diff options
Diffstat (limited to 'tests/fuzzer.c')
| -rw-r--r-- | tests/fuzzer.c | 2839 |
1 files changed, 0 insertions, 2839 deletions
diff --git a/tests/fuzzer.c b/tests/fuzzer.c deleted file mode 100644 index 88f3b83f834c..000000000000 --- a/tests/fuzzer.c +++ /dev/null @@ -1,2839 +0,0 @@ -/* - * Copyright (c) 2015-present, Yann Collet, Facebook, Inc. - * All rights reserved. - * - * This source code is licensed under both the BSD-style license (found in the - * LICENSE file in the root directory of this source tree) and the GPLv2 (found - * in the COPYING file in the root directory of this source tree). - * You may select, at your option, one of the above-listed licenses. - */ - - -/*-************************************ -* Compiler specific -**************************************/ -#ifdef _MSC_VER /* Visual Studio */ -# define _CRT_SECURE_NO_WARNINGS /* fgets */ -# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ -# pragma warning(disable : 4204) /* disable: C4204: non-constant aggregate initializer */ -#endif - - -/*-************************************ -* Includes -**************************************/ -#include <stdlib.h> /* free */ -#include <stdio.h> /* fgets, sscanf */ -#include <string.h> /* strcmp */ -#include <assert.h> -#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressContinue, ZSTD_compressBlock */ -#include "fse.h" -#include "zstd.h" /* ZSTD_VERSION_STRING */ -#include "zstd_errors.h" /* ZSTD_getErrorCode */ -#include "zstdmt_compress.h" -#define ZDICT_STATIC_LINKING_ONLY -#include "zdict.h" /* ZDICT_trainFromBuffer */ -#include "datagen.h" /* RDG_genBuffer */ -#include "mem.h" -#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 */ - - -/*-************************************ -* Constants -**************************************/ -#define KB *(1U<<10) -#define MB *(1U<<20) -#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) -{ - size_t i; - size_t j; - for(i = 0; i < seqsSize - 1; ++i) { - assert(dst + seqs[i].litLength + seqs[i].matchLength < dst + size); - assert(src + seqs[i].litLength + seqs[i].matchLength < src + size); - - memcpy(dst, src, seqs[i].litLength); - dst += seqs[i].litLength; - src += seqs[i].litLength; - size -= seqs[i].litLength; - - 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; - } - 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 : 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_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%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 : 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 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"); - - /* 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 3 - DISPLAYLEVEL(3, "test%3i : create static CCtx for level %u :", testNb++, STATIC_CCTX_LEVEL); - { size_t const staticCCtxSize = ZSTD_estimateCStreamSize(STATIC_CCTX_LEVEL); - void* const staticCCtxBuffer = malloc(staticCCtxSize); - size_t const staticDCtxSize = ZSTD_estimateDCtxSize(); - void* const staticDCtxBuffer = malloc(staticDCtxSize); - if (staticCCtxBuffer==NULL || staticDCtxBuffer==NULL) { - free(staticCCtxBuffer); - free(staticDCtxBuffer); - DISPLAY("Not enough memory, aborting\n"); - testResult = 1; - goto _end; - } - { ZSTD_CCtx* staticCCtx = ZSTD_initStaticCCtx(staticCCtxBuffer, staticCCtxSize); - ZSTD_DCtx* staticDCtx = ZSTD_initStaticDCtx(staticDCtxBuffer, staticDCtxSize); - if ((staticCCtx==NULL) || (staticDCtx==NULL)) goto _output_error; - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : init CCtx for level %u : ", testNb++, STATIC_CCTX_LEVEL); - { size_t const r = ZSTD_compressBegin(staticCCtx, STATIC_CCTX_LEVEL); - if (ZSTD_isError(r)) goto _output_error; } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3i : simple compression test 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++); - { 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 : 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 : init CStream for small level %u : ", testNb++, 1); - CHECK( ZSTD_initCStream(staticCCtx, 1) ); - 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 : init DStream (should fail) : ", testNb++); - { size_t const r = ZSTD_initDStream(staticDCtx); - if (ZSTD_isError(r)) goto _output_error; } - { 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 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++); - { ZSTDMT_CCtx* const mtctx = ZSTDMT_createCCtx(2); - if (mtctx==NULL) { - DISPLAY("mtctx : not enough memory, aborting \n"); - testResult = 1; - goto _end; - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%3u : compress %u bytes with 2 threads : ", testNb++, (unsigned)CNBuffSize); - CHECK_VAR(cSize, ZSTDMT_compressCCtx(mtctx, - compressedBuffer, compressedBufferSize, - CNBuffer, CNBuffSize, - 1) ); - 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++); - { ZSTD_parameters params = ZSTD_getParams(1, CNBuffSize, 0); - params.fParams.checksumFlag = 1; - params.fParams.contentSizeFlag = 1; - CHECK_VAR(cSize, ZSTDMT_compress_advanced(mtctx, - compressedBuffer, compressedBufferSize, - CNBuffer, CNBuffSize, - NULL, params, 3 /*overlapRLog*/) ); - } - 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"); - - ZSTDMT_freeCCtx(mtctx); - } - - 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, - 3740, 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, 2920, 2900, 2890, - 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; - - 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 : 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)); - 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"); - - DISPLAYLEVEL(3, "test%3i : Loading rawContent starting with dict header w/ ZSTD_dct_auto should fail : ", testNb++); - { - size_t ret; - MEM_writeLE32((char*)dictBuffer+2, ZSTD_MAGIC_DICTIONARY); - /* Either operation is allowed to fail, but one must fail. */ - ret = ZSTD_CCtx_loadDictionary_advanced( - cctx, (const char*)dictBuffer+2, dictSize-2, 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; - MEM_writeLE32((char*)dictBuffer+2, ZSTD_MAGIC_DICTIONARY); - ret = ZSTD_CCtx_loadDictionary_advanced( - cctx, (const char*)dictBuffer+2, dictSize-2, 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 : ZSTD_CCtx_refCDict() then set parameters : ", testNb++); - { ZSTD_CDict* const cdict = ZSTD_createCDict(CNBuffer, dictSize, 1); - 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); - } - - /* 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; - DISPLAYLEVEL(3, "test%3i : Long RLE test : ", testNb++); - RDG_genBuffer(CNBuffer, sampleSize, compressibility, 0., seed+1); - memset((char*)CNBuffer+sampleSize, 'B', 256 KB - 1); - sampleSize += 256 KB - 1; - RDG_genBuffer((char*)CNBuffer+sampleSize, 96 KB, compressibility, 0., seed+2); - sampleSize += 96 KB; - cSize = ZSTD_compress(compressedBuffer, ZSTD_compressBound(sampleSize), CNBuffer, sampleSize, 1); - if (ZSTD_isError(cSize)) 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_getSequences decode from sequences test : ", testNb++); - { - size_t srcSize = 100 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); - - /* Populate src with random data */ - RDG_genBuffer(CNBuffer, srcSize, compressibility, 0., seed); - - /* get the sequences */ - seqsSize = ZSTD_getSequences(cctx, seqs, srcSize, src, srcSize); - - /* "decode" and compare the sequences */ - FUZ_decodeSequences(decoded, seqs, seqsSize, src, srcSize); - assert(!memcmp(CNBuffer, compressedBuffer, srcSize)); - - ZSTD_freeCCtx(cctx); - free(seqs); - } - - /* 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); - } - DISPLAYLEVEL(3, "OK \n"); - - DISPLAYLEVEL(3, "test%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* 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 / 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 / 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; - } - - ZSTD_freeCCtx(cctx); - free(staticCCtxBuffer); - } - 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 = - ( FUZ_rand(&lseed) % - (ZSTD_maxCLevel() - (FUZ_highbit32((U32)sampleSize) / 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_isError(errorCode), "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_isError(errorCode), "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# : Nb of tests (default:%i) \n", nbTestsDefault); - DISPLAY( " -s# : Select seed (default:prompt user)\n"); - DISPLAY( " -t# : Select starting test number (default:0)\n"); - DISPLAY( " -P# : Select compressibility in %% (default:%i%%)\n", FUZ_compressibility_default); - DISPLAY( " -v : verbose\n"); - DISPLAY( " -p : pause at the end\n"); - DISPLAY( " -h : display help and exit\n"); - return 0; -} - -/*! 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; - int result = 0; - U32 mainPause = 0; - U32 maxDuration = 0; - int bigTests = 1; - 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; } - - 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); - - if (memTestsOnly) { - g_displayLevel = MAX(3, g_displayLevel); - return FUZ_mallocTests(seed, ((double)proba) / 100, memTestsOnly); - } - - if (nbTests < testNb) nbTests = testNb; - - if (testNb==0) - result = basicUnitTests(0, ((double)proba) / 100); /* constant seed for predictability */ - 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; -} |