a880ca239b
* spelling: accidentally * spelling: across * spelling: additionally * spelling: addresses * spelling: appropriate * spelling: assumed * spelling: available * spelling: builder * spelling: capacity * spelling: compiler * spelling: compressibility * spelling: compressor * spelling: compression * spelling: contract * spelling: convenience * spelling: decompress * spelling: description * spelling: deflate * spelling: deterministically * spelling: dictionary * spelling: display * spelling: eliminate * spelling: preemptively * spelling: exclude * spelling: failure * spelling: independence * spelling: independent * spelling: intentionally * spelling: matching * spelling: maximum * spelling: meaning * spelling: mishandled * spelling: memory * spelling: occasionally * spelling: occurrence * spelling: official * spelling: offsets * spelling: original * spelling: output * spelling: overflow * spelling: overridden * spelling: parameter * spelling: performance * spelling: probability * spelling: receives * spelling: redundant * spelling: recompression * spelling: resources * spelling: sanity * spelling: segment * spelling: series * spelling: specified * spelling: specify * spelling: subtracted * spelling: successful * spelling: return * spelling: translation * spelling: update * spelling: unrelated * spelling: useless * spelling: variables * spelling: variety * spelling: verbatim * spelling: verification * spelling: visited * spelling: warming * spelling: workers * spelling: with
2415 lines
114 KiB
C
2415 lines
114 KiB
C
/*
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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/*-************************************
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* Compiler specific
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**************************************/
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#ifdef _MSC_VER /* Visual Studio */
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# define _CRT_SECURE_NO_WARNINGS /* fgets */
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# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
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# pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */
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#endif
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/*-************************************
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* Includes
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**************************************/
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#include <stdlib.h> /* free */
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#include <stdio.h> /* fgets, sscanf */
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#include <string.h> /* strcmp */
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#include <assert.h> /* assert */
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#include "timefn.h" /* UTIL_time_t, UTIL_getTime */
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#include "mem.h"
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#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel, ZSTD_customMem, ZSTD_getDictID_fromFrame */
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#include "zstd.h" /* ZSTD_compressBound */
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#include "zstd_errors.h" /* ZSTD_error_srcSize_wrong */
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#include "zstdmt_compress.h"
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#include "zdict.h" /* ZDICT_trainFromBuffer */
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#include "datagen.h" /* RDG_genBuffer */
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#define XXH_STATIC_LINKING_ONLY /* XXH64_state_t */
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#include "xxhash.h" /* XXH64_* */
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#include "seqgen.h"
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#include "util.h"
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#include "timefn.h" /* UTIL_time_t, UTIL_clockSpanMicro, UTIL_getTime */
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/*-************************************
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* Constants
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**************************************/
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#define KB *(1U<<10)
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#define MB *(1U<<20)
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#define GB *(1U<<30)
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static const int nbTestsDefault = 10000;
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static const U32 g_cLevelMax_smallTests = 10;
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#define COMPRESSIBLE_NOISE_LENGTH (10 MB)
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#define FUZ_COMPRESSIBILITY_DEFAULT 50
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static const U32 prime32 = 2654435761U;
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/*-************************************
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* Display Macros
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**************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { \
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DISPLAY(__VA_ARGS__); \
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if (g_displayLevel>=4) fflush(stderr); }
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static U32 g_displayLevel = 2;
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static const U64 g_refreshRate = SEC_TO_MICRO / 6;
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static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER;
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#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
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if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (g_displayLevel>=4)) \
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{ g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \
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if (g_displayLevel>=4) fflush(stderr); } }
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static U64 g_clockTime = 0;
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/*-*******************************************************
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* Check macros
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*********************************************************/
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#undef MIN
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#undef MAX
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#define MAX(a,b) ((a)>(b)?(a):(b))
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/*! FUZ_rand() :
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@return : a 27 bits random value, from a 32-bits `seed`.
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`seed` is also modified */
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#define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r)))
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static U32 FUZ_rand(U32* seedPtr)
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{
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static const U32 prime2 = 2246822519U;
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U32 rand32 = *seedPtr;
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rand32 *= prime32;
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rand32 += prime2;
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rand32 = FUZ_rotl32(rand32, 13);
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*seedPtr = rand32;
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return rand32 >> 5;
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}
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#define CHECK(cond, ...) { \
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if (cond) { \
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DISPLAY("Error => "); \
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DISPLAY(__VA_ARGS__); \
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DISPLAY(" (seed %u, test nb %u, line %u) \n", \
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(unsigned)seed, testNb, __LINE__); \
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goto _output_error; \
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} }
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#define CHECK_Z(f) { \
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size_t const err = f; \
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CHECK(ZSTD_isError(err), "%s : %s ", \
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#f, ZSTD_getErrorName(err)); \
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}
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#define CHECK_RET(ret, cond, ...) { \
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if (cond) { \
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DISPLAY("Error %llu => ", (unsigned long long)ret); \
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DISPLAY(__VA_ARGS__); \
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DISPLAY(" (line %u)\n", __LINE__); \
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return ret; \
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} }
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#define CHECK_RET_Z(f) { \
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size_t const err = f; \
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CHECK_RET(err, ZSTD_isError(err), "%s : %s ", \
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#f, ZSTD_getErrorName(err)); \
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}
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/*======================================================
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* Basic Unit tests
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*======================================================*/
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typedef struct {
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void* start;
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size_t size;
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size_t filled;
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} buffer_t;
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static const buffer_t kBuffNull = { NULL, 0 , 0 };
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static void FUZ_freeDictionary(buffer_t dict)
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{
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free(dict.start);
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}
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static buffer_t FUZ_createDictionary(const void* src, size_t srcSize, size_t blockSize, size_t requestedDictSize)
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{
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buffer_t dict = kBuffNull;
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size_t const nbBlocks = (srcSize + (blockSize-1)) / blockSize;
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size_t* const blockSizes = (size_t*)malloc(nbBlocks * sizeof(size_t));
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if (!blockSizes) return kBuffNull;
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dict.start = malloc(requestedDictSize);
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if (!dict.start) { free(blockSizes); return kBuffNull; }
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{ size_t nb;
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for (nb=0; nb<nbBlocks-1; nb++) blockSizes[nb] = blockSize;
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blockSizes[nbBlocks-1] = srcSize - (blockSize * (nbBlocks-1));
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}
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{ size_t const dictSize = ZDICT_trainFromBuffer(dict.start, requestedDictSize, src, blockSizes, (unsigned)nbBlocks);
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free(blockSizes);
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if (ZDICT_isError(dictSize)) { FUZ_freeDictionary(dict); return kBuffNull; }
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dict.size = requestedDictSize;
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dict.filled = dictSize;
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return dict;
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}
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}
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/* Round trips data and updates xxh with the decompressed data produced */
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static size_t SEQ_roundTrip(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx,
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XXH64_state_t* xxh, void* data, size_t size,
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ZSTD_EndDirective endOp)
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{
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static BYTE compressed[1024];
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static BYTE uncompressed[1024];
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ZSTD_inBuffer cin = {data, size, 0};
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size_t cret;
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do {
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ZSTD_outBuffer cout = { compressed, sizeof(compressed), 0 };
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ZSTD_inBuffer din = { compressed, 0, 0 };
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ZSTD_outBuffer dout = { uncompressed, 0, 0 };
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cret = ZSTD_compressStream2(cctx, &cout, &cin, endOp);
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if (ZSTD_isError(cret))
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return cret;
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din.size = cout.pos;
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while (din.pos < din.size || (endOp == ZSTD_e_end && cret == 0)) {
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size_t dret;
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dout.pos = 0;
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dout.size = sizeof(uncompressed);
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dret = ZSTD_decompressStream(dctx, &dout, &din);
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if (ZSTD_isError(dret))
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return dret;
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XXH64_update(xxh, dout.dst, dout.pos);
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if (dret == 0)
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break;
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}
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} while (cin.pos < cin.size || (endOp != ZSTD_e_continue && cret != 0));
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return 0;
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}
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/* Generates some data and round trips it */
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static size_t SEQ_generateRoundTrip(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx,
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XXH64_state_t* xxh, SEQ_stream* seq,
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SEQ_gen_type type, unsigned value)
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{
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static BYTE data[1024];
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size_t gen;
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do {
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SEQ_outBuffer sout = {data, sizeof(data), 0};
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size_t ret;
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gen = SEQ_gen(seq, type, value, &sout);
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ret = SEQ_roundTrip(cctx, dctx, xxh, sout.dst, sout.pos, ZSTD_e_continue);
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if (ZSTD_isError(ret))
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return ret;
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} while (gen != 0);
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return 0;
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}
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static size_t getCCtxParams(ZSTD_CCtx* zc, ZSTD_parameters* savedParams)
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{
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int value;
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_windowLog, (int*)&savedParams->cParams.windowLog));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_hashLog, (int*)&savedParams->cParams.hashLog));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_chainLog, (int*)&savedParams->cParams.chainLog));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_searchLog, (int*)&savedParams->cParams.searchLog));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_minMatch, (int*)&savedParams->cParams.minMatch));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_targetLength, (int*)&savedParams->cParams.targetLength));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_strategy, &value));
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savedParams->cParams.strategy = value;
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_checksumFlag, &savedParams->fParams.checksumFlag));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_contentSizeFlag, &savedParams->fParams.contentSizeFlag));
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CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_dictIDFlag, &value));
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savedParams->fParams.noDictIDFlag = !value;
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return 0;
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}
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static U32 badParameters(ZSTD_CCtx* zc, ZSTD_parameters const savedParams)
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{
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ZSTD_parameters params;
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if (ZSTD_isError(getCCtxParams(zc, ¶ms))) return 10;
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CHECK_RET(1, params.cParams.windowLog != savedParams.cParams.windowLog, "windowLog");
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CHECK_RET(2, params.cParams.hashLog != savedParams.cParams.hashLog, "hashLog");
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CHECK_RET(3, params.cParams.chainLog != savedParams.cParams.chainLog, "chainLog");
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CHECK_RET(4, params.cParams.searchLog != savedParams.cParams.searchLog, "searchLog");
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CHECK_RET(5, params.cParams.minMatch != savedParams.cParams.minMatch, "minMatch");
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CHECK_RET(6, params.cParams.targetLength != savedParams.cParams.targetLength, "targetLength");
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CHECK_RET(7, params.fParams.checksumFlag != savedParams.fParams.checksumFlag, "checksumFlag");
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CHECK_RET(8, params.fParams.contentSizeFlag != savedParams.fParams.contentSizeFlag, "contentSizeFlag");
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CHECK_RET(9, params.fParams.noDictIDFlag != savedParams.fParams.noDictIDFlag, "noDictIDFlag");
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return 0;
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}
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static int basicUnitTests(U32 seed, double compressibility)
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{
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size_t const CNBufferSize = COMPRESSIBLE_NOISE_LENGTH;
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void* CNBuffer = malloc(CNBufferSize);
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size_t const skippableFrameSize = 200 KB;
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size_t const compressedBufferSize = (8 + skippableFrameSize) + ZSTD_compressBound(COMPRESSIBLE_NOISE_LENGTH);
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void* compressedBuffer = malloc(compressedBufferSize);
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size_t const decodedBufferSize = CNBufferSize;
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void* decodedBuffer = malloc(decodedBufferSize);
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size_t cSize;
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int testResult = 0;
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int testNb = 1;
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U32 coreSeed = 0; /* this name to conform with CHECK_Z macro display */
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ZSTD_CStream* zc = ZSTD_createCStream();
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ZSTD_DStream* zd = ZSTD_createDStream();
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ZSTDMT_CCtx* mtctx = ZSTDMT_createCCtx(2);
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ZSTD_inBuffer inBuff, inBuff2;
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ZSTD_outBuffer outBuff;
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buffer_t dictionary = kBuffNull;
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size_t const dictSize = 128 KB;
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unsigned dictID = 0;
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/* Create compressible test buffer */
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if (!CNBuffer || !compressedBuffer || !decodedBuffer || !zc || !zd) {
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DISPLAY("Not enough memory, aborting \n");
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goto _output_error;
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}
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RDG_genBuffer(CNBuffer, CNBufferSize, compressibility, 0., seed);
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/* Create dictionary */
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DISPLAYLEVEL(3, "creating dictionary for unit tests \n");
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dictionary = FUZ_createDictionary(CNBuffer, CNBufferSize / 3, 16 KB, 48 KB);
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if (!dictionary.start) {
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DISPLAY("Error creating dictionary, aborting \n");
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goto _output_error;
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}
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dictID = ZDICT_getDictID(dictionary.start, dictionary.filled);
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/* Basic compression test */
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DISPLAYLEVEL(3, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
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CHECK_Z( ZSTD_initCStream(zc, 1 /* cLevel */) );
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outBuff.dst = (char*)(compressedBuffer);
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outBuff.size = compressedBufferSize;
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outBuff.pos = 0;
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inBuff.src = CNBuffer;
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inBuff.size = CNBufferSize;
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inBuff.pos = 0;
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CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
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if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
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{ size_t const r = ZSTD_endStream(zc, &outBuff);
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if (r != 0) goto _output_error; } /* error, or some data not flushed */
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DISPLAYLEVEL(3, "OK (%u bytes)\n", (unsigned)outBuff.pos);
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/* generate skippable frame */
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MEM_writeLE32(compressedBuffer, ZSTD_MAGIC_SKIPPABLE_START);
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MEM_writeLE32(((char*)compressedBuffer)+4, (U32)skippableFrameSize);
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cSize = skippableFrameSize + 8;
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/* Basic compression test using dict */
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DISPLAYLEVEL(3, "test%3i : skipframe + compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
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CHECK_Z( ZSTD_initCStream_usingDict(zc, CNBuffer, dictSize, 1 /* cLevel */) );
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outBuff.dst = (char*)(compressedBuffer)+cSize;
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assert(compressedBufferSize > cSize);
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outBuff.size = compressedBufferSize - cSize;
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outBuff.pos = 0;
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inBuff.src = CNBuffer;
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inBuff.size = CNBufferSize;
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inBuff.pos = 0;
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CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
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if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
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{ size_t const r = ZSTD_endStream(zc, &outBuff);
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if (r != 0) goto _output_error; } /* error, or some data not flushed */
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cSize += outBuff.pos;
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DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n",
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(unsigned)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100);
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|
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/* context size functions */
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DISPLAYLEVEL(3, "test%3i : estimate CStream size : ", testNb++);
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{ ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBufferSize, dictSize);
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size_t const cstreamSize = ZSTD_estimateCStreamSize_usingCParams(cParams);
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size_t const cdictSize = ZSTD_estimateCDictSize_advanced(dictSize, cParams, ZSTD_dlm_byCopy); /* uses ZSTD_initCStream_usingDict() */
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if (ZSTD_isError(cstreamSize)) goto _output_error;
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if (ZSTD_isError(cdictSize)) goto _output_error;
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DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)(cstreamSize + cdictSize));
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}
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|
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/* context size functions */
|
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DISPLAYLEVEL(3, "test%3i : estimate CStream size using CCtxParams : ", testNb++);
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{ ZSTD_CCtx_params* const params = ZSTD_createCCtxParams();
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size_t cstreamSize, cctxSize;
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CHECK_Z( ZSTD_CCtxParams_setParameter(params, ZSTD_c_compressionLevel, 19) );
|
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cstreamSize = ZSTD_estimateCStreamSize_usingCCtxParams(params);
|
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CHECK_Z(cstreamSize);
|
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cctxSize = ZSTD_estimateCCtxSize_usingCCtxParams(params);
|
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CHECK_Z(cctxSize);
|
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if (cstreamSize <= cctxSize + 2 * ZSTD_BLOCKSIZE_MAX) goto _output_error;
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ZSTD_freeCCtxParams(params);
|
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DISPLAYLEVEL(3, "OK \n");
|
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}
|
|
|
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DISPLAYLEVEL(3, "test%3i : check actual CStream size : ", testNb++);
|
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{ size_t const s = ZSTD_sizeof_CStream(zc);
|
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if (ZSTD_isError(s)) goto _output_error;
|
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DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s);
|
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}
|
|
|
|
/* Attempt bad compression parameters */
|
|
DISPLAYLEVEL(3, "test%3i : use bad compression parameters : ", testNb++);
|
|
{ size_t r;
|
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ZSTD_parameters params = ZSTD_getParams(1, 0, 0);
|
|
params.cParams.minMatch = 2;
|
|
r = ZSTD_initCStream_advanced(zc, NULL, 0, params, 0);
|
|
if (!ZSTD_isError(r)) goto _output_error;
|
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DISPLAYLEVEL(3, "init error : %s \n", ZSTD_getErrorName(r));
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}
|
|
|
|
/* skippable frame test */
|
|
DISPLAYLEVEL(3, "test%3i : decompress skippable frame : ", testNb++);
|
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CHECK_Z( ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize) );
|
|
inBuff.src = compressedBuffer;
|
|
inBuff.size = cSize;
|
|
inBuff.pos = 0;
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.size = CNBufferSize;
|
|
outBuff.pos = 0;
|
|
{ size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
DISPLAYLEVEL(5, " ( ZSTD_decompressStream => %u ) ", (unsigned)r);
|
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if (r != 0) goto _output_error;
|
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}
|
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if (outBuff.pos != 0) goto _output_error; /* skippable frame output len is 0 */
|
|
DISPLAYLEVEL(3, "OK \n");
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|
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/* Basic decompression test */
|
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inBuff2 = inBuff;
|
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DISPLAYLEVEL(3, "test%3i : decompress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
|
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ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize);
|
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CHECK_Z( ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, ZSTD_WINDOWLOG_LIMIT_DEFAULT+1) ); /* large limit */
|
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{ size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inBuff);
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if (remaining != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */
|
|
if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* Re-use without init */
|
|
DISPLAYLEVEL(3, "test%3i : decompress again without init (re-use previous settings): ", testNb++);
|
|
outBuff.pos = 0;
|
|
{ size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inBuff2);
|
|
if (remaining != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */
|
|
if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* check regenerated data is byte exact */
|
|
DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++);
|
|
{ size_t i;
|
|
for (i=0; i<CNBufferSize; i++) {
|
|
if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error;
|
|
} }
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* context size functions */
|
|
DISPLAYLEVEL(3, "test%3i : estimate DStream size : ", testNb++);
|
|
{ ZSTD_frameHeader fhi;
|
|
const void* cStart = (char*)compressedBuffer + (skippableFrameSize + 8);
|
|
size_t const gfhError = ZSTD_getFrameHeader(&fhi, cStart, cSize);
|
|
if (gfhError!=0) goto _output_error;
|
|
DISPLAYLEVEL(5, " (windowSize : %u) ", (unsigned)fhi.windowSize);
|
|
{ size_t const s = ZSTD_estimateDStreamSize(fhi.windowSize)
|
|
/* uses ZSTD_initDStream_usingDict() */
|
|
+ ZSTD_estimateDDictSize(dictSize, ZSTD_dlm_byCopy);
|
|
if (ZSTD_isError(s)) goto _output_error;
|
|
DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s);
|
|
} }
|
|
|
|
DISPLAYLEVEL(3, "test%3i : check actual DStream size : ", testNb++);
|
|
{ size_t const s = ZSTD_sizeof_DStream(zd);
|
|
if (ZSTD_isError(s)) goto _output_error;
|
|
DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s);
|
|
}
|
|
|
|
/* Decompression by small increment */
|
|
DISPLAYLEVEL(3, "test%3i : decompress byte-by-byte : ", testNb++);
|
|
{ /* skippable frame */
|
|
size_t r = 1;
|
|
ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize);
|
|
inBuff.src = compressedBuffer;
|
|
outBuff.dst = decodedBuffer;
|
|
inBuff.pos = 0;
|
|
outBuff.pos = 0;
|
|
while (r) { /* skippable frame */
|
|
size_t const inSize = (FUZ_rand(&coreSeed) & 15) + 1;
|
|
size_t const outSize = (FUZ_rand(&coreSeed) & 15) + 1;
|
|
inBuff.size = inBuff.pos + inSize;
|
|
outBuff.size = outBuff.pos + outSize;
|
|
r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream on skippable frame error : %s \n", ZSTD_getErrorName(r));
|
|
if (ZSTD_isError(r)) goto _output_error;
|
|
}
|
|
/* normal frame */
|
|
ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize);
|
|
r=1;
|
|
while (r) {
|
|
size_t const inSize = FUZ_rand(&coreSeed) & 15;
|
|
size_t const outSize = (FUZ_rand(&coreSeed) & 15) + (!inSize); /* avoid having both sizes at 0 => would trigger a no_forward_progress error */
|
|
inBuff.size = inBuff.pos + inSize;
|
|
outBuff.size = outBuff.pos + outSize;
|
|
r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(r));
|
|
if (ZSTD_isError(r)) goto _output_error;
|
|
}
|
|
}
|
|
if (outBuff.pos != CNBufferSize) DISPLAYLEVEL(4, "outBuff.pos != CNBufferSize : should have regenerated same amount ! \n");
|
|
if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */
|
|
if (inBuff.pos != cSize) DISPLAYLEVEL(4, "inBuff.pos != cSize : should have real all input ! \n");
|
|
if (inBuff.pos != cSize) goto _output_error; /* should have read the entire frame */
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* check regenerated data is byte exact */
|
|
DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++);
|
|
{ size_t i;
|
|
for (i=0; i<CNBufferSize; i++) {
|
|
if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error;;
|
|
} }
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* Decompression forward progress */
|
|
DISPLAYLEVEL(3, "test%3i : generate error when ZSTD_decompressStream() doesn't progress : ", testNb++);
|
|
{ /* skippable frame */
|
|
size_t r = 0;
|
|
int decNb = 0;
|
|
int const maxDec = 100;
|
|
inBuff.src = compressedBuffer;
|
|
inBuff.size = cSize;
|
|
inBuff.pos = 0;
|
|
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.pos = 0;
|
|
outBuff.size = CNBufferSize-1; /* 1 byte missing */
|
|
|
|
for (decNb=0; decNb<maxDec; decNb++) {
|
|
if (r==0) ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize);
|
|
r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(r)) break;
|
|
}
|
|
if (!ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream should have triggered a no_forward_progress error \n");
|
|
if (!ZSTD_isError(r)) goto _output_error; /* should have triggered no_forward_progress error */
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* _srcSize compression test */
|
|
DISPLAYLEVEL(3, "test%3i : compress_srcSize %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
|
|
CHECK_Z( ZSTD_initCStream_srcSize(zc, 1, CNBufferSize) );
|
|
outBuff.dst = (char*)(compressedBuffer);
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
CHECK(inBuff.pos != inBuff.size, "Entire input should be consumed");
|
|
{ size_t const r = ZSTD_endStream(zc, &outBuff);
|
|
CHECK(r != 0, "Error or some data not flushed (ret=%zu)", r);
|
|
}
|
|
{ unsigned long long origSize = ZSTD_findDecompressedSize(outBuff.dst, outBuff.pos);
|
|
CHECK(origSize == ZSTD_CONTENTSIZE_UNKNOWN, "Unknown!");
|
|
CHECK((size_t)origSize != CNBufferSize, "Exact original size must be present (got %llu)", origSize);
|
|
}
|
|
DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100);
|
|
|
|
/* wrong _srcSize compression test */
|
|
DISPLAYLEVEL(3, "test%3i : too large srcSize : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1);
|
|
ZSTD_initCStream_srcSize(zc, 1, CNBufferSize+1);
|
|
outBuff.dst = (char*)(compressedBuffer);
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
{ size_t const r = ZSTD_endStream(zc, &outBuff);
|
|
if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */
|
|
DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); }
|
|
|
|
/* wrong _srcSize compression test */
|
|
DISPLAYLEVEL(3, "test%3i : too small srcSize : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1);
|
|
ZSTD_initCStream_srcSize(zc, 1, CNBufferSize-1);
|
|
outBuff.dst = (char*)(compressedBuffer);
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
{ size_t const r = ZSTD_compressStream(zc, &outBuff, &inBuff);
|
|
if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */
|
|
DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r));
|
|
}
|
|
|
|
DISPLAYLEVEL(3, "test%3i : wrong srcSize !contentSizeFlag : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1);
|
|
{ ZSTD_parameters params = ZSTD_getParams(1, CNBufferSize, 0);
|
|
params.fParams.contentSizeFlag = 0;
|
|
CHECK_Z(ZSTD_initCStream_advanced(zc, NULL, 0, params, CNBufferSize - MIN(CNBufferSize, 200 KB)));
|
|
outBuff.dst = (char*)compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
{ size_t const r = ZSTD_compressStream(zc, &outBuff, &inBuff);
|
|
if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */
|
|
DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r));
|
|
} }
|
|
|
|
/* Complex context re-use scenario */
|
|
DISPLAYLEVEL(3, "test%3i : context re-use : ", testNb++);
|
|
ZSTD_freeCStream(zc);
|
|
zc = ZSTD_createCStream();
|
|
if (zc==NULL) goto _output_error; /* memory allocation issue */
|
|
/* use 1 */
|
|
{ size_t const inSize = 513;
|
|
DISPLAYLEVEL(5, "use1 ");
|
|
ZSTD_initCStream_advanced(zc, NULL, 0, ZSTD_getParams(19, inSize, 0), inSize); /* needs btopt + search3 to trigger hashLog3 */
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = inSize;
|
|
inBuff.pos = 0;
|
|
outBuff.dst = (char*)(compressedBuffer)+cSize;
|
|
outBuff.size = ZSTD_compressBound(inSize);
|
|
outBuff.pos = 0;
|
|
DISPLAYLEVEL(5, "compress1 ");
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
DISPLAYLEVEL(5, "end1 ");
|
|
{ size_t const r = ZSTD_endStream(zc, &outBuff);
|
|
if (r != 0) goto _output_error; } /* error, or some data not flushed */
|
|
}
|
|
/* use 2 */
|
|
{ size_t const inSize = 1025; /* will not continue, because tables auto-adjust and are therefore different size */
|
|
DISPLAYLEVEL(5, "use2 ");
|
|
ZSTD_initCStream_advanced(zc, NULL, 0, ZSTD_getParams(19, inSize, 0), inSize); /* needs btopt + search3 to trigger hashLog3 */
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = inSize;
|
|
inBuff.pos = 0;
|
|
outBuff.dst = (char*)(compressedBuffer)+cSize;
|
|
outBuff.size = ZSTD_compressBound(inSize);
|
|
outBuff.pos = 0;
|
|
DISPLAYLEVEL(5, "compress2 ");
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
DISPLAYLEVEL(5, "end2 ");
|
|
{ size_t const r = ZSTD_endStream(zc, &outBuff);
|
|
if (r != 0) goto _output_error; } /* error, or some data not flushed */
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* CDict scenario */
|
|
DISPLAYLEVEL(3, "test%3i : digested dictionary : ", testNb++);
|
|
{ ZSTD_CDict* const cdict = ZSTD_createCDict(dictionary.start, dictionary.filled, 1 /*byRef*/ );
|
|
size_t const initError = ZSTD_initCStream_usingCDict(zc, cdict);
|
|
DISPLAYLEVEL(5, "ZSTD_initCStream_usingCDict result : %u ", (unsigned)initError);
|
|
if (ZSTD_isError(initError)) goto _output_error;
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
DISPLAYLEVEL(5, "- starting ZSTD_compressStream ");
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
{ size_t const r = ZSTD_endStream(zc, &outBuff);
|
|
DISPLAYLEVEL(5, "- ZSTD_endStream result : %u ", (unsigned)r);
|
|
if (r != 0) goto _output_error; /* error, or some data not flushed */
|
|
}
|
|
cSize = outBuff.pos;
|
|
ZSTD_freeCDict(cdict);
|
|
DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100);
|
|
}
|
|
|
|
DISPLAYLEVEL(3, "test%3i : check CStream size : ", testNb++);
|
|
{ size_t const s = ZSTD_sizeof_CStream(zc);
|
|
if (ZSTD_isError(s)) goto _output_error;
|
|
DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s);
|
|
}
|
|
|
|
DISPLAYLEVEL(4, "test%3i : check Dictionary ID : ", testNb++);
|
|
{ unsigned const dID = ZSTD_getDictID_fromFrame(compressedBuffer, cSize);
|
|
if (dID != dictID) goto _output_error;
|
|
DISPLAYLEVEL(4, "OK (%u) \n", dID);
|
|
}
|
|
|
|
/* DDict scenario */
|
|
DISPLAYLEVEL(3, "test%3i : decompress %u bytes with digested dictionary : ", testNb++, (unsigned)CNBufferSize);
|
|
{ ZSTD_DDict* const ddict = ZSTD_createDDict(dictionary.start, dictionary.filled);
|
|
size_t const initError = ZSTD_initDStream_usingDDict(zd, ddict);
|
|
if (ZSTD_isError(initError)) goto _output_error;
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.size = CNBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = compressedBuffer;
|
|
inBuff.size = cSize;
|
|
inBuff.pos = 0;
|
|
{ size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (r != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */
|
|
if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */
|
|
ZSTD_freeDDict(ddict);
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
}
|
|
|
|
/* Memory restriction */
|
|
DISPLAYLEVEL(3, "test%3i : maxWindowSize < frame requirement : ", testNb++);
|
|
ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize);
|
|
CHECK_Z( ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, 10) ); /* too small limit */
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.size = CNBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = compressedBuffer;
|
|
inBuff.size = cSize;
|
|
inBuff.pos = 0;
|
|
{ size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (!ZSTD_isError(r)) goto _output_error; /* must fail : frame requires > 100 bytes */
|
|
DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); }
|
|
ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters); /* leave zd in good shape for next tests */
|
|
|
|
DISPLAYLEVEL(3, "test%3i : dictionary source size and level : ", testNb++);
|
|
{ ZSTD_DCtx* const dctx = ZSTD_createDCtx();
|
|
int const maxLevel = 16; /* first level with zstd_opt */
|
|
int level;
|
|
assert(maxLevel < ZSTD_maxCLevel());
|
|
CHECK_Z( ZSTD_DCtx_loadDictionary_byReference(dctx, dictionary.start, dictionary.filled) );
|
|
for (level = 1; level <= maxLevel; ++level) {
|
|
ZSTD_CDict* const cdict = ZSTD_createCDict(dictionary.start, dictionary.filled, level);
|
|
size_t const maxSize = MIN(1 MB, CNBufferSize);
|
|
size_t size;
|
|
for (size = 512; size <= maxSize; size <<= 1) {
|
|
U64 const crcOrig = XXH64(CNBuffer, size, 0);
|
|
ZSTD_CCtx* const cctx = ZSTD_createCCtx();
|
|
ZSTD_parameters savedParams;
|
|
getCCtxParams(cctx, &savedParams);
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = size;
|
|
inBuff.pos = 0;
|
|
CHECK_Z(ZSTD_CCtx_refCDict(cctx, cdict));
|
|
CHECK_Z(ZSTD_compressStream2(cctx, &outBuff, &inBuff, ZSTD_e_end));
|
|
CHECK(badParameters(cctx, savedParams), "Bad CCtx params");
|
|
if (inBuff.pos != inBuff.size) goto _output_error;
|
|
{ ZSTD_outBuffer decOut = {decodedBuffer, size, 0};
|
|
ZSTD_inBuffer decIn = {outBuff.dst, outBuff.pos, 0};
|
|
CHECK_Z( ZSTD_decompressStream(dctx, &decOut, &decIn) );
|
|
if (decIn.pos != decIn.size) goto _output_error;
|
|
if (decOut.pos != size) goto _output_error;
|
|
{ U64 const crcDec = XXH64(decOut.dst, decOut.pos, 0);
|
|
if (crcDec != crcOrig) goto _output_error;
|
|
} }
|
|
ZSTD_freeCCtx(cctx);
|
|
}
|
|
ZSTD_freeCDict(cdict);
|
|
}
|
|
ZSTD_freeDCtx(dctx);
|
|
}
|
|
DISPLAYLEVEL(3, "OK\n");
|
|
|
|
ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters);
|
|
CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dictionary.start, dictionary.filled) );
|
|
cSize = ZSTD_compress2(zc, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBufferSize, 100 KB));
|
|
CHECK_Z(cSize);
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() with dictionary : ", testNb++);
|
|
{
|
|
ZSTD_DCtx* dctx = ZSTD_createDCtx();
|
|
/* We should fail to decompress without a dictionary. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters);
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
size_t const ret = ZSTD_decompressStream(dctx, &out, &in);
|
|
if (!ZSTD_isError(ret)) goto _output_error;
|
|
}
|
|
/* We should succeed to decompress with the dictionary. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters);
|
|
CHECK_Z( ZSTD_DCtx_loadDictionary(dctx, dictionary.start, dictionary.filled) );
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* The dictionary should presist across calls. */
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* The dictionary should not be cleared by ZSTD_reset_session_only. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only);
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* When we reset the context the dictionary is cleared. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters);
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
size_t const ret = ZSTD_decompressStream(dctx, &out, &in);
|
|
if (!ZSTD_isError(ret)) goto _output_error;
|
|
}
|
|
ZSTD_freeDCtx(dctx);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_resetDStream() with dictionary : ", testNb++);
|
|
{
|
|
ZSTD_DCtx* dctx = ZSTD_createDCtx();
|
|
/* We should succeed to decompress with the dictionary. */
|
|
ZSTD_resetDStream(dctx);
|
|
CHECK_Z( ZSTD_DCtx_loadDictionary(dctx, dictionary.start, dictionary.filled) );
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* The dictionary should not be cleared by ZSTD_resetDStream(). */
|
|
ZSTD_resetDStream(dctx);
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* The dictionary should be cleared by ZSTD_initDStream(). */
|
|
CHECK_Z( ZSTD_initDStream(dctx) );
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
size_t const ret = ZSTD_decompressStream(dctx, &out, &in);
|
|
if (!ZSTD_isError(ret)) goto _output_error;
|
|
}
|
|
ZSTD_freeDCtx(dctx);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() with ddict : ", testNb++);
|
|
{
|
|
ZSTD_DCtx* dctx = ZSTD_createDCtx();
|
|
ZSTD_DDict* ddict = ZSTD_createDDict(dictionary.start, dictionary.filled);
|
|
/* We should succeed to decompress with the ddict. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters);
|
|
CHECK_Z( ZSTD_DCtx_refDDict(dctx, ddict) );
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* The ddict should presist across calls. */
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* When we reset the context the ddict is cleared. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters);
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
size_t const ret = ZSTD_decompressStream(dctx, &out, &in);
|
|
if (!ZSTD_isError(ret)) goto _output_error;
|
|
}
|
|
ZSTD_freeDCtx(dctx);
|
|
ZSTD_freeDDict(ddict);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_decompressDCtx() with prefix : ", testNb++);
|
|
{
|
|
ZSTD_DCtx* dctx = ZSTD_createDCtx();
|
|
/* We should succeed to decompress with the prefix. */
|
|
ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters);
|
|
CHECK_Z( ZSTD_DCtx_refPrefix_advanced(dctx, dictionary.start, dictionary.filled, ZSTD_dct_auto) );
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error;
|
|
if (in.pos != in.size) goto _output_error;
|
|
}
|
|
/* The prefix should be cleared after the first compression. */
|
|
{ ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0};
|
|
ZSTD_inBuffer in = {compressedBuffer, cSize, 0};
|
|
size_t const ret = ZSTD_decompressStream(dctx, &out, &in);
|
|
if (!ZSTD_isError(ret)) goto _output_error;
|
|
}
|
|
ZSTD_freeDCtx(dctx);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_initDStream*() with dictionary : ", testNb++);
|
|
{
|
|
ZSTD_DCtx* dctx = ZSTD_createDCtx();
|
|
ZSTD_DDict* ddict = ZSTD_createDDict(dictionary.start, dictionary.filled);
|
|
size_t ret;
|
|
/* We should succeed to decompress with the dictionary. */
|
|
CHECK_Z( ZSTD_initDStream_usingDict(dctx, dictionary.start, dictionary.filled) );
|
|
CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) );
|
|
/* The dictionary should presist across calls. */
|
|
CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) );
|
|
/* We should succeed to decompress with the ddict. */
|
|
CHECK_Z( ZSTD_initDStream_usingDDict(dctx, ddict) );
|
|
CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) );
|
|
/* The ddict should presist across calls. */
|
|
CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) );
|
|
/* When we reset the context the ddict is cleared. */
|
|
CHECK_Z( ZSTD_initDStream(dctx) );
|
|
ret = ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize);
|
|
if (!ZSTD_isError(ret)) goto _output_error;
|
|
ZSTD_freeDCtx(dctx);
|
|
ZSTD_freeDDict(ddict);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_usingCDict_advanced with masked dictID : ", testNb++);
|
|
{ ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBufferSize, dictionary.filled);
|
|
ZSTD_frameParameters const fParams = { 1 /* contentSize */, 1 /* checksum */, 1 /* noDictID */};
|
|
ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_auto, cParams, ZSTD_defaultCMem);
|
|
size_t const initError = ZSTD_initCStream_usingCDict_advanced(zc, cdict, fParams, CNBufferSize);
|
|
if (ZSTD_isError(initError)) goto _output_error;
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
{ size_t const r = ZSTD_endStream(zc, &outBuff);
|
|
if (r != 0) goto _output_error; } /* error, or some data not flushed */
|
|
cSize = outBuff.pos;
|
|
ZSTD_freeCDict(cdict);
|
|
DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100);
|
|
}
|
|
|
|
DISPLAYLEVEL(3, "test%3i : try retrieving dictID from frame : ", testNb++);
|
|
{ U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize);
|
|
if (did != 0) goto _output_error;
|
|
}
|
|
DISPLAYLEVEL(3, "OK (not detected) \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : decompress without dictionary : ", testNb++);
|
|
{ size_t const r = ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize);
|
|
if (!ZSTD_isError(r)) goto _output_error; /* must fail : dictionary not used */
|
|
DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r));
|
|
}
|
|
|
|
DISPLAYLEVEL(3, "test%3i : compress with ZSTD_CCtx_refPrefix : ", testNb++);
|
|
CHECK_Z( ZSTD_CCtx_refPrefix(zc, dictionary.start, dictionary.filled) );
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
cSize = outBuff.pos;
|
|
DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100);
|
|
|
|
DISPLAYLEVEL(3, "test%3i : decompress with ZSTD_DCtx_refPrefix : ", testNb++);
|
|
CHECK_Z( ZSTD_DCtx_refPrefix(zd, dictionary.start, dictionary.filled) );
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.size = CNBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = compressedBuffer;
|
|
inBuff.size = cSize;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_decompressStream(zd, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
if (outBuff.pos != CNBufferSize) goto _output_error; /* must regenerate whole input */
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : decompress without dictionary (should fail): ", testNb++);
|
|
{ size_t const r = ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize);
|
|
if (!ZSTD_isError(r)) goto _output_error; /* must fail : dictionary not used */
|
|
DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r));
|
|
}
|
|
|
|
DISPLAYLEVEL(3, "test%3i : compress again with ZSTD_compressStream2 : ", testNb++);
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
cSize = outBuff.pos;
|
|
DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100);
|
|
|
|
DISPLAYLEVEL(3, "test%3i : decompress without dictionary (should work): ", testNb++);
|
|
CHECK_Z( ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize) );
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* Empty srcSize */
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_advanced with pledgedSrcSize=0 and dict : ", testNb++);
|
|
{ ZSTD_parameters params = ZSTD_getParams(5, 0, 0);
|
|
params.fParams.contentSizeFlag = 1;
|
|
CHECK_Z( ZSTD_initCStream_advanced(zc, dictionary.start, dictionary.filled, params, 0 /* pledgedSrcSize==0 means "empty" when params.fParams.contentSizeFlag is set */) );
|
|
} /* cstream advanced shall write content size = 0 */
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = 0;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error;
|
|
cSize = outBuff.pos;
|
|
if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != 0) goto _output_error;
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : pledgedSrcSize == 0 behaves properly : ", testNb++);
|
|
{ ZSTD_parameters params = ZSTD_getParams(5, 0, 0);
|
|
params.fParams.contentSizeFlag = 1;
|
|
CHECK_Z( ZSTD_initCStream_advanced(zc, NULL, 0, params, 0) );
|
|
} /* cstream advanced shall write content size = 0 */
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = 0;
|
|
inBuff.pos = 0;
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error;
|
|
cSize = outBuff.pos;
|
|
if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != 0) goto _output_error;
|
|
|
|
ZSTD_resetCStream(zc, 0); /* resetCStream should treat 0 as unknown */
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = 0;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error;
|
|
cSize = outBuff.pos;
|
|
if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != ZSTD_CONTENTSIZE_UNKNOWN) goto _output_error;
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* Basic multithreading compression test */
|
|
DISPLAYLEVEL(3, "test%3i : compress %u bytes with multiple threads : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
|
|
{ ZSTD_parameters const params = ZSTD_getParams(1, 0, 0);
|
|
int jobSize;
|
|
CHECK_Z( ZSTDMT_getMTCtxParameter(mtctx, ZSTDMT_p_jobSize, &jobSize));
|
|
CHECK(jobSize != 0, "job size non-zero");
|
|
CHECK_Z( ZSTDMT_initCStream_advanced(mtctx, CNBuffer, dictSize, params, CNBufferSize) );
|
|
CHECK_Z( ZSTDMT_getMTCtxParameter(mtctx, ZSTDMT_p_jobSize, &jobSize));
|
|
CHECK(jobSize != 0, "job size non-zero");
|
|
}
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = CNBufferSize;
|
|
inBuff.pos = 0;
|
|
{ size_t const compressResult = ZSTDMT_compressStream_generic(mtctx, &outBuff, &inBuff, ZSTD_e_end);
|
|
if (compressResult != 0) goto _output_error; /* compression must be completed in a single round */
|
|
}
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
{ size_t const compressedSize = ZSTD_findFrameCompressedSize(compressedBuffer, outBuff.pos);
|
|
if (compressedSize != outBuff.pos) goto _output_error; /* must be a full valid frame */
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* Complex multithreading + dictionary test */
|
|
{ U32 const nbWorkers = 2;
|
|
size_t const jobSize = 4 * 1 MB;
|
|
size_t const srcSize = jobSize * nbWorkers; /* we want each job to have predictable size */
|
|
size_t const segLength = 2 KB;
|
|
size_t const offset = 600 KB; /* must be larger than window defined in cdict */
|
|
size_t const start = jobSize + (offset-1);
|
|
const BYTE* const srcToCopy = (const BYTE*)CNBuffer + start;
|
|
BYTE* const dst = (BYTE*)CNBuffer + start - offset;
|
|
DISPLAYLEVEL(3, "test%3i : compress %u bytes with multiple threads + dictionary : ", testNb++, (unsigned)srcSize);
|
|
CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 3) );
|
|
CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_nbWorkers, nbWorkers) );
|
|
CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_jobSize, jobSize) );
|
|
assert(start > offset);
|
|
assert(start + segLength < COMPRESSIBLE_NOISE_LENGTH);
|
|
memcpy(dst, srcToCopy, segLength); /* create a long repetition at long distance for job 2 */
|
|
outBuff.dst = compressedBuffer;
|
|
outBuff.size = compressedBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = CNBuffer;
|
|
inBuff.size = srcSize; assert(srcSize < COMPRESSIBLE_NOISE_LENGTH);
|
|
inBuff.pos = 0;
|
|
}
|
|
{ ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, 4 KB, dictionary.filled); /* intentionally lies on estimatedSrcSize, to push cdict into targeting a small window size */
|
|
ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem);
|
|
DISPLAYLEVEL(5, "cParams.windowLog = %u : ", cParams.windowLog);
|
|
CHECK_Z( ZSTD_CCtx_refCDict(zc, cdict) );
|
|
CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) );
|
|
CHECK_Z( ZSTD_CCtx_refCDict(zc, NULL) ); /* do not keep a reference to cdict, as its lifetime ends */
|
|
ZSTD_freeCDict(cdict);
|
|
}
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
cSize = outBuff.pos;
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : decompress large frame created from multiple threads + dictionary : ", testNb++);
|
|
{ ZSTD_DStream* const dstream = ZSTD_createDCtx();
|
|
ZSTD_frameHeader zfh;
|
|
ZSTD_getFrameHeader(&zfh, compressedBuffer, cSize);
|
|
DISPLAYLEVEL(5, "frame windowsize = %u : ", (unsigned)zfh.windowSize);
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.size = CNBufferSize;
|
|
outBuff.pos = 0;
|
|
inBuff.src = compressedBuffer;
|
|
inBuff.pos = 0;
|
|
CHECK_Z( ZSTD_initDStream_usingDict(dstream, dictionary.start, dictionary.filled) );
|
|
inBuff.size = 1; /* avoid shortcut to single-pass mode */
|
|
CHECK_Z( ZSTD_decompressStream(dstream, &outBuff, &inBuff) );
|
|
inBuff.size = cSize;
|
|
CHECK_Z( ZSTD_decompressStream(dstream, &outBuff, &inBuff) );
|
|
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
|
|
ZSTD_freeDStream(dstream);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : check dictionary FSE tables can represent every code : ", testNb++);
|
|
{ unsigned const kMaxWindowLog = 24;
|
|
unsigned value;
|
|
ZSTD_compressionParameters cParams = ZSTD_getCParams(3, 1U << kMaxWindowLog, 1024);
|
|
ZSTD_CDict* cdict;
|
|
ZSTD_DDict* ddict;
|
|
SEQ_stream seq = SEQ_initStream(0x87654321);
|
|
SEQ_gen_type type;
|
|
XXH64_state_t xxh;
|
|
|
|
XXH64_reset(&xxh, 0);
|
|
cParams.windowLog = kMaxWindowLog;
|
|
cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem);
|
|
ddict = ZSTD_createDDict(dictionary.start, dictionary.filled);
|
|
|
|
if (!cdict || !ddict) goto _output_error;
|
|
|
|
ZSTD_CCtx_reset(zc, ZSTD_reset_session_only);
|
|
ZSTD_resetDStream(zd);
|
|
CHECK_Z(ZSTD_CCtx_refCDict(zc, cdict));
|
|
CHECK_Z(ZSTD_initDStream_usingDDict(zd, ddict));
|
|
CHECK_Z(ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, kMaxWindowLog));
|
|
/* Test all values < 300 */
|
|
for (value = 0; value < 300; ++value) {
|
|
for (type = (SEQ_gen_type)0; type < SEQ_gen_max; ++type) {
|
|
CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value));
|
|
}
|
|
}
|
|
/* Test values 2^8 to 2^17 */
|
|
for (value = (1 << 8); value < (1 << 17); value <<= 1) {
|
|
for (type = (SEQ_gen_type)0; type < SEQ_gen_max; ++type) {
|
|
CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value));
|
|
CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value + (value >> 2)));
|
|
}
|
|
}
|
|
/* Test offset values up to the max window log */
|
|
for (value = 8; value <= kMaxWindowLog; ++value) {
|
|
CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, SEQ_gen_of, (1U << value) - 1));
|
|
}
|
|
|
|
CHECK_Z(SEQ_roundTrip(zc, zd, &xxh, NULL, 0, ZSTD_e_end));
|
|
CHECK(SEQ_digest(&seq) != XXH64_digest(&xxh), "SEQ XXH64 does not match");
|
|
|
|
ZSTD_freeCDict(cdict);
|
|
ZSTD_freeDDict(ddict);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_srcSize sets requestedParams : ", testNb++);
|
|
{ int level;
|
|
CHECK_Z(ZSTD_initCStream_srcSize(zc, 11, ZSTD_CONTENTSIZE_UNKNOWN));
|
|
CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_compressionLevel, &level));
|
|
CHECK(level != 11, "Compression level does not match");
|
|
ZSTD_resetCStream(zc, ZSTD_CONTENTSIZE_UNKNOWN);
|
|
CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_compressionLevel, &level));
|
|
CHECK(level != 11, "Compression level does not match");
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_advanced sets requestedParams : ", testNb++);
|
|
{ ZSTD_parameters const params = ZSTD_getParams(9, 0, 0);
|
|
CHECK_Z(ZSTD_initCStream_advanced(zc, NULL, 0, params, ZSTD_CONTENTSIZE_UNKNOWN));
|
|
CHECK(badParameters(zc, params), "Compression parameters do not match");
|
|
ZSTD_resetCStream(zc, ZSTD_CONTENTSIZE_UNKNOWN);
|
|
CHECK(badParameters(zc, params), "Compression parameters do not match");
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
/* Overlen overwriting window data bug */
|
|
DISPLAYLEVEL(3, "test%3i : wildcopy doesn't overwrite potential match data : ", testNb++);
|
|
{ /* This test has a window size of 1024 bytes and consists of 3 blocks:
|
|
1. 'a' repeated 517 times
|
|
2. 'b' repeated 516 times
|
|
3. a compressed block with no literals and 3 sequence commands:
|
|
litlength = 0, offset = 24, match length = 24
|
|
litlength = 0, offset = 24, match length = 3 (this one creates an overlength write of length 2*WILDCOPY_OVERLENGTH - 3)
|
|
litlength = 0, offset = 1021, match length = 3 (this one will try to read from overwritten data if the buffer is too small) */
|
|
|
|
const char* testCase =
|
|
"\x28\xB5\x2F\xFD\x04\x00\x4C\x00\x00\x10\x61\x61\x01\x00\x00\x2A"
|
|
"\x80\x05\x44\x00\x00\x08\x62\x01\x00\x00\x2A\x20\x04\x5D\x00\x00"
|
|
"\x00\x03\x40\x00\x00\x64\x60\x27\xB0\xE0\x0C\x67\x62\xCE\xE0";
|
|
ZSTD_DStream* const zds = ZSTD_createDStream();
|
|
if (zds==NULL) goto _output_error;
|
|
|
|
CHECK_Z( ZSTD_initDStream(zds) );
|
|
inBuff.src = testCase;
|
|
inBuff.size = 47;
|
|
inBuff.pos = 0;
|
|
outBuff.dst = decodedBuffer;
|
|
outBuff.size = CNBufferSize;
|
|
outBuff.pos = 0;
|
|
|
|
while (inBuff.pos < inBuff.size) {
|
|
CHECK_Z( ZSTD_decompressStream(zds, &outBuff, &inBuff) );
|
|
}
|
|
|
|
ZSTD_freeDStream(zds);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : dictionary + uncompressible block + reusing tables checks offset table validity: ", testNb++);
|
|
{ ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(
|
|
dictionary.start, dictionary.filled,
|
|
ZSTD_dlm_byRef, ZSTD_dct_fullDict,
|
|
ZSTD_getCParams(3, 0, dictionary.filled),
|
|
ZSTD_defaultCMem);
|
|
const size_t inbufsize = 2 * 128 * 1024; /* 2 blocks */
|
|
const size_t outbufsize = ZSTD_compressBound(inbufsize);
|
|
size_t inbufpos = 0;
|
|
size_t cursegmentlen;
|
|
BYTE *inbuf = (BYTE *)malloc(inbufsize);
|
|
BYTE *outbuf = (BYTE *)malloc(outbufsize);
|
|
BYTE *checkbuf = (BYTE *)malloc(inbufsize);
|
|
size_t ret;
|
|
|
|
CHECK(cdict == NULL, "failed to alloc cdict");
|
|
CHECK(inbuf == NULL, "failed to alloc input buffer");
|
|
|
|
/* first block is uncompressible */
|
|
cursegmentlen = 128 * 1024;
|
|
RDG_genBuffer(inbuf + inbufpos, cursegmentlen, 0., 0., seed);
|
|
inbufpos += cursegmentlen;
|
|
|
|
/* second block is compressible */
|
|
cursegmentlen = 128 * 1024 - 256;
|
|
RDG_genBuffer(inbuf + inbufpos, cursegmentlen, 0.05, 0., seed);
|
|
inbufpos += cursegmentlen;
|
|
|
|
/* and includes a very long backref */
|
|
cursegmentlen = 128;
|
|
memcpy(inbuf + inbufpos, dictionary.start + 256, cursegmentlen);
|
|
inbufpos += cursegmentlen;
|
|
|
|
/* and includes a very long backref */
|
|
cursegmentlen = 128;
|
|
memcpy(inbuf + inbufpos, dictionary.start + 128, cursegmentlen);
|
|
inbufpos += cursegmentlen;
|
|
|
|
ret = ZSTD_compress_usingCDict(zc, outbuf, outbufsize, inbuf, inbufpos, cdict);
|
|
CHECK_Z(ret);
|
|
|
|
ret = ZSTD_decompress_usingDict(zd, checkbuf, inbufsize, outbuf, ret, dictionary.start, dictionary.filled);
|
|
CHECK_Z(ret);
|
|
|
|
CHECK(memcmp(inbuf, checkbuf, inbufpos), "start and finish buffers don't match");
|
|
|
|
ZSTD_freeCDict(cdict);
|
|
free(inbuf);
|
|
free(outbuf);
|
|
free(checkbuf);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
DISPLAYLEVEL(3, "test%3i : dictionary + small blocks + reusing tables checks offset table validity: ", testNb++);
|
|
{ ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(
|
|
dictionary.start, dictionary.filled,
|
|
ZSTD_dlm_byRef, ZSTD_dct_fullDict,
|
|
ZSTD_getCParams(3, 0, dictionary.filled),
|
|
ZSTD_defaultCMem);
|
|
ZSTD_outBuffer out = {compressedBuffer, compressedBufferSize, 0};
|
|
int remainingInput = 256 * 1024;
|
|
int offset;
|
|
|
|
CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters));
|
|
CHECK_Z(ZSTD_CCtx_refCDict(zc, cdict));
|
|
CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_checksumFlag, 1));
|
|
/* Write a bunch of 6 byte blocks */
|
|
while (remainingInput > 0) {
|
|
char testBuffer[6] = "\xAA\xAA\xAA\xAA\xAA\xAA";
|
|
const size_t kSmallBlockSize = sizeof(testBuffer);
|
|
ZSTD_inBuffer in = {testBuffer, kSmallBlockSize, 0};
|
|
|
|
CHECK_Z(ZSTD_compressStream2(zc, &out, &in, ZSTD_e_flush));
|
|
CHECK(in.pos != in.size, "input not fully consumed");
|
|
remainingInput -= kSmallBlockSize;
|
|
}
|
|
/* Write several very long offset matches into the dictionary */
|
|
for (offset = 1024; offset >= 0; offset -= 128) {
|
|
ZSTD_inBuffer in = {dictionary.start + offset, 128, 0};
|
|
ZSTD_EndDirective flush = offset > 0 ? ZSTD_e_continue : ZSTD_e_end;
|
|
CHECK_Z(ZSTD_compressStream2(zc, &out, &in, flush));
|
|
CHECK(in.pos != in.size, "input not fully consumed");
|
|
}
|
|
/* Ensure decompression works */
|
|
CHECK_Z(ZSTD_decompress_usingDict(zd, decodedBuffer, CNBufferSize, out.dst, out.pos, dictionary.start, dictionary.filled));
|
|
|
|
ZSTD_freeCDict(cdict);
|
|
}
|
|
DISPLAYLEVEL(3, "OK \n");
|
|
|
|
_end:
|
|
FUZ_freeDictionary(dictionary);
|
|
ZSTD_freeCStream(zc);
|
|
ZSTD_freeDStream(zd);
|
|
ZSTDMT_freeCCtx(mtctx);
|
|
free(CNBuffer);
|
|
free(compressedBuffer);
|
|
free(decodedBuffer);
|
|
return testResult;
|
|
|
|
_output_error:
|
|
testResult = 1;
|
|
DISPLAY("Error detected in Unit tests ! \n");
|
|
goto _end;
|
|
}
|
|
|
|
|
|
/* ====== Fuzzer tests ====== */
|
|
|
|
static size_t findDiff(const void* buf1, const void* buf2, size_t max)
|
|
{
|
|
const BYTE* b1 = (const BYTE*)buf1;
|
|
const BYTE* b2 = (const BYTE*)buf2;
|
|
size_t u;
|
|
for (u=0; u<max; u++) {
|
|
if (b1[u] != b2[u]) break;
|
|
}
|
|
if (u==max) {
|
|
DISPLAY("=> No difference detected within %u bytes \n", (unsigned)max);
|
|
return u;
|
|
}
|
|
DISPLAY("Error at position %u / %u \n", (unsigned)u, (unsigned)max);
|
|
if (u>=3)
|
|
DISPLAY(" %02X %02X %02X ",
|
|
b1[u-3], b1[u-2], b1[u-1]);
|
|
DISPLAY(" :%02X: %02X %02X %02X %02X %02X \n",
|
|
b1[u], b1[u+1], b1[u+2], b1[u+3], b1[u+4], b1[u+5]);
|
|
if (u>=3)
|
|
DISPLAY(" %02X %02X %02X ",
|
|
b2[u-3], b2[u-2], b2[u-1]);
|
|
DISPLAY(" :%02X: %02X %02X %02X %02X %02X \n",
|
|
b2[u], b2[u+1], b2[u+2], b2[u+3], b2[u+4], b2[u+5]);
|
|
return u;
|
|
}
|
|
|
|
static size_t FUZ_rLogLength(U32* seed, U32 logLength)
|
|
{
|
|
size_t const lengthMask = ((size_t)1 << logLength) - 1;
|
|
return (lengthMask+1) + (FUZ_rand(seed) & lengthMask);
|
|
}
|
|
|
|
static size_t FUZ_randomLength(U32* seed, U32 maxLog)
|
|
{
|
|
U32 const logLength = FUZ_rand(seed) % maxLog;
|
|
return FUZ_rLogLength(seed, logLength);
|
|
}
|
|
|
|
/* Return value in range minVal <= v <= maxVal */
|
|
static U32 FUZ_randomClampedLength(U32* seed, U32 minVal, U32 maxVal)
|
|
{
|
|
U32 const mod = maxVal < minVal ? 1 : (maxVal + 1) - minVal;
|
|
return (U32)((FUZ_rand(seed) % mod) + minVal);
|
|
}
|
|
|
|
static int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressibility, int bigTests)
|
|
{
|
|
U32 const maxSrcLog = bigTests ? 24 : 22;
|
|
static const U32 maxSampleLog = 19;
|
|
size_t const srcBufferSize = (size_t)1<<maxSrcLog;
|
|
BYTE* cNoiseBuffer[5];
|
|
size_t const copyBufferSize = srcBufferSize + (1<<maxSampleLog);
|
|
BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize);
|
|
size_t const cBufferSize = ZSTD_compressBound(srcBufferSize);
|
|
BYTE* const cBuffer = (BYTE*)malloc (cBufferSize);
|
|
size_t const dstBufferSize = srcBufferSize;
|
|
BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize);
|
|
U32 result = 0;
|
|
unsigned testNb = 0;
|
|
U32 coreSeed = seed;
|
|
ZSTD_CStream* zc = ZSTD_createCStream(); /* will be re-created sometimes */
|
|
ZSTD_DStream* zd = ZSTD_createDStream(); /* will be re-created sometimes */
|
|
ZSTD_DStream* const zd_noise = ZSTD_createDStream();
|
|
UTIL_time_t const startClock = UTIL_getTime();
|
|
const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */
|
|
size_t dictSize = 0;
|
|
U32 oldTestLog = 0;
|
|
U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel() : g_cLevelMax_smallTests;
|
|
|
|
/* allocations */
|
|
cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize);
|
|
CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] ||
|
|
!copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise ,
|
|
"Not enough memory, fuzzer tests cancelled");
|
|
|
|
/* Create initial samples */
|
|
RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */
|
|
RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */
|
|
RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed);
|
|
RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */
|
|
RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */
|
|
memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */
|
|
ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */
|
|
|
|
/* catch up testNb */
|
|
for (testNb=1; testNb < startTest; testNb++)
|
|
FUZ_rand(&coreSeed);
|
|
|
|
/* test loop */
|
|
for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) {
|
|
U32 lseed;
|
|
const BYTE* srcBuffer;
|
|
size_t totalTestSize, totalGenSize, cSize;
|
|
XXH64_state_t xxhState;
|
|
U64 crcOrig;
|
|
U32 resetAllowed = 1;
|
|
size_t maxTestSize;
|
|
|
|
/* init */
|
|
FUZ_rand(&coreSeed);
|
|
lseed = coreSeed ^ prime32;
|
|
if (nbTests >= testNb) {
|
|
DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests);
|
|
} else {
|
|
DISPLAYUPDATE(2, "\r%6u ", testNb);
|
|
}
|
|
|
|
/* states full reset (deliberately not synchronized) */
|
|
/* some issues can only happen when reusing states */
|
|
if ((FUZ_rand(&lseed) & 0xFF) == 131) {
|
|
ZSTD_freeCStream(zc);
|
|
zc = ZSTD_createCStream();
|
|
CHECK(zc==NULL, "ZSTD_createCStream : allocation error");
|
|
resetAllowed=0;
|
|
}
|
|
if ((FUZ_rand(&lseed) & 0xFF) == 132) {
|
|
ZSTD_freeDStream(zd);
|
|
zd = ZSTD_createDStream();
|
|
CHECK(zd==NULL, "ZSTD_createDStream : allocation error");
|
|
CHECK_Z( ZSTD_initDStream_usingDict(zd, NULL, 0) ); /* ensure at least one init */
|
|
}
|
|
|
|
/* srcBuffer selection [0-4] */
|
|
{ U32 buffNb = FUZ_rand(&lseed) & 0x7F;
|
|
if (buffNb & 7) buffNb=2; /* most common : compressible (P) */
|
|
else {
|
|
buffNb >>= 3;
|
|
if (buffNb & 7) {
|
|
const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} else {
|
|
const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} }
|
|
srcBuffer = cNoiseBuffer[buffNb];
|
|
}
|
|
|
|
/* compression init */
|
|
if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */
|
|
&& oldTestLog /* at least one test happened */ && resetAllowed) {
|
|
maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2);
|
|
maxTestSize = MIN(maxTestSize, srcBufferSize-16);
|
|
{ U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? 0 : maxTestSize;
|
|
CHECK_Z( ZSTD_resetCStream(zc, pledgedSrcSize) );
|
|
}
|
|
} else {
|
|
U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
U32 const cLevelCandidate = ( FUZ_rand(&lseed) %
|
|
(ZSTD_maxCLevel() -
|
|
(MAX(testLog, dictLog) / 3)))
|
|
+ 1;
|
|
U32 const cLevel = MIN(cLevelCandidate, cLevelMax);
|
|
maxTestSize = FUZ_rLogLength(&lseed, testLog);
|
|
oldTestLog = testLog;
|
|
/* random dictionary selection */
|
|
dictSize = ((FUZ_rand(&lseed)&7)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0;
|
|
{ size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize);
|
|
dict = srcBuffer + dictStart;
|
|
}
|
|
{ U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize;
|
|
ZSTD_parameters params = ZSTD_getParams(cLevel, pledgedSrcSize, dictSize);
|
|
params.fParams.checksumFlag = FUZ_rand(&lseed) & 1;
|
|
params.fParams.noDictIDFlag = FUZ_rand(&lseed) & 1;
|
|
params.fParams.contentSizeFlag = FUZ_rand(&lseed) & 1;
|
|
CHECK_Z ( ZSTD_initCStream_advanced(zc, dict, dictSize, params, pledgedSrcSize) );
|
|
} }
|
|
|
|
/* multi-segments compression test */
|
|
XXH64_reset(&xxhState, 0);
|
|
{ ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ;
|
|
U32 n;
|
|
for (n=0, cSize=0, totalTestSize=0 ; totalTestSize < maxTestSize ; n++) {
|
|
/* compress random chunks into randomly sized dst buffers */
|
|
{ size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const srcSize = MIN(maxTestSize-totalTestSize, randomSrcSize);
|
|
size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 };
|
|
outBuff.size = outBuff.pos + dstBuffSize;
|
|
|
|
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
|
|
|
|
XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos);
|
|
memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos);
|
|
totalTestSize += inBuff.pos;
|
|
}
|
|
|
|
/* random flush operation, to mess around */
|
|
if ((FUZ_rand(&lseed) & 15) == 0) {
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
CHECK_Z( ZSTD_flushStream(zc, &outBuff) );
|
|
} }
|
|
|
|
/* final frame epilogue */
|
|
{ size_t remainingToFlush = (size_t)(-1);
|
|
while (remainingToFlush) {
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
remainingToFlush = ZSTD_endStream(zc, &outBuff);
|
|
CHECK (ZSTD_isError(remainingToFlush), "end error : %s", ZSTD_getErrorName(remainingToFlush));
|
|
} }
|
|
crcOrig = XXH64_digest(&xxhState);
|
|
cSize = outBuff.pos;
|
|
}
|
|
|
|
/* multi - fragments decompression test */
|
|
if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) {
|
|
CHECK_Z ( ZSTD_resetDStream(zd) );
|
|
} else {
|
|
CHECK_Z ( ZSTD_initDStream_usingDict(zd, dict, dictSize) );
|
|
}
|
|
{ size_t decompressionResult = 1;
|
|
ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 };
|
|
ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 };
|
|
for (totalGenSize = 0 ; decompressionResult ; ) {
|
|
size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize);
|
|
inBuff.size = inBuff.pos + readCSrcSize;
|
|
outBuff.size = outBuff.pos + dstBuffSize;
|
|
decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_getErrorCode(decompressionResult) == ZSTD_error_checksum_wrong) {
|
|
DISPLAY("checksum error : \n");
|
|
findDiff(copyBuffer, dstBuffer, totalTestSize);
|
|
}
|
|
CHECK( ZSTD_isError(decompressionResult), "decompression error : %s",
|
|
ZSTD_getErrorName(decompressionResult) );
|
|
}
|
|
CHECK (decompressionResult != 0, "frame not fully decoded");
|
|
CHECK (outBuff.pos != totalTestSize, "decompressed data : wrong size (%u != %u)",
|
|
(unsigned)outBuff.pos, (unsigned)totalTestSize);
|
|
CHECK (inBuff.pos != cSize, "compressed data should be fully read")
|
|
{ U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0);
|
|
if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize);
|
|
CHECK (crcDest!=crcOrig, "decompressed data corrupted");
|
|
} }
|
|
|
|
/*===== noisy/erroneous src decompression test =====*/
|
|
|
|
/* add some noise */
|
|
{ U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2;
|
|
U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) {
|
|
size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const noiseSize = MIN((cSize/3) , randomNoiseSize);
|
|
size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize);
|
|
size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize);
|
|
memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize);
|
|
} }
|
|
|
|
/* try decompression on noisy data */
|
|
CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */
|
|
{ ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 };
|
|
ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 };
|
|
while (outBuff.pos < dstBufferSize) {
|
|
size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize);
|
|
size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize);
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
inBuff.size = inBuff.pos + adjustedCSrcSize;
|
|
{ size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(decompressError)) break; /* error correctly detected */
|
|
/* No forward progress possible */
|
|
if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break;
|
|
} } } }
|
|
DISPLAY("\r%u fuzzer tests completed \n", testNb);
|
|
|
|
_cleanup:
|
|
ZSTD_freeCStream(zc);
|
|
ZSTD_freeDStream(zd);
|
|
ZSTD_freeDStream(zd_noise);
|
|
free(cNoiseBuffer[0]);
|
|
free(cNoiseBuffer[1]);
|
|
free(cNoiseBuffer[2]);
|
|
free(cNoiseBuffer[3]);
|
|
free(cNoiseBuffer[4]);
|
|
free(copyBuffer);
|
|
free(cBuffer);
|
|
free(dstBuffer);
|
|
return result;
|
|
|
|
_output_error:
|
|
result = 1;
|
|
goto _cleanup;
|
|
}
|
|
|
|
|
|
/* fuzzing ZSTDMT_* interface */
|
|
static int fuzzerTests_MT(U32 seed, int nbTests, int startTest,
|
|
double compressibility, int bigTests)
|
|
{
|
|
const U32 maxSrcLog = bigTests ? 24 : 22;
|
|
static const U32 maxSampleLog = 19;
|
|
size_t const srcBufferSize = (size_t)1<<maxSrcLog;
|
|
BYTE* cNoiseBuffer[5];
|
|
size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog);
|
|
BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize);
|
|
size_t const cBufferSize = ZSTD_compressBound(srcBufferSize);
|
|
BYTE* const cBuffer = (BYTE*)malloc (cBufferSize);
|
|
size_t const dstBufferSize = srcBufferSize;
|
|
BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize);
|
|
U32 result = 0;
|
|
int testNb = 0;
|
|
U32 coreSeed = seed;
|
|
int nbThreads = 2;
|
|
ZSTDMT_CCtx* zc = ZSTDMT_createCCtx(nbThreads); /* will be reset sometimes */
|
|
ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */
|
|
ZSTD_DStream* const zd_noise = ZSTD_createDStream();
|
|
UTIL_time_t const startClock = UTIL_getTime();
|
|
const BYTE* dict=NULL; /* can keep same dict on 2 consecutive tests */
|
|
size_t dictSize = 0;
|
|
int const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel()-1 : g_cLevelMax_smallTests;
|
|
U32 const nbThreadsMax = bigTests ? 4 : 2;
|
|
|
|
/* allocations */
|
|
cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize);
|
|
CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] ||
|
|
!copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise ,
|
|
"Not enough memory, fuzzer tests cancelled");
|
|
|
|
/* Create initial samples */
|
|
RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */
|
|
RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */
|
|
RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed);
|
|
RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */
|
|
RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */
|
|
memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */
|
|
ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */
|
|
DISPLAYLEVEL(6, "Creating initial context with %i threads \n", nbThreads);
|
|
|
|
/* catch up testNb */
|
|
for (testNb=1; testNb < startTest; testNb++)
|
|
FUZ_rand(&coreSeed);
|
|
|
|
/* test loop */
|
|
for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) {
|
|
U32 lseed;
|
|
const BYTE* srcBuffer;
|
|
size_t totalTestSize, totalGenSize, cSize;
|
|
XXH64_state_t xxhState;
|
|
U64 crcOrig;
|
|
size_t maxTestSize;
|
|
|
|
FUZ_rand(&coreSeed);
|
|
if (nbTests >= testNb) {
|
|
DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests);
|
|
} else {
|
|
DISPLAYUPDATE(2, "\r%6u ", testNb);
|
|
}
|
|
lseed = coreSeed ^ prime32;
|
|
|
|
/* states full reset (deliberately not synchronized) */
|
|
/* some issues can only happen when reusing states */
|
|
if ((FUZ_rand(&lseed) & 0xFF) == 131) {
|
|
nbThreads = (FUZ_rand(&lseed) % nbThreadsMax) + 1;
|
|
DISPLAYLEVEL(5, "Creating new context with %u threads \n", nbThreads);
|
|
ZSTDMT_freeCCtx(zc);
|
|
zc = ZSTDMT_createCCtx(nbThreads);
|
|
CHECK(zc==NULL, "ZSTDMT_createCCtx allocation error")
|
|
}
|
|
if ((FUZ_rand(&lseed) & 0xFF) == 132) {
|
|
ZSTD_freeDStream(zd);
|
|
zd = ZSTD_createDStream();
|
|
CHECK(zd==NULL, "ZSTDMT_createCCtx allocation error")
|
|
ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */
|
|
}
|
|
|
|
/* srcBuffer selection [0-4] */
|
|
{ U32 buffNb = FUZ_rand(&lseed) & 0x7F;
|
|
if (buffNb & 7) buffNb=2; /* most common : compressible (P) */
|
|
else {
|
|
buffNb >>= 3;
|
|
if (buffNb & 7) {
|
|
const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} else {
|
|
const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} }
|
|
srcBuffer = cNoiseBuffer[buffNb];
|
|
}
|
|
|
|
/* compression init */
|
|
{ U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
int const cLevelCandidate = ( FUZ_rand(&lseed)
|
|
% (ZSTD_maxCLevel() - (MAX(testLog, dictLog) / 2)) )
|
|
+ 1;
|
|
int const cLevelThreadAdjusted = cLevelCandidate - (nbThreads * 2) + 2; /* reduce cLevel when multiple threads to reduce memory consumption */
|
|
int const cLevelMin = MAX(cLevelThreadAdjusted, 1); /* no negative cLevel yet */
|
|
int const cLevel = MIN(cLevelMin, cLevelMax);
|
|
maxTestSize = FUZ_rLogLength(&lseed, testLog);
|
|
|
|
if (FUZ_rand(&lseed)&1) { /* simple init */
|
|
int const compressionLevel = (FUZ_rand(&lseed) % 5) + 1;
|
|
DISPLAYLEVEL(5, "Init with compression level = %i \n", compressionLevel);
|
|
CHECK_Z( ZSTDMT_initCStream(zc, compressionLevel) );
|
|
} else { /* advanced init */
|
|
/* random dictionary selection */
|
|
dictSize = ((FUZ_rand(&lseed)&63)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0;
|
|
{ size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize);
|
|
dict = srcBuffer + dictStart;
|
|
}
|
|
{ U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize;
|
|
ZSTD_parameters params = ZSTD_getParams(cLevel, pledgedSrcSize, dictSize);
|
|
DISPLAYLEVEL(5, "Init with windowLog = %u, pledgedSrcSize = %u, dictSize = %u \n",
|
|
params.cParams.windowLog, (unsigned)pledgedSrcSize, (unsigned)dictSize);
|
|
params.fParams.checksumFlag = FUZ_rand(&lseed) & 1;
|
|
params.fParams.noDictIDFlag = FUZ_rand(&lseed) & 1;
|
|
params.fParams.contentSizeFlag = FUZ_rand(&lseed) & 1;
|
|
DISPLAYLEVEL(5, "checksumFlag : %u \n", params.fParams.checksumFlag);
|
|
CHECK_Z( ZSTDMT_setMTCtxParameter(zc, ZSTDMT_p_overlapLog, FUZ_rand(&lseed) % 12) );
|
|
CHECK_Z( ZSTDMT_setMTCtxParameter(zc, ZSTDMT_p_jobSize, FUZ_rand(&lseed) % (2*maxTestSize+1)) ); /* custom job size */
|
|
CHECK_Z( ZSTDMT_initCStream_advanced(zc, dict, dictSize, params, pledgedSrcSize) );
|
|
} } }
|
|
|
|
/* multi-segments compression test */
|
|
XXH64_reset(&xxhState, 0);
|
|
{ ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ;
|
|
U32 n;
|
|
for (n=0, cSize=0, totalTestSize=0 ; totalTestSize < maxTestSize ; n++) {
|
|
/* compress random chunks into randomly sized dst buffers */
|
|
{ size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const srcSize = MIN (maxTestSize-totalTestSize, randomSrcSize);
|
|
size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 };
|
|
outBuff.size = outBuff.pos + dstBuffSize;
|
|
|
|
DISPLAYLEVEL(6, "Sending %u bytes to compress \n", (unsigned)srcSize);
|
|
CHECK_Z( ZSTDMT_compressStream(zc, &outBuff, &inBuff) );
|
|
DISPLAYLEVEL(6, "%u bytes read by ZSTDMT_compressStream \n", (unsigned)inBuff.pos);
|
|
|
|
XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos);
|
|
memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos);
|
|
totalTestSize += inBuff.pos;
|
|
}
|
|
|
|
/* random flush operation, to mess around */
|
|
if ((FUZ_rand(&lseed) & 15) == 0) {
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
size_t const previousPos = outBuff.pos;
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
DISPLAYLEVEL(5, "Flushing into dst buffer of size %u \n", (unsigned)adjustedDstSize);
|
|
CHECK_Z( ZSTDMT_flushStream(zc, &outBuff) );
|
|
assert(outBuff.pos >= previousPos);
|
|
DISPLAYLEVEL(6, "%u bytes flushed by ZSTDMT_flushStream \n", (unsigned)(outBuff.pos-previousPos));
|
|
} }
|
|
|
|
/* final frame epilogue */
|
|
{ size_t remainingToFlush = (size_t)(-1);
|
|
while (remainingToFlush) {
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
size_t const previousPos = outBuff.pos;
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
DISPLAYLEVEL(5, "Ending into dst buffer of size %u \n", (unsigned)adjustedDstSize);
|
|
remainingToFlush = ZSTDMT_endStream(zc, &outBuff);
|
|
CHECK (ZSTD_isError(remainingToFlush), "ZSTDMT_endStream error : %s", ZSTD_getErrorName(remainingToFlush));
|
|
assert(outBuff.pos >= previousPos);
|
|
DISPLAYLEVEL(6, "%u bytes flushed by ZSTDMT_endStream \n", (unsigned)(outBuff.pos-previousPos));
|
|
DISPLAYLEVEL(5, "endStream : remainingToFlush : %u \n", (unsigned)remainingToFlush);
|
|
} }
|
|
crcOrig = XXH64_digest(&xxhState);
|
|
cSize = outBuff.pos;
|
|
DISPLAYLEVEL(5, "Frame completed : %u bytes compressed into %u bytes \n",
|
|
(unsigned)totalTestSize, (unsigned)cSize);
|
|
}
|
|
|
|
/* multi - fragments decompression test */
|
|
assert(totalTestSize < dstBufferSize);
|
|
memset(dstBuffer, 170, totalTestSize); /* init dest area */
|
|
if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) {
|
|
CHECK_Z( ZSTD_resetDStream(zd) );
|
|
} else {
|
|
CHECK_Z( ZSTD_initDStream_usingDict(zd, dict, dictSize) );
|
|
}
|
|
{ size_t decompressionResult = 1;
|
|
ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 };
|
|
ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 };
|
|
for (totalGenSize = 0 ; decompressionResult ; ) {
|
|
size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize);
|
|
inBuff.size = inBuff.pos + readCSrcSize;
|
|
outBuff.size = outBuff.pos + dstBuffSize;
|
|
DISPLAYLEVEL(6, "ZSTD_decompressStream input %u bytes into outBuff %u bytes \n",
|
|
(unsigned)readCSrcSize, (unsigned)dstBuffSize);
|
|
decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(decompressionResult)) {
|
|
DISPLAY("ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(decompressionResult));
|
|
findDiff(copyBuffer, dstBuffer, totalTestSize);
|
|
}
|
|
CHECK (ZSTD_isError(decompressionResult), "decompression error : %s", ZSTD_getErrorName(decompressionResult));
|
|
DISPLAYLEVEL(6, "total ingested (inBuff.pos) = %u and produced (outBuff.pos) = %u \n",
|
|
(unsigned)inBuff.pos, (unsigned)outBuff.pos);
|
|
}
|
|
CHECK (outBuff.pos != totalTestSize,
|
|
"decompressed data : wrong size (%u != %u)",
|
|
(unsigned)outBuff.pos, (unsigned)totalTestSize );
|
|
CHECK (inBuff.pos != cSize,
|
|
"compressed data should be fully read (%u != %u)",
|
|
(unsigned)inBuff.pos, (unsigned)cSize );
|
|
{ U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0);
|
|
if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize);
|
|
CHECK (crcDest!=crcOrig, "decompressed data corrupted");
|
|
} }
|
|
|
|
/*===== noisy/erroneous src decompression test =====*/
|
|
|
|
/* add some noise */
|
|
{ U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2;
|
|
U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) {
|
|
size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const noiseSize = MIN((cSize/3) , randomNoiseSize);
|
|
size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize);
|
|
size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize);
|
|
memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize);
|
|
} }
|
|
|
|
/* try decompression on noisy data */
|
|
CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */
|
|
{ ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 };
|
|
ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 };
|
|
while (outBuff.pos < dstBufferSize) {
|
|
size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize);
|
|
size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize);
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
inBuff.size = inBuff.pos + adjustedCSrcSize;
|
|
{ size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(decompressError)) break; /* error correctly detected */
|
|
/* No forward progress possible */
|
|
if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break;
|
|
} } } }
|
|
DISPLAY("\r%u fuzzer tests completed \n", testNb);
|
|
|
|
_cleanup:
|
|
ZSTDMT_freeCCtx(zc);
|
|
ZSTD_freeDStream(zd);
|
|
ZSTD_freeDStream(zd_noise);
|
|
free(cNoiseBuffer[0]);
|
|
free(cNoiseBuffer[1]);
|
|
free(cNoiseBuffer[2]);
|
|
free(cNoiseBuffer[3]);
|
|
free(cNoiseBuffer[4]);
|
|
free(copyBuffer);
|
|
free(cBuffer);
|
|
free(dstBuffer);
|
|
return result;
|
|
|
|
_output_error:
|
|
result = 1;
|
|
goto _cleanup;
|
|
}
|
|
|
|
/** If useOpaqueAPI, sets param in cctxParams.
|
|
* Otherwise, sets the param in zc. */
|
|
static size_t setCCtxParameter(ZSTD_CCtx* zc, ZSTD_CCtx_params* cctxParams,
|
|
ZSTD_cParameter param, unsigned value,
|
|
int useOpaqueAPI)
|
|
{
|
|
if (useOpaqueAPI) {
|
|
return ZSTD_CCtxParams_setParameter(cctxParams, param, value);
|
|
} else {
|
|
return ZSTD_CCtx_setParameter(zc, param, value);
|
|
}
|
|
}
|
|
|
|
/* Tests for ZSTD_compress_generic() API */
|
|
static int fuzzerTests_newAPI(U32 seed, int nbTests, int startTest,
|
|
double compressibility, int bigTests)
|
|
{
|
|
U32 const maxSrcLog = bigTests ? 24 : 22;
|
|
static const U32 maxSampleLog = 19;
|
|
size_t const srcBufferSize = (size_t)1<<maxSrcLog;
|
|
BYTE* cNoiseBuffer[5];
|
|
size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog);
|
|
BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize);
|
|
size_t const cBufferSize = ZSTD_compressBound(srcBufferSize);
|
|
BYTE* const cBuffer = (BYTE*)malloc (cBufferSize);
|
|
size_t const dstBufferSize = srcBufferSize;
|
|
BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize);
|
|
U32 result = 0;
|
|
int testNb = 0;
|
|
U32 coreSeed = seed;
|
|
ZSTD_CCtx* zc = ZSTD_createCCtx(); /* will be reset sometimes */
|
|
ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */
|
|
ZSTD_DStream* const zd_noise = ZSTD_createDStream();
|
|
UTIL_time_t const startClock = UTIL_getTime();
|
|
const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */
|
|
size_t dictSize = 0;
|
|
U32 oldTestLog = 0;
|
|
U32 windowLogMalus = 0; /* can survive between 2 loops */
|
|
U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel()-1 : g_cLevelMax_smallTests;
|
|
U32 const nbThreadsMax = bigTests ? 4 : 2;
|
|
ZSTD_CCtx_params* cctxParams = ZSTD_createCCtxParams();
|
|
|
|
/* allocations */
|
|
cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize);
|
|
cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize);
|
|
CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] ||
|
|
!copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise ,
|
|
"Not enough memory, fuzzer tests cancelled");
|
|
|
|
/* Create initial samples */
|
|
RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */
|
|
RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */
|
|
RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed);
|
|
RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */
|
|
RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */
|
|
memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */
|
|
CHECK_Z( ZSTD_initDStream_usingDict(zd, NULL, 0) ); /* ensure at least one init */
|
|
|
|
/* catch up testNb */
|
|
for (testNb=1; testNb < startTest; testNb++)
|
|
FUZ_rand(&coreSeed);
|
|
|
|
/* test loop */
|
|
for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) {
|
|
U32 lseed;
|
|
int opaqueAPI;
|
|
const BYTE* srcBuffer;
|
|
size_t totalTestSize, totalGenSize, cSize;
|
|
XXH64_state_t xxhState;
|
|
U64 crcOrig;
|
|
U32 resetAllowed = 1;
|
|
size_t maxTestSize;
|
|
ZSTD_parameters savedParams;
|
|
|
|
/* init */
|
|
if (nbTests >= testNb) { DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); }
|
|
else { DISPLAYUPDATE(2, "\r%6u ", testNb); }
|
|
FUZ_rand(&coreSeed);
|
|
lseed = coreSeed ^ prime32;
|
|
DISPLAYLEVEL(5, " *** Test %u *** \n", testNb);
|
|
opaqueAPI = FUZ_rand(&lseed) & 1;
|
|
|
|
/* states full reset (deliberately not synchronized) */
|
|
/* some issues can only happen when reusing states */
|
|
if ((FUZ_rand(&lseed) & 0xFF) == 131) {
|
|
DISPLAYLEVEL(5, "Creating new context \n");
|
|
ZSTD_freeCCtx(zc);
|
|
zc = ZSTD_createCCtx();
|
|
CHECK(zc == NULL, "ZSTD_createCCtx allocation error");
|
|
resetAllowed = 0;
|
|
}
|
|
if ((FUZ_rand(&lseed) & 0xFF) == 132) {
|
|
ZSTD_freeDStream(zd);
|
|
zd = ZSTD_createDStream();
|
|
CHECK(zd == NULL, "ZSTD_createDStream allocation error");
|
|
ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */
|
|
}
|
|
|
|
/* srcBuffer selection [0-4] */
|
|
{ U32 buffNb = FUZ_rand(&lseed) & 0x7F;
|
|
if (buffNb & 7) buffNb=2; /* most common : compressible (P) */
|
|
else {
|
|
buffNb >>= 3;
|
|
if (buffNb & 7) {
|
|
const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} else {
|
|
const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */
|
|
buffNb = tnb[buffNb >> 3];
|
|
} }
|
|
srcBuffer = cNoiseBuffer[buffNb];
|
|
}
|
|
|
|
/* compression init */
|
|
CHECK_Z( ZSTD_CCtx_loadDictionary(zc, NULL, 0) ); /* cancel previous dict /*/
|
|
if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */
|
|
&& oldTestLog /* at least one test happened */
|
|
&& resetAllowed) {
|
|
/* just set a compression level */
|
|
maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2);
|
|
if (maxTestSize >= srcBufferSize) maxTestSize = srcBufferSize-1;
|
|
{ int const compressionLevel = (FUZ_rand(&lseed) % 5) + 1;
|
|
DISPLAYLEVEL(5, "t%u : compression level : %i \n", testNb, compressionLevel);
|
|
CHECK_Z (setCCtxParameter(zc, cctxParams, ZSTD_c_compressionLevel, compressionLevel, opaqueAPI) );
|
|
}
|
|
} else {
|
|
U32 const testLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog;
|
|
U32 const cLevelCandidate = (FUZ_rand(&lseed) %
|
|
(ZSTD_maxCLevel() -
|
|
(MAX(testLog, dictLog) / 2))) +
|
|
1;
|
|
int const cLevel = MIN(cLevelCandidate, cLevelMax);
|
|
DISPLAYLEVEL(5, "t%i: base cLevel : %u \n", testNb, cLevel);
|
|
maxTestSize = FUZ_rLogLength(&lseed, testLog);
|
|
DISPLAYLEVEL(5, "t%i: maxTestSize : %u \n", testNb, (unsigned)maxTestSize);
|
|
oldTestLog = testLog;
|
|
/* random dictionary selection */
|
|
dictSize = ((FUZ_rand(&lseed)&63)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0;
|
|
{ size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize);
|
|
dict = srcBuffer + dictStart;
|
|
if (!dictSize) dict=NULL;
|
|
}
|
|
{ U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize;
|
|
ZSTD_compressionParameters cParams = ZSTD_getCParams(cLevel, pledgedSrcSize, dictSize);
|
|
const U32 windowLogMax = bigTests ? 24 : 20;
|
|
const U32 searchLogMax = bigTests ? 15 : 13;
|
|
if (dictSize)
|
|
DISPLAYLEVEL(5, "t%u: with dictionary of size : %zu \n", testNb, dictSize);
|
|
|
|
/* mess with compression parameters */
|
|
cParams.windowLog += (FUZ_rand(&lseed) & 3) - 1;
|
|
cParams.windowLog = MIN(windowLogMax, cParams.windowLog);
|
|
cParams.hashLog += (FUZ_rand(&lseed) & 3) - 1;
|
|
cParams.chainLog += (FUZ_rand(&lseed) & 3) - 1;
|
|
cParams.searchLog += (FUZ_rand(&lseed) & 3) - 1;
|
|
cParams.searchLog = MIN(searchLogMax, cParams.searchLog);
|
|
cParams.minMatch += (FUZ_rand(&lseed) & 3) - 1;
|
|
cParams.targetLength = (U32)((cParams.targetLength + 1 ) * (0.5 + ((double)(FUZ_rand(&lseed) & 127) / 128)));
|
|
cParams = ZSTD_adjustCParams(cParams, pledgedSrcSize, dictSize);
|
|
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
DISPLAYLEVEL(5, "t%u: windowLog : %u \n", testNb, cParams.windowLog);
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_windowLog, cParams.windowLog, opaqueAPI) );
|
|
assert(cParams.windowLog >= ZSTD_WINDOWLOG_MIN); /* guaranteed by ZSTD_adjustCParams() */
|
|
windowLogMalus = (cParams.windowLog - ZSTD_WINDOWLOG_MIN) / 5;
|
|
}
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
DISPLAYLEVEL(5, "t%u: hashLog : %u \n", testNb, cParams.hashLog);
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_hashLog, cParams.hashLog, opaqueAPI) );
|
|
}
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
DISPLAYLEVEL(5, "t%u: chainLog : %u \n", testNb, cParams.chainLog);
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_chainLog, cParams.chainLog, opaqueAPI) );
|
|
}
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_searchLog, cParams.searchLog, opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_minMatch, cParams.minMatch, opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_targetLength, cParams.targetLength, opaqueAPI) );
|
|
|
|
/* mess with long distance matching parameters */
|
|
if (bigTests) {
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_enableLongDistanceMatching, FUZ_rand(&lseed) & 63, opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmHashLog, FUZ_randomClampedLength(&lseed, ZSTD_HASHLOG_MIN, 23), opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmMinMatch, FUZ_randomClampedLength(&lseed, ZSTD_LDM_MINMATCH_MIN, ZSTD_LDM_MINMATCH_MAX), opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmBucketSizeLog, FUZ_randomClampedLength(&lseed, ZSTD_LDM_BUCKETSIZELOG_MIN, ZSTD_LDM_BUCKETSIZELOG_MAX), opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmHashRateLog, FUZ_randomClampedLength(&lseed, ZSTD_LDM_HASHRATELOG_MIN, ZSTD_LDM_HASHRATELOG_MAX), opaqueAPI) );
|
|
}
|
|
|
|
/* mess with frame parameters */
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
int const checksumFlag = FUZ_rand(&lseed) & 1;
|
|
DISPLAYLEVEL(5, "t%u: frame checksum : %u \n", testNb, checksumFlag);
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_checksumFlag, checksumFlag, opaqueAPI) );
|
|
}
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_dictIDFlag, FUZ_rand(&lseed) & 1, opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_contentSizeFlag, FUZ_rand(&lseed) & 1, opaqueAPI) );
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
DISPLAYLEVEL(5, "t%u: pledgedSrcSize : %u \n", testNb, (unsigned)pledgedSrcSize);
|
|
CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) );
|
|
}
|
|
|
|
/* multi-threading parameters. Only adjust occasionally for small tests. */
|
|
if (bigTests || (FUZ_rand(&lseed) & 0xF) == 0xF) {
|
|
U32 const nbThreadsCandidate = (FUZ_rand(&lseed) & 4) + 1;
|
|
U32 const nbThreadsAdjusted = (windowLogMalus < nbThreadsCandidate) ? nbThreadsCandidate - windowLogMalus : 1;
|
|
int const nbThreads = MIN(nbThreadsAdjusted, nbThreadsMax);
|
|
DISPLAYLEVEL(5, "t%i: nbThreads : %u \n", testNb, nbThreads);
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_nbWorkers, nbThreads, opaqueAPI) );
|
|
if (nbThreads > 1) {
|
|
U32 const jobLog = FUZ_rand(&lseed) % (testLog+1);
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_overlapLog, FUZ_rand(&lseed) % 10, opaqueAPI) );
|
|
CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_jobSize, (U32)FUZ_rLogLength(&lseed, jobLog), opaqueAPI) );
|
|
}
|
|
}
|
|
/* Enable rsyncable mode 1 in 4 times. */
|
|
setCCtxParameter(zc, cctxParams, ZSTD_c_rsyncable, (FUZ_rand(&lseed) % 4 == 0), opaqueAPI);
|
|
|
|
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_forceMaxWindow, FUZ_rand(&lseed) & 1, opaqueAPI) );
|
|
|
|
/* Apply parameters */
|
|
if (opaqueAPI) {
|
|
DISPLAYLEVEL(5, "t%u: applying CCtxParams \n", testNb);
|
|
CHECK_Z (ZSTD_CCtx_setParametersUsingCCtxParams(zc, cctxParams) );
|
|
}
|
|
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
if (FUZ_rand(&lseed) & 1) {
|
|
CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dict, dictSize) );
|
|
} else {
|
|
CHECK_Z( ZSTD_CCtx_loadDictionary_byReference(zc, dict, dictSize) );
|
|
}
|
|
} else {
|
|
CHECK_Z( ZSTD_CCtx_refPrefix(zc, dict, dictSize) );
|
|
}
|
|
} }
|
|
|
|
CHECK_Z(getCCtxParams(zc, &savedParams));
|
|
|
|
/* multi-segments compression test */
|
|
XXH64_reset(&xxhState, 0);
|
|
{ ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ;
|
|
for (cSize=0, totalTestSize=0 ; (totalTestSize < maxTestSize) ; ) {
|
|
/* compress random chunks into randomly sized dst buffers */
|
|
size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const srcSize = MIN(maxTestSize-totalTestSize, randomSrcSize);
|
|
size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1);
|
|
size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
ZSTD_EndDirective const flush = (FUZ_rand(&lseed) & 15) ? ZSTD_e_continue : ZSTD_e_flush;
|
|
ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 };
|
|
outBuff.size = outBuff.pos + dstBuffSize;
|
|
|
|
CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, flush) );
|
|
DISPLAYLEVEL(6, "t%u: compress consumed %u bytes (total : %u) ; flush: %u (total : %u) \n",
|
|
testNb, (unsigned)inBuff.pos, (unsigned)(totalTestSize + inBuff.pos), (unsigned)flush, (unsigned)outBuff.pos);
|
|
|
|
XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos);
|
|
memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos);
|
|
totalTestSize += inBuff.pos;
|
|
}
|
|
|
|
/* final frame epilogue */
|
|
{ size_t remainingToFlush = 1;
|
|
while (remainingToFlush) {
|
|
ZSTD_inBuffer inBuff = { NULL, 0, 0 };
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1);
|
|
size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize);
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
DISPLAYLEVEL(6, "t%u: End-flush into dst buffer of size %u \n", testNb, (unsigned)adjustedDstSize);
|
|
remainingToFlush = ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end);
|
|
DISPLAYLEVEL(6, "t%u: Total flushed so far : %u bytes \n", testNb, (unsigned)outBuff.pos);
|
|
CHECK( ZSTD_isError(remainingToFlush),
|
|
"ZSTD_compressStream2 w/ ZSTD_e_end error : %s",
|
|
ZSTD_getErrorName(remainingToFlush) );
|
|
} }
|
|
crcOrig = XXH64_digest(&xxhState);
|
|
cSize = outBuff.pos;
|
|
DISPLAYLEVEL(5, "Frame completed : %zu bytes \n", cSize);
|
|
}
|
|
|
|
CHECK(badParameters(zc, savedParams), "CCtx params are wrong");
|
|
|
|
/* multi - fragments decompression test */
|
|
if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) {
|
|
DISPLAYLEVEL(5, "resetting DCtx (dict:%p) \n", dict);
|
|
CHECK_Z( ZSTD_resetDStream(zd) );
|
|
} else {
|
|
if (dictSize)
|
|
DISPLAYLEVEL(5, "using dictionary of size %zu \n", dictSize);
|
|
CHECK_Z( ZSTD_initDStream_usingDict(zd, dict, dictSize) );
|
|
}
|
|
{ size_t decompressionResult = 1;
|
|
ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 };
|
|
ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 };
|
|
for (totalGenSize = 0 ; decompressionResult ; ) {
|
|
size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize);
|
|
inBuff.size = inBuff.pos + readCSrcSize;
|
|
outBuff.size = outBuff.pos + dstBuffSize;
|
|
DISPLAYLEVEL(6, "decompression presented %u new bytes (pos:%u/%u)\n",
|
|
(unsigned)readCSrcSize, (unsigned)inBuff.pos, (unsigned)cSize);
|
|
decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
DISPLAYLEVEL(6, "so far: consumed = %u, produced = %u \n",
|
|
(unsigned)inBuff.pos, (unsigned)outBuff.pos);
|
|
if (ZSTD_isError(decompressionResult)) {
|
|
DISPLAY("ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(decompressionResult));
|
|
findDiff(copyBuffer, dstBuffer, totalTestSize);
|
|
}
|
|
CHECK (ZSTD_isError(decompressionResult), "decompression error : %s", ZSTD_getErrorName(decompressionResult));
|
|
CHECK (inBuff.pos > cSize, "ZSTD_decompressStream consumes too much input : %u > %u ", (unsigned)inBuff.pos, (unsigned)cSize);
|
|
}
|
|
CHECK (inBuff.pos != cSize, "compressed data should be fully read (%u != %u)", (unsigned)inBuff.pos, (unsigned)cSize);
|
|
CHECK (outBuff.pos != totalTestSize, "decompressed data : wrong size (%u != %u)", (unsigned)outBuff.pos, (unsigned)totalTestSize);
|
|
{ U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0);
|
|
if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize);
|
|
CHECK (crcDest!=crcOrig, "decompressed data corrupted");
|
|
} }
|
|
|
|
/*===== noisy/erroneous src decompression test =====*/
|
|
|
|
/* add some noise */
|
|
{ U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2;
|
|
U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) {
|
|
size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const noiseSize = MIN((cSize/3) , randomNoiseSize);
|
|
size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize);
|
|
size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize);
|
|
memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize);
|
|
} }
|
|
|
|
/* try decompression on noisy data */
|
|
CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */
|
|
{ ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 };
|
|
ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 };
|
|
while (outBuff.pos < dstBufferSize) {
|
|
size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
|
|
size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize);
|
|
size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize);
|
|
outBuff.size = outBuff.pos + adjustedDstSize;
|
|
inBuff.size = inBuff.pos + adjustedCSrcSize;
|
|
{ size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff);
|
|
if (ZSTD_isError(decompressError)) break; /* error correctly detected */
|
|
/* Good so far, but no more progress possible */
|
|
if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break;
|
|
} } } }
|
|
DISPLAY("\r%u fuzzer tests completed \n", testNb-1);
|
|
|
|
_cleanup:
|
|
ZSTD_freeCCtx(zc);
|
|
ZSTD_freeDStream(zd);
|
|
ZSTD_freeDStream(zd_noise);
|
|
ZSTD_freeCCtxParams(cctxParams);
|
|
free(cNoiseBuffer[0]);
|
|
free(cNoiseBuffer[1]);
|
|
free(cNoiseBuffer[2]);
|
|
free(cNoiseBuffer[3]);
|
|
free(cNoiseBuffer[4]);
|
|
free(copyBuffer);
|
|
free(cBuffer);
|
|
free(dstBuffer);
|
|
return result;
|
|
|
|
_output_error:
|
|
result = 1;
|
|
goto _cleanup;
|
|
}
|
|
|
|
/*-*******************************************************
|
|
* Command line
|
|
*********************************************************/
|
|
static int FUZ_usage(const char* programName)
|
|
{
|
|
DISPLAY( "Usage :\n");
|
|
DISPLAY( " %s [args]\n", programName);
|
|
DISPLAY( "\n");
|
|
DISPLAY( "Arguments :\n");
|
|
DISPLAY( " -i# : Nb of tests (default:%u) \n", nbTestsDefault);
|
|
DISPLAY( " -s# : Select seed (default:prompt user)\n");
|
|
DISPLAY( " -t# : Select starting test number (default:0)\n");
|
|
DISPLAY( " -P# : Select compressibility in %% (default:%i%%)\n", FUZ_COMPRESSIBILITY_DEFAULT);
|
|
DISPLAY( " -v : verbose\n");
|
|
DISPLAY( " -p : pause at the end\n");
|
|
DISPLAY( " -h : display help and exit\n");
|
|
return 0;
|
|
}
|
|
|
|
typedef enum { simple_api, mt_api, advanced_api } e_api;
|
|
|
|
int main(int argc, const char** argv)
|
|
{
|
|
U32 seed = 0;
|
|
int seedset = 0;
|
|
int nbTests = nbTestsDefault;
|
|
int testNb = 0;
|
|
int proba = FUZ_COMPRESSIBILITY_DEFAULT;
|
|
int result = 0;
|
|
int mainPause = 0;
|
|
int bigTests = (sizeof(size_t) == 8);
|
|
e_api selected_api = simple_api;
|
|
const char* const programName = argv[0];
|
|
int argNb;
|
|
|
|
/* Check command line */
|
|
for(argNb=1; argNb<argc; argNb++) {
|
|
const char* argument = argv[argNb];
|
|
assert(argument != NULL);
|
|
|
|
/* Parsing commands. Aggregated commands are allowed */
|
|
if (argument[0]=='-') {
|
|
|
|
if (!strcmp(argument, "--mt")) { selected_api=mt_api; testNb += !testNb; continue; }
|
|
if (!strcmp(argument, "--newapi")) { selected_api=advanced_api; testNb += !testNb; continue; }
|
|
if (!strcmp(argument, "--no-big-tests")) { bigTests=0; continue; }
|
|
|
|
argument++;
|
|
while (*argument!=0) {
|
|
switch(*argument)
|
|
{
|
|
case 'h':
|
|
return FUZ_usage(programName);
|
|
|
|
case 'v':
|
|
argument++;
|
|
g_displayLevel++;
|
|
break;
|
|
|
|
case 'q':
|
|
argument++;
|
|
g_displayLevel--;
|
|
break;
|
|
|
|
case 'p': /* pause at the end */
|
|
argument++;
|
|
mainPause = 1;
|
|
break;
|
|
|
|
case 'i': /* limit tests by nb of iterations (default) */
|
|
argument++;
|
|
nbTests=0; g_clockTime=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
nbTests *= 10;
|
|
nbTests += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
case 'T': /* limit tests by time */
|
|
argument++;
|
|
nbTests=0; g_clockTime=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
g_clockTime *= 10;
|
|
g_clockTime += *argument - '0';
|
|
argument++;
|
|
}
|
|
if (*argument=='m') { /* -T1m == -T60 */
|
|
g_clockTime *=60, argument++;
|
|
if (*argument=='n') argument++; /* -T1mn == -T60 */
|
|
} else if (*argument=='s') argument++; /* -T10s == -T10 */
|
|
g_clockTime *= SEC_TO_MICRO;
|
|
break;
|
|
|
|
case 's': /* manually select seed */
|
|
argument++;
|
|
seedset=1;
|
|
seed=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
seed *= 10;
|
|
seed += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
case 't': /* select starting test number */
|
|
argument++;
|
|
testNb=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
testNb *= 10;
|
|
testNb += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
case 'P': /* compressibility % */
|
|
argument++;
|
|
proba=0;
|
|
while ((*argument>='0') && (*argument<='9')) {
|
|
proba *= 10;
|
|
proba += *argument - '0';
|
|
argument++;
|
|
}
|
|
if (proba<0) proba=0;
|
|
if (proba>100) proba=100;
|
|
break;
|
|
|
|
default:
|
|
return FUZ_usage(programName);
|
|
}
|
|
} } } /* for(argNb=1; argNb<argc; argNb++) */
|
|
|
|
/* Get Seed */
|
|
DISPLAY("Starting zstream tester (%i-bits, %s)\n", (int)(sizeof(size_t)*8), ZSTD_VERSION_STRING);
|
|
|
|
if (!seedset) {
|
|
time_t const t = time(NULL);
|
|
U32 const h = XXH32(&t, sizeof(t), 1);
|
|
seed = h % 10000;
|
|
}
|
|
|
|
DISPLAY("Seed = %u\n", (unsigned)seed);
|
|
if (proba!=FUZ_COMPRESSIBILITY_DEFAULT) DISPLAY("Compressibility : %i%%\n", proba);
|
|
|
|
if (nbTests<=0) nbTests=1;
|
|
|
|
if (testNb==0) {
|
|
result = basicUnitTests(0, ((double)proba) / 100); /* constant seed for predictability */
|
|
}
|
|
|
|
if (!result) {
|
|
switch(selected_api)
|
|
{
|
|
case simple_api :
|
|
result = fuzzerTests(seed, nbTests, testNb, ((double)proba) / 100, bigTests);
|
|
break;
|
|
case mt_api :
|
|
result = fuzzerTests_MT(seed, nbTests, testNb, ((double)proba) / 100, bigTests);
|
|
break;
|
|
case advanced_api :
|
|
result = fuzzerTests_newAPI(seed, nbTests, testNb, ((double)proba) / 100, bigTests);
|
|
break;
|
|
default :
|
|
assert(0); /* impossible */
|
|
}
|
|
}
|
|
|
|
if (mainPause) {
|
|
int unused;
|
|
DISPLAY("Press Enter \n");
|
|
unused = getchar();
|
|
(void)unused;
|
|
}
|
|
return result;
|
|
}
|