != testSize) && (zfh.frameContentSize != 0)) goto _output_error; |
| } } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| if ((int)(compressibility * 100 + 0.1) == FUZ_compressibility_default) { /* test only valid with known input */ |
| size_t const flatdictSize = 22 KB; |
| size_t const contentSize = 9 KB; |
| const void* const dict = (const char*)CNBuffer; |
| const void* const contentStart = (const char*)dict + flatdictSize; |
| size_t const target_nodict_cSize[22+1] = { 3840, 3770, 3870, 3830, 3770, |
| 3770, 3770, 3770, 3750, 3750, |
| 3742, 3670, 3670, 3660, 3660, |
| 3660, 3660, 3660, 3660, 3660, |
| 3660, 3660, 3660 }; |
| size_t const target_wdict_cSize[22+1] = { 2830, 2890, 2890, 2820, 2940, |
| 2950, 2950, 2921, 2900, 2891, |
| 2910, 2910, 2910, 2770, 2760, |
| 2750, 2750, 2750, 2750, 2750, |
| 2750, 2750, 2750 }; |
| int l = 1; |
| int const maxLevel = ZSTD_maxCLevel(); |
| |
| DISPLAYLEVEL(3, "test%3i : flat-dictionary efficiency test : \n", testNb++); |
| assert(maxLevel == 22); |
| RDG_genBuffer(CNBuffer, flatdictSize + contentSize, compressibility, 0., seed); |
| DISPLAYLEVEL(4, "content hash : %016llx; dict hash : %016llx \n", XXH64(contentStart, contentSize, 0), XXH64(dict, flatdictSize, 0)); |
| |
| for ( ; l <= maxLevel; l++) { |
| size_t const nodict_cSize = ZSTD_compress(compressedBuffer, compressedBufferSize, |
| contentStart, contentSize, l); |
| if (nodict_cSize > target_nodict_cSize[l]) { |
| DISPLAYLEVEL(1, "error : compression at level %i worse than expected (%u > %u) \n", |
| l, (unsigned)nodict_cSize, (unsigned)target_nodict_cSize[l]); |
| goto _output_error; |
| } |
| DISPLAYLEVEL(4, "level %i : max expected %u >= reached %u \n", |
| l, (unsigned)target_nodict_cSize[l], (unsigned)nodict_cSize); |
| } |
| for ( l=1 ; l <= maxLevel; l++) { |
| size_t const wdict_cSize = ZSTD_compress_usingDict(ctxOrig, |
| compressedBuffer, compressedBufferSize, |
| contentStart, contentSize, |
| dict, flatdictSize, |
| l); |
| if (wdict_cSize > target_wdict_cSize[l]) { |
| DISPLAYLEVEL(1, "error : compression with dictionary at level %i worse than expected (%u > %u) \n", |
| l, (unsigned)wdict_cSize, (unsigned)target_wdict_cSize[l]); |
| goto _output_error; |
| } |
| DISPLAYLEVEL(4, "level %i with dictionary : max expected %u >= reached %u \n", |
| l, (unsigned)target_wdict_cSize[l], (unsigned)wdict_cSize); |
| } |
| |
| DISPLAYLEVEL(4, "compression efficiency tests OK \n"); |
| } |
| |
| ZSTD_freeCCtx(ctxOrig); |
| ZSTD_freeCCtx(ctxDuplicated); |
| ZSTD_freeDCtx(dctx); |
| } |
| |
| /* Dictionary and dictBuilder tests */ |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const dictBufferCapacity = 16 KB; |
| void* const dictBuffer = malloc(dictBufferCapacity); |
| size_t const totalSampleSize = 1 MB; |
| size_t const sampleUnitSize = 8 KB; |
| U32 const nbSamples = (U32)(totalSampleSize / sampleUnitSize); |
| size_t* const samplesSizes = (size_t*) malloc(nbSamples * sizeof(size_t)); |
| size_t dictSize; |
| U32 dictID; |
| size_t dictHeaderSize; |
| |
| if (dictBuffer==NULL || samplesSizes==NULL) { |
| free(dictBuffer); |
| free(samplesSizes); |
| goto _output_error; |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : dictBuilder on cyclic data : ", testNb++); |
| assert(compressedBufferSize >= totalSampleSize); |
| { U32 u; for (u=0; u<totalSampleSize; u++) ((BYTE*)decodedBuffer)[u] = (BYTE)u; } |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| { size_t const sDictSize = ZDICT_trainFromBuffer(dictBuffer, dictBufferCapacity, |
| decodedBuffer, samplesSizes, nbSamples); |
| if (ZDICT_isError(sDictSize)) goto _output_error; |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)sDictSize); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : dictBuilder : ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| dictSize = ZDICT_trainFromBuffer(dictBuffer, dictBufferCapacity, |
| CNBuffer, samplesSizes, nbSamples); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)dictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : Multithreaded COVER dictBuilder : ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| { ZDICT_cover_params_t coverParams; |
| memset(&coverParams, 0, sizeof(coverParams)); |
| coverParams.steps = 8; |
| coverParams.nbThreads = 4; |
| dictSize = ZDICT_optimizeTrainFromBuffer_cover( |
| dictBuffer, dictBufferCapacity, |
| CNBuffer, samplesSizes, nbSamples/8, /* less samples for faster tests */ |
| &coverParams); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)dictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : COVER dictBuilder with shrinkDict: ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| { ZDICT_cover_params_t coverParams; |
| memset(&coverParams, 0, sizeof(coverParams)); |
| coverParams.steps = 8; |
| coverParams.nbThreads = 4; |
| coverParams.shrinkDict = 1; |
| coverParams.shrinkDictMaxRegression = 1; |
| dictSize = ZDICT_optimizeTrainFromBuffer_cover( |
| dictBuffer, dictBufferCapacity, |
| CNBuffer, samplesSizes, nbSamples/8, /* less samples for faster tests */ |
| &coverParams); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)dictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : Multithreaded FASTCOVER dictBuilder : ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| { ZDICT_fastCover_params_t fastCoverParams; |
| memset(&fastCoverParams, 0, sizeof(fastCoverParams)); |
| fastCoverParams.steps = 8; |
| fastCoverParams.nbThreads = 4; |
| dictSize = ZDICT_optimizeTrainFromBuffer_fastCover( |
| dictBuffer, dictBufferCapacity, |
| CNBuffer, samplesSizes, nbSamples, |
| &fastCoverParams); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)dictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : FASTCOVER dictBuilder with shrinkDict: ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| { ZDICT_fastCover_params_t fastCoverParams; |
| memset(&fastCoverParams, 0, sizeof(fastCoverParams)); |
| fastCoverParams.steps = 8; |
| fastCoverParams.nbThreads = 4; |
| fastCoverParams.shrinkDict = 1; |
| fastCoverParams.shrinkDictMaxRegression = 1; |
| dictSize = ZDICT_optimizeTrainFromBuffer_fastCover( |
| dictBuffer, dictBufferCapacity, |
| CNBuffer, samplesSizes, nbSamples, |
| &fastCoverParams); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)dictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : check dictID : ", testNb++); |
| dictID = ZDICT_getDictID(dictBuffer, dictSize); |
| if (dictID==0) goto _output_error; |
| DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictID); |
| |
| DISPLAYLEVEL(3, "test%3i : check dict header size no error : ", testNb++); |
| dictHeaderSize = ZDICT_getDictHeaderSize(dictBuffer, dictSize); |
| if (dictHeaderSize==0) goto _output_error; |
| DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictHeaderSize); |
| |
| DISPLAYLEVEL(3, "test%3i : check dict header size correctness : ", testNb++); |
| { unsigned char const dictBufferFixed[144] = { 0x37, 0xa4, 0x30, 0xec, 0x63, 0x00, 0x00, 0x00, 0x08, 0x10, 0x00, 0x1f, |
| 0x0f, 0x00, 0x28, 0xe5, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x80, 0x0f, 0x9e, 0x0f, 0x00, 0x00, 0x24, 0x40, 0x80, 0x00, 0x01, |
| 0x02, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0xde, 0x08, |
| 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, |
| 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, |
| 0x08, 0x08, 0x08, 0x08, 0xbc, 0xe1, 0x4b, 0x92, 0x0e, 0xb4, 0x7b, 0x18, |
| 0x86, 0x61, 0x18, 0xc6, 0x18, 0x63, 0x8c, 0x31, 0xc6, 0x18, 0x63, 0x8c, |
| 0x31, 0x66, 0x66, 0x66, 0x66, 0xb6, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x04, |
| 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x20, 0x73, 0x6f, 0x64, 0x61, |
| 0x6c, 0x65, 0x73, 0x20, 0x74, 0x6f, 0x72, 0x74, 0x6f, 0x72, 0x20, 0x65, |
| 0x6c, 0x65, 0x69, 0x66, 0x65, 0x6e, 0x64, 0x2e, 0x20, 0x41, 0x6c, 0x69 }; |
| dictHeaderSize = ZDICT_getDictHeaderSize(dictBufferFixed, 144); |
| if (dictHeaderSize != 115) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictHeaderSize); |
| |
| DISPLAYLEVEL(3, "test%3i : compress with dictionary : ", testNb++); |
| cSize = ZSTD_compress_usingDict(cctx, compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, |
| dictBuffer, dictSize, 4); |
| if (ZSTD_isError(cSize)) goto _output_error; |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : retrieve dictID from dictionary : ", testNb++); |
| { U32 const did = ZSTD_getDictID_fromDict(dictBuffer, dictSize); |
| if (did != dictID) goto _output_error; /* non-conformant (content-only) dictionary */ |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : retrieve dictID from frame : ", testNb++); |
| { U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize); |
| if (did != dictID) goto _output_error; /* non-conformant (content-only) dictionary */ |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : frame built with dictionary should be decompressible : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); assert(dctx != NULL); |
| CHECKPLUS(r, ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| dictBuffer, dictSize), |
| if (r != CNBuffSize) goto _output_error); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : estimate CDict size : ", testNb++); |
| { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBuffSize, dictSize); |
| size_t const estimatedSize = ZSTD_estimateCDictSize_advanced(dictSize, cParams, ZSTD_dlm_byRef); |
| DISPLAYLEVEL(3, "OK : %u \n", (unsigned)estimatedSize); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : compress with CDict ", testNb++); |
| { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBuffSize, dictSize); |
| ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictBuffer, dictSize, |
| ZSTD_dlm_byRef, ZSTD_dct_auto, |
| cParams, ZSTD_defaultCMem); |
| assert(cdict != NULL); |
| DISPLAYLEVEL(3, "(size : %u) : ", (unsigned)ZSTD_sizeof_CDict(cdict)); |
| assert(ZSTD_getDictID_fromDict(dictBuffer, dictSize) == ZSTD_getDictID_fromCDict(cdict)); |
| cSize = ZSTD_compress_usingCDict(cctx, compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, cdict); |
| ZSTD_freeCDict(cdict); |
| if (ZSTD_isError(cSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : retrieve dictID from frame : ", testNb++); |
| { U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize); |
| if (did != dictID) goto _output_error; /* non-conformant (content-only) dictionary */ |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : frame built with dictionary should be decompressible : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); assert(dctx != NULL); |
| CHECKPLUS(r, ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| dictBuffer, dictSize), |
| if (r != CNBuffSize) goto _output_error); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress with static CDict : ", testNb++); |
| { int const maxLevel = ZSTD_maxCLevel(); |
| int level; |
| for (level = 1; level <= maxLevel; ++level) { |
| ZSTD_compressionParameters const cParams = ZSTD_getCParams(level, CNBuffSize, dictSize); |
| size_t const cdictSize = ZSTD_estimateCDictSize_advanced(dictSize, cParams, ZSTD_dlm_byCopy); |
| void* const cdictBuffer = malloc(cdictSize); |
| if (cdictBuffer==NULL) goto _output_error; |
| { const ZSTD_CDict* const cdict = ZSTD_initStaticCDict( |
| cdictBuffer, cdictSize, |
| dictBuffer, dictSize, |
| ZSTD_dlm_byCopy, ZSTD_dct_auto, |
| cParams); |
| if (cdict == NULL) { |
| DISPLAY("ZSTD_initStaticCDict failed "); |
| goto _output_error; |
| } |
| cSize = ZSTD_compress_usingCDict(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, MIN(10 KB, CNBuffSize), cdict); |
| if (ZSTD_isError(cSize)) { |
| DISPLAY("ZSTD_compress_usingCDict failed "); |
| goto _output_error; |
| } } |
| free(cdictBuffer); |
| } } |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compress_usingCDict_advanced, no contentSize, no dictID : ", testNb++); |
| { ZSTD_frameParameters const fParams = { 0 /* frameSize */, 1 /* checksum */, 1 /* noDictID*/ }; |
| ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBuffSize, dictSize); |
| ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictBuffer, dictSize, ZSTD_dlm_byRef, ZSTD_dct_auto, cParams, ZSTD_defaultCMem); |
| assert(cdict != NULL); |
| cSize = ZSTD_compress_usingCDict_advanced(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, |
| cdict, fParams); |
| ZSTD_freeCDict(cdict); |
| if (ZSTD_isError(cSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : try retrieving contentSize from frame : ", testNb++); |
| { U64 const contentSize = ZSTD_getFrameContentSize(compressedBuffer, cSize); |
| if (contentSize != ZSTD_CONTENTSIZE_UNKNOWN) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK (unknown)\n"); |
| |
| DISPLAYLEVEL(3, "test%3i : frame built without dictID should be decompressible : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| assert(dctx != NULL); |
| CHECKPLUS(r, ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| dictBuffer, dictSize), |
| if (r != CNBuffSize) goto _output_error); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_compress_advanced, no dictID : ", testNb++); |
| { ZSTD_parameters p = ZSTD_getParams(3, CNBuffSize, dictSize); |
| p.fParams.noDictIDFlag = 1; |
| cSize = ZSTD_compress_advanced(cctx, compressedBuffer, compressedBufferSize, |
| CNBuffer, CNBuffSize, |
| dictBuffer, dictSize, p); |
| if (ZSTD_isError(cSize)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBuffSize*100); |
| |
| DISPLAYLEVEL(3, "test%3i : frame built without dictID should be decompressible : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); assert(dctx != NULL); |
| CHECKPLUS(r, ZSTD_decompress_usingDict(dctx, |
| decodedBuffer, CNBuffSize, |
| compressedBuffer, cSize, |
| dictBuffer, dictSize), |
| if (r != CNBuffSize) goto _output_error); |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : dictionary containing only header should return error : ", testNb++); |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| assert(dctx != NULL); |
| { const size_t ret = ZSTD_decompress_usingDict( |
| dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, |
| "\x37\xa4\x30\xec\x11\x22\x33\x44", 8); |
| if (ZSTD_getErrorCode(ret) != ZSTD_error_dictionary_corrupted) |
| goto _output_error; |
| } |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Building cdict w/ ZSTD_dct_fullDict on a good dictionary : ", testNb++); |
| { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBuffSize, dictSize); |
| ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictBuffer, dictSize, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem); |
| if (cdict==NULL) goto _output_error; |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Building cdict w/ ZSTD_dct_fullDict on a rawContent (must fail) : ", testNb++); |
| { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBuffSize, dictSize); |
| ZSTD_CDict* const cdict = ZSTD_createCDict_advanced((const char*)dictBuffer+1, dictSize-1, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem); |
| if (cdict!=NULL) goto _output_error; |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| { char* rawDictBuffer = (char*)malloc(dictSize); |
| assert(rawDictBuffer); |
| memcpy(rawDictBuffer, (char*)dictBuffer + 2, dictSize - 2); |
| memset(rawDictBuffer + dictSize - 2, 0, 2); |
| MEM_writeLE32((char*)rawDictBuffer, ZSTD_MAGIC_DICTIONARY); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading rawContent starting with dict header w/ ZSTD_dct_auto should fail : ", testNb++); |
| { |
| size_t ret; |
| /* Either operation is allowed to fail, but one must fail. */ |
| ret = ZSTD_CCtx_loadDictionary_advanced( |
| cctx, (const char*)rawDictBuffer, dictSize, ZSTD_dlm_byRef, ZSTD_dct_auto); |
| if (!ZSTD_isError(ret)) { |
| ret = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)); |
| if (!ZSTD_isError(ret)) goto _output_error; |
| } |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading rawContent starting with dict header w/ ZSTD_dct_rawContent should pass : ", testNb++); |
| { |
| size_t ret; |
| ret = ZSTD_CCtx_loadDictionary_advanced( |
| cctx, (const char*)rawDictBuffer, dictSize, ZSTD_dlm_byRef, ZSTD_dct_rawContent); |
| if (ZSTD_isError(ret)) goto _output_error; |
| ret = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)); |
| if (ZSTD_isError(ret)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Testing non-attached CDict with ZSTD_dct_rawContent : ", testNb++); |
| { size_t const srcSize = MIN(CNBuffSize, 100); |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| /* Force the dictionary to be reloaded in raw content mode */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_forceAttachDict, ZSTD_dictForceLoad)); |
| CHECK_Z(ZSTD_CCtx_loadDictionary_advanced(cctx, rawDictBuffer, dictSize, ZSTD_dlm_byRef, ZSTD_dct_rawContent)); |
| cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, srcSize); |
| CHECK_Z(cSize); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| free(rawDictBuffer); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_CCtx_refCDict() then set parameters : ", testNb++); |
| { ZSTD_CDict* const cdict = ZSTD_createCDict(CNBuffer, dictSize, 1); |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 1) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_hashLog, 12 )); |
| CHECK_Z( ZSTD_CCtx_refCDict(cctx, cdict) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 1) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_hashLog, 12 )); |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading dictionary before setting parameters is the same as loading after : ", testNb++); |
| { |
| size_t size1, size2; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 7) ); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, CNBuffer, MIN(CNBuffSize, 10 KB)) ); |
| size1 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| if (ZSTD_isError(size1)) goto _output_error; |
| |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, CNBuffer, MIN(CNBuffSize, 10 KB)) ); |
| CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 7) ); |
| size2 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| if (ZSTD_isError(size2)) goto _output_error; |
| |
| if (size1 != size2) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading a dictionary clears the prefix : ", testNb++); |
| { |
| CHECK_Z( ZSTD_CCtx_refPrefix(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)) ); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading a dictionary clears the cdict : ", testNb++); |
| { |
| ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, 1); |
| CHECK_Z( ZSTD_CCtx_refCDict(cctx, cdict) ); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)) ); |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading a cdict clears the prefix : ", testNb++); |
| { |
| ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, 1); |
| CHECK_Z( ZSTD_CCtx_refPrefix(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_CCtx_refCDict(cctx, cdict) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)) ); |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading a cdict clears the dictionary : ", testNb++); |
| { |
| ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, 1); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_CCtx_refCDict(cctx, cdict) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)) ); |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading a prefix clears the dictionary : ", testNb++); |
| { |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_CCtx_refPrefix(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)) ); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loading a prefix clears the cdict : ", testNb++); |
| { |
| ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, 1); |
| CHECK_Z( ZSTD_CCtx_refCDict(cctx, cdict) ); |
| CHECK_Z( ZSTD_CCtx_refPrefix(cctx, (const char*)dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100)) ); |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loaded dictionary persists across reset session : ", testNb++); |
| { |
| size_t size1, size2; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, CNBuffer, MIN(CNBuffSize, 10 KB)) ); |
| size1 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| if (ZSTD_isError(size1)) goto _output_error; |
| |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only); |
| size2 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| if (ZSTD_isError(size2)) goto _output_error; |
| |
| if (size1 != size2) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Loaded dictionary is cleared after resetting parameters : ", testNb++); |
| { |
| size_t size1, size2; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, CNBuffer, MIN(CNBuffSize, 10 KB)) ); |
| size1 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| if (ZSTD_isError(size1)) goto _output_error; |
| |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| size2 = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| if (ZSTD_isError(size2)) goto _output_error; |
| |
| if (size1 == size2) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_CCtx_loadDictionary(cctx, dictBuffer, dictSize) ); |
| cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBuffSize, 100 KB)); |
| CHECK_Z(cSize); |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressDCtx() with dictionary : ", testNb++); |
| { |
| ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| size_t ret; |
| /* We should fail to decompress without a dictionary. */ |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| ret = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| 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, dictBuffer, dictSize) ); |
| CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) ); |
| /* The dictionary should presist across calls. */ |
| CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) ); |
| /* When we reset the context the dictionary is cleared. */ |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| ret = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (!ZSTD_isError(ret)) goto _output_error; |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_decompressDCtx() with ddict : ", testNb++); |
| { |
| ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| ZSTD_DDict* ddict = ZSTD_createDDict(dictBuffer, dictSize); |
| size_t ret; |
| /* We should succeed to decompress with the ddict. */ |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_DCtx_refDDict(dctx, ddict) ); |
| CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) ); |
| /* The ddict should presist across calls. */ |
| CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) ); |
| /* When we reset the context the ddict is cleared. */ |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| ret = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| 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(); |
| size_t ret; |
| /* We should succeed to decompress with the prefix. */ |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z( ZSTD_DCtx_refPrefix_advanced(dctx, dictBuffer, dictSize, ZSTD_dct_auto) ); |
| CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) ); |
| /* The prefix should be cleared after the first compression. */ |
| ret = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (!ZSTD_isError(ret)) goto _output_error; |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Dictionary with non-default repcodes : ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| dictSize = ZDICT_trainFromBuffer(dictBuffer, dictSize, |
| CNBuffer, samplesSizes, nbSamples); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| /* Set all the repcodes to non-default */ |
| { |
| BYTE* dictPtr = (BYTE*)dictBuffer; |
| BYTE* dictLimit = dictPtr + dictSize - 12; |
| /* Find the repcodes */ |
| while (dictPtr < dictLimit && |
| (MEM_readLE32(dictPtr) != 1 || MEM_readLE32(dictPtr + 4) != 4 || |
| MEM_readLE32(dictPtr + 8) != 8)) { |
| ++dictPtr; |
| } |
| if (dictPtr >= dictLimit) goto _output_error; |
| MEM_writeLE32(dictPtr + 0, 10); |
| MEM_writeLE32(dictPtr + 4, 10); |
| MEM_writeLE32(dictPtr + 8, 10); |
| /* Set the last 8 bytes to 'x' */ |
| memset((BYTE*)dictBuffer + dictSize - 8, 'x', 8); |
| } |
| /* The optimal parser checks all the repcodes. |
| * Make sure at least one is a match >= targetLength so that it is |
| * immediately chosen. This will make sure that the compressor and |
| * decompressor agree on at least one of the repcodes. |
| */ |
| { size_t dSize; |
| BYTE data[1024]; |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| ZSTD_compressionParameters const cParams = ZSTD_getCParams(19, CNBuffSize, dictSize); |
| ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictBuffer, dictSize, |
| ZSTD_dlm_byRef, ZSTD_dct_auto, |
| cParams, ZSTD_defaultCMem); |
| assert(dctx != NULL); assert(cdict != NULL); |
| memset(data, 'x', sizeof(data)); |
| cSize = ZSTD_compress_usingCDict(cctx, compressedBuffer, compressedBufferSize, |
| data, sizeof(data), cdict); |
| ZSTD_freeCDict(cdict); |
| if (ZSTD_isError(cSize)) { DISPLAYLEVEL(5, "Compression error %s : ", ZSTD_getErrorName(cSize)); goto _output_error; } |
| dSize = ZSTD_decompress_usingDict(dctx, decodedBuffer, sizeof(data), compressedBuffer, cSize, dictBuffer, dictSize); |
| if (ZSTD_isError(dSize)) { DISPLAYLEVEL(5, "Decompression error %s : ", ZSTD_getErrorName(dSize)); goto _output_error; } |
| if (memcmp(data, decodedBuffer, sizeof(data))) { DISPLAYLEVEL(5, "Data corruption : "); goto _output_error; } |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_freeCCtx(cctx); |
| free(dictBuffer); |
| free(samplesSizes); |
| } |
| |
| /* COVER dictionary builder tests */ |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t dictSize = 16 KB; |
| size_t optDictSize = dictSize; |
| void* dictBuffer = malloc(dictSize); |
| size_t const totalSampleSize = 1 MB; |
| size_t const sampleUnitSize = 8 KB; |
| U32 const nbSamples = (U32)(totalSampleSize / sampleUnitSize); |
| size_t* const samplesSizes = (size_t*) malloc(nbSamples * sizeof(size_t)); |
| U32 seed32 = seed; |
| ZDICT_cover_params_t params; |
| U32 dictID; |
| |
| if (dictBuffer==NULL || samplesSizes==NULL) { |
| free(dictBuffer); |
| free(samplesSizes); |
| goto _output_error; |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : ZDICT_trainFromBuffer_cover : ", testNb++); |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| memset(¶ms, 0, sizeof(params)); |
| params.d = 1 + (FUZ_rand(&seed32) % 16); |
| params.k = params.d + (FUZ_rand(&seed32) % 256); |
| dictSize = ZDICT_trainFromBuffer_cover(dictBuffer, dictSize, |
| CNBuffer, samplesSizes, nbSamples, |
| params); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)dictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : check dictID : ", testNb++); |
| dictID = ZDICT_getDictID(dictBuffer, dictSize); |
| if (dictID==0) goto _output_error; |
| DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictID); |
| |
| DISPLAYLEVEL(3, "test%3i : ZDICT_optimizeTrainFromBuffer_cover : ", testNb++); |
| memset(¶ms, 0, sizeof(params)); |
| params.steps = 4; |
| optDictSize = ZDICT_optimizeTrainFromBuffer_cover(dictBuffer, optDictSize, |
| CNBuffer, samplesSizes, |
| nbSamples / 4, ¶ms); |
| if (ZDICT_isError(optDictSize)) goto _output_error; |
| DISPLAYLEVEL(3, "OK, created dictionary of size %u \n", (unsigned)optDictSize); |
| |
| DISPLAYLEVEL(3, "test%3i : check dictID : ", testNb++); |
| dictID = ZDICT_getDictID(dictBuffer, optDictSize); |
| if (dictID==0) goto _output_error; |
| DISPLAYLEVEL(3, "OK : %u \n", (unsigned)dictID); |
| |
| ZSTD_freeCCtx(cctx); |
| free(dictBuffer); |
| free(samplesSizes); |
| } |
| |
| /* Decompression defense tests */ |
| DISPLAYLEVEL(3, "test%3i : Check input length for magic number : ", testNb++); |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, CNBuffer, 3); /* too small input */ |
| if (!ZSTD_isError(r)) goto _output_error; |
| if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Check magic Number : ", testNb++); |
| ((char*)(CNBuffer))[0] = 1; |
| { size_t const r = ZSTD_decompress(decodedBuffer, CNBuffSize, CNBuffer, 4); |
| if (!ZSTD_isError(r)) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* content size verification test */ |
| DISPLAYLEVEL(3, "test%3i : Content size verification : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const srcSize = 5000; |
| size_t const wrongSrcSize = (srcSize + 1000); |
| ZSTD_parameters params = ZSTD_getParams(1, wrongSrcSize, 0); |
| params.fParams.contentSizeFlag = 1; |
| CHECK( ZSTD_compressBegin_advanced(cctx, NULL, 0, params, wrongSrcSize) ); |
| { size_t const result = ZSTD_compressEnd(cctx, decodedBuffer, CNBuffSize, CNBuffer, srcSize); |
| if (!ZSTD_isError(result)) goto _output_error; |
| if (ZSTD_getErrorCode(result) != ZSTD_error_srcSize_wrong) goto _output_error; |
| DISPLAYLEVEL(3, "OK : %s \n", ZSTD_getErrorName(result)); |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| |
| /* negative compression level test : ensure simple API and advanced API produce same result */ |
| DISPLAYLEVEL(3, "test%3i : negative compression level : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const srcSize = CNBuffSize / 5; |
| int const compressionLevel = -1; |
| |
| assert(cctx != NULL); |
| { ZSTD_parameters const params = ZSTD_getParams(compressionLevel, srcSize, 0); |
| size_t const cSize_1pass = ZSTD_compress_advanced(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, srcSize, |
| NULL, 0, |
| params); |
| if (ZSTD_isError(cSize_1pass)) goto _output_error; |
| |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, compressionLevel) ); |
| { size_t const compressionResult = ZSTD_compress2(cctx, |
| compressedBuffer, compressedBufferSize, |
| CNBuffer, srcSize); |
| DISPLAYLEVEL(5, "simple=%zu vs %zu=advanced : ", cSize_1pass, compressionResult); |
| if (ZSTD_isError(compressionResult)) goto _output_error; |
| if (compressionResult != cSize_1pass) goto _output_error; |
| } } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* parameters order test */ |
| { size_t const inputSize = CNBuffSize / 2; |
| U64 xxh64; |
| |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| DISPLAYLEVEL(3, "test%3i : parameters in order : ", testNb++); |
| assert(cctx != NULL); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 2) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 18) ); |
| { size_t const compressedSize = ZSTD_compress2(cctx, |
| compressedBuffer, ZSTD_compressBound(inputSize), |
| CNBuffer, inputSize); |
| CHECK(compressedSize); |
| cSize = compressedSize; |
| xxh64 = XXH64(compressedBuffer, compressedSize, 0); |
| } |
| DISPLAYLEVEL(3, "OK (compress : %u -> %u bytes)\n", (unsigned)inputSize, (unsigned)cSize); |
| ZSTD_freeCCtx(cctx); |
| } |
| |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| DISPLAYLEVEL(3, "test%3i : parameters disordered : ", testNb++); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 18) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1) ); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 2) ); |
| { size_t const result = ZSTD_compress2(cctx, |
| compressedBuffer, ZSTD_compressBound(inputSize), |
| CNBuffer, inputSize); |
| CHECK(result); |
| if (result != cSize) goto _output_error; /* must result in same compressed result, hence same size */ |
| if (XXH64(compressedBuffer, result, 0) != xxh64) goto _output_error; /* must result in exactly same content, hence same hash */ |
| DISPLAYLEVEL(3, "OK (compress : %u -> %u bytes)\n", (unsigned)inputSize, (unsigned)result); |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| } |
| |
| /* advanced parameters for decompression */ |
| { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| assert(dctx != NULL); |
| |
| DISPLAYLEVEL(3, "test%3i : get dParameter bounds ", testNb++); |
| { ZSTD_bounds const bounds = ZSTD_dParam_getBounds(ZSTD_d_windowLogMax); |
| CHECK(bounds.error); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : wrong dParameter : ", testNb++); |
| { size_t const sr = ZSTD_DCtx_setParameter(dctx, (ZSTD_dParameter)999999, 0); |
| if (!ZSTD_isError(sr)) goto _output_error; |
| } |
| { ZSTD_bounds const bounds = ZSTD_dParam_getBounds((ZSTD_dParameter)999998); |
| if (!ZSTD_isError(bounds.error)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : out of bound dParameter : ", testNb++); |
| { size_t const sr = ZSTD_DCtx_setParameter(dctx, ZSTD_d_windowLogMax, 9999); |
| if (!ZSTD_isError(sr)) goto _output_error; |
| } |
| { size_t const sr = ZSTD_DCtx_setParameter(dctx, ZSTD_d_format, (ZSTD_format_e)888); |
| if (!ZSTD_isError(sr)) goto _output_error; |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_freeDCtx(dctx); |
| } |
| |
| |
| /* custom formats tests */ |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| size_t const inputSize = CNBuffSize / 2; /* won't cause pb with small dict size */ |
| assert(dctx != NULL); assert(cctx != NULL); |
| |
| /* basic block compression */ |
| DISPLAYLEVEL(3, "test%3i : magic-less format test : ", testNb++); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_format, ZSTD_f_zstd1_magicless) ); |
| { ZSTD_inBuffer in = { CNBuffer, inputSize, 0 }; |
| ZSTD_outBuffer out = { compressedBuffer, ZSTD_compressBound(inputSize), 0 }; |
| size_t const result = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end); |
| if (result != 0) goto _output_error; |
| if (in.pos != in.size) goto _output_error; |
| cSize = out.pos; |
| } |
| DISPLAYLEVEL(3, "OK (compress : %u -> %u bytes)\n", (unsigned)inputSize, (unsigned)cSize); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress normally (should fail) : ", testNb++); |
| { size_t const decodeResult = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (ZSTD_getErrorCode(decodeResult) != ZSTD_error_prefix_unknown) goto _output_error; |
| DISPLAYLEVEL(3, "OK : %s \n", ZSTD_getErrorName(decodeResult)); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : decompress of magic-less frame : ", testNb++); |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| CHECK( ZSTD_DCtx_setParameter(dctx, ZSTD_d_format, ZSTD_f_zstd1_magicless) ); |
| { ZSTD_frameHeader zfh; |
| size_t const zfhrt = ZSTD_getFrameHeader_advanced(&zfh, compressedBuffer, cSize, ZSTD_f_zstd1_magicless); |
| if (zfhrt != 0) goto _output_error; |
| } |
| /* one shot */ |
| { size_t const result = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (result != inputSize) goto _output_error; |
| DISPLAYLEVEL(3, "one-shot OK, "); |
| } |
| /* streaming */ |
| { ZSTD_inBuffer in = { compressedBuffer, cSize, 0 }; |
| ZSTD_outBuffer out = { decodedBuffer, CNBuffSize, 0 }; |
| size_t const result = ZSTD_decompressStream(dctx, &out, &in); |
| if (result != 0) goto _output_error; |
| if (in.pos != in.size) goto _output_error; |
| if (out.pos != inputSize) goto _output_error; |
| DISPLAYLEVEL(3, "streaming OK : regenerated %u bytes \n", (unsigned)out.pos); |
| } |
| |
| /* basic block compression */ |
| DISPLAYLEVEL(3, "test%3i : empty magic-less format test : ", testNb++); |
| CHECK( ZSTD_CCtx_setParameter(cctx, ZSTD_c_format, ZSTD_f_zstd1_magicless) ); |
| { ZSTD_inBuffer in = { CNBuffer, 0, 0 }; |
| ZSTD_outBuffer out = { compressedBuffer, ZSTD_compressBound(0), 0 }; |
| size_t const result = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end); |
| if (result != 0) goto _output_error; |
| if (in.pos != in.size) goto _output_error; |
| cSize = out.pos; |
| } |
| DISPLAYLEVEL(3, "OK (compress : %u -> %u bytes)\n", (unsigned)0, (unsigned)cSize); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress of empty magic-less frame : ", testNb++); |
| ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| CHECK( ZSTD_DCtx_setParameter(dctx, ZSTD_d_format, ZSTD_f_zstd1_magicless) ); |
| /* one shot */ |
| { size_t const result = ZSTD_decompressDCtx(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize); |
| if (result != 0) goto _output_error; |
| DISPLAYLEVEL(3, "one-shot OK, "); |
| } |
| /* streaming */ |
| { ZSTD_inBuffer in = { compressedBuffer, cSize, 0 }; |
| ZSTD_outBuffer out = { decodedBuffer, CNBuffSize, 0 }; |
| size_t const result = ZSTD_decompressStream(dctx, &out, &in); |
| if (result != 0) goto _output_error; |
| if (in.pos != in.size) goto _output_error; |
| if (out.pos != 0) goto _output_error; |
| DISPLAYLEVEL(3, "streaming OK : regenerated %u bytes \n", (unsigned)out.pos); |
| } |
| |
| ZSTD_freeCCtx(cctx); |
| ZSTD_freeDCtx(dctx); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : Decompression parameter reset test : ", testNb++); |
| { |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| /* Attempt to future proof this to new parameters. */ |
| int const maxParam = 2000; |
| int param; |
| if (ZSTD_d_experimentalParam3 > maxParam) goto _output_error; |
| for (param = 0; param < maxParam; ++param) { |
| ZSTD_dParameter dParam = (ZSTD_dParameter)param; |
| ZSTD_bounds bounds = ZSTD_dParam_getBounds(dParam); |
| int value1; |
| int value2; |
| int check; |
| if (ZSTD_isError(bounds.error)) |
| continue; |
| CHECK(ZSTD_DCtx_getParameter(dctx, dParam, &value1)); |
| value2 = (value1 != bounds.lowerBound) ? bounds.lowerBound : bounds.upperBound; |
| CHECK(ZSTD_DCtx_setParameter(dctx, dParam, value2)); |
| CHECK(ZSTD_DCtx_getParameter(dctx, dParam, &check)); |
| if (check != value2) goto _output_error; |
| CHECK(ZSTD_DCtx_reset(dctx, ZSTD_reset_parameters)); |
| CHECK(ZSTD_DCtx_getParameter(dctx, dParam, &check)); |
| if (check != value1) goto _output_error; |
| } |
| ZSTD_freeDCtx(dctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* block API tests */ |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| static const size_t dictSize = 65 KB; |
| static const size_t blockSize = 100 KB; /* won't cause pb with small dict size */ |
| size_t cSize2; |
| assert(cctx != NULL); assert(dctx != NULL); |
| |
| /* basic block compression */ |
| DISPLAYLEVEL(3, "test%3i : Block compression test : ", testNb++); |
| CHECK( ZSTD_compressBegin(cctx, 5) ); |
| CHECK( ZSTD_getBlockSize(cctx) >= blockSize); |
| CHECK_VAR(cSize, ZSTD_compressBlock(cctx, compressedBuffer, ZSTD_compressBound(blockSize), CNBuffer, blockSize) ); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Block decompression test : ", testNb++); |
| CHECK( ZSTD_decompressBegin(dctx) ); |
| { CHECK_NEWV(r, ZSTD_decompressBlock(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize) ); |
| if (r != blockSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* very long stream of block compression */ |
| DISPLAYLEVEL(3, "test%3i : Huge block streaming compression test : ", testNb++); |
| CHECK( ZSTD_compressBegin(cctx, -199) ); /* we just want to quickly overflow internal U32 index */ |
| CHECK( ZSTD_getBlockSize(cctx) >= blockSize); |
| { U64 const toCompress = 5000000000ULL; /* > 4 GB */ |
| U64 compressed = 0; |
| while (compressed < toCompress) { |
| size_t const blockCSize = ZSTD_compressBlock(cctx, compressedBuffer, ZSTD_compressBound(blockSize), CNBuffer, blockSize); |
| assert(blockCSize != 0); |
| if (ZSTD_isError(blockCSize)) goto _output_error; |
| compressed += blockCSize; |
| } } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* dictionary block compression */ |
| DISPLAYLEVEL(3, "test%3i : Dictionary Block compression test : ", testNb++); |
| CHECK( ZSTD_compressBegin_usingDict(cctx, CNBuffer, dictSize, 5) ); |
| CHECK_VAR(cSize, ZSTD_compressBlock(cctx, compressedBuffer, ZSTD_compressBound(blockSize), (char*)CNBuffer+dictSize, blockSize)); |
| RDG_genBuffer((char*)CNBuffer+dictSize+blockSize, blockSize, 0.0, 0.0, seed); /* create a non-compressible second block */ |
| { CHECK_NEWV(r, ZSTD_compressBlock(cctx, (char*)compressedBuffer+cSize, ZSTD_compressBound(blockSize), (char*)CNBuffer+dictSize+blockSize, blockSize) ); /* for cctx history consistency */ |
| assert(r == 0); /* non-compressible block */ } |
| memcpy((char*)compressedBuffer+cSize, (char*)CNBuffer+dictSize+blockSize, blockSize); /* send non-compressed block (without header) */ |
| CHECK_VAR(cSize2, ZSTD_compressBlock(cctx, (char*)compressedBuffer+cSize+blockSize, ZSTD_compressBound(blockSize), |
| (char*)CNBuffer+dictSize+2*blockSize, blockSize)); |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Dictionary Block decompression test : ", testNb++); |
| CHECK( ZSTD_decompressBegin_usingDict(dctx, CNBuffer, dictSize) ); |
| { CHECK_NEWV( r, ZSTD_decompressBlock(dctx, decodedBuffer, blockSize, compressedBuffer, cSize) ); |
| if (r != blockSize) { |
| DISPLAYLEVEL(1, "ZSTD_decompressBlock() with _usingDict() fails : %u, instead of %u expected \n", (unsigned)r, (unsigned)blockSize); |
| goto _output_error; |
| } } |
| memcpy((char*)decodedBuffer+blockSize, (char*)compressedBuffer+cSize, blockSize); |
| ZSTD_insertBlock(dctx, (char*)decodedBuffer+blockSize, blockSize); /* insert non-compressed block into dctx history */ |
| { CHECK_NEWV( r, ZSTD_decompressBlock(dctx, (char*)decodedBuffer+2*blockSize, blockSize, (char*)compressedBuffer+cSize+blockSize, cSize2) ); |
| if (r != blockSize) { |
| DISPLAYLEVEL(1, "ZSTD_decompressBlock() with _usingDict() and after insertBlock() fails : %u, instead of %u expected \n", (unsigned)r, (unsigned)blockSize); |
| goto _output_error; |
| } } |
| assert(memcpy((char*)CNBuffer+dictSize, decodedBuffer, blockSize*3)); /* ensure regenerated content is identical to origin */ |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : Block compression with CDict : ", testNb++); |
| { ZSTD_CDict* const cdict = ZSTD_createCDict(CNBuffer, dictSize, 3); |
| if (cdict==NULL) goto _output_error; |
| CHECK( ZSTD_compressBegin_usingCDict(cctx, cdict) ); |
| CHECK( ZSTD_compressBlock(cctx, compressedBuffer, ZSTD_compressBound(blockSize), (char*)CNBuffer+dictSize, blockSize) ); |
| ZSTD_freeCDict(cdict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| ZSTD_freeCCtx(cctx); |
| ZSTD_freeDCtx(dctx); |
| } |
| |
| /* long rle test */ |
| { size_t sampleSize = 0; |
| size_t expectedCompressedSize = 39; /* block 1, 2: compressed, block 3: RLE, zstd 1.4.4 */ |
| DISPLAYLEVEL(3, "test%3i : Long RLE test : ", testNb++); |
| memset((char*)CNBuffer+sampleSize, 'B', 256 KB - 1); |
| sampleSize += 256 KB - 1; |
| memset((char*)CNBuffer+sampleSize, 'A', 96 KB); |
| sampleSize += 96 KB; |
| cSize = ZSTD_compress(compressedBuffer, ZSTD_compressBound(sampleSize), CNBuffer, sampleSize, 1); |
| if (ZSTD_isError(cSize) || cSize > expectedCompressedSize) goto _output_error; |
| { CHECK_NEWV(regenSize, ZSTD_decompress(decodedBuffer, sampleSize, compressedBuffer, cSize)); |
| if (regenSize!=sampleSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| } |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_generateSequences decode from sequences test : ", testNb++); |
| { |
| size_t srcSize = 150 KB; |
| BYTE* src = (BYTE*)CNBuffer; |
| BYTE* decoded = (BYTE*)compressedBuffer; |
| |
| ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| ZSTD_Sequence* seqs = (ZSTD_Sequence*)malloc(srcSize * sizeof(ZSTD_Sequence)); |
| size_t seqsSize; |
| |
| if (seqs == NULL) goto _output_error; |
| assert(cctx != NULL); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19); |
| /* Populate src with random data */ |
| RDG_genBuffer(CNBuffer, srcSize, compressibility, 0.5, seed); |
| |
| /* Test with block delimiters roundtrip */ |
| seqsSize = ZSTD_generateSequences(cctx, seqs, srcSize, src, srcSize); |
| FUZ_decodeSequences(decoded, seqs, seqsSize, src, srcSize, ZSTD_sf_explicitBlockDelimiters); |
| assert(!memcmp(CNBuffer, compressedBuffer, srcSize)); |
| |
| /* Test no block delimiters roundtrip */ |
| seqsSize = ZSTD_mergeBlockDelimiters(seqs, seqsSize); |
| FUZ_decodeSequences(decoded, seqs, seqsSize, src, srcSize, ZSTD_sf_noBlockDelimiters); |
| assert(!memcmp(CNBuffer, compressedBuffer, srcSize)); |
| |
| ZSTD_freeCCtx(cctx); |
| free(seqs); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : ZSTD_getSequences followed by ZSTD_compressSequences : ", testNb++); |
| { |
| size_t srcSize = 500 KB; |
| BYTE* src = (BYTE*)CNBuffer; |
| BYTE* dst = (BYTE*)compressedBuffer; |
| size_t dstSize = ZSTD_compressBound(srcSize); |
| size_t decompressSize = srcSize; |
| char* decompressBuffer = (char*)malloc(decompressSize); |
| size_t compressedSize; |
| size_t dSize; |
| |
| ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| ZSTD_Sequence* seqs = (ZSTD_Sequence*)malloc(srcSize * sizeof(ZSTD_Sequence)); |
| size_t seqsSize; |
| |
| if (seqs == NULL) goto _output_error; |
| assert(cctx != NULL); |
| |
| /* Populate src with random data */ |
| RDG_genBuffer(CNBuffer, srcSize, compressibility, 0., seed); |
| |
| /* Test with block delimiters roundtrip */ |
| seqsSize = ZSTD_generateSequences(cctx, seqs, srcSize, src, srcSize); |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_explicitBlockDelimiters); |
| compressedSize = ZSTD_compressSequences(cctx, dst, dstSize, seqs, seqsSize, src, srcSize); |
| if (ZSTD_isError(compressedSize)) { |
| DISPLAY("Error in sequence compression with block delims\n"); |
| goto _output_error; |
| } |
| dSize = ZSTD_decompress(decompressBuffer, decompressSize, dst, compressedSize); |
| if (ZSTD_isError(dSize)) { |
| DISPLAY("Error in sequence compression roundtrip with block delims\n"); |
| goto _output_error; |
| } |
| assert(!memcmp(decompressBuffer, src, srcSize)); |
| |
| /* Test with no block delimiters roundtrip */ |
| seqsSize = ZSTD_mergeBlockDelimiters(seqs, seqsSize); |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_noBlockDelimiters); |
| compressedSize = ZSTD_compressSequences(cctx, dst, dstSize, seqs, seqsSize, src, srcSize); |
| if (ZSTD_isError(compressedSize)) { |
| DISPLAY("Error in sequence compression with no block delims\n"); |
| goto _output_error; |
| } |
| dSize = ZSTD_decompress(decompressBuffer, decompressSize, dst, compressedSize); |
| if (ZSTD_isError(dSize)) { |
| DISPLAY("Error in sequence compression roundtrip with no block delims\n"); |
| goto _output_error; |
| } |
| assert(!memcmp(decompressBuffer, src, srcSize)); |
| |
| ZSTD_freeCCtx(cctx); |
| free(decompressBuffer); |
| free(seqs); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* Multiple blocks of zeros test */ |
| #define LONGZEROSLENGTH 1000000 /* 1MB of zeros */ |
| DISPLAYLEVEL(3, "test%3i : compress %u zeroes : ", testNb++, LONGZEROSLENGTH); |
| memset(CNBuffer, 0, LONGZEROSLENGTH); |
| CHECK_VAR(cSize, ZSTD_compress(compressedBuffer, ZSTD_compressBound(LONGZEROSLENGTH), CNBuffer, LONGZEROSLENGTH, 1) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/LONGZEROSLENGTH*100); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress %u zeroes : ", testNb++, LONGZEROSLENGTH); |
| { CHECK_NEWV(r, ZSTD_decompress(decodedBuffer, LONGZEROSLENGTH, compressedBuffer, cSize) ); |
| if (r != LONGZEROSLENGTH) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* All zeroes test (test bug #137) */ |
| #define ZEROESLENGTH 100 |
| DISPLAYLEVEL(3, "test%3i : compress %u zeroes : ", testNb++, ZEROESLENGTH); |
| memset(CNBuffer, 0, ZEROESLENGTH); |
| CHECK_VAR(cSize, ZSTD_compress(compressedBuffer, ZSTD_compressBound(ZEROESLENGTH), CNBuffer, ZEROESLENGTH, 1) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/ZEROESLENGTH*100); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress %u zeroes : ", testNb++, ZEROESLENGTH); |
| { CHECK_NEWV(r, ZSTD_decompress(decodedBuffer, ZEROESLENGTH, compressedBuffer, cSize) ); |
| if (r != ZEROESLENGTH) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* nbSeq limit test */ |
| #define _3BYTESTESTLENGTH 131000 |
| #define NB3BYTESSEQLOG 9 |
| #define NB3BYTESSEQ (1 << NB3BYTESSEQLOG) |
| #define NB3BYTESSEQMASK (NB3BYTESSEQ-1) |
| /* creates a buffer full of 3-bytes sequences */ |
| { BYTE _3BytesSeqs[NB3BYTESSEQ][3]; |
| U32 rSeed = 1; |
| |
| /* create batch of 3-bytes sequences */ |
| { int i; |
| for (i=0; i < NB3BYTESSEQ; i++) { |
| _3BytesSeqs[i][0] = (BYTE)(FUZ_rand(&rSeed) & 255); |
| _3BytesSeqs[i][1] = (BYTE)(FUZ_rand(&rSeed) & 255); |
| _3BytesSeqs[i][2] = (BYTE)(FUZ_rand(&rSeed) & 255); |
| } } |
| |
| /* randomly fills CNBuffer with prepared 3-bytes sequences */ |
| { int i; |
| for (i=0; i < _3BYTESTESTLENGTH; i += 3) { /* note : CNBuffer size > _3BYTESTESTLENGTH+3 */ |
| U32 const id = FUZ_rand(&rSeed) & NB3BYTESSEQMASK; |
| ((BYTE*)CNBuffer)[i+0] = _3BytesSeqs[id][0]; |
| ((BYTE*)CNBuffer)[i+1] = _3BytesSeqs[id][1]; |
| ((BYTE*)CNBuffer)[i+2] = _3BytesSeqs[id][2]; |
| } } } |
| DISPLAYLEVEL(3, "test%3i : growing nbSeq : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const maxNbSeq = _3BYTESTESTLENGTH / 3; |
| size_t const bound = ZSTD_compressBound(_3BYTESTESTLENGTH); |
| size_t nbSeq = 1; |
| while (nbSeq <= maxNbSeq) { |
| CHECK(ZSTD_compressCCtx(cctx, compressedBuffer, bound, CNBuffer, nbSeq * 3, 19)); |
| /* Check every sequence for the first 100, then skip more rapidly. */ |
| if (nbSeq < 100) { |
| ++nbSeq; |
| } else { |
| nbSeq += (nbSeq >> 2); |
| } |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : compress lots 3-bytes sequences : ", testNb++); |
| CHECK_VAR(cSize, ZSTD_compress(compressedBuffer, ZSTD_compressBound(_3BYTESTESTLENGTH), |
| CNBuffer, _3BYTESTESTLENGTH, 19) ); |
| DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/_3BYTESTESTLENGTH*100); |
| |
| DISPLAYLEVEL(3, "test%3i : decompress lots 3-bytes sequence : ", testNb++); |
| { CHECK_NEWV(r, ZSTD_decompress(decodedBuffer, _3BYTESTESTLENGTH, compressedBuffer, cSize) ); |
| if (r != _3BYTESTESTLENGTH) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| |
| DISPLAYLEVEL(3, "test%3i : growing literals buffer : ", testNb++); |
| RDG_genBuffer(CNBuffer, CNBuffSize, 0.0, 0.1, seed); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| size_t const bound = ZSTD_compressBound(CNBuffSize); |
| size_t size = 1; |
| while (size <= CNBuffSize) { |
| CHECK(ZSTD_compressCCtx(cctx, compressedBuffer, bound, CNBuffer, size, 3)); |
| /* Check every size for the first 100, then skip more rapidly. */ |
| if (size < 100) { |
| ++size; |
| } else { |
| size += (size >> 2); |
| } |
| } |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : incompressible data and ill suited dictionary : ", testNb++); |
| { /* Train a dictionary on low characters */ |
| size_t dictSize = 16 KB; |
| void* const dictBuffer = malloc(dictSize); |
| size_t const totalSampleSize = 1 MB; |
| size_t const sampleUnitSize = 8 KB; |
| U32 const nbSamples = (U32)(totalSampleSize / sampleUnitSize); |
| size_t* const samplesSizes = (size_t*) malloc(nbSamples * sizeof(size_t)); |
| if (!dictBuffer || !samplesSizes) goto _output_error; |
| { U32 u; for (u=0; u<nbSamples; u++) samplesSizes[u] = sampleUnitSize; } |
| dictSize = ZDICT_trainFromBuffer(dictBuffer, dictSize, CNBuffer, samplesSizes, nbSamples); |
| if (ZDICT_isError(dictSize)) goto _output_error; |
| /* Reverse the characters to make the dictionary ill suited */ |
| { U32 u; |
| for (u = 0; u < CNBuffSize; ++u) { |
| ((BYTE*)CNBuffer)[u] = 255 - ((BYTE*)CNBuffer)[u]; |
| } |
| } |
| { /* Compress the data */ |
| size_t const inputSize = 500; |
| size_t const outputSize = ZSTD_compressBound(inputSize); |
| void* const outputBuffer = malloc(outputSize); |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| if (!outputBuffer || !cctx) goto _output_error; |
| CHECK(ZSTD_compress_usingDict(cctx, outputBuffer, outputSize, CNBuffer, inputSize, dictBuffer, dictSize, 1)); |
| free(outputBuffer); |
| ZSTD_freeCCtx(cctx); |
| } |
| |
| free(dictBuffer); |
| free(samplesSizes); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| |
| /* findFrameCompressedSize on skippable frames */ |
| DISPLAYLEVEL(3, "test%3i : frame compressed size of skippable frame : ", testNb++); |
| { const char* frame = "\x50\x2a\x4d\x18\x05\x0\x0\0abcde"; |
| size_t const frameSrcSize = 13; |
| if (ZSTD_findFrameCompressedSize(frame, frameSrcSize) != frameSrcSize) goto _output_error; } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| /* error string tests */ |
| DISPLAYLEVEL(3, "test%3i : testing ZSTD error code strings : ", testNb++); |
| if (strcmp("No error detected", ZSTD_getErrorName((ZSTD_ErrorCode)(0-ZSTD_error_no_error))) != 0) goto _output_error; |
| if (strcmp("No error detected", ZSTD_getErrorString(ZSTD_error_no_error)) != 0) goto _output_error; |
| if (strcmp("Unspecified error code", ZSTD_getErrorString((ZSTD_ErrorCode)(0-ZSTD_error_GENERIC))) != 0) goto _output_error; |
| if (strcmp("Error (generic)", ZSTD_getErrorName((size_t)0-ZSTD_error_GENERIC)) != 0) goto _output_error; |
| if (strcmp("Error (generic)", ZSTD_getErrorString(ZSTD_error_GENERIC)) != 0) goto _output_error; |
| if (strcmp("No error detected", ZSTD_getErrorName(ZSTD_error_GENERIC)) != 0) goto _output_error; |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : testing ZSTD dictionary sizes : ", testNb++); |
| RDG_genBuffer(CNBuffer, CNBuffSize, compressibility, 0., seed); |
| { |
| size_t const size = MIN(128 KB, CNBuffSize); |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_CDict* const lgCDict = ZSTD_createCDict(CNBuffer, size, 1); |
| ZSTD_CDict* const smCDict = ZSTD_createCDict(CNBuffer, 1 KB, 1); |
| ZSTD_frameHeader lgHeader; |
| ZSTD_frameHeader smHeader; |
| |
| CHECK_Z(ZSTD_compress_usingCDict(cctx, compressedBuffer, compressedBufferSize, CNBuffer, size, lgCDict)); |
| CHECK_Z(ZSTD_getFrameHeader(&lgHeader, compressedBuffer, compressedBufferSize)); |
| CHECK_Z(ZSTD_compress_usingCDict(cctx, compressedBuffer, compressedBufferSize, CNBuffer, size, smCDict)); |
| CHECK_Z(ZSTD_getFrameHeader(&smHeader, compressedBuffer, compressedBufferSize)); |
| |
| if (lgHeader.windowSize != smHeader.windowSize) goto _output_error; |
| |
| ZSTD_freeCDict(smCDict); |
| ZSTD_freeCDict(lgCDict); |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : testing FSE_normalizeCount() PR#1255: ", testNb++); |
| { |
| short norm[32]; |
| unsigned count[32]; |
| unsigned const tableLog = 5; |
| size_t const nbSeq = 32; |
| unsigned const maxSymbolValue = 31; |
| size_t i; |
| |
| for (i = 0; i < 32; ++i) |
| count[i] = 1; |
| /* Calling FSE_normalizeCount() on a uniform distribution should not |
| * cause a division by zero. |
| */ |
| FSE_normalizeCount(norm, tableLog, count, nbSeq, maxSymbolValue, /* useLowProbCount */ 1); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| #ifdef ZSTD_MULTITHREAD |
| DISPLAYLEVEL(3, "test%3i : passing wrong full dict should fail on compressStream2 refPrefix ", testNb++); |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| size_t const srcSize = 1 MB + 5; /* A little more than ZSTDMT_JOBSIZE_MIN */ |
| size_t const dstSize = ZSTD_compressBound(srcSize); |
| void* const src = CNBuffer; |
| void* const dst = compressedBuffer; |
| void* dict = (void*)malloc(srcSize); |
| |
| RDG_genBuffer(src, srcSize, compressibility, 0.5, seed); |
| RDG_genBuffer(dict, srcSize, compressibility, 0., seed); |
| |
| /* Make sure there is no ZSTD_MAGIC_NUMBER */ |
| memset(dict, 0, sizeof(U32)); |
| |
| /* something more than 1 */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 2)); |
| /* lie and claim this is a full dict */ |
| CHECK_Z(ZSTD_CCtx_refPrefix_advanced(cctx, dict, srcSize, ZSTD_dct_fullDict)); |
| |
| { ZSTD_outBuffer out = {dst, dstSize, 0}; |
| ZSTD_inBuffer in = {src, srcSize, 0}; |
| /* should fail because its not a full dict like we said it was */ |
| assert(ZSTD_isError(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush))); |
| } |
| |
| ZSTD_freeCCtx(cctx); |
| free(dict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "test%3i : small dictionary with multithreading and LDM ", testNb++); |
| { ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| size_t const srcSize = 1 MB + 5; /* A little more than ZSTDMT_JOBSIZE_MIN */ |
| size_t const dictSize = 10; |
| size_t const dstSize = ZSTD_compressBound(srcSize); |
| void* const src = CNBuffer; |
| void* const dst = compressedBuffer; |
| void* dict = (void*)malloc(dictSize); |
| |
| RDG_genBuffer(src, srcSize, compressibility, 0.5, seed); |
| RDG_genBuffer(dict, dictSize, compressibility, 0., seed); |
| |
| /* Make sure there is no ZSTD_MAGIC_NUMBER */ |
| memset(dict, 0, sizeof(U32)); |
| |
| /* Enable MT, LDM, and use refPrefix() for a small dict */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 2)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)); |
| CHECK_Z(ZSTD_CCtx_refPrefix(cctx, dict, dictSize)); |
| |
| CHECK_Z(ZSTD_compress2(cctx, dst, dstSize, src, srcSize)); |
| |
| ZSTD_freeCCtx(cctx); |
| free(dict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| #endif |
| |
| _end: |
| free(CNBuffer); |
| free(compressedBuffer); |
| free(decodedBuffer); |
| return testResult; |
| |
| _output_error: |
| testResult = 1; |
| DISPLAY("Error detected in Unit tests ! \n"); |
| goto _end; |
| } |
| |
| static int longUnitTests(U32 const seed, double compressibility) |
| { |
| size_t const CNBuffSize = 5 MB; |
| void* const CNBuffer = malloc(CNBuffSize); |
| size_t const compressedBufferSize = ZSTD_compressBound(CNBuffSize); |
| void* const compressedBuffer = malloc(compressedBufferSize); |
| void* const decodedBuffer = malloc(CNBuffSize); |
| int testResult = 0; |
| unsigned testNb=0; |
| size_t cSize; |
| |
| /* Create compressible noise */ |
| if (!CNBuffer || !compressedBuffer || !decodedBuffer) { |
| DISPLAY("Not enough memory, aborting\n"); |
| testResult = 1; |
| goto _end; |
| } |
| RDG_genBuffer(CNBuffer, CNBuffSize, compressibility, 0., seed); |
| |
| /* note : this test is rather long, it would be great to find a way to speed up its execution */ |
| DISPLAYLEVEL(3, "longtest%3i : table cleanliness through index reduction : ", testNb++); |
| { int cLevel; |
| size_t approxIndex = 0; |
| size_t maxIndex = ((3U << 29) + (1U << ZSTD_WINDOWLOG_MAX)); /* ZSTD_CURRENT_MAX from zstd_compress_internal.h */ |
| |
| /* Provision enough space in a static context so that we can do all |
| * this without ever reallocating, which would reset the indices. */ |
| size_t const staticCCtxSize = ZSTD_estimateCStreamSize(22); |
| void* const staticCCtxBuffer = malloc(staticCCtxSize); |
| ZSTD_CCtx* const cctx = ZSTD_initStaticCCtx(staticCCtxBuffer, staticCCtxSize); |
| |
| /* bump the indices so the following compressions happen at high |
| * indices. */ |
| { ZSTD_outBuffer out = { compressedBuffer, compressedBufferSize, 0 }; |
| ZSTD_inBuffer in = { CNBuffer, CNBuffSize, 0 }; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, -500)); |
| while (approxIndex <= (maxIndex / 4) * 3) { |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| approxIndex += in.pos; |
| CHECK(in.pos == in.size); |
| in.pos = 0; |
| out.pos = 0; |
| } |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| } |
| |
| /* spew a bunch of stuff into the table area */ |
| for (cLevel = 1; cLevel <= 22; cLevel++) { |
| ZSTD_outBuffer out = { compressedBuffer, compressedBufferSize / (unsigned)cLevel, 0 }; |
| ZSTD_inBuffer in = { CNBuffer, CNBuffSize, 0 }; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, cLevel)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| approxIndex += in.pos; |
| } |
| |
| /* now crank the indices so we overflow */ |
| { ZSTD_outBuffer out = { compressedBuffer, compressedBufferSize, 0 }; |
| ZSTD_inBuffer in = { CNBuffer, CNBuffSize, 0 }; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, -500)); |
| while (approxIndex <= maxIndex) { |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| approxIndex += in.pos; |
| CHECK(in.pos == in.size); |
| in.pos = 0; |
| out.pos = 0; |
| } |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| } |
| |
| /* do a bunch of compressions again in low indices and ensure we don't |
| * hit untracked invalid indices */ |
| for (cLevel = 1; cLevel <= 22; cLevel++) { |
| ZSTD_outBuffer out = { compressedBuffer, compressedBufferSize / (unsigned)cLevel, 0 }; |
| ZSTD_inBuffer in = { CNBuffer, CNBuffSize, 0 }; |
| ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, cLevel)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| approxIndex += in.pos; |
| } |
| |
| free(staticCCtxBuffer); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "longtest%3i : testing ldm no regressions in size for opt parser : ", testNb++); |
| { |
| size_t cSizeLdm; |
| size_t cSizeNoLdm; |
| ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| |
| RDG_genBuffer(CNBuffer, CNBuffSize, 0.5, 0.5, seed); |
| |
| /* Enable checksum to verify round trip. */ |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19)); |
| |
| /* Round trip once with ldm. */ |
| cSizeLdm = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK_Z(cSizeLdm); |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSizeLdm)); |
| |
| 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_enableLongDistanceMatching, 0)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19)); |
| |
| /* Round trip once without ldm. */ |
| cSizeNoLdm = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK_Z(cSizeNoLdm); |
| CHECK_Z(ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSizeNoLdm)); |
| |
| if (cSizeLdm > cSizeNoLdm) { |
| DISPLAY("Using long mode should not cause regressions for btopt+\n"); |
| testResult = 1; |
| goto _end; |
| } |
| |
| ZSTD_freeCCtx(cctx); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| DISPLAYLEVEL(3, "longtest%3i : testing cdict compression with different attachment strategies : ", testNb++); |
| { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| size_t dictSize = CNBuffSize; |
| void* dict = (void*)malloc(dictSize); |
| ZSTD_CCtx_params* cctx_params = ZSTD_createCCtxParams(); |
| ZSTD_dictAttachPref_e const attachPrefs[] = { |
| ZSTD_dictDefaultAttach, |
| ZSTD_dictForceAttach, |
| ZSTD_dictForceCopy, |
| ZSTD_dictForceLoad, |
| ZSTD_dictDefaultAttach, |
| ZSTD_dictForceAttach, |
| ZSTD_dictForceCopy, |
| ZSTD_dictForceLoad |
| }; |
| int const enableDedicatedDictSearch[] = {0, 0, 0, 0, 1, 1, 1, 1}; |
| int cLevel; |
| int i; |
| |
| RDG_genBuffer(dict, dictSize, 0.5, 0.5, seed); |
| RDG_genBuffer(CNBuffer, CNBuffSize, 0.6, 0.6, seed); |
| |
| CHECK(cctx_params != NULL); |
| |
| for (dictSize = CNBuffSize; dictSize; dictSize = dictSize >> 3) { |
| DISPLAYLEVEL(3, "\n Testing with dictSize %u ", (U32)dictSize); |
| for (cLevel = 4; cLevel < 13; cLevel++) { |
| for (i = 0; i < 8; ++i) { |
| ZSTD_dictAttachPref_e const attachPref = attachPrefs[i]; |
| int const enableDDS = enableDedicatedDictSearch[i]; |
| ZSTD_CDict* cdict; |
| |
| DISPLAYLEVEL(5, "\n dictSize %u cLevel %d iter %d ", (U32)dictSize, cLevel, i); |
| |
| ZSTD_CCtxParams_init(cctx_params, cLevel); |
| CHECK_Z(ZSTD_CCtxParams_setParameter(cctx_params, ZSTD_c_enableDedicatedDictSearch, enableDDS)); |
| |
| cdict = ZSTD_createCDict_advanced2(dict, dictSize, ZSTD_dlm_byRef, ZSTD_dct_auto, cctx_params, ZSTD_defaultCMem); |
| CHECK(cdict != NULL); |
| |
| CHECK_Z(ZSTD_CCtx_refCDict(cctx, cdict)); |
| CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_forceAttachDict, attachPref)); |
| |
| cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize); |
| CHECK_Z(cSize); |
| CHECK_Z(ZSTD_decompress_usingDict(dctx, decodedBuffer, CNBuffSize, compressedBuffer, cSize, dict, dictSize)); |
| |
| DISPLAYLEVEL(5, "compressed to %u bytes ", (U32)cSize); |
| |
| CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| ZSTD_freeCDict(cdict); |
| } } } |
| |
| ZSTD_freeCCtx(cctx); |
| ZSTD_freeDCtx(dctx); |
| ZSTD_freeCCtxParams(cctx_params); |
| free(dict); |
| } |
| DISPLAYLEVEL(3, "OK \n"); |
| |
| _end: |
| free(CNBuffer); |
| free(compressedBuffer); |
| free(decodedBuffer); |
| return testResult; |
| |
| _output_error: |
| testResult = 1; |
| DISPLAY("Error detected in Unit tests ! \n"); |
| goto _end; |
| } |
| |
| |
| 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; |
| } |
| return u; |
| } |
| |
| |
| static ZSTD_parameters FUZ_makeParams(ZSTD_compressionParameters cParams, ZSTD_frameParameters fParams) |
| { |
| ZSTD_parameters params; |
| params.cParams = cParams; |
| params.fParams = fParams; |
| return params; |
| } |
| |
| 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); |
| } |
| |
| #undef CHECK |
| #define CHECK(cond, ...) { \ |
| if (cond) { \ |
| DISPLAY("Error => "); \ |
| DISPLAY(__VA_ARGS__); \ |
| DISPLAY(" (seed %u, test nb %u) \n", (unsigned)seed, testNb); \ |
| goto _output_error; \ |
| } } |
| |
| #undef CHECK_Z |
| #define CHECK_Z(f) { \ |
| size_t const err = f; \ |
| if (ZSTD_isError(err)) { \ |
| DISPLAY("Error => %s : %s ", \ |
| #f, ZSTD_getErrorName(err)); \ |
| DISPLAY(" (seed %u, test nb %u) \n", (unsigned)seed, testNb); \ |
| goto _output_error; \ |
| } } |
| |
| |
| static int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, U32 const maxDurationS, double compressibility, int bigTests) |
| { |
| static const U32 maxSrcLog = 23; |
| static const U32 maxSampleLog = 22; |
| size_t const srcBufferSize = (size_t)1<<maxSrcLog; |
| size_t const dstBufferSize = (size_t)1<<maxSampleLog; |
| size_t const cBufferSize = ZSTD_compressBound(dstBufferSize); |
| BYTE* cNoiseBuffer[5]; |
| BYTE* const cBuffer = (BYTE*) malloc (cBufferSize); |
| BYTE* const dstBuffer = (BYTE*) malloc (dstBufferSize); |
| BYTE* const mirrorBuffer = (BYTE*) malloc (dstBufferSize); |
| ZSTD_CCtx* const refCtx = ZSTD_createCCtx(); |
| ZSTD_CCtx* const ctx = ZSTD_createCCtx(); |
| ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| U32 result = 0; |
| unsigned testNb = 0; |
| U32 coreSeed = seed; |
| UTIL_time_t const startClock = UTIL_getTime(); |
| U64 const maxClockSpan = maxDurationS * SEC_TO_MICRO; |
| int const cLevelLimiter = bigTests ? 3 : 2; |
| |
| /* allocation */ |
| 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] |
| || !dstBuffer || !mirrorBuffer || !cBuffer || !refCtx || !ctx || !dctx, |
| "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 */ |
| |
| /* catch up testNb */ |
| for (testNb=1; testNb < startTest; testNb++) FUZ_rand(&coreSeed); |
| |
| /* main test loop */ |
| for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < maxClockSpan); testNb++ ) { |
| BYTE* srcBuffer; /* jumping pointer */ |
| U32 lseed; |
| size_t sampleSize, maxTestSize, totalTestSize; |
| size_t cSize, totalCSize, totalGenSize; |
| U64 crcOrig; |
| BYTE* sampleBuffer; |
| const BYTE* dict; |
| size_t dictSize; |
| |
| /* notification */ |
| if (nbTests >= testNb) { DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); } |
| else { DISPLAYUPDATE(2, "\r%6u ", testNb); } |
| |
| FUZ_rand(&coreSeed); |
| { U32 const prime1 = 2654435761U; lseed = coreSeed ^ prime1; } |
| |
| /* 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]; |
| } |
| |
| /* select src segment */ |
| sampleSize = FUZ_randomLength(&lseed, maxSampleLog); |
| |
| /* create sample buffer (to catch read error with valgrind & sanitizers) */ |
| sampleBuffer = (BYTE*)malloc(sampleSize); |
| CHECK(sampleBuffer==NULL, "not enough memory for sample buffer"); |
| { size_t const sampleStart = FUZ_rand(&lseed) % (srcBufferSize - sampleSize); |
| memcpy(sampleBuffer, srcBuffer + sampleStart, sampleSize); } |
| crcOrig = XXH64(sampleBuffer, sampleSize, 0); |
| |
| /* compression tests */ |
| { int const cLevelPositive = (int) |
| ( FUZ_rand(&lseed) % |
| ((U32)ZSTD_maxCLevel() - (FUZ_highbit32((U32)sampleSize) / (U32)cLevelLimiter)) ) |
| + 1; |
| int const cLevel = ((FUZ_rand(&lseed) & 15) == 3) ? |
| - (int)((FUZ_rand(&lseed) & 7) + 1) : /* test negative cLevel */ |
| cLevelPositive; |
| DISPLAYLEVEL(5, "fuzzer t%u: Simple compression test (level %i) \n", testNb, cLevel); |
| cSize = ZSTD_compressCCtx(ctx, cBuffer, cBufferSize, sampleBuffer, sampleSize, cLevel); |
| CHECK(ZSTD_isError(cSize), "ZSTD_compressCCtx failed : %s", ZSTD_getErrorName(cSize)); |
| |
| /* compression failure test : too small dest buffer */ |
| assert(cSize > 3); |
| { const size_t missing = (FUZ_rand(&lseed) % (cSize-2)) + 1; |
| const size_t tooSmallSize = cSize - missing; |
| const unsigned endMark = 0x4DC2B1A9; |
| memcpy(dstBuffer+tooSmallSize, &endMark, sizeof(endMark)); |
| DISPLAYLEVEL(5, "fuzzer t%u: compress into too small buffer of size %u (missing %u bytes) \n", |
| testNb, (unsigned)tooSmallSize, (unsigned)missing); |
| { size_t const errorCode = ZSTD_compressCCtx(ctx, dstBuffer, tooSmallSize, sampleBuffer, sampleSize, cLevel); |
| CHECK(ZSTD_getErrorCode(errorCode) != ZSTD_error_dstSize_tooSmall, "ZSTD_compressCCtx should have failed ! (buffer too small : %u < %u)", (unsigned)tooSmallSize, (unsigned)cSize); } |
| { unsigned endCheck; memcpy(&endCheck, dstBuffer+tooSmallSize, sizeof(endCheck)); |
| CHECK(endCheck != endMark, "ZSTD_compressCCtx : dst buffer overflow (check.%08X != %08X.mark)", endCheck, endMark); } |
| } } |
| |
| /* frame header decompression test */ |
| { ZSTD_frameHeader zfh; |
| CHECK_Z( ZSTD_getFrameHeader(&zfh, cBuffer, cSize) ); |
| CHECK(zfh.frameContentSize != sampleSize, "Frame content size incorrect"); |
| } |
| |
| /* Decompressed size test */ |
| { unsigned long long const rSize = ZSTD_findDecompressedSize(cBuffer, cSize); |
| CHECK(rSize != sampleSize, "decompressed size incorrect"); |
| } |
| |
| /* successful decompression test */ |
| DISPLAYLEVEL(5, "fuzzer t%u: simple decompression test \n", testNb); |
| { size_t const margin = (FUZ_rand(&lseed) & 1) ? 0 : (FUZ_rand(&lseed) & 31) + 1; |
| size_t const dSize = ZSTD_decompress(dstBuffer, sampleSize + margin, cBuffer, cSize); |
| CHECK(dSize != sampleSize, "ZSTD_decompress failed (%s) (srcSize : %u ; cSize : %u)", ZSTD_getErrorName(dSize), (unsigned)sampleSize, (unsigned)cSize); |
| { U64 const crcDest = XXH64(dstBuffer, sampleSize, 0); |
| CHECK(crcOrig != crcDest, "decompression result corrupted (pos %u / %u)", (unsigned)findDiff(sampleBuffer, dstBuffer, sampleSize), (unsigned)sampleSize); |
| } } |
| |
| free(sampleBuffer); /* no longer useful after this point */ |
| |
| /* truncated src decompression test */ |
| DISPLAYLEVEL(5, "fuzzer t%u: decompression of truncated source \n", testNb); |
| { size_t const missing = (FUZ_rand(&lseed) % (cSize-2)) + 1; /* no problem, as cSize > 4 (frameHeaderSizer) */ |
| size_t const tooSmallSize = cSize - missing; |
| void* cBufferTooSmall = malloc(tooSmallSize); /* valgrind will catch read overflows */ |
| CHECK(cBufferTooSmall == NULL, "not enough memory !"); |
| memcpy(cBufferTooSmall, cBuffer, tooSmallSize); |
| { size_t const errorCode = ZSTD_decompress(dstBuffer, dstBufferSize, cBufferTooSmall, tooSmallSize); |
| CHECK(!ZSTD_isError(errorCode), "ZSTD_decompress should have failed ! (truncated src buffer)"); } |
| free(cBufferTooSmall); |
| } |
| |
| /* too small dst decompression test */ |
| DISPLAYLEVEL(5, "fuzzer t%u: decompress into too small dst buffer \n", testNb); |
| if (sampleSize > 3) { |
| size_t const missing = (FUZ_rand(&lseed) % (sampleSize-2)) + 1; /* no problem, as cSize > 4 (frameHeaderSizer) */ |
| size_t const tooSmallSize = sampleSize - missing; |
| static const BYTE token = 0xA9; |
| dstBuffer[tooSmallSize] = token; |
| { size_t const errorCode = ZSTD_decompress(dstBuffer, tooSmallSize, cBuffer, cSize); |
| CHECK(ZSTD_getErrorCode(errorCode) != ZSTD_error_dstSize_tooSmall, "ZSTD_decompress should have failed : %u > %u (dst buffer too small)", (unsigned)errorCode, (unsigned)tooSmallSize); } |
| CHECK(dstBuffer[tooSmallSize] != token, "ZSTD_decompress : dst buffer overflow"); |
| } |
| |
| /* noisy src decompression test */ |
| if (cSize > 6) { |
| /* insert noise into src */ |
| { U32 const maxNbBits = FUZ_highbit32((U32)(cSize-4)); |
| size_t pos = 4; /* preserve magic number (too easy to detect) */ |
| for (;;) { |
| /* keep some original src */ |
| { U32 const nbBits = FUZ_rand(&lseed) % maxNbBits; |
| size_t const mask = (1<<nbBits) - 1; |
| size_t const skipLength = FUZ_rand(&lseed) & mask; |
| pos += skipLength; |
| } |
| if (pos >= cSize) break; |
| /* add noise */ |
| { U32 const nbBitsCodes = FUZ_rand(&lseed) % maxNbBits; |
| U32 const nbBits = nbBitsCodes ? nbBitsCodes-1 : 0; |
| size_t const mask = (1<<nbBits) - 1; |
| size_t const rNoiseLength = (FUZ_rand(&lseed) & mask) + 1; |
| size_t const noiseLength = MIN(rNoiseLength, cSize-pos); |
| size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseLength); |
| memcpy(cBuffer + pos, srcBuffer + noiseStart, noiseLength); |
| pos += noiseLength; |
| } } } |
| |
| /* decompress noisy source */ |
| DISPLAYLEVEL(5, "fuzzer t%u: decompress noisy source \n", testNb); |
| { U32 const endMark = 0xA9B1C3D6; |
| memcpy(dstBuffer+sampleSize, &endMark, 4); |
| { size_t const decompressResult = ZSTD_decompress(dstBuffer, sampleSize, cBuffer, cSize); |
| /* result *may* be an unlikely success, but even then, it must strictly respect dst buffer boundaries */ |
| CHECK((!ZSTD_isError(decompressResult)) && (decompressResult>sampleSize), |
| "ZSTD_decompress on noisy src : result is too large : %u > %u (dst buffer)", (unsigned)decompressResult, (unsigned)sampleSize); |
| } |
| { U32 endCheck; memcpy(&endCheck, dstBuffer+sampleSize, 4); |
| CHECK(endMark!=endCheck, "ZSTD_decompress on noisy src : dst buffer overflow"); |
| } } } /* noisy src decompression test */ |
| |
| /*===== Bufferless streaming compression test, scattered segments and dictionary =====*/ |
| DISPLAYLEVEL(5, "fuzzer t%u: Bufferless streaming compression test \n", testNb); |
| { U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; |
| U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog; |
| int const cLevel = (FUZ_rand(&lseed) % |
| (ZSTD_maxCLevel() - |
| (MAX(testLog, dictLog) / cLevelLimiter))) + |
| 1; |
| maxTestSize = FUZ_rLogLength(&lseed, testLog); |
| if (maxTestSize >= dstBufferSize) maxTestSize = dstBufferSize-1; |
| |
| dictSize = FUZ_rLogLength(&lseed, dictLog); /* needed also for decompression */ |
| dict = srcBuffer + (FUZ_rand(&lseed) % (srcBufferSize - dictSize)); |
| |
| DISPLAYLEVEL(6, "fuzzer t%u: Compressing up to <=%u bytes at level %i with dictionary size %u \n", |
| testNb, (unsigned)maxTestSize, cLevel, (unsigned)dictSize); |
| |
| if (FUZ_rand(&lseed) & 0xF) { |
| CHECK_Z ( ZSTD_compressBegin_usingDict(refCtx, dict, dictSize, cLevel) ); |
| } else { |
| ZSTD_compressionParameters const cPar = ZSTD_getCParams(cLevel, ZSTD_CONTENTSIZE_UNKNOWN, dictSize); |
| ZSTD_frameParameters const fPar = { FUZ_rand(&lseed)&1 /* contentSizeFlag */, |
| !(FUZ_rand(&lseed)&3) /* contentChecksumFlag*/, |
| 0 /*NodictID*/ }; /* note : since dictionary is fake, dictIDflag has no impact */ |
| ZSTD_parameters const p = FUZ_makeParams(cPar, fPar); |
| CHECK_Z ( ZSTD_compressBegin_advanced(refCtx, dict, dictSize, p, 0) ); |
| } |
| CHECK_Z( ZSTD_copyCCtx(ctx, refCtx, 0) ); |
| } |
| |
| { U32 const nbChunks = (FUZ_rand(&lseed) & 127) + 2; |
| U32 n; |
| XXH64_state_t xxhState; |
| XXH64_reset(&xxhState, 0); |
| for (totalTestSize=0, cSize=0, n=0 ; n<nbChunks ; n++) { |
| size_t const segmentSize = FUZ_randomLength(&lseed, maxSampleLog); |
| size_t const segmentStart = FUZ_rand(&lseed) % (srcBufferSize - segmentSize); |
| |
| if (cBufferSize-cSize < ZSTD_compressBound(segmentSize)) break; /* avoid invalid dstBufferTooSmall */ |
| if (totalTestSize+segmentSize > maxTestSize) break; |
| |
| { size_t const compressResult = ZSTD_compressContinue(ctx, cBuffer+cSize, cBufferSize-cSize, srcBuffer+segmentStart, segmentSize); |
| CHECK (ZSTD_isError(compressResult), "multi-segments compression error : %s", ZSTD_getErrorName(compressResult)); |
| cSize += compressResult; |
| } |
| XXH64_update(&xxhState, srcBuffer+segmentStart, segmentSize); |
| memcpy(mirrorBuffer + totalTestSize, srcBuffer+segmentStart, segmentSize); |
| totalTestSize += segmentSize; |
| } |
| |
| { size_t const flushResult = ZSTD_compressEnd(ctx, cBuffer+cSize, cBufferSize-cSize, NULL, 0); |
| CHECK (ZSTD_isError(flushResult), "multi-segments epilogue error : %s", ZSTD_getErrorName(flushResult)); |
| cSize += flushResult; |
| } |
| crcOrig = XXH64_digest(&xxhState); |
| } |
| |
| /* streaming decompression test */ |
| DISPLAYLEVEL(5, "fuzzer t%u: Bufferless streaming decompression test \n", testNb); |
| /* ensure memory requirement is good enough (should always be true) */ |
| { ZSTD_frameHeader zfh; |
| CHECK( ZSTD_getFrameHeader(&zfh, cBuffer, ZSTD_FRAMEHEADERSIZE_MAX), |
| "ZSTD_getFrameHeader(): error retrieving frame information"); |
| { size_t const roundBuffSize = ZSTD_decodingBufferSize_min(zfh.windowSize, zfh.frameContentSize); |
| CHECK_Z(roundBuffSize); |
| CHECK((roundBuffSize > totalTestSize) && (zfh.frameContentSize!=ZSTD_CONTENTSIZE_UNKNOWN), |
| "ZSTD_decodingBufferSize_min() requires more memory (%u) than necessary (%u)", |
| (unsigned)roundBuffSize, (unsigned)totalTestSize ); |
| } } |
| if (dictSize<8) dictSize=0, dict=NULL; /* disable dictionary */ |
| CHECK_Z( ZSTD_decompressBegin_usingDict(dctx, dict, dictSize) ); |
| totalCSize = 0; |
| totalGenSize = 0; |
| while (totalCSize < cSize) { |
| size_t const inSize = ZSTD_nextSrcSizeToDecompress(dctx); |
| size_t const genSize = ZSTD_decompressContinue(dctx, dstBuffer+totalGenSize, dstBufferSize-totalGenSize, cBuffer+totalCSize, inSize); |
| CHECK (ZSTD_isError(genSize), "ZSTD_decompressContinue error : %s", ZSTD_getErrorName(genSize)); |
| totalGenSize += genSize; |
| totalCSize += inSize; |
| } |
| CHECK (ZSTD_nextSrcSizeToDecompress(dctx) != 0, "frame not fully decoded"); |
| CHECK (totalGenSize != totalTestSize, "streaming decompressed data : wrong size") |
| CHECK (totalCSize != cSize, "compressed data should be fully read") |
| { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); |
| CHECK(crcOrig != crcDest, "streaming decompressed data corrupted (pos %u / %u)", |
| (unsigned)findDiff(mirrorBuffer, dstBuffer, totalTestSize), (unsigned)totalTestSize); |
| } |
| } /* for ( ; (testNb <= nbTests) */ |
| DISPLAY("\r%u fuzzer tests completed \n", testNb-1); |
| |
| _cleanup: |
| ZSTD_freeCCtx(refCtx); |
| ZSTD_freeCCtx(ctx); |
| ZSTD_freeDCtx(dctx); |
| free(cNoiseBuffer[0]); |
| free(cNoiseBuffer[1]); |
| free(cNoiseBuffer[2]); |
| free(cNoiseBuffer[3]); |
| free(cNoiseBuffer[4]); |
| free(cBuffer); |
| free(dstBuffer); |
| free(mirrorBuffer); |
| 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:%i)\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; |
| } |
| |
| /*! readU32FromChar() : |
| @return : unsigned integer value read from input in `char` format |
| allows and interprets K, KB, KiB, M, MB and MiB suffix. |
| Will also modify `*stringPtr`, advancing it to position where it stopped reading. |
| Note : function result can overflow if digit string > MAX_UINT */ |
| static unsigned readU32FromChar(const char** stringPtr) |
| { |
| unsigned result = 0; |
| while ((**stringPtr >='0') && (**stringPtr <='9')) |
| result *= 10, result += **stringPtr - '0', (*stringPtr)++ ; |
| if ((**stringPtr=='K') || (**stringPtr=='M')) { |
| result <<= 10; |
| if (**stringPtr=='M') result <<= 10; |
| (*stringPtr)++ ; |
| if (**stringPtr=='i') (*stringPtr)++; |
| if (**stringPtr=='B') (*stringPtr)++; |
| } |
| return result; |
| } |
| |
| /** longCommandWArg() : |
| * check if *stringPtr is the same as longCommand. |
| * If yes, @return 1 and advances *stringPtr to the position which immediately follows longCommand. |
| * @return 0 and doesn't modify *stringPtr otherwise. |
| */ |
| static int longCommandWArg(const char** stringPtr, const char* longCommand) |
| { |
| size_t const comSize = strlen(longCommand); |
| int const result = !strncmp(*stringPtr, longCommand, comSize); |
| if (result) *stringPtr += comSize; |
| return result; |
| } |
| |
| int main(int argc, const char** argv) |
| { |
| U32 seed = 0; |
| int seedset = 0; |
| int argNb; |
| int nbTests = nbTestsDefault; |
| int testNb = 0; |
| int proba = FUZ_compressibility_default; |
| double probfloat; |
| int result = 0; |
| U32 mainPause = 0; |
| U32 maxDuration = 0; |
| int bigTests = 1; |
| int longTests = 0; |
| U32 memTestsOnly = 0; |
| const char* const programName = argv[0]; |
| |
| /* Check command line */ |
| for (argNb=1; argNb<argc; argNb++) { |
| const char* argument = argv[argNb]; |
| if(!argument) continue; /* Protection if argument empty */ |
| |
| /* Handle commands. Aggregated commands are allowed */ |
| if (argument[0]=='-') { |
| |
| if (longCommandWArg(&argument, "--memtest=")) { memTestsOnly = readU32FromChar(&argument); continue; } |
| |
| if (!strcmp(argument, "--memtest")) { memTestsOnly=1; continue; } |
| if (!strcmp(argument, "--no-big-tests")) { bigTests=0; continue; } |
| if (!strcmp(argument, "--long-tests")) { longTests=1; continue; } |
| if (!strcmp(argument, "--no-long-tests")) { longTests=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': |
| argument++; maxDuration = 0; |
| nbTests = (int)readU32FromChar(&argument); |
| break; |
| |
| case 'T': |
| argument++; |
| nbTests = 0; |
| maxDuration = readU32FromChar(&argument); |
| if (*argument=='s') argument++; /* seconds */ |
| if (*argument=='m') maxDuration *= 60, argument++; /* minutes */ |
| if (*argument=='n') argument++; |
| break; |
| |
| case 's': |
| argument++; |
| seedset = 1; |
| seed = readU32FromChar(&argument); |
| break; |
| |
| case 't': |
| argument++; |
| testNb = (int)readU32FromChar(&argument); |
| break; |
| |
| case 'P': /* compressibility % */ |
| argument++; |
| proba = (int)readU32FromChar(&argument); |
| if (proba>100) proba = 100; |
| break; |
| |
| default: |
| return (FUZ_usage(programName), 1); |
| } } } } /* for (argNb=1; argNb<argc; argNb++) */ |
| |
| /* Get Seed */ |
| DISPLAY("Starting zstd 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); |
| |
| probfloat = ((double)proba) / 100; |
| |
| if (memTestsOnly) { |
| g_displayLevel = MAX(3, g_displayLevel); |
| return FUZ_mallocTests(seed, probfloat, memTestsOnly); |
| } |
| |
| if (nbTests < testNb) nbTests = testNb; |
| |
| if (testNb==0) { |
| result = basicUnitTests(0, probfloat); /* constant seed for predictability */ |
| |
| if (!result && longTests) { |
| result = longUnitTests(0, probfloat); |
| } |
| } |
| if (!result) |
| result = fuzzerTests(seed, nbTests, testNb, maxDuration, ((double)proba) / 100, bigTests); |
| if (mainPause) { |
| int unused; |
| DISPLAY("Press Enter \n"); |
| unused = getchar(); |
| (void)unused; |
| } |
| return result; |
| } |