| 1 | /* |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This source code is licensed under both the BSD-style license (found in the |
| 6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found |
| 7 | * in the COPYING file in the root directory of this source tree). |
| 8 | * You may select, at your option, one of the above-listed licenses. |
| 9 | */ |
| 10 | |
| 11 | |
| 12 | /*-************************************ |
| 13 | * Compiler specific |
| 14 | **************************************/ |
| 15 | #ifdef _MSC_VER /* Visual Studio */ |
| 16 | # define _CRT_SECURE_NO_WARNINGS /* fgets */ |
| 17 | # pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ |
| 18 | # pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */ |
| 19 | #endif |
| 20 | |
| 21 | |
| 22 | /*-************************************ |
| 23 | * Includes |
| 24 | **************************************/ |
| 25 | #include <stdlib.h> /* free */ |
| 26 | #include <stdio.h> /* fgets, sscanf */ |
| 27 | #include <string.h> /* strcmp */ |
| 28 | #include <time.h> /* time_t, time(), to randomize seed */ |
| 29 | #include <assert.h> /* assert */ |
| 30 | #include "timefn.h" /* UTIL_time_t, UTIL_getTime */ |
| 31 | #include "mem.h" |
| 32 | #define ZSTD_DISABLE_DEPRECATE_WARNINGS /* No deprecation warnings, we still test some deprecated functions */ |
| 33 | #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel, ZSTD_customMem, ZSTD_getDictID_fromFrame */ |
| 34 | #include "zstd.h" /* ZSTD_compressBound */ |
| 35 | #include "zstd_errors.h" /* ZSTD_error_srcSize_wrong */ |
| 36 | #include "zdict.h" /* ZDICT_trainFromBuffer */ |
| 37 | #include "datagen.h" /* RDG_genBuffer */ |
| 38 | #define XXH_STATIC_LINKING_ONLY /* XXH64_state_t */ |
| 39 | #include "xxhash.h" /* XXH64_* */ |
| 40 | #include "seqgen.h" |
| 41 | #include "util.h" |
| 42 | #include "timefn.h" /* UTIL_time_t, UTIL_clockSpanMicro, UTIL_getTime */ |
| 43 | #include "external_matchfinder.h" /* zstreamSequenceProducer, EMF_testCase */ |
| 44 | |
| 45 | /*-************************************ |
| 46 | * Constants |
| 47 | **************************************/ |
| 48 | #define KB *(1U<<10) |
| 49 | #define MB *(1U<<20) |
| 50 | #define GB *(1U<<30) |
| 51 | |
| 52 | static const int nbTestsDefault = 10000; |
| 53 | static const U32 g_cLevelMax_smallTests = 10; |
| 54 | #define COMPRESSIBLE_NOISE_LENGTH (10 MB) |
| 55 | #define FUZ_COMPRESSIBILITY_DEFAULT 50 |
| 56 | static const U32 prime32 = 2654435761U; |
| 57 | |
| 58 | |
| 59 | /*-************************************ |
| 60 | * Display Macros |
| 61 | **************************************/ |
| 62 | #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) |
| 63 | #define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { \ |
| 64 | DISPLAY(__VA_ARGS__); \ |
| 65 | if (g_displayLevel>=4) fflush(stderr); } |
| 66 | static U32 g_displayLevel = 2; |
| 67 | |
| 68 | static const U64 g_refreshRate = SEC_TO_MICRO / 6; |
| 69 | static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER; |
| 70 | |
| 71 | #define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \ |
| 72 | if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (g_displayLevel>=4)) \ |
| 73 | { g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \ |
| 74 | if (g_displayLevel>=4) fflush(stderr); } } |
| 75 | |
| 76 | static U64 g_clockTime = 0; |
| 77 | |
| 78 | |
| 79 | /*-******************************************************* |
| 80 | * Check macros |
| 81 | *********************************************************/ |
| 82 | #undef MIN |
| 83 | #undef MAX |
| 84 | #define MIN(a,b) ((a)<(b)?(a):(b)) |
| 85 | #define MAX(a,b) ((a)>(b)?(a):(b)) |
| 86 | /*! FUZ_rand() : |
| 87 | @return : a 27 bits random value, from a 32-bits `seed`. |
| 88 | `seed` is also modified */ |
| 89 | #define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r))) |
| 90 | static U32 FUZ_rand(U32* seedPtr) |
| 91 | { |
| 92 | static const U32 prime2 = 2246822519U; |
| 93 | U32 rand32 = *seedPtr; |
| 94 | rand32 *= prime32; |
| 95 | rand32 += prime2; |
| 96 | rand32 = FUZ_rotl32(rand32, 13); |
| 97 | *seedPtr = rand32; |
| 98 | return rand32 >> 5; |
| 99 | } |
| 100 | |
| 101 | #define CHECK(cond, ...) { \ |
| 102 | if (cond) { \ |
| 103 | DISPLAY("Error => "); \ |
| 104 | DISPLAY(__VA_ARGS__); \ |
| 105 | DISPLAY(" (seed %u, test nb %u, line %u) \n", \ |
| 106 | (unsigned)seed, testNb, __LINE__); \ |
| 107 | goto _output_error; \ |
| 108 | } } |
| 109 | |
| 110 | #define CHECK_Z(f) { \ |
| 111 | size_t const err = f; \ |
| 112 | CHECK(ZSTD_isError(err), "%s : %s ", \ |
| 113 | #f, ZSTD_getErrorName(err)); \ |
| 114 | } |
| 115 | |
| 116 | #define CHECK_RET(ret, cond, ...) { \ |
| 117 | if (cond) { \ |
| 118 | DISPLAY("Error %llu => ", (unsigned long long)ret); \ |
| 119 | DISPLAY(__VA_ARGS__); \ |
| 120 | DISPLAY(" (line %u)\n", __LINE__); \ |
| 121 | return ret; \ |
| 122 | } } |
| 123 | |
| 124 | #define CHECK_RET_Z(f) { \ |
| 125 | size_t const err = f; \ |
| 126 | CHECK_RET(err, ZSTD_isError(err), "%s : %s ", \ |
| 127 | #f, ZSTD_getErrorName(err)); \ |
| 128 | } |
| 129 | |
| 130 | |
| 131 | /*====================================================== |
| 132 | * Basic Unit tests |
| 133 | *======================================================*/ |
| 134 | |
| 135 | typedef struct { |
| 136 | void* start; |
| 137 | size_t size; |
| 138 | size_t filled; |
| 139 | } buffer_t; |
| 140 | |
| 141 | static const buffer_t kBuffNull = { NULL, 0 , 0 }; |
| 142 | |
| 143 | static void FUZ_freeDictionary(buffer_t dict) |
| 144 | { |
| 145 | free(dict.start); |
| 146 | } |
| 147 | |
| 148 | static buffer_t FUZ_createDictionary(const void* src, size_t srcSize, size_t blockSize, size_t requestedDictSize) |
| 149 | { |
| 150 | buffer_t dict = kBuffNull; |
| 151 | size_t const nbBlocks = (srcSize + (blockSize-1)) / blockSize; |
| 152 | size_t* const blockSizes = (size_t*)malloc(nbBlocks * sizeof(size_t)); |
| 153 | if (!blockSizes) return kBuffNull; |
| 154 | dict.start = malloc(requestedDictSize); |
| 155 | if (!dict.start) { free(blockSizes); return kBuffNull; } |
| 156 | { size_t nb; |
| 157 | for (nb=0; nb<nbBlocks-1; nb++) blockSizes[nb] = blockSize; |
| 158 | blockSizes[nbBlocks-1] = srcSize - (blockSize * (nbBlocks-1)); |
| 159 | } |
| 160 | { size_t const dictSize = ZDICT_trainFromBuffer(dict.start, requestedDictSize, src, blockSizes, (unsigned)nbBlocks); |
| 161 | free(blockSizes); |
| 162 | if (ZDICT_isError(dictSize)) { FUZ_freeDictionary(dict); return kBuffNull; } |
| 163 | dict.size = requestedDictSize; |
| 164 | dict.filled = dictSize; |
| 165 | return dict; |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /* Round trips data and updates xxh with the decompressed data produced */ |
| 170 | static size_t SEQ_roundTrip(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx, |
| 171 | XXH64_state_t* xxh, void* data, size_t size, |
| 172 | ZSTD_EndDirective endOp) |
| 173 | { |
| 174 | static BYTE compressed[1024]; |
| 175 | static BYTE uncompressed[1024]; |
| 176 | |
| 177 | ZSTD_inBuffer cin = {data, size, 0}; |
| 178 | size_t cret; |
| 179 | |
| 180 | do { |
| 181 | ZSTD_outBuffer cout = { compressed, sizeof(compressed), 0 }; |
| 182 | ZSTD_inBuffer din = { compressed, 0, 0 }; |
| 183 | ZSTD_outBuffer dout = { uncompressed, 0, 0 }; |
| 184 | |
| 185 | cret = ZSTD_compressStream2(cctx, &cout, &cin, endOp); |
| 186 | if (ZSTD_isError(cret)) |
| 187 | return cret; |
| 188 | |
| 189 | din.size = cout.pos; |
| 190 | while (din.pos < din.size || (endOp == ZSTD_e_end && cret == 0)) { |
| 191 | size_t dret; |
| 192 | |
| 193 | dout.pos = 0; |
| 194 | dout.size = sizeof(uncompressed); |
| 195 | dret = ZSTD_decompressStream(dctx, &dout, &din); |
| 196 | if (ZSTD_isError(dret)) |
| 197 | return dret; |
| 198 | XXH64_update(xxh, dout.dst, dout.pos); |
| 199 | if (dret == 0) |
| 200 | break; |
| 201 | } |
| 202 | } while (cin.pos < cin.size || (endOp != ZSTD_e_continue && cret != 0)); |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | /* Generates some data and round trips it */ |
| 207 | static size_t SEQ_generateRoundTrip(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx, |
| 208 | XXH64_state_t* xxh, SEQ_stream* seq, |
| 209 | SEQ_gen_type type, unsigned value) |
| 210 | { |
| 211 | static BYTE data[1024]; |
| 212 | size_t gen; |
| 213 | |
| 214 | do { |
| 215 | SEQ_outBuffer sout = {data, sizeof(data), 0}; |
| 216 | size_t ret; |
| 217 | gen = SEQ_gen(seq, type, value, &sout); |
| 218 | |
| 219 | ret = SEQ_roundTrip(cctx, dctx, xxh, sout.dst, sout.pos, ZSTD_e_continue); |
| 220 | if (ZSTD_isError(ret)) |
| 221 | return ret; |
| 222 | } while (gen != 0); |
| 223 | |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | static size_t getCCtxParams(ZSTD_CCtx* zc, ZSTD_parameters* savedParams) |
| 228 | { |
| 229 | int value; |
| 230 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_windowLog, (int*)&savedParams->cParams.windowLog)); |
| 231 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_hashLog, (int*)&savedParams->cParams.hashLog)); |
| 232 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_chainLog, (int*)&savedParams->cParams.chainLog)); |
| 233 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_searchLog, (int*)&savedParams->cParams.searchLog)); |
| 234 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_minMatch, (int*)&savedParams->cParams.minMatch)); |
| 235 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_targetLength, (int*)&savedParams->cParams.targetLength)); |
| 236 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_strategy, &value)); |
| 237 | savedParams->cParams.strategy = value; |
| 238 | |
| 239 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_checksumFlag, &savedParams->fParams.checksumFlag)); |
| 240 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_contentSizeFlag, &savedParams->fParams.contentSizeFlag)); |
| 241 | CHECK_RET_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_dictIDFlag, &value)); |
| 242 | savedParams->fParams.noDictIDFlag = !value; |
| 243 | return 0; |
| 244 | } |
| 245 | |
| 246 | static U32 badParameters(ZSTD_CCtx* zc, ZSTD_parameters const savedParams) |
| 247 | { |
| 248 | ZSTD_parameters params; |
| 249 | if (ZSTD_isError(getCCtxParams(zc, ¶ms))) return 10; |
| 250 | CHECK_RET(1, params.cParams.windowLog != savedParams.cParams.windowLog, "windowLog"); |
| 251 | CHECK_RET(2, params.cParams.hashLog != savedParams.cParams.hashLog, "hashLog"); |
| 252 | CHECK_RET(3, params.cParams.chainLog != savedParams.cParams.chainLog, "chainLog"); |
| 253 | CHECK_RET(4, params.cParams.searchLog != savedParams.cParams.searchLog, "searchLog"); |
| 254 | CHECK_RET(5, params.cParams.minMatch != savedParams.cParams.minMatch, "minMatch"); |
| 255 | CHECK_RET(6, params.cParams.targetLength != savedParams.cParams.targetLength, "targetLength"); |
| 256 | |
| 257 | CHECK_RET(7, params.fParams.checksumFlag != savedParams.fParams.checksumFlag, "checksumFlag"); |
| 258 | CHECK_RET(8, params.fParams.contentSizeFlag != savedParams.fParams.contentSizeFlag, "contentSizeFlag"); |
| 259 | CHECK_RET(9, params.fParams.noDictIDFlag != savedParams.fParams.noDictIDFlag, "noDictIDFlag"); |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | static int basicUnitTests(U32 seed, double compressibility, int bigTests) |
| 264 | { |
| 265 | size_t const CNBufferSize = COMPRESSIBLE_NOISE_LENGTH; |
| 266 | void* CNBuffer = malloc(CNBufferSize); |
| 267 | size_t const skippableFrameSize = 200 KB; |
| 268 | size_t const compressedBufferSize = (8 + skippableFrameSize) + ZSTD_compressBound(COMPRESSIBLE_NOISE_LENGTH); |
| 269 | void* compressedBuffer = malloc(compressedBufferSize); |
| 270 | size_t const decodedBufferSize = CNBufferSize; |
| 271 | void* decodedBuffer = malloc(decodedBufferSize); |
| 272 | size_t cSize; |
| 273 | int testResult = 0; |
| 274 | int testNb = 1; |
| 275 | U32 coreSeed = 0; /* this name to conform with CHECK_Z macro display */ |
| 276 | ZSTD_CStream* zc = ZSTD_createCStream(); |
| 277 | ZSTD_DStream* zd = ZSTD_createDStream(); |
| 278 | ZSTD_CCtx* mtctx = ZSTD_createCCtx(); |
| 279 | |
| 280 | ZSTD_inBuffer inBuff, inBuff2; |
| 281 | ZSTD_outBuffer outBuff; |
| 282 | buffer_t dictionary = kBuffNull; |
| 283 | size_t const dictSize = 128 KB; |
| 284 | unsigned dictID = 0; |
| 285 | |
| 286 | /* Create compressible test buffer */ |
| 287 | if (!CNBuffer || !compressedBuffer || !decodedBuffer || !zc || !zd || !mtctx) { |
| 288 | DISPLAY("Not enough memory, aborting \n"); |
| 289 | goto _output_error; |
| 290 | } |
| 291 | RDG_genBuffer(CNBuffer, CNBufferSize, compressibility, 0., seed); |
| 292 | |
| 293 | CHECK_Z(ZSTD_CCtx_setParameter(mtctx, ZSTD_c_nbWorkers, 2)); |
| 294 | |
| 295 | /* Create dictionary */ |
| 296 | DISPLAYLEVEL(3, "creating dictionary for unit tests \n"); |
| 297 | dictionary = FUZ_createDictionary(CNBuffer, CNBufferSize / 3, 16 KB, 48 KB); |
| 298 | if (!dictionary.start) { |
| 299 | DISPLAY("Error creating dictionary, aborting \n"); |
| 300 | goto _output_error; |
| 301 | } |
| 302 | dictID = ZDICT_getDictID(dictionary.start, dictionary.filled); |
| 303 | |
| 304 | /* Basic compression test */ |
| 305 | DISPLAYLEVEL(3, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); |
| 306 | CHECK_Z( ZSTD_initCStream(zc, 1 /* cLevel */) ); |
| 307 | outBuff.dst = (char*)(compressedBuffer); |
| 308 | outBuff.size = compressedBufferSize; |
| 309 | outBuff.pos = 0; |
| 310 | inBuff.src = CNBuffer; |
| 311 | inBuff.size = CNBufferSize; |
| 312 | inBuff.pos = 0; |
| 313 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 314 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 315 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 316 | if (r != 0) goto _output_error; } /* error, or some data not flushed */ |
| 317 | DISPLAYLEVEL(3, "OK (%u bytes)\n", (unsigned)outBuff.pos); |
| 318 | |
| 319 | /* generate skippable frame */ |
| 320 | MEM_writeLE32(compressedBuffer, ZSTD_MAGIC_SKIPPABLE_START); |
| 321 | MEM_writeLE32(((char*)compressedBuffer)+4, (U32)skippableFrameSize); |
| 322 | cSize = skippableFrameSize + 8; |
| 323 | |
| 324 | /* Basic compression test using dict */ |
| 325 | DISPLAYLEVEL(3, "test%3i : skipframe + compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); |
| 326 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 327 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 1) ); |
| 328 | CHECK_Z( ZSTD_CCtx_loadDictionary(zc, CNBuffer, dictSize) ); |
| 329 | outBuff.dst = (char*)(compressedBuffer)+cSize; |
| 330 | assert(compressedBufferSize > cSize); |
| 331 | outBuff.size = compressedBufferSize - cSize; |
| 332 | outBuff.pos = 0; |
| 333 | inBuff.src = CNBuffer; |
| 334 | inBuff.size = CNBufferSize; |
| 335 | inBuff.pos = 0; |
| 336 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 337 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 338 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 339 | if (r != 0) goto _output_error; } /* error, or some data not flushed */ |
| 340 | cSize += outBuff.pos; |
| 341 | DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", |
| 342 | (unsigned)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100); |
| 343 | |
| 344 | /* context size functions */ |
| 345 | DISPLAYLEVEL(3, "test%3i : estimate CStream size : ", testNb++); |
| 346 | { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBufferSize, dictSize); |
| 347 | size_t const cstreamSize = ZSTD_estimateCStreamSize_usingCParams(cParams); |
| 348 | size_t const cdictSize = ZSTD_estimateCDictSize_advanced(dictSize, cParams, ZSTD_dlm_byCopy); /* uses ZSTD_initCStream_usingDict() */ |
| 349 | if (ZSTD_isError(cstreamSize)) goto _output_error; |
| 350 | if (ZSTD_isError(cdictSize)) goto _output_error; |
| 351 | DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)(cstreamSize + cdictSize)); |
| 352 | } |
| 353 | |
| 354 | /* context size functions */ |
| 355 | DISPLAYLEVEL(3, "test%3i : estimate CStream size using CCtxParams : ", testNb++); |
| 356 | { ZSTD_CCtx_params* const params = ZSTD_createCCtxParams(); |
| 357 | size_t cstreamSize, cctxSize; |
| 358 | CHECK_Z( ZSTD_CCtxParams_setParameter(params, ZSTD_c_compressionLevel, 19) ); |
| 359 | cstreamSize = ZSTD_estimateCStreamSize_usingCCtxParams(params); |
| 360 | CHECK_Z(cstreamSize); |
| 361 | cctxSize = ZSTD_estimateCCtxSize_usingCCtxParams(params); |
| 362 | CHECK_Z(cctxSize); |
| 363 | if (cstreamSize <= cctxSize + 2 * ZSTD_BLOCKSIZE_MAX) goto _output_error; |
| 364 | ZSTD_freeCCtxParams(params); |
| 365 | DISPLAYLEVEL(3, "OK \n"); |
| 366 | } |
| 367 | |
| 368 | DISPLAYLEVEL(3, "test%3i : check actual CStream size : ", testNb++); |
| 369 | { size_t const s = ZSTD_sizeof_CStream(zc); |
| 370 | if (ZSTD_isError(s)) goto _output_error; |
| 371 | DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); |
| 372 | } |
| 373 | |
| 374 | /* Attempt bad compression parameters */ |
| 375 | DISPLAYLEVEL(3, "test%3i : use bad compression parameters with ZSTD_initCStream_advanced : ", testNb++); |
| 376 | { size_t r; |
| 377 | ZSTD_parameters params = ZSTD_getParams(1, 0, 0); |
| 378 | params.cParams.minMatch = 2; |
| 379 | r = ZSTD_initCStream_advanced(zc, NULL, 0, params, 0); |
| 380 | if (!ZSTD_isError(r)) goto _output_error; |
| 381 | DISPLAYLEVEL(3, "init error : %s \n", ZSTD_getErrorName(r)); |
| 382 | } |
| 383 | |
| 384 | /* skippable frame test */ |
| 385 | DISPLAYLEVEL(3, "test%3i : decompress skippable frame : ", testNb++); |
| 386 | CHECK_Z( ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize) ); |
| 387 | inBuff.src = compressedBuffer; |
| 388 | inBuff.size = cSize; |
| 389 | inBuff.pos = 0; |
| 390 | outBuff.dst = decodedBuffer; |
| 391 | outBuff.size = CNBufferSize; |
| 392 | outBuff.pos = 0; |
| 393 | { size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 394 | DISPLAYLEVEL(5, " ( ZSTD_decompressStream => %u ) ", (unsigned)r); |
| 395 | if (r != 0) goto _output_error; |
| 396 | } |
| 397 | if (outBuff.pos != 0) goto _output_error; /* skippable frame output len is 0 */ |
| 398 | DISPLAYLEVEL(3, "OK \n"); |
| 399 | |
| 400 | /* Basic decompression test */ |
| 401 | inBuff2 = inBuff; |
| 402 | DISPLAYLEVEL(3, "test%3i : decompress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); |
| 403 | ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); |
| 404 | CHECK_Z( ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, ZSTD_WINDOWLOG_LIMIT_DEFAULT+1) ); /* large limit */ |
| 405 | { size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 406 | if (remaining != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ |
| 407 | if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ |
| 408 | if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */ |
| 409 | DISPLAYLEVEL(3, "OK \n"); |
| 410 | |
| 411 | /* Re-use without init */ |
| 412 | DISPLAYLEVEL(3, "test%3i : decompress again without init (re-use previous settings): ", testNb++); |
| 413 | outBuff.pos = 0; |
| 414 | { size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inBuff2); |
| 415 | if (remaining != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ |
| 416 | if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ |
| 417 | if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */ |
| 418 | DISPLAYLEVEL(3, "OK \n"); |
| 419 | |
| 420 | /* check regenerated data is byte exact */ |
| 421 | DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); |
| 422 | { size_t i; |
| 423 | for (i=0; i<CNBufferSize; i++) { |
| 424 | if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error; |
| 425 | } } |
| 426 | DISPLAYLEVEL(3, "OK \n"); |
| 427 | |
| 428 | /* check decompression fails early if first bytes are wrong */ |
| 429 | DISPLAYLEVEL(3, "test%3i : early decompression error if first bytes are incorrect : ", testNb++); |
| 430 | { const char buf[3] = { 0 }; /* too short, not enough to start decoding header */ |
| 431 | ZSTD_inBuffer inb = { buf, sizeof(buf), 0 }; |
| 432 | size_t const remaining = ZSTD_decompressStream(zd, &outBuff, &inb); |
| 433 | if (!ZSTD_isError(remaining)) goto _output_error; /* should have errored out immediately (note: this does not test the exact error code) */ |
| 434 | } |
| 435 | DISPLAYLEVEL(3, "OK \n"); |
| 436 | |
| 437 | /* context size functions */ |
| 438 | DISPLAYLEVEL(3, "test%3i : estimate DStream size : ", testNb++); |
| 439 | { ZSTD_frameHeader fhi; |
| 440 | const void* cStart = (char*)compressedBuffer + (skippableFrameSize + 8); |
| 441 | size_t const gfhError = ZSTD_getFrameHeader(&fhi, cStart, cSize); |
| 442 | if (gfhError!=0) goto _output_error; |
| 443 | DISPLAYLEVEL(5, " (windowSize : %u) ", (unsigned)fhi.windowSize); |
| 444 | { size_t const s = ZSTD_estimateDStreamSize(fhi.windowSize) |
| 445 | /* uses ZSTD_initDStream_usingDict() */ |
| 446 | + ZSTD_estimateDDictSize(dictSize, ZSTD_dlm_byCopy); |
| 447 | if (ZSTD_isError(s)) goto _output_error; |
| 448 | DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); |
| 449 | } } |
| 450 | |
| 451 | DISPLAYLEVEL(3, "test%3i : check actual DStream size : ", testNb++); |
| 452 | { size_t const s = ZSTD_sizeof_DStream(zd); |
| 453 | if (ZSTD_isError(s)) goto _output_error; |
| 454 | DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); |
| 455 | } |
| 456 | |
| 457 | /* Decompression by small increment */ |
| 458 | DISPLAYLEVEL(3, "test%3i : decompress byte-by-byte : ", testNb++); |
| 459 | { /* skippable frame */ |
| 460 | size_t r = 1; |
| 461 | ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); |
| 462 | inBuff.src = compressedBuffer; |
| 463 | outBuff.dst = decodedBuffer; |
| 464 | inBuff.pos = 0; |
| 465 | outBuff.pos = 0; |
| 466 | while (r) { /* skippable frame */ |
| 467 | size_t const inSize = (FUZ_rand(&coreSeed) & 15) + 1; |
| 468 | size_t const outSize = (FUZ_rand(&coreSeed) & 15) + 1; |
| 469 | inBuff.size = inBuff.pos + inSize; |
| 470 | outBuff.size = outBuff.pos + outSize; |
| 471 | r = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 472 | if (ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream on skippable frame error : %s \n", ZSTD_getErrorName(r)); |
| 473 | if (ZSTD_isError(r)) goto _output_error; |
| 474 | } |
| 475 | /* normal frame */ |
| 476 | ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); |
| 477 | r=1; |
| 478 | while (r) { |
| 479 | size_t const inSize = FUZ_rand(&coreSeed) & 15; |
| 480 | size_t const outSize = (FUZ_rand(&coreSeed) & 15) + (!inSize); /* avoid having both sizes at 0 => would trigger a no_forward_progress error */ |
| 481 | inBuff.size = inBuff.pos + inSize; |
| 482 | outBuff.size = outBuff.pos + outSize; |
| 483 | r = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 484 | if (ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(r)); |
| 485 | if (ZSTD_isError(r)) goto _output_error; |
| 486 | } |
| 487 | } |
| 488 | if (outBuff.pos != CNBufferSize) DISPLAYLEVEL(4, "outBuff.pos != CNBufferSize : should have regenerated same amount ! \n"); |
| 489 | if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ |
| 490 | if (inBuff.pos != cSize) DISPLAYLEVEL(4, "inBuff.pos != cSize : should have real all input ! \n"); |
| 491 | if (inBuff.pos != cSize) goto _output_error; /* should have read the entire frame */ |
| 492 | DISPLAYLEVEL(3, "OK \n"); |
| 493 | |
| 494 | /* check regenerated data is byte exact */ |
| 495 | DISPLAYLEVEL(3, "test%3i : check decompressed result : ", testNb++); |
| 496 | { size_t i; |
| 497 | for (i=0; i<CNBufferSize; i++) { |
| 498 | if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error; |
| 499 | } } |
| 500 | DISPLAYLEVEL(3, "OK \n"); |
| 501 | |
| 502 | /* Decompression forward progress */ |
| 503 | DISPLAYLEVEL(3, "test%3i : generate error when ZSTD_decompressStream() doesn't progress : ", testNb++); |
| 504 | { /* skippable frame */ |
| 505 | size_t r = 0; |
| 506 | int decNb = 0; |
| 507 | int const maxDec = 100; |
| 508 | inBuff.src = compressedBuffer; |
| 509 | inBuff.size = cSize; |
| 510 | inBuff.pos = 0; |
| 511 | |
| 512 | outBuff.dst = decodedBuffer; |
| 513 | outBuff.pos = 0; |
| 514 | outBuff.size = CNBufferSize-1; /* 1 byte missing */ |
| 515 | |
| 516 | for (decNb=0; decNb<maxDec; decNb++) { |
| 517 | if (r==0) ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); |
| 518 | r = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 519 | if (ZSTD_isError(r)) break; |
| 520 | } |
| 521 | if (!ZSTD_isError(r)) DISPLAYLEVEL(4, "ZSTD_decompressStream should have triggered a no_forward_progress error \n"); |
| 522 | if (!ZSTD_isError(r)) goto _output_error; /* should have triggered no_forward_progress error */ |
| 523 | } |
| 524 | DISPLAYLEVEL(3, "OK \n"); |
| 525 | |
| 526 | DISPLAYLEVEL(3, "test%3i : NULL output and NULL input : ", testNb++); |
| 527 | inBuff.src = NULL; |
| 528 | inBuff.size = 0; |
| 529 | inBuff.pos = 0; |
| 530 | outBuff.dst = NULL; |
| 531 | outBuff.size = 0; |
| 532 | outBuff.pos = 0; |
| 533 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 534 | CHECK(inBuff.pos != inBuff.size, "Entire input should be consumed"); |
| 535 | CHECK_Z( ZSTD_endStream(zc, &outBuff) ); |
| 536 | outBuff.dst = (char*)(compressedBuffer); |
| 537 | outBuff.size = compressedBufferSize; |
| 538 | outBuff.pos = 0; |
| 539 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 540 | CHECK(r != 0, "Error or some data not flushed (ret=%zu)", r); |
| 541 | } |
| 542 | inBuff.src = outBuff.dst; |
| 543 | inBuff.size = outBuff.pos; |
| 544 | inBuff.pos = 0; |
| 545 | outBuff.dst = NULL; |
| 546 | outBuff.size = 0; |
| 547 | outBuff.pos = 0; |
| 548 | CHECK_Z( ZSTD_initDStream(zd) ); |
| 549 | { size_t const ret = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 550 | if (ret != 0) goto _output_error; |
| 551 | } |
| 552 | DISPLAYLEVEL(3, "OK\n"); |
| 553 | |
| 554 | DISPLAYLEVEL(3, "test%3i : NULL output buffer with non-NULL input : ", testNb++); |
| 555 | { |
| 556 | const char* test = "aa"; |
| 557 | inBuff.src = test; |
| 558 | inBuff.size = 2; |
| 559 | inBuff.pos = 0; |
| 560 | outBuff.dst = NULL; |
| 561 | outBuff.size = 0; |
| 562 | outBuff.pos = 0; |
| 563 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 564 | CHECK(inBuff.pos != inBuff.size, "Entire input should be consumed"); |
| 565 | CHECK_Z( ZSTD_endStream(zc, &outBuff) ); |
| 566 | outBuff.dst = (char*)(compressedBuffer); |
| 567 | outBuff.size = compressedBufferSize; |
| 568 | outBuff.pos = 0; |
| 569 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 570 | CHECK(r != 0, "Error or some data not flushed (ret=%zu)", r); |
| 571 | } |
| 572 | inBuff.src = outBuff.dst; |
| 573 | inBuff.size = outBuff.pos; |
| 574 | inBuff.pos = 0; |
| 575 | outBuff.dst = NULL; |
| 576 | outBuff.size = 0; |
| 577 | outBuff.pos = 0; |
| 578 | CHECK_Z( ZSTD_initDStream(zd) ); |
| 579 | CHECK_Z(ZSTD_decompressStream(zd, &outBuff, &inBuff)); |
| 580 | } |
| 581 | |
| 582 | DISPLAYLEVEL(3, "OK\n"); |
| 583 | /* _srcSize compression test */ |
| 584 | DISPLAYLEVEL(3, "test%3i : compress_srcSize %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); |
| 585 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 586 | CHECK_Z( ZSTD_CCtx_refCDict(zc, NULL) ); |
| 587 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 1) ); |
| 588 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, CNBufferSize) ); |
| 589 | outBuff.dst = (char*)(compressedBuffer); |
| 590 | outBuff.size = compressedBufferSize; |
| 591 | outBuff.pos = 0; |
| 592 | inBuff.src = CNBuffer; |
| 593 | inBuff.size = CNBufferSize; |
| 594 | inBuff.pos = 0; |
| 595 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 596 | CHECK(inBuff.pos != inBuff.size, "Entire input should be consumed"); |
| 597 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 598 | CHECK(r != 0, "Error or some data not flushed (ret=%zu)", r); |
| 599 | } |
| 600 | { unsigned long long origSize = ZSTD_findDecompressedSize(outBuff.dst, outBuff.pos); |
| 601 | CHECK(origSize == ZSTD_CONTENTSIZE_UNKNOWN, "Unknown!"); |
| 602 | CHECK((size_t)origSize != CNBufferSize, "Exact original size must be present (got %llu)", origSize); |
| 603 | } |
| 604 | DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100); |
| 605 | |
| 606 | /* wrong _srcSize compression test */ |
| 607 | DISPLAYLEVEL(3, "test%3i : too large srcSize : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1); |
| 608 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 609 | CHECK_Z( ZSTD_CCtx_refCDict(zc, NULL) ); |
| 610 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 1) ); |
| 611 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, CNBufferSize+1) ); |
| 612 | outBuff.dst = (char*)(compressedBuffer); |
| 613 | outBuff.size = compressedBufferSize; |
| 614 | outBuff.pos = 0; |
| 615 | inBuff.src = CNBuffer; |
| 616 | inBuff.size = CNBufferSize; |
| 617 | inBuff.pos = 0; |
| 618 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 619 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 620 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 621 | if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */ |
| 622 | DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); } |
| 623 | |
| 624 | /* wrong _srcSize compression test */ |
| 625 | DISPLAYLEVEL(3, "test%3i : too small srcSize : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1); |
| 626 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 627 | CHECK_Z( ZSTD_CCtx_refCDict(zc, NULL) ); |
| 628 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 1) ); |
| 629 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, CNBufferSize-1) ); |
| 630 | outBuff.dst = (char*)(compressedBuffer); |
| 631 | outBuff.size = compressedBufferSize; |
| 632 | outBuff.pos = 0; |
| 633 | inBuff.src = CNBuffer; |
| 634 | inBuff.size = CNBufferSize; |
| 635 | inBuff.pos = 0; |
| 636 | { size_t const r = ZSTD_compressStream(zc, &outBuff, &inBuff); |
| 637 | if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */ |
| 638 | DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); |
| 639 | } |
| 640 | |
| 641 | DISPLAYLEVEL(3, "test%3i : wrong srcSize !contentSizeFlag : %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH-1); |
| 642 | { CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 643 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_contentSizeFlag, 0) ); |
| 644 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, CNBufferSize - MIN(CNBufferSize, 200 KB)) ); |
| 645 | outBuff.dst = (char*)compressedBuffer; |
| 646 | outBuff.size = compressedBufferSize; |
| 647 | outBuff.pos = 0; |
| 648 | inBuff.src = CNBuffer; |
| 649 | inBuff.size = CNBufferSize; |
| 650 | inBuff.pos = 0; |
| 651 | { size_t const r = ZSTD_compressStream(zc, &outBuff, &inBuff); |
| 652 | if (ZSTD_getErrorCode(r) != ZSTD_error_srcSize_wrong) goto _output_error; /* must fail : wrong srcSize */ |
| 653 | DISPLAYLEVEL(3, "OK (error detected : %s) \n", ZSTD_getErrorName(r)); |
| 654 | } } |
| 655 | |
| 656 | /* Compression state re-use scenario */ |
| 657 | DISPLAYLEVEL(3, "test%3i : context re-use : ", testNb++); |
| 658 | ZSTD_freeCStream(zc); |
| 659 | zc = ZSTD_createCStream(); |
| 660 | if (zc==NULL) goto _output_error; /* memory allocation issue */ |
| 661 | /* use 1 */ |
| 662 | { size_t const inSize = 513; |
| 663 | DISPLAYLEVEL(5, "use1 "); |
| 664 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 665 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 19) ); |
| 666 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, inSize) ); |
| 667 | inBuff.src = CNBuffer; |
| 668 | inBuff.size = inSize; |
| 669 | inBuff.pos = 0; |
| 670 | outBuff.dst = (char*)(compressedBuffer)+cSize; |
| 671 | outBuff.size = ZSTD_compressBound(inSize); |
| 672 | outBuff.pos = 0; |
| 673 | DISPLAYLEVEL(5, "compress1 "); |
| 674 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 675 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 676 | DISPLAYLEVEL(5, "end1 "); |
| 677 | if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; /* error, or some data not flushed */ |
| 678 | } |
| 679 | /* use 2 */ |
| 680 | { size_t const inSize = 1025; /* will not continue, because tables auto-adjust and are therefore different size */ |
| 681 | DISPLAYLEVEL(5, "use2 "); |
| 682 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 683 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 19) ); |
| 684 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, inSize) ); |
| 685 | inBuff.src = CNBuffer; |
| 686 | inBuff.size = inSize; |
| 687 | inBuff.pos = 0; |
| 688 | outBuff.dst = (char*)(compressedBuffer)+cSize; |
| 689 | outBuff.size = ZSTD_compressBound(inSize); |
| 690 | outBuff.pos = 0; |
| 691 | DISPLAYLEVEL(5, "compress2 "); |
| 692 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 693 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 694 | DISPLAYLEVEL(5, "end2 "); |
| 695 | if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; /* error, or some data not flushed */ |
| 696 | } |
| 697 | DISPLAYLEVEL(3, "OK \n"); |
| 698 | |
| 699 | /* Decompression single pass with empty frame */ |
| 700 | cSize = ZSTD_compress(compressedBuffer, compressedBufferSize, NULL, 0, 1); |
| 701 | CHECK_Z(cSize); |
| 702 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() single pass on empty frame : ", testNb++); |
| 703 | { ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 704 | size_t const dctxSize = ZSTD_sizeof_DCtx(dctx); |
| 705 | CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| 706 | |
| 707 | outBuff.dst = decodedBuffer; |
| 708 | outBuff.pos = 0; |
| 709 | outBuff.size = CNBufferSize; |
| 710 | |
| 711 | inBuff.src = compressedBuffer; |
| 712 | inBuff.size = cSize; |
| 713 | inBuff.pos = 0; |
| 714 | { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| 715 | CHECK_Z(r); |
| 716 | CHECK(r != 0, "Entire frame must be decompressed"); |
| 717 | CHECK(outBuff.pos != 0, "Wrong size!"); |
| 718 | CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| 719 | } |
| 720 | CHECK(dctxSize != ZSTD_sizeof_DCtx(dctx), "No buffers allocated"); |
| 721 | ZSTD_freeDCtx(dctx); |
| 722 | } |
| 723 | DISPLAYLEVEL(3, "OK \n"); |
| 724 | |
| 725 | /* Decompression with ZSTD_d_stableOutBuffer */ |
| 726 | cSize = ZSTD_compress(compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize, 1); |
| 727 | CHECK_Z(cSize); |
| 728 | { ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 729 | size_t const dctxSize0 = ZSTD_sizeof_DCtx(dctx); |
| 730 | size_t dctxSize1; |
| 731 | CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| 732 | |
| 733 | outBuff.dst = decodedBuffer; |
| 734 | outBuff.pos = 0; |
| 735 | outBuff.size = CNBufferSize; |
| 736 | |
| 737 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() single pass : ", testNb++); |
| 738 | inBuff.src = compressedBuffer; |
| 739 | inBuff.size = cSize; |
| 740 | inBuff.pos = 0; |
| 741 | { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| 742 | CHECK_Z(r); |
| 743 | CHECK(r != 0, "Entire frame must be decompressed"); |
| 744 | CHECK(outBuff.pos != CNBufferSize, "Wrong size!"); |
| 745 | CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| 746 | } |
| 747 | CHECK(dctxSize0 != ZSTD_sizeof_DCtx(dctx), "No buffers allocated"); |
| 748 | DISPLAYLEVEL(3, "OK \n"); |
| 749 | |
| 750 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() stable out buffer : ", testNb++); |
| 751 | outBuff.pos = 0; |
| 752 | inBuff.pos = 0; |
| 753 | inBuff.size = 0; |
| 754 | while (inBuff.pos < cSize) { |
| 755 | inBuff.size += MIN(cSize - inBuff.pos, 1 + (FUZ_rand(&coreSeed) & 15)); |
| 756 | CHECK_Z(ZSTD_decompressStream(dctx, &outBuff, &inBuff)); |
| 757 | } |
| 758 | CHECK(outBuff.pos != CNBufferSize, "Wrong size!"); |
| 759 | CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| 760 | dctxSize1 = ZSTD_sizeof_DCtx(dctx); |
| 761 | CHECK(!(dctxSize0 < dctxSize1), "Input buffer allocated"); |
| 762 | DISPLAYLEVEL(3, "OK \n"); |
| 763 | |
| 764 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() stable out buffer too small : ", testNb++); |
| 765 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| 766 | CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| 767 | inBuff.src = compressedBuffer; |
| 768 | inBuff.size = cSize; |
| 769 | inBuff.pos = 0; |
| 770 | outBuff.pos = 0; |
| 771 | outBuff.size = CNBufferSize - 1; |
| 772 | { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| 773 | CHECK(ZSTD_getErrorCode(r) != ZSTD_error_dstSize_tooSmall, "Must error but got %s", ZSTD_getErrorName(r)); |
| 774 | } |
| 775 | DISPLAYLEVEL(3, "OK \n"); |
| 776 | |
| 777 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() stable out buffer modified : ", testNb++); |
| 778 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| 779 | CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 1)); |
| 780 | inBuff.src = compressedBuffer; |
| 781 | inBuff.size = cSize - 1; |
| 782 | inBuff.pos = 0; |
| 783 | outBuff.pos = 0; |
| 784 | outBuff.size = CNBufferSize; |
| 785 | CHECK_Z(ZSTD_decompressStream(dctx, &outBuff, &inBuff)); |
| 786 | ++inBuff.size; |
| 787 | outBuff.pos = 0; |
| 788 | { size_t const r = ZSTD_decompressStream(dctx, &outBuff, &inBuff); |
| 789 | CHECK(ZSTD_getErrorCode(r) != ZSTD_error_dstBuffer_wrong, "Must error but got %s", ZSTD_getErrorName(r)); |
| 790 | } |
| 791 | DISPLAYLEVEL(3, "OK \n"); |
| 792 | |
| 793 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() buffered output : ", testNb++); |
| 794 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| 795 | CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_stableOutBuffer, 0)); |
| 796 | outBuff.pos = 0; |
| 797 | inBuff.pos = 0; |
| 798 | inBuff.size = 0; |
| 799 | while (inBuff.pos < cSize) { |
| 800 | inBuff.size += MIN(cSize - inBuff.pos, 1 + (FUZ_rand(&coreSeed) & 15)); |
| 801 | CHECK_Z(ZSTD_decompressStream(dctx, &outBuff, &inBuff)); |
| 802 | } |
| 803 | CHECK(outBuff.pos != CNBufferSize, "Wrong size!"); |
| 804 | CHECK(memcmp(CNBuffer, outBuff.dst, CNBufferSize) != 0, "Corruption!"); |
| 805 | CHECK(!(dctxSize1 < ZSTD_sizeof_DCtx(dctx)), "Output buffer allocated"); |
| 806 | DISPLAYLEVEL(3, "OK \n"); |
| 807 | |
| 808 | ZSTD_freeDCtx(dctx); |
| 809 | } |
| 810 | |
| 811 | /* Compression with ZSTD_c_stable{In,Out}Buffer */ |
| 812 | { ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| 813 | ZSTD_inBuffer in; |
| 814 | ZSTD_outBuffer out; |
| 815 | size_t cctxSize1; |
| 816 | size_t cctxSize2; |
| 817 | assert(cctx != NULL); |
| 818 | in.src = CNBuffer; |
| 819 | in.size = CNBufferSize; |
| 820 | out.dst = compressedBuffer; |
| 821 | out.size = compressedBufferSize; |
| 822 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| 823 | DISPLAYLEVEL(3, "test%3i : ZSTD_compress2() uses stable input and output : ", testNb++); |
| 824 | CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize)); |
| 825 | CHECK(!(cSize < ZSTD_compressBound(CNBufferSize)), "cSize too large for test"); |
| 826 | CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, cSize + 4, CNBuffer, CNBufferSize)); |
| 827 | CHECK_Z(cctxSize1 = ZSTD_sizeof_CCtx(cctx)); |
| 828 | /* @cctxSize2 : sizeof_CCtx when doing full streaming (no stable in/out) */ |
| 829 | { ZSTD_CCtx* const cctx2 = ZSTD_createCCtx(); |
| 830 | assert(cctx2 != NULL); |
| 831 | in.pos = out.pos = 0; |
| 832 | CHECK_Z(ZSTD_compressStream2(cctx2, &out, &in, ZSTD_e_continue)); |
| 833 | CHECK(!(ZSTD_compressStream2(cctx2, &out, &in, ZSTD_e_end) == 0), "Not finished"); |
| 834 | CHECK_Z(cctxSize2 = ZSTD_sizeof_CCtx(cctx2)); |
| 835 | ZSTD_freeCCtx(cctx2); |
| 836 | } |
| 837 | /* @cctxSize1 : sizeof_CCtx when doing single-shot compression (no streaming) */ |
| 838 | { ZSTD_CCtx* const cctx1 = ZSTD_createCCtx(); |
| 839 | ZSTD_parameters params = ZSTD_getParams(0, CNBufferSize, 0); |
| 840 | size_t cSize3; |
| 841 | assert(cctx1 != NULL); |
| 842 | params.fParams.checksumFlag = 1; |
| 843 | cSize3 = ZSTD_compress_advanced(cctx1, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize, NULL, 0, params); |
| 844 | CHECK_Z(cSize3); |
| 845 | CHECK(!(cSize == cSize3), "Must be same compressed size"); |
| 846 | CHECK(!(cctxSize1 == ZSTD_sizeof_CCtx(cctx1)), "Must be same CCtx size"); |
| 847 | ZSTD_freeCCtx(cctx1); |
| 848 | } |
| 849 | CHECK(!(cctxSize1 < cctxSize2), "Stable buffers means less allocated size"); |
| 850 | CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| 851 | DISPLAYLEVEL(3, "OK \n"); |
| 852 | |
| 853 | DISPLAYLEVEL(3, "test%3i : ZSTD_compress2() doesn't modify user parameters : ", testNb++); |
| 854 | { int stableInBuffer; |
| 855 | int stableOutBuffer; |
| 856 | CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableInBuffer, &stableInBuffer)); |
| 857 | CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableOutBuffer, &stableOutBuffer)); |
| 858 | CHECK(!(stableInBuffer == 0), "Modified"); |
| 859 | CHECK(!(stableOutBuffer == 0), "Modified"); |
| 860 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1)); |
| 861 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableOutBuffer, 1)); |
| 862 | CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize)); |
| 863 | CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableInBuffer, &stableInBuffer)); |
| 864 | CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_stableOutBuffer, &stableOutBuffer)); |
| 865 | CHECK(!(stableInBuffer == 1), "Modified"); |
| 866 | CHECK(!(stableOutBuffer == 1), "Modified"); |
| 867 | } |
| 868 | DISPLAYLEVEL(3, "OK \n"); |
| 869 | |
| 870 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableInBuffer and ZSTD_c_stableOutBuffer : ", testNb++); |
| 871 | CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| 872 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| 873 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1)); |
| 874 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableOutBuffer, 1)); |
| 875 | in.pos = out.pos = 0; |
| 876 | CHECK(!(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end) == 0), "Not finished"); |
| 877 | CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| 878 | DISPLAYLEVEL(3, "OK \n"); |
| 879 | |
| 880 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableInBuffer and ZSTD_c_stableOutBuffer allocated size : ", testNb++); |
| 881 | { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| 882 | CHECK(!(cctxSize1 == cctxSize), "Must be the same size as single pass"); |
| 883 | } |
| 884 | DISPLAYLEVEL(3, "OK \n"); |
| 885 | |
| 886 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableInBuffer only : ", testNb++); |
| 887 | CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| 888 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| 889 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1)); |
| 890 | in.pos = out.pos = 0; |
| 891 | out.size = cSize / 4; |
| 892 | for (;;) { |
| 893 | size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end); |
| 894 | CHECK_Z(ret); |
| 895 | if (ret == 0) |
| 896 | break; |
| 897 | out.size = MIN(out.size + cSize / 4, compressedBufferSize); |
| 898 | } |
| 899 | CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| 900 | DISPLAYLEVEL(3, "OK \n"); |
| 901 | |
| 902 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableInBuffer modify buffer : ", testNb++); |
| 903 | in.pos = out.pos = 0; |
| 904 | out.size = cSize / 4; |
| 905 | CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end)); |
| 906 | in.src = (char const*)in.src + in.pos; |
| 907 | in.size -= in.pos; |
| 908 | in.pos = 0; |
| 909 | { size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end); |
| 910 | CHECK(!ZSTD_isError(ret), "Must error"); |
| 911 | CHECK(!(ZSTD_getErrorCode(ret) == ZSTD_error_stabilityCondition_notRespected), "Must be this error"); |
| 912 | } |
| 913 | DISPLAYLEVEL(3, "OK \n"); |
| 914 | |
| 915 | /* stableSrc + streaming */ |
| 916 | DISPLAYLEVEL(3, "test%3i : ZSTD_c_stableInBuffer compatibility with compressStream, flushStream and endStream : ", testNb++); |
| 917 | CHECK_Z( ZSTD_initCStream(cctx, 1) ); |
| 918 | CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1) ); |
| 919 | { ZSTD_inBuffer inBuf; |
| 920 | ZSTD_outBuffer outBuf; |
| 921 | const size_t nonZeroStartPos = 18; |
| 922 | const size_t inputSize = 500; |
| 923 | inBuf.src = CNBuffer; |
| 924 | inBuf.size = 100; |
| 925 | inBuf.pos = nonZeroStartPos; |
| 926 | outBuf.dst = (char*)(compressedBuffer)+cSize; |
| 927 | outBuf.size = ZSTD_compressBound(inputSize); |
| 928 | outBuf.pos = 0; |
| 929 | CHECK_Z( ZSTD_compressStream(cctx, &outBuf, &inBuf) ); |
| 930 | inBuf.size = 200; |
| 931 | CHECK_Z( ZSTD_compressStream(cctx, &outBuf, &inBuf) ); |
| 932 | CHECK_Z( ZSTD_flushStream(cctx, &outBuf) ); |
| 933 | inBuf.size = nonZeroStartPos + inputSize; |
| 934 | CHECK_Z( ZSTD_compressStream(cctx, &outBuf, &inBuf) ); |
| 935 | CHECK(ZSTD_endStream(cctx, &outBuf) != 0, "compression should be successful and fully flushed"); |
| 936 | { const void* const realSrcStart = (const char*)inBuf.src + nonZeroStartPos; |
| 937 | void* const verifBuf = (char*)outBuf.dst + outBuf.pos; |
| 938 | const size_t decSize = ZSTD_decompress(verifBuf, inputSize, outBuf.dst, outBuf.pos); |
| 939 | CHECK_Z(decSize); |
| 940 | CHECK(decSize != inputSize, "regenerated %zu bytes, instead of %zu", decSize, inputSize); |
| 941 | CHECK(memcmp(realSrcStart, verifBuf, inputSize) != 0, "regenerated data different from original"); |
| 942 | } } |
| 943 | DISPLAYLEVEL(3, "OK \n"); |
| 944 | |
| 945 | /* stableSrc + streaming */ |
| 946 | DISPLAYLEVEL(3, "test%3i : ZSTD_c_stableInBuffer compatibility with compressStream2, using different end directives : ", testNb++); |
| 947 | CHECK_Z( ZSTD_initCStream(cctx, 1) ); |
| 948 | CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1) ); |
| 949 | { ZSTD_inBuffer inBuf; |
| 950 | ZSTD_outBuffer outBuf; |
| 951 | const size_t nonZeroStartPos = 18; |
| 952 | const size_t inputSize = 500; |
| 953 | inBuf.src = CNBuffer; |
| 954 | inBuf.size = 100; |
| 955 | inBuf.pos = nonZeroStartPos; |
| 956 | outBuf.dst = (char*)(compressedBuffer)+cSize; |
| 957 | outBuf.size = ZSTD_compressBound(inputSize); |
| 958 | outBuf.pos = 0; |
| 959 | CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_continue) ); |
| 960 | inBuf.size = 200; |
| 961 | CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_continue) ); |
| 962 | CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_flush) ); |
| 963 | inBuf.size = nonZeroStartPos + inputSize; |
| 964 | CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_continue) ); |
| 965 | CHECK( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_end) != 0, "compression should be successful and fully flushed"); |
| 966 | { const void* const realSrcStart = (const char*)inBuf.src + nonZeroStartPos; |
| 967 | void* const verifBuf = (char*)outBuf.dst + outBuf.pos; |
| 968 | const size_t decSize = ZSTD_decompress(verifBuf, inputSize, outBuf.dst, outBuf.pos); |
| 969 | CHECK_Z(decSize); |
| 970 | CHECK(decSize != inputSize, "regenerated %zu bytes, instead of %zu", decSize, inputSize); |
| 971 | CHECK(memcmp(realSrcStart, verifBuf, inputSize) != 0, "regenerated data different from original"); |
| 972 | } } |
| 973 | DISPLAYLEVEL(3, "OK \n"); |
| 974 | |
| 975 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableInBuffer: context size : ", testNb++); |
| 976 | { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| 977 | DISPLAYLEVEL(4, "cctxSize1=%zu; cctxSize=%zu; cctxSize2=%zu : ", cctxSize1, cctxSize, cctxSize2); |
| 978 | CHECK(!(cctxSize1 < cctxSize), "Must be bigger than single-pass"); |
| 979 | CHECK(!(cctxSize < cctxSize2), "Must be smaller than streaming"); |
| 980 | cctxSize1 = cctxSize; |
| 981 | } |
| 982 | DISPLAYLEVEL(3, "OK \n"); |
| 983 | |
| 984 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableOutBuffer only : ", testNb++); |
| 985 | CHECK_Z(ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters)); |
| 986 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1)); |
| 987 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableOutBuffer, 1)); |
| 988 | in.src = CNBuffer; |
| 989 | in.pos = out.pos = 0; |
| 990 | in.size = MIN(CNBufferSize, 10); |
| 991 | out.size = compressedBufferSize; |
| 992 | CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_flush)); |
| 993 | in.pos = 0; |
| 994 | in.size = CNBufferSize - in.size; |
| 995 | CHECK(!(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_end) == 0), "Not finished"); |
| 996 | CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, out.pos)); |
| 997 | DISPLAYLEVEL(3, "OK \n"); |
| 998 | |
| 999 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() ZSTD_c_stableOutBuffer modify buffer : ", testNb++); |
| 1000 | in.pos = out.pos = 0; |
| 1001 | in.size = CNBufferSize; |
| 1002 | CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue)); |
| 1003 | in.pos = out.pos = 0; |
| 1004 | { size_t const ret = ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue); |
| 1005 | CHECK(!ZSTD_isError(ret), "Must have errored"); |
| 1006 | CHECK(!(ZSTD_getErrorCode(ret) == ZSTD_error_stabilityCondition_notRespected), "Must be this error"); |
| 1007 | } |
| 1008 | DISPLAYLEVEL(3, "OK \n"); |
| 1009 | |
| 1010 | DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableOutBuffer: context size : ", testNb++); |
| 1011 | { size_t const cctxSize = ZSTD_sizeof_CCtx(cctx); |
| 1012 | DISPLAYLEVEL(4, "cctxSize1=%zu; cctxSize=%zu; cctxSize2=%zu : ", cctxSize1, cctxSize, cctxSize2); |
| 1013 | CHECK(!(cctxSize1 < cctxSize), "Must be bigger than single-pass and stableInBuffer"); |
| 1014 | CHECK(!(cctxSize < cctxSize2), "Must be smaller than streaming"); |
| 1015 | } |
| 1016 | DISPLAYLEVEL(3, "OK \n"); |
| 1017 | |
| 1018 | ZSTD_freeCCtx(cctx); |
| 1019 | } |
| 1020 | |
| 1021 | /* CDict scenario */ |
| 1022 | DISPLAYLEVEL(3, "test%3i : digested dictionary : ", testNb++); |
| 1023 | { ZSTD_CDict* const cdict = ZSTD_createCDict(dictionary.start, dictionary.filled, 1 /*byRef*/ ); |
| 1024 | size_t const initError = ZSTD_initCStream_usingCDict(zc, cdict); |
| 1025 | DISPLAYLEVEL(5, "ZSTD_initCStream_usingCDict result : %u ", (unsigned)initError); |
| 1026 | if (ZSTD_isError(initError)) goto _output_error; |
| 1027 | outBuff.dst = compressedBuffer; |
| 1028 | outBuff.size = compressedBufferSize; |
| 1029 | outBuff.pos = 0; |
| 1030 | inBuff.src = CNBuffer; |
| 1031 | inBuff.size = CNBufferSize; |
| 1032 | inBuff.pos = 0; |
| 1033 | DISPLAYLEVEL(5, "- starting ZSTD_compressStream "); |
| 1034 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 1035 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1036 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 1037 | DISPLAYLEVEL(5, "- ZSTD_endStream result : %u ", (unsigned)r); |
| 1038 | if (r != 0) goto _output_error; /* error, or some data not flushed */ |
| 1039 | } |
| 1040 | cSize = outBuff.pos; |
| 1041 | ZSTD_freeCDict(cdict); |
| 1042 | DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); |
| 1043 | } |
| 1044 | |
| 1045 | DISPLAYLEVEL(3, "test%3i : check CStream size : ", testNb++); |
| 1046 | { size_t const s = ZSTD_sizeof_CStream(zc); |
| 1047 | if (ZSTD_isError(s)) goto _output_error; |
| 1048 | DISPLAYLEVEL(3, "OK (%u bytes) \n", (unsigned)s); |
| 1049 | } |
| 1050 | |
| 1051 | DISPLAYLEVEL(4, "test%3i : check Dictionary ID : ", testNb++); |
| 1052 | { unsigned const dID = ZSTD_getDictID_fromFrame(compressedBuffer, cSize); |
| 1053 | if (dID != dictID) goto _output_error; |
| 1054 | DISPLAYLEVEL(4, "OK (%u) \n", dID); |
| 1055 | } |
| 1056 | |
| 1057 | /* DDict scenario */ |
| 1058 | DISPLAYLEVEL(3, "test%3i : decompress %u bytes with digested dictionary : ", testNb++, (unsigned)CNBufferSize); |
| 1059 | { ZSTD_DDict* const ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); |
| 1060 | size_t const initError = ZSTD_initDStream_usingDDict(zd, ddict); |
| 1061 | if (ZSTD_isError(initError)) goto _output_error; |
| 1062 | outBuff.dst = decodedBuffer; |
| 1063 | outBuff.size = CNBufferSize; |
| 1064 | outBuff.pos = 0; |
| 1065 | inBuff.src = compressedBuffer; |
| 1066 | inBuff.size = cSize; |
| 1067 | inBuff.pos = 0; |
| 1068 | { size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 1069 | if (r != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ |
| 1070 | if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */ |
| 1071 | if (inBuff.pos != inBuff.size) goto _output_error; /* should have read the entire frame */ |
| 1072 | ZSTD_freeDDict(ddict); |
| 1073 | DISPLAYLEVEL(3, "OK \n"); |
| 1074 | } |
| 1075 | |
| 1076 | /* Memory restriction */ |
| 1077 | DISPLAYLEVEL(3, "test%3i : maxWindowSize < frame requirement : ", testNb++); |
| 1078 | ZSTD_initDStream_usingDict(zd, CNBuffer, dictSize); |
| 1079 | CHECK_Z( ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, 10) ); /* too small limit */ |
| 1080 | outBuff.dst = decodedBuffer; |
| 1081 | outBuff.size = CNBufferSize; |
| 1082 | outBuff.pos = 0; |
| 1083 | inBuff.src = compressedBuffer; |
| 1084 | inBuff.size = cSize; |
| 1085 | inBuff.pos = 0; |
| 1086 | { size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 1087 | if (!ZSTD_isError(r)) goto _output_error; /* must fail : frame requires > 100 bytes */ |
| 1088 | DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); } |
| 1089 | ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters); /* leave zd in good shape for next tests */ |
| 1090 | |
| 1091 | DISPLAYLEVEL(3, "test%3i : dictionary source size and level : ", testNb++); |
| 1092 | { ZSTD_DCtx* const dctx = ZSTD_createDCtx(); |
| 1093 | int const maxLevel = 16; /* first level with zstd_opt */ |
| 1094 | int level; |
| 1095 | assert(maxLevel < ZSTD_maxCLevel()); |
| 1096 | CHECK_Z( ZSTD_DCtx_loadDictionary_byReference(dctx, dictionary.start, dictionary.filled) ); |
| 1097 | for (level = 1; level <= maxLevel; ++level) { |
| 1098 | ZSTD_CDict* const cdict = ZSTD_createCDict(dictionary.start, dictionary.filled, level); |
| 1099 | size_t const maxSize = MIN(1 MB, CNBufferSize); |
| 1100 | size_t size; |
| 1101 | for (size = 512; size <= maxSize; size <<= 1) { |
| 1102 | U64 const crcOrig = XXH64(CNBuffer, size, 0); |
| 1103 | ZSTD_CCtx* const cctx = ZSTD_createCCtx(); |
| 1104 | ZSTD_parameters savedParams; |
| 1105 | getCCtxParams(cctx, &savedParams); |
| 1106 | outBuff.dst = compressedBuffer; |
| 1107 | outBuff.size = compressedBufferSize; |
| 1108 | outBuff.pos = 0; |
| 1109 | inBuff.src = CNBuffer; |
| 1110 | inBuff.size = size; |
| 1111 | inBuff.pos = 0; |
| 1112 | CHECK_Z(ZSTD_CCtx_refCDict(cctx, cdict)); |
| 1113 | CHECK_Z(ZSTD_compressStream2(cctx, &outBuff, &inBuff, ZSTD_e_end)); |
| 1114 | CHECK(badParameters(cctx, savedParams), "Bad CCtx params"); |
| 1115 | if (inBuff.pos != inBuff.size) goto _output_error; |
| 1116 | { ZSTD_outBuffer decOut = {decodedBuffer, size, 0}; |
| 1117 | ZSTD_inBuffer decIn = {outBuff.dst, outBuff.pos, 0}; |
| 1118 | CHECK_Z( ZSTD_decompressStream(dctx, &decOut, &decIn) ); |
| 1119 | if (decIn.pos != decIn.size) goto _output_error; |
| 1120 | if (decOut.pos != size) goto _output_error; |
| 1121 | { U64 const crcDec = XXH64(decOut.dst, decOut.pos, 0); |
| 1122 | if (crcDec != crcOrig) goto _output_error; |
| 1123 | } } |
| 1124 | ZSTD_freeCCtx(cctx); |
| 1125 | } |
| 1126 | ZSTD_freeCDict(cdict); |
| 1127 | } |
| 1128 | ZSTD_freeDCtx(dctx); |
| 1129 | } |
| 1130 | DISPLAYLEVEL(3, "OK\n"); |
| 1131 | |
| 1132 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters); |
| 1133 | CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dictionary.start, dictionary.filled) ); |
| 1134 | cSize = ZSTD_compress2(zc, compressedBuffer, compressedBufferSize, CNBuffer, MIN(CNBufferSize, 100 KB)); |
| 1135 | CHECK_Z(cSize); |
| 1136 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() with dictionary : ", testNb++); |
| 1137 | { |
| 1138 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 1139 | /* We should fail to decompress without a dictionary. */ |
| 1140 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| 1141 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1142 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1143 | size_t const ret = ZSTD_decompressStream(dctx, &out, &in); |
| 1144 | if (!ZSTD_isError(ret)) goto _output_error; |
| 1145 | } |
| 1146 | /* We should succeed to decompress with the dictionary. */ |
| 1147 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| 1148 | CHECK_Z( ZSTD_DCtx_loadDictionary(dctx, dictionary.start, dictionary.filled) ); |
| 1149 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1150 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1151 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1152 | if (in.pos != in.size) goto _output_error; |
| 1153 | } |
| 1154 | /* The dictionary should persist across calls. */ |
| 1155 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1156 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1157 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1158 | if (in.pos != in.size) goto _output_error; |
| 1159 | } |
| 1160 | /* The dictionary should not be cleared by ZSTD_reset_session_only. */ |
| 1161 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only); |
| 1162 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1163 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1164 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1165 | if (in.pos != in.size) goto _output_error; |
| 1166 | } |
| 1167 | /* When we reset the context the dictionary is cleared. */ |
| 1168 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| 1169 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1170 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1171 | size_t const ret = ZSTD_decompressStream(dctx, &out, &in); |
| 1172 | if (!ZSTD_isError(ret)) goto _output_error; |
| 1173 | } |
| 1174 | ZSTD_freeDCtx(dctx); |
| 1175 | } |
| 1176 | DISPLAYLEVEL(3, "OK \n"); |
| 1177 | |
| 1178 | DISPLAYLEVEL(3, "test%3i : ZSTD_resetDStream() with dictionary : ", testNb++); |
| 1179 | { |
| 1180 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 1181 | /* We should succeed to decompress with the dictionary. */ |
| 1182 | ZSTD_resetDStream(dctx); |
| 1183 | CHECK_Z( ZSTD_DCtx_loadDictionary(dctx, dictionary.start, dictionary.filled) ); |
| 1184 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1185 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1186 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1187 | if (in.pos != in.size) goto _output_error; |
| 1188 | } |
| 1189 | /* The dictionary should not be cleared by ZSTD_resetDStream(). */ |
| 1190 | ZSTD_resetDStream(dctx); |
| 1191 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1192 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1193 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1194 | if (in.pos != in.size) goto _output_error; |
| 1195 | } |
| 1196 | /* The dictionary should be cleared by ZSTD_initDStream(). */ |
| 1197 | CHECK_Z( ZSTD_initDStream(dctx) ); |
| 1198 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1199 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1200 | size_t const ret = ZSTD_decompressStream(dctx, &out, &in); |
| 1201 | if (!ZSTD_isError(ret)) goto _output_error; |
| 1202 | } |
| 1203 | ZSTD_freeDCtx(dctx); |
| 1204 | } |
| 1205 | DISPLAYLEVEL(3, "OK \n"); |
| 1206 | |
| 1207 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressStream() with ddict : ", testNb++); |
| 1208 | { |
| 1209 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 1210 | ZSTD_DDict* ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); |
| 1211 | /* We should succeed to decompress with the ddict. */ |
| 1212 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| 1213 | CHECK_Z( ZSTD_DCtx_refDDict(dctx, ddict) ); |
| 1214 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1215 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1216 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1217 | if (in.pos != in.size) goto _output_error; |
| 1218 | } |
| 1219 | /* The ddict should persist across calls. */ |
| 1220 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1221 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1222 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1223 | if (in.pos != in.size) goto _output_error; |
| 1224 | } |
| 1225 | /* When we reset the context the ddict is cleared. */ |
| 1226 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| 1227 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1228 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1229 | size_t const ret = ZSTD_decompressStream(dctx, &out, &in); |
| 1230 | if (!ZSTD_isError(ret)) goto _output_error; |
| 1231 | } |
| 1232 | ZSTD_freeDCtx(dctx); |
| 1233 | ZSTD_freeDDict(ddict); |
| 1234 | } |
| 1235 | DISPLAYLEVEL(3, "OK \n"); |
| 1236 | |
| 1237 | DISPLAYLEVEL(3, "test%3i : ZSTD_decompressDCtx() with prefix : ", testNb++); |
| 1238 | { |
| 1239 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 1240 | /* We should succeed to decompress with the prefix. */ |
| 1241 | ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters); |
| 1242 | CHECK_Z( ZSTD_DCtx_refPrefix_advanced(dctx, dictionary.start, dictionary.filled, ZSTD_dct_auto) ); |
| 1243 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1244 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1245 | if (ZSTD_decompressStream(dctx, &out, &in) != 0) goto _output_error; |
| 1246 | if (in.pos != in.size) goto _output_error; |
| 1247 | } |
| 1248 | /* The prefix should be cleared after the first compression. */ |
| 1249 | { ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1250 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1251 | size_t const ret = ZSTD_decompressStream(dctx, &out, &in); |
| 1252 | if (!ZSTD_isError(ret)) goto _output_error; |
| 1253 | } |
| 1254 | ZSTD_freeDCtx(dctx); |
| 1255 | } |
| 1256 | DISPLAYLEVEL(3, "OK \n"); |
| 1257 | |
| 1258 | DISPLAYLEVEL(3, "test%3i : ZSTD_initDStream*() with dictionary : ", testNb++); |
| 1259 | { |
| 1260 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 1261 | ZSTD_DDict* ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); |
| 1262 | size_t ret; |
| 1263 | /* We should succeed to decompress with the dictionary. */ |
| 1264 | CHECK_Z( ZSTD_initDStream_usingDict(dctx, dictionary.start, dictionary.filled) ); |
| 1265 | CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); |
| 1266 | /* The dictionary should persist across calls. */ |
| 1267 | CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); |
| 1268 | /* We should succeed to decompress with the ddict. */ |
| 1269 | CHECK_Z( ZSTD_initDStream_usingDDict(dctx, ddict) ); |
| 1270 | CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); |
| 1271 | /* The ddict should persist across calls. */ |
| 1272 | CHECK_Z( ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize) ); |
| 1273 | /* When we reset the context the ddict is cleared. */ |
| 1274 | CHECK_Z( ZSTD_initDStream(dctx) ); |
| 1275 | ret = ZSTD_decompressDCtx(dctx, decodedBuffer, decodedBufferSize, compressedBuffer, cSize); |
| 1276 | if (!ZSTD_isError(ret)) goto _output_error; |
| 1277 | ZSTD_freeDCtx(dctx); |
| 1278 | ZSTD_freeDDict(ddict); |
| 1279 | } |
| 1280 | DISPLAYLEVEL(3, "OK \n"); |
| 1281 | |
| 1282 | DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_usingCDict_advanced with masked dictID : ", testNb++); |
| 1283 | { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, CNBufferSize, dictionary.filled); |
| 1284 | ZSTD_frameParameters const fParams = { 1 /* contentSize */, 1 /* checksum */, 1 /* noDictID */}; |
| 1285 | ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_auto, cParams, ZSTD_defaultCMem); |
| 1286 | size_t const initError = ZSTD_initCStream_usingCDict_advanced(zc, cdict, fParams, CNBufferSize); |
| 1287 | if (ZSTD_isError(initError)) goto _output_error; |
| 1288 | outBuff.dst = compressedBuffer; |
| 1289 | outBuff.size = compressedBufferSize; |
| 1290 | outBuff.pos = 0; |
| 1291 | inBuff.src = CNBuffer; |
| 1292 | inBuff.size = CNBufferSize; |
| 1293 | inBuff.pos = 0; |
| 1294 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 1295 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1296 | { size_t const r = ZSTD_endStream(zc, &outBuff); |
| 1297 | if (r != 0) goto _output_error; } /* error, or some data not flushed */ |
| 1298 | cSize = outBuff.pos; |
| 1299 | ZSTD_freeCDict(cdict); |
| 1300 | DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); |
| 1301 | } |
| 1302 | |
| 1303 | DISPLAYLEVEL(3, "test%3i : try retrieving dictID from frame : ", testNb++); |
| 1304 | { U32 const did = ZSTD_getDictID_fromFrame(compressedBuffer, cSize); |
| 1305 | if (did != 0) goto _output_error; |
| 1306 | } |
| 1307 | DISPLAYLEVEL(3, "OK (not detected) \n"); |
| 1308 | |
| 1309 | DISPLAYLEVEL(3, "test%3i : decompress without dictionary : ", testNb++); |
| 1310 | { size_t const r = ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize); |
| 1311 | if (!ZSTD_isError(r)) goto _output_error; /* must fail : dictionary not used */ |
| 1312 | DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); |
| 1313 | } |
| 1314 | |
| 1315 | DISPLAYLEVEL(3, "test%3i : compress with ZSTD_CCtx_refPrefix : ", testNb++); |
| 1316 | CHECK_Z( ZSTD_CCtx_refPrefix(zc, dictionary.start, dictionary.filled) ); |
| 1317 | outBuff.dst = compressedBuffer; |
| 1318 | outBuff.size = compressedBufferSize; |
| 1319 | outBuff.pos = 0; |
| 1320 | inBuff.src = CNBuffer; |
| 1321 | inBuff.size = CNBufferSize; |
| 1322 | inBuff.pos = 0; |
| 1323 | CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) ); |
| 1324 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1325 | cSize = outBuff.pos; |
| 1326 | DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); |
| 1327 | |
| 1328 | DISPLAYLEVEL(3, "test%3i : decompress with ZSTD_DCtx_refPrefix : ", testNb++); |
| 1329 | CHECK_Z( ZSTD_DCtx_refPrefix(zd, dictionary.start, dictionary.filled) ); |
| 1330 | outBuff.dst = decodedBuffer; |
| 1331 | outBuff.size = CNBufferSize; |
| 1332 | outBuff.pos = 0; |
| 1333 | inBuff.src = compressedBuffer; |
| 1334 | inBuff.size = cSize; |
| 1335 | inBuff.pos = 0; |
| 1336 | CHECK_Z( ZSTD_decompressStream(zd, &outBuff, &inBuff) ); |
| 1337 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1338 | if (outBuff.pos != CNBufferSize) goto _output_error; /* must regenerate whole input */ |
| 1339 | DISPLAYLEVEL(3, "OK \n"); |
| 1340 | |
| 1341 | DISPLAYLEVEL(3, "test%3i : decompress without dictionary (should fail): ", testNb++); |
| 1342 | { size_t const r = ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize); |
| 1343 | if (!ZSTD_isError(r)) goto _output_error; /* must fail : dictionary not used */ |
| 1344 | DISPLAYLEVEL(3, "OK (%s)\n", ZSTD_getErrorName(r)); |
| 1345 | } |
| 1346 | |
| 1347 | DISPLAYLEVEL(3, "test%3i : compress again with ZSTD_compressStream2 : ", testNb++); |
| 1348 | outBuff.dst = compressedBuffer; |
| 1349 | outBuff.size = compressedBufferSize; |
| 1350 | outBuff.pos = 0; |
| 1351 | inBuff.src = CNBuffer; |
| 1352 | inBuff.size = CNBufferSize; |
| 1353 | inBuff.pos = 0; |
| 1354 | CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) ); |
| 1355 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1356 | cSize = outBuff.pos; |
| 1357 | DISPLAYLEVEL(3, "OK (%u bytes : %.2f%%)\n", (unsigned)cSize, (double)cSize/CNBufferSize*100); |
| 1358 | |
| 1359 | DISPLAYLEVEL(3, "test%3i : decompress without dictionary (should work): ", testNb++); |
| 1360 | CHECK_Z( ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize) ); |
| 1361 | DISPLAYLEVEL(3, "OK \n"); |
| 1362 | |
| 1363 | /* Empty srcSize */ |
| 1364 | DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_advanced with pledgedSrcSize=0 and dict : ", testNb++); |
| 1365 | { ZSTD_parameters params = ZSTD_getParams(5, 0, 0); |
| 1366 | params.fParams.contentSizeFlag = 1; |
| 1367 | CHECK_Z( ZSTD_initCStream_advanced(zc, dictionary.start, dictionary.filled, params, 0 /* pledgedSrcSize==0 means "empty" when params.fParams.contentSizeFlag is set */) ); |
| 1368 | } /* cstream advanced shall write content size = 0 */ |
| 1369 | outBuff.dst = compressedBuffer; |
| 1370 | outBuff.size = compressedBufferSize; |
| 1371 | outBuff.pos = 0; |
| 1372 | inBuff.src = CNBuffer; |
| 1373 | inBuff.size = 0; |
| 1374 | inBuff.pos = 0; |
| 1375 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 1376 | if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; |
| 1377 | cSize = outBuff.pos; |
| 1378 | if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != 0) goto _output_error; |
| 1379 | DISPLAYLEVEL(3, "OK \n"); |
| 1380 | |
| 1381 | DISPLAYLEVEL(3, "test%3i : pledgedSrcSize == 0 behaves properly with ZSTD_initCStream_advanced : ", testNb++); |
| 1382 | { ZSTD_parameters params = ZSTD_getParams(5, 0, 0); |
| 1383 | params.fParams.contentSizeFlag = 1; |
| 1384 | CHECK_Z( ZSTD_initCStream_advanced(zc, NULL, 0, params, 0) ); |
| 1385 | } /* cstream advanced shall write content size = 0 */ |
| 1386 | inBuff.src = CNBuffer; |
| 1387 | inBuff.size = 0; |
| 1388 | inBuff.pos = 0; |
| 1389 | outBuff.dst = compressedBuffer; |
| 1390 | outBuff.size = compressedBufferSize; |
| 1391 | outBuff.pos = 0; |
| 1392 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 1393 | if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; |
| 1394 | cSize = outBuff.pos; |
| 1395 | if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != 0) goto _output_error; |
| 1396 | |
| 1397 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 1398 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, ZSTD_CONTENTSIZE_UNKNOWN) ); |
| 1399 | outBuff.dst = compressedBuffer; |
| 1400 | outBuff.size = compressedBufferSize; |
| 1401 | outBuff.pos = 0; |
| 1402 | inBuff.src = CNBuffer; |
| 1403 | inBuff.size = 0; |
| 1404 | inBuff.pos = 0; |
| 1405 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 1406 | if (ZSTD_endStream(zc, &outBuff) != 0) goto _output_error; |
| 1407 | cSize = outBuff.pos; |
| 1408 | if (ZSTD_findDecompressedSize(compressedBuffer, cSize) != ZSTD_CONTENTSIZE_UNKNOWN) goto _output_error; |
| 1409 | DISPLAYLEVEL(3, "OK \n"); |
| 1410 | |
| 1411 | /* Basic multithreading compression test */ |
| 1412 | DISPLAYLEVEL(3, "test%3i : compress %u bytes with multiple threads : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); |
| 1413 | { int jobSize; |
| 1414 | CHECK_Z( ZSTD_CCtx_getParameter(mtctx, ZSTD_c_jobSize, &jobSize)); |
| 1415 | CHECK(jobSize != 0, "job size non-zero"); |
| 1416 | CHECK_Z( ZSTD_CCtx_getParameter(mtctx, ZSTD_c_jobSize, &jobSize)); |
| 1417 | CHECK(jobSize != 0, "job size non-zero"); |
| 1418 | } |
| 1419 | outBuff.dst = compressedBuffer; |
| 1420 | outBuff.size = compressedBufferSize; |
| 1421 | outBuff.pos = 0; |
| 1422 | inBuff.src = CNBuffer; |
| 1423 | inBuff.size = CNBufferSize; |
| 1424 | inBuff.pos = 0; |
| 1425 | { size_t const compressResult = ZSTD_compressStream2(mtctx, &outBuff, &inBuff, ZSTD_e_end); |
| 1426 | if (compressResult != 0) goto _output_error; /* compression must be completed in a single round */ |
| 1427 | } |
| 1428 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1429 | { size_t const compressedSize = ZSTD_findFrameCompressedSize(compressedBuffer, outBuff.pos); |
| 1430 | if (compressedSize != outBuff.pos) goto _output_error; /* must be a full valid frame */ |
| 1431 | } |
| 1432 | DISPLAYLEVEL(3, "OK \n"); |
| 1433 | |
| 1434 | /* Complex multithreading + dictionary test */ |
| 1435 | { U32 const nbWorkers = 2; |
| 1436 | size_t const jobSize = 4 * 1 MB; |
| 1437 | size_t const srcSize = jobSize * nbWorkers; /* we want each job to have predictable size */ |
| 1438 | size_t const segLength = 2 KB; |
| 1439 | size_t const offset = 600 KB; /* must be larger than window defined in cdict */ |
| 1440 | size_t const start = jobSize + (offset-1); |
| 1441 | const BYTE* const srcToCopy = (const BYTE*)CNBuffer + start; |
| 1442 | BYTE* const dst = (BYTE*)CNBuffer + start - offset; |
| 1443 | DISPLAYLEVEL(3, "test%3i : compress %u bytes with multiple threads + dictionary : ", testNb++, (unsigned)srcSize); |
| 1444 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, 3) ); |
| 1445 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_nbWorkers, nbWorkers) ); |
| 1446 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_jobSize, jobSize) ); |
| 1447 | assert(start > offset); |
| 1448 | assert(start + segLength < COMPRESSIBLE_NOISE_LENGTH); |
| 1449 | memcpy(dst, srcToCopy, segLength); /* create a long repetition at long distance for job 2 */ |
| 1450 | outBuff.dst = compressedBuffer; |
| 1451 | outBuff.size = compressedBufferSize; |
| 1452 | outBuff.pos = 0; |
| 1453 | inBuff.src = CNBuffer; |
| 1454 | inBuff.size = srcSize; assert(srcSize < COMPRESSIBLE_NOISE_LENGTH); |
| 1455 | inBuff.pos = 0; |
| 1456 | } |
| 1457 | { ZSTD_compressionParameters const cParams = ZSTD_getCParams(1, 4 KB, dictionary.filled); /* intentionally lies on estimatedSrcSize, to push cdict into targeting a small window size */ |
| 1458 | ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem); |
| 1459 | DISPLAYLEVEL(5, "cParams.windowLog = %u : ", cParams.windowLog); |
| 1460 | CHECK_Z( ZSTD_CCtx_refCDict(zc, cdict) ); |
| 1461 | CHECK_Z( ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end) ); |
| 1462 | CHECK_Z( ZSTD_CCtx_refCDict(zc, NULL) ); /* do not keep a reference to cdict, as its lifetime ends */ |
| 1463 | ZSTD_freeCDict(cdict); |
| 1464 | } |
| 1465 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1466 | cSize = outBuff.pos; |
| 1467 | DISPLAYLEVEL(3, "OK \n"); |
| 1468 | |
| 1469 | DISPLAYLEVEL(3, "test%3i : decompress large frame created from multiple threads + dictionary : ", testNb++); |
| 1470 | { ZSTD_DStream* const dstream = ZSTD_createDCtx(); |
| 1471 | ZSTD_frameHeader zfh; |
| 1472 | ZSTD_getFrameHeader(&zfh, compressedBuffer, cSize); |
| 1473 | DISPLAYLEVEL(5, "frame windowsize = %u : ", (unsigned)zfh.windowSize); |
| 1474 | outBuff.dst = decodedBuffer; |
| 1475 | outBuff.size = CNBufferSize; |
| 1476 | outBuff.pos = 0; |
| 1477 | inBuff.src = compressedBuffer; |
| 1478 | inBuff.pos = 0; |
| 1479 | CHECK_Z( ZSTD_initDStream_usingDict(dstream, dictionary.start, dictionary.filled) ); |
| 1480 | inBuff.size = 1; /* avoid shortcut to single-pass mode */ |
| 1481 | CHECK_Z( ZSTD_decompressStream(dstream, &outBuff, &inBuff) ); |
| 1482 | inBuff.size = cSize; |
| 1483 | CHECK_Z( ZSTD_decompressStream(dstream, &outBuff, &inBuff) ); |
| 1484 | if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */ |
| 1485 | ZSTD_freeDStream(dstream); |
| 1486 | } |
| 1487 | DISPLAYLEVEL(3, "OK \n"); |
| 1488 | |
| 1489 | DISPLAYLEVEL(3, "test%3i : check dictionary FSE tables can represent every code : ", testNb++); |
| 1490 | { unsigned const kMaxWindowLog = 24; |
| 1491 | unsigned value; |
| 1492 | ZSTD_compressionParameters cParams = ZSTD_getCParams(3, 1U << kMaxWindowLog, 1024); |
| 1493 | ZSTD_CDict* cdict; |
| 1494 | ZSTD_DDict* ddict; |
| 1495 | SEQ_stream seq = SEQ_initStream(0x87654321); |
| 1496 | SEQ_gen_type type; |
| 1497 | XXH64_state_t xxh; |
| 1498 | |
| 1499 | XXH64_reset(&xxh, 0); |
| 1500 | cParams.windowLog = kMaxWindowLog; |
| 1501 | cdict = ZSTD_createCDict_advanced(dictionary.start, dictionary.filled, ZSTD_dlm_byRef, ZSTD_dct_fullDict, cParams, ZSTD_defaultCMem); |
| 1502 | ddict = ZSTD_createDDict(dictionary.start, dictionary.filled); |
| 1503 | |
| 1504 | if (!cdict || !ddict) goto _output_error; |
| 1505 | |
| 1506 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_only); |
| 1507 | ZSTD_resetDStream(zd); |
| 1508 | CHECK_Z(ZSTD_CCtx_refCDict(zc, cdict)); |
| 1509 | CHECK_Z(ZSTD_initDStream_usingDDict(zd, ddict)); |
| 1510 | CHECK_Z(ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, kMaxWindowLog)); |
| 1511 | /* Test all values < 300 */ |
| 1512 | for (value = 0; value < 300; ++value) { |
| 1513 | for (type = (SEQ_gen_type)0; type < SEQ_gen_max; ++type) { |
| 1514 | CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value)); |
| 1515 | } |
| 1516 | } |
| 1517 | /* Test values 2^8 to 2^17 */ |
| 1518 | for (value = (1 << 8); value < (1 << 17); value <<= 1) { |
| 1519 | for (type = (SEQ_gen_type)0; type < SEQ_gen_max; ++type) { |
| 1520 | CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value)); |
| 1521 | CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, type, value + (value >> 2))); |
| 1522 | } |
| 1523 | } |
| 1524 | /* Test offset values up to the max window log */ |
| 1525 | for (value = 8; value <= kMaxWindowLog; ++value) { |
| 1526 | CHECK_Z(SEQ_generateRoundTrip(zc, zd, &xxh, &seq, SEQ_gen_of, (1U << value) - 1)); |
| 1527 | } |
| 1528 | |
| 1529 | CHECK_Z(SEQ_roundTrip(zc, zd, &xxh, NULL, 0, ZSTD_e_end)); |
| 1530 | CHECK(SEQ_digest(&seq) != XXH64_digest(&xxh), "SEQ XXH64 does not match"); |
| 1531 | |
| 1532 | ZSTD_freeCDict(cdict); |
| 1533 | ZSTD_freeDDict(ddict); |
| 1534 | } |
| 1535 | DISPLAYLEVEL(3, "OK \n"); |
| 1536 | |
| 1537 | DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_srcSize sets requestedParams : ", testNb++); |
| 1538 | { int level; |
| 1539 | CHECK_Z(ZSTD_initCStream_srcSize(zc, 11, ZSTD_CONTENTSIZE_UNKNOWN)); |
| 1540 | CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_compressionLevel, &level)); |
| 1541 | CHECK(level != 11, "Compression level does not match"); |
| 1542 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 1543 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, ZSTD_CONTENTSIZE_UNKNOWN) ); |
| 1544 | CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_compressionLevel, &level)); |
| 1545 | CHECK(level != 11, "Compression level does not match"); |
| 1546 | } |
| 1547 | DISPLAYLEVEL(3, "OK \n"); |
| 1548 | |
| 1549 | DISPLAYLEVEL(3, "test%3i : ZSTD_initCStream_advanced sets requestedParams : ", testNb++); |
| 1550 | { ZSTD_parameters const params = ZSTD_getParams(9, 0, 0); |
| 1551 | CHECK_Z(ZSTD_initCStream_advanced(zc, NULL, 0, params, ZSTD_CONTENTSIZE_UNKNOWN)); |
| 1552 | CHECK(badParameters(zc, params), "Compression parameters do not match"); |
| 1553 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 1554 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, ZSTD_CONTENTSIZE_UNKNOWN) ); |
| 1555 | CHECK(badParameters(zc, params), "Compression parameters do not match"); |
| 1556 | } |
| 1557 | DISPLAYLEVEL(3, "OK \n"); |
| 1558 | |
| 1559 | DISPLAYLEVEL(3, "test%3i : ZSTD_c_srcSizeHint bounds : ", testNb++); |
| 1560 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters); |
| 1561 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_srcSizeHint, INT_MAX)); |
| 1562 | { int srcSizeHint; |
| 1563 | CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_srcSizeHint, &srcSizeHint)); |
| 1564 | CHECK(!(srcSizeHint == INT_MAX), "srcSizeHint doesn't match"); |
| 1565 | } |
| 1566 | CHECK(!ZSTD_isError(ZSTD_CCtx_setParameter(zc, ZSTD_c_srcSizeHint, -1)), "Out of range doesn't error"); |
| 1567 | DISPLAYLEVEL(3, "OK \n"); |
| 1568 | |
| 1569 | DISPLAYLEVEL(3, "test%3i : ZSTD_lazy compress with hashLog = 29 and searchLog = 4 : ", testNb++); |
| 1570 | if (MEM_64bits()) { |
| 1571 | ZSTD_outBuffer out = { compressedBuffer, compressedBufferSize, 0 }; |
| 1572 | ZSTD_inBuffer in = { CNBuffer, CNBufferSize, 0 }; |
| 1573 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1574 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_strategy, ZSTD_lazy)); |
| 1575 | /* Force enable the row based match finder */ |
| 1576 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_useRowMatchFinder, ZSTD_ps_enable)); |
| 1577 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_searchLog, 4)); |
| 1578 | /* Set windowLog to 29 so the hashLog doesn't get sized down */ |
| 1579 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_windowLog, 29)); |
| 1580 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_hashLog, 29)); |
| 1581 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_checksumFlag, 1)); |
| 1582 | /* Compress with continue first so the hashLog doesn't get sized down */ |
| 1583 | CHECK_Z(ZSTD_compressStream2(zc, &out, &in, ZSTD_e_continue)); |
| 1584 | CHECK_Z(ZSTD_compressStream2(zc, &out, &in, ZSTD_e_end)); |
| 1585 | cSize = out.pos; |
| 1586 | CHECK_Z(ZSTD_decompress(decodedBuffer, CNBufferSize, compressedBuffer, cSize)); |
| 1587 | } |
| 1588 | DISPLAYLEVEL(3, "OK \n"); |
| 1589 | |
| 1590 | DISPLAYLEVEL(3, "test%3i : Test offset == windowSize : ", testNb++); |
| 1591 | { |
| 1592 | int windowLog; |
| 1593 | int const kMaxWindowLog = bigTests ? 29 : 26; |
| 1594 | size_t const kNbSequences = 10000; |
| 1595 | size_t const kMaxSrcSize = (1u << kMaxWindowLog) + 10 * kNbSequences; |
| 1596 | char* src = calloc(kMaxSrcSize, 1); |
| 1597 | ZSTD_Sequence* sequences = malloc(sizeof(ZSTD_Sequence) * kNbSequences); |
| 1598 | for (windowLog = ZSTD_WINDOWLOG_MIN; windowLog <= kMaxWindowLog; ++windowLog) { |
| 1599 | size_t const srcSize = ((size_t)1 << windowLog) + 10 * (kNbSequences - 1); |
| 1600 | |
| 1601 | sequences[0].offset = 32; |
| 1602 | sequences[0].litLength = 32; |
| 1603 | sequences[0].matchLength = (1u << windowLog) - 32; |
| 1604 | sequences[0].rep = 0; |
| 1605 | { |
| 1606 | size_t i; |
| 1607 | for (i = 1; i < kNbSequences; ++i) { |
| 1608 | sequences[i].offset = (1u << windowLog) - (FUZ_rand(&seed) % 8); |
| 1609 | sequences[i].litLength = FUZ_rand(&seed) & 7; |
| 1610 | sequences[i].matchLength = 10 - sequences[i].litLength; |
| 1611 | sequences[i].rep = 0; |
| 1612 | } |
| 1613 | } |
| 1614 | |
| 1615 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1616 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_checksumFlag, 1)); |
| 1617 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_minMatch, 3)); |
| 1618 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_validateSequences, 1)); |
| 1619 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_windowLog, windowLog)); |
| 1620 | assert(srcSize <= kMaxSrcSize); |
| 1621 | cSize = ZSTD_compressSequences(zc, compressedBuffer, compressedBufferSize, sequences, kNbSequences, src, srcSize); |
| 1622 | CHECK_Z(cSize); |
| 1623 | CHECK_Z(ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters)); |
| 1624 | CHECK_Z(ZSTD_DCtx_setParameter(zd, ZSTD_d_windowLogMax, windowLog)) |
| 1625 | { |
| 1626 | ZSTD_inBuffer in = {compressedBuffer, cSize, 0}; |
| 1627 | size_t decompressedBytes = 0; |
| 1628 | for (;;) { |
| 1629 | ZSTD_outBuffer out = {decodedBuffer, decodedBufferSize, 0}; |
| 1630 | size_t const ret = ZSTD_decompressStream(zd, &out, &in); |
| 1631 | CHECK_Z(ret); |
| 1632 | CHECK(decompressedBytes + out.pos > srcSize, "Output too large"); |
| 1633 | CHECK(memcmp(out.dst, src + decompressedBytes, out.pos), "Corrupted"); |
| 1634 | decompressedBytes += out.pos; |
| 1635 | if (ret == 0) { |
| 1636 | break; |
| 1637 | } |
| 1638 | } |
| 1639 | CHECK(decompressedBytes != srcSize, "Output wrong size"); |
| 1640 | } |
| 1641 | } |
| 1642 | free(sequences); |
| 1643 | free(src); |
| 1644 | } |
| 1645 | DISPLAYLEVEL(3, "OK \n"); |
| 1646 | |
| 1647 | /* Overlen overwriting window data bug */ |
| 1648 | DISPLAYLEVEL(3, "test%3i : wildcopy doesn't overwrite potential match data : ", testNb++); |
| 1649 | { /* This test has a window size of 1024 bytes and consists of 3 blocks: |
| 1650 | 1. 'a' repeated 517 times |
| 1651 | 2. 'b' repeated 516 times |
| 1652 | 3. a compressed block with no literals and 3 sequence commands: |
| 1653 | litlength = 0, offset = 24, match length = 24 |
| 1654 | litlength = 0, offset = 24, match length = 3 (this one creates an overlength write of length 2*WILDCOPY_OVERLENGTH - 3) |
| 1655 | litlength = 0, offset = 1021, match length = 3 (this one will try to read from overwritten data if the buffer is too small) */ |
| 1656 | |
| 1657 | const char* testCase = |
| 1658 | "\x28\xB5\x2F\xFD\x04\x00\x4C\x00\x00\x10\x61\x61\x01\x00\x00\x2A" |
| 1659 | "\x80\x05\x44\x00\x00\x08\x62\x01\x00\x00\x2A\x20\x04\x5D\x00\x00" |
| 1660 | "\x00\x03\x40\x00\x00\x64\x60\x27\xB0\xE0\x0C\x67\x62\xCE\xE0"; |
| 1661 | ZSTD_DStream* const zds = ZSTD_createDStream(); |
| 1662 | if (zds==NULL) goto _output_error; |
| 1663 | |
| 1664 | CHECK_Z( ZSTD_initDStream(zds) ); |
| 1665 | inBuff.src = testCase; |
| 1666 | inBuff.size = 47; |
| 1667 | inBuff.pos = 0; |
| 1668 | outBuff.dst = decodedBuffer; |
| 1669 | outBuff.size = CNBufferSize; |
| 1670 | outBuff.pos = 0; |
| 1671 | |
| 1672 | while (inBuff.pos < inBuff.size) { |
| 1673 | CHECK_Z( ZSTD_decompressStream(zds, &outBuff, &inBuff) ); |
| 1674 | } |
| 1675 | |
| 1676 | ZSTD_freeDStream(zds); |
| 1677 | } |
| 1678 | DISPLAYLEVEL(3, "OK \n"); |
| 1679 | |
| 1680 | /* Small Sequence Section bug */ |
| 1681 | DISPLAYLEVEL(3, "test%3i : decompress blocks with small sequences section : ", testNb++); |
| 1682 | { /* This test consists of 3 blocks. Each block has one sequence. |
| 1683 | The sequence has literal length of 10, match length of 10 and offset of 10. |
| 1684 | The sequence value and compression mode for the blocks are following: |
| 1685 | The order of values are ll, ml, of. |
| 1686 | - First block : (10, 7, 13) (rle, rle, rle) |
| 1687 | - size of sequences section: 6 bytes (1 byte for nbSeq, 1 byte for encoding mode, 3 bytes for rle, 1 byte bitstream) |
| 1688 | - Second block : (10, 7, 1) (repeat, repeat, rle) |
| 1689 | - size of sequences section: 4 bytes (1 byte for nbSeq, 1 byte for encoding mode, 1 bytes for rle, 1 byte bitstream) |
| 1690 | - Third block : (10, 7, 1) (repeat, repeat, repeat) |
| 1691 | - size of sequences section: 3 bytes (1 byte for nbSeq, 1 byte for encoding mode, 1 byte bitstream) */ |
| 1692 | |
| 1693 | unsigned char compressed[] = { |
| 1694 | 0x28, 0xb5, 0x2f, 0xfd, 0x24, 0x3c, 0x35, 0x01, 0x00, 0xf0, 0x85, 0x08, |
| 1695 | 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x4c, 0x6b, 0xa9, 0x8b, |
| 1696 | 0xbc, 0xc5, 0xb6, 0xd9, 0x7f, 0x4c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, |
| 1697 | 0x69, 0x94, 0x89, 0x1c, 0x03, 0x44, 0x0a, 0x07, 0x00, 0xb4, 0x04, 0x80, |
| 1698 | 0x40, 0x0a, 0xa4 |
| 1699 | }; |
| 1700 | unsigned int compressedSize = 51; |
| 1701 | unsigned char decompressed[] = { |
| 1702 | 0x85, 0x08, 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x85, 0x08, |
| 1703 | 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x4c, 0x6b, 0xa9, 0x8b, |
| 1704 | 0xbc, 0xc5, 0xb6, 0xd9, 0x7f, 0x4c, 0x4c, 0x6b, 0xa9, 0x8b, 0xbc, 0xc5, |
| 1705 | 0xb6, 0xd9, 0x7f, 0x4c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, 0x69, 0x94, |
| 1706 | 0x89, 0x1c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, 0x69, 0x94, 0x89, 0x1c |
| 1707 | }; |
| 1708 | unsigned int decompressedSize = 60; |
| 1709 | |
| 1710 | ZSTD_DStream* const zds = ZSTD_createDStream(); |
| 1711 | if (zds==NULL) goto _output_error; |
| 1712 | |
| 1713 | CHECK_Z( ZSTD_initDStream(zds) ); |
| 1714 | inBuff.src = compressed; |
| 1715 | inBuff.size = compressedSize; |
| 1716 | inBuff.pos = 0; |
| 1717 | outBuff.dst = decodedBuffer; |
| 1718 | outBuff.size = CNBufferSize; |
| 1719 | outBuff.pos = 0; |
| 1720 | |
| 1721 | CHECK(ZSTD_decompressStream(zds, &outBuff, &inBuff) != 0, |
| 1722 | "Decompress did not reach the end of frame"); |
| 1723 | CHECK(inBuff.pos != inBuff.size, "Decompress did not fully consume input"); |
| 1724 | CHECK(outBuff.pos != decompressedSize, "Decompressed size does not match"); |
| 1725 | CHECK(memcmp(outBuff.dst, decompressed, decompressedSize) != 0, |
| 1726 | "Decompressed data does not match"); |
| 1727 | |
| 1728 | ZSTD_freeDStream(zds); |
| 1729 | } |
| 1730 | DISPLAYLEVEL(3, "OK \n"); |
| 1731 | |
| 1732 | DISPLAYLEVEL(3, "test%3i : raw block can be streamed: ", testNb++); |
| 1733 | { size_t const inputSize = 10000; |
| 1734 | size_t const compCapacity = ZSTD_compressBound(inputSize); |
| 1735 | BYTE* const input = (BYTE*)malloc(inputSize); |
| 1736 | BYTE* const comp = (BYTE*)malloc(compCapacity); |
| 1737 | BYTE* const decomp = (BYTE*)malloc(inputSize); |
| 1738 | |
| 1739 | CHECK(input == NULL || comp == NULL || decomp == NULL, "failed to alloc buffers"); |
| 1740 | |
| 1741 | RDG_genBuffer(input, inputSize, 0.0, 0.0, seed); |
| 1742 | { size_t const compSize = ZSTD_compress(comp, compCapacity, input, inputSize, -(int)inputSize); |
| 1743 | ZSTD_inBuffer in = { comp, 0, 0 }; |
| 1744 | ZSTD_outBuffer out = { decomp, 0, 0 }; |
| 1745 | CHECK_Z(compSize); |
| 1746 | CHECK_Z( ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters) ); |
| 1747 | while (in.size < compSize) { |
| 1748 | in.size = MIN(in.size + 100, compSize); |
| 1749 | while (in.pos < in.size) { |
| 1750 | size_t const outPos = out.pos; |
| 1751 | if (out.pos == out.size) { |
| 1752 | out.size = MIN(out.size + 10, inputSize); |
| 1753 | } |
| 1754 | CHECK_Z( ZSTD_decompressStream(zd, &out, &in) ); |
| 1755 | CHECK(!(out.pos > outPos), "We are not streaming (no output generated)"); |
| 1756 | } |
| 1757 | } |
| 1758 | CHECK(in.pos != compSize, "Not all input consumed!"); |
| 1759 | CHECK(out.pos != inputSize, "Not all output produced!"); |
| 1760 | } |
| 1761 | CHECK(memcmp(input, decomp, inputSize), "round trip failed!"); |
| 1762 | |
| 1763 | free(input); |
| 1764 | free(comp); |
| 1765 | free(decomp); |
| 1766 | } |
| 1767 | DISPLAYLEVEL(3, "OK \n"); |
| 1768 | |
| 1769 | DISPLAYLEVEL(3, "test%3i : dictionary + uncompressible block + reusing tables checks offset table validity: ", testNb++); |
| 1770 | { ZSTD_CDict* const cdict = ZSTD_createCDict_advanced( |
| 1771 | dictionary.start, dictionary.filled, |
| 1772 | ZSTD_dlm_byRef, ZSTD_dct_fullDict, |
| 1773 | ZSTD_getCParams(3, 0, dictionary.filled), |
| 1774 | ZSTD_defaultCMem); |
| 1775 | const size_t inbufsize = 2 * 128 * 1024; /* 2 blocks */ |
| 1776 | const size_t outbufsize = ZSTD_compressBound(inbufsize); |
| 1777 | size_t inbufpos = 0; |
| 1778 | size_t cursegmentlen; |
| 1779 | BYTE *inbuf = (BYTE *)malloc(inbufsize); |
| 1780 | BYTE *outbuf = (BYTE *)malloc(outbufsize); |
| 1781 | BYTE *checkbuf = (BYTE *)malloc(inbufsize); |
| 1782 | size_t ret; |
| 1783 | |
| 1784 | CHECK(cdict == NULL, "failed to alloc cdict"); |
| 1785 | CHECK(inbuf == NULL, "failed to alloc input buffer"); |
| 1786 | |
| 1787 | /* first block is uncompressible */ |
| 1788 | cursegmentlen = 128 * 1024; |
| 1789 | RDG_genBuffer(inbuf + inbufpos, cursegmentlen, 0., 0., seed); |
| 1790 | inbufpos += cursegmentlen; |
| 1791 | |
| 1792 | /* second block is compressible */ |
| 1793 | cursegmentlen = 128 * 1024 - 256; |
| 1794 | RDG_genBuffer(inbuf + inbufpos, cursegmentlen, 0.05, 0., seed); |
| 1795 | inbufpos += cursegmentlen; |
| 1796 | |
| 1797 | /* and includes a very long backref */ |
| 1798 | cursegmentlen = 128; |
| 1799 | memcpy(inbuf + inbufpos, (BYTE*)dictionary.start + 256, cursegmentlen); |
| 1800 | inbufpos += cursegmentlen; |
| 1801 | |
| 1802 | /* and includes a very long backref */ |
| 1803 | cursegmentlen = 128; |
| 1804 | memcpy(inbuf + inbufpos, (BYTE*)dictionary.start + 128, cursegmentlen); |
| 1805 | inbufpos += cursegmentlen; |
| 1806 | |
| 1807 | ret = ZSTD_compress_usingCDict(zc, outbuf, outbufsize, inbuf, inbufpos, cdict); |
| 1808 | CHECK_Z(ret); |
| 1809 | |
| 1810 | ret = ZSTD_decompress_usingDict(zd, checkbuf, inbufsize, outbuf, ret, dictionary.start, dictionary.filled); |
| 1811 | CHECK_Z(ret); |
| 1812 | |
| 1813 | CHECK(memcmp(inbuf, checkbuf, inbufpos), "start and finish buffers don't match"); |
| 1814 | |
| 1815 | ZSTD_freeCDict(cdict); |
| 1816 | free(inbuf); |
| 1817 | free(outbuf); |
| 1818 | free(checkbuf); |
| 1819 | } |
| 1820 | DISPLAYLEVEL(3, "OK \n"); |
| 1821 | |
| 1822 | DISPLAYLEVEL(3, "test%3i : dictionary + small blocks + reusing tables checks offset table validity: ", testNb++); |
| 1823 | { ZSTD_CDict* const cdict = ZSTD_createCDict_advanced( |
| 1824 | dictionary.start, dictionary.filled, |
| 1825 | ZSTD_dlm_byRef, ZSTD_dct_fullDict, |
| 1826 | ZSTD_getCParams(3, 0, dictionary.filled), |
| 1827 | ZSTD_defaultCMem); |
| 1828 | ZSTD_outBuffer out = {compressedBuffer, compressedBufferSize, 0}; |
| 1829 | int remainingInput = 256 * 1024; |
| 1830 | int offset; |
| 1831 | |
| 1832 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1833 | CHECK_Z(ZSTD_CCtx_refCDict(zc, cdict)); |
| 1834 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_checksumFlag, 1)); |
| 1835 | /* Write a bunch of 6 byte blocks */ |
| 1836 | while (remainingInput > 0) { |
| 1837 | char testBuffer[6] = "\xAA\xAA\xAA\xAA\xAA\xAA"; |
| 1838 | const size_t kSmallBlockSize = sizeof(testBuffer); |
| 1839 | ZSTD_inBuffer in = {testBuffer, kSmallBlockSize, 0}; |
| 1840 | |
| 1841 | CHECK_Z(ZSTD_compressStream2(zc, &out, &in, ZSTD_e_flush)); |
| 1842 | CHECK(in.pos != in.size, "input not fully consumed"); |
| 1843 | remainingInput -= kSmallBlockSize; |
| 1844 | } |
| 1845 | /* Write several very long offset matches into the dictionary */ |
| 1846 | for (offset = 1024; offset >= 0; offset -= 128) { |
| 1847 | ZSTD_inBuffer in = {(BYTE*)dictionary.start + offset, 128, 0}; |
| 1848 | ZSTD_EndDirective flush = offset > 0 ? ZSTD_e_continue : ZSTD_e_end; |
| 1849 | CHECK_Z(ZSTD_compressStream2(zc, &out, &in, flush)); |
| 1850 | CHECK(in.pos != in.size, "input not fully consumed"); |
| 1851 | } |
| 1852 | /* Ensure decompression works */ |
| 1853 | CHECK_Z(ZSTD_decompress_usingDict(zd, decodedBuffer, CNBufferSize, out.dst, out.pos, dictionary.start, dictionary.filled)); |
| 1854 | |
| 1855 | ZSTD_freeCDict(cdict); |
| 1856 | } |
| 1857 | DISPLAYLEVEL(3, "OK \n"); |
| 1858 | |
| 1859 | DISPLAYLEVEL(3, "test%3i : Block-Level External Sequence Producer API: ", testNb++); |
| 1860 | { |
| 1861 | size_t const dstBufSize = ZSTD_compressBound(CNBufferSize); |
| 1862 | BYTE* const dstBuf = (BYTE*)malloc(ZSTD_compressBound(dstBufSize)); |
| 1863 | size_t const checkBufSize = CNBufferSize; |
| 1864 | BYTE* const checkBuf = (BYTE*)malloc(checkBufSize); |
| 1865 | int enableFallback; |
| 1866 | EMF_testCase sequenceProducerState; |
| 1867 | |
| 1868 | CHECK(dstBuf == NULL || checkBuf == NULL, "allocation failed"); |
| 1869 | |
| 1870 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1871 | |
| 1872 | /* Reference external matchfinder outside the test loop to |
| 1873 | * check that the reference is preserved across compressions */ |
| 1874 | ZSTD_registerSequenceProducer(zc, &sequenceProducerState, zstreamSequenceProducer); |
| 1875 | |
| 1876 | for (enableFallback = 0; enableFallback <= 1; enableFallback++) { |
| 1877 | size_t testCaseId; |
| 1878 | size_t const numTestCases = 9; |
| 1879 | |
| 1880 | EMF_testCase const testCases[] = { |
| 1881 | EMF_ONE_BIG_SEQ, |
| 1882 | EMF_LOTS_OF_SEQS, |
| 1883 | EMF_ZERO_SEQS, |
| 1884 | EMF_BIG_ERROR, |
| 1885 | EMF_SMALL_ERROR, |
| 1886 | EMF_INVALID_OFFSET, |
| 1887 | EMF_INVALID_MATCHLEN, |
| 1888 | EMF_INVALID_LITLEN, |
| 1889 | EMF_INVALID_LAST_LITS |
| 1890 | }; |
| 1891 | |
| 1892 | ZSTD_ErrorCode const errorCodes[] = { |
| 1893 | ZSTD_error_no_error, |
| 1894 | ZSTD_error_no_error, |
| 1895 | ZSTD_error_sequenceProducer_failed, |
| 1896 | ZSTD_error_sequenceProducer_failed, |
| 1897 | ZSTD_error_sequenceProducer_failed, |
| 1898 | ZSTD_error_externalSequences_invalid, |
| 1899 | ZSTD_error_externalSequences_invalid, |
| 1900 | ZSTD_error_externalSequences_invalid, |
| 1901 | ZSTD_error_externalSequences_invalid |
| 1902 | }; |
| 1903 | |
| 1904 | for (testCaseId = 0; testCaseId < numTestCases; testCaseId++) { |
| 1905 | size_t res; |
| 1906 | |
| 1907 | int const compressionShouldSucceed = ( |
| 1908 | (errorCodes[testCaseId] == ZSTD_error_no_error) || |
| 1909 | (enableFallback && errorCodes[testCaseId] == ZSTD_error_sequenceProducer_failed) |
| 1910 | ); |
| 1911 | |
| 1912 | int const testWithSequenceValidation = ( |
| 1913 | testCases[testCaseId] == EMF_INVALID_OFFSET |
| 1914 | ); |
| 1915 | |
| 1916 | sequenceProducerState = testCases[testCaseId]; |
| 1917 | |
| 1918 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_only); |
| 1919 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_validateSequences, testWithSequenceValidation)); |
| 1920 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_enableSeqProducerFallback, enableFallback)); |
| 1921 | res = ZSTD_compress2(zc, dstBuf, dstBufSize, CNBuffer, CNBufferSize); |
| 1922 | |
| 1923 | if (compressionShouldSucceed) { |
| 1924 | CHECK(ZSTD_isError(res), "EMF: Compression error: %s", ZSTD_getErrorName(res)); |
| 1925 | CHECK_Z(ZSTD_decompress(checkBuf, checkBufSize, dstBuf, res)); |
| 1926 | CHECK(memcmp(CNBuffer, checkBuf, CNBufferSize) != 0, "EMF: Corruption!"); |
| 1927 | } else { |
| 1928 | CHECK(!ZSTD_isError(res), "EMF: Should have raised an error!"); |
| 1929 | CHECK( |
| 1930 | ZSTD_getErrorCode(res) != errorCodes[testCaseId], |
| 1931 | "EMF: Wrong error code: %s", ZSTD_getErrorName(res) |
| 1932 | ); |
| 1933 | } |
| 1934 | } |
| 1935 | |
| 1936 | /* Test compression with external matchfinder + empty src buffer */ |
| 1937 | { |
| 1938 | size_t res; |
| 1939 | sequenceProducerState = EMF_ZERO_SEQS; |
| 1940 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_only); |
| 1941 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_enableSeqProducerFallback, enableFallback)); |
| 1942 | res = ZSTD_compress2(zc, dstBuf, dstBufSize, CNBuffer, 0); |
| 1943 | CHECK(ZSTD_isError(res), "EMF: Compression error: %s", ZSTD_getErrorName(res)); |
| 1944 | CHECK(ZSTD_decompress(checkBuf, checkBufSize, dstBuf, res) != 0, "EMF: Empty src round trip failed!"); |
| 1945 | } |
| 1946 | } |
| 1947 | |
| 1948 | /* Test that reset clears the external matchfinder */ |
| 1949 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1950 | sequenceProducerState = EMF_BIG_ERROR; /* ensure zstd will fail if the matchfinder wasn't cleared */ |
| 1951 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_enableSeqProducerFallback, 0)); |
| 1952 | CHECK_Z(ZSTD_compress2(zc, dstBuf, dstBufSize, CNBuffer, CNBufferSize)); |
| 1953 | |
| 1954 | /* Test that registering mFinder == NULL clears the external matchfinder */ |
| 1955 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters); |
| 1956 | ZSTD_registerSequenceProducer(zc, &sequenceProducerState, zstreamSequenceProducer); |
| 1957 | sequenceProducerState = EMF_BIG_ERROR; /* ensure zstd will fail if the matchfinder wasn't cleared */ |
| 1958 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_enableSeqProducerFallback, 0)); |
| 1959 | ZSTD_registerSequenceProducer(zc, NULL, NULL); /* clear the external matchfinder */ |
| 1960 | CHECK_Z(ZSTD_compress2(zc, dstBuf, dstBufSize, CNBuffer, CNBufferSize)); |
| 1961 | |
| 1962 | /* Test that external matchfinder doesn't interact with older APIs */ |
| 1963 | ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters); |
| 1964 | ZSTD_registerSequenceProducer(zc, &sequenceProducerState, zstreamSequenceProducer); |
| 1965 | sequenceProducerState = EMF_BIG_ERROR; /* ensure zstd will fail if the matchfinder is used */ |
| 1966 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_enableSeqProducerFallback, 0)); |
| 1967 | CHECK_Z(ZSTD_compressCCtx(zc, dstBuf, dstBufSize, CNBuffer, CNBufferSize, 3)); |
| 1968 | |
| 1969 | /* Test that compression returns the correct error with LDM */ |
| 1970 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1971 | { |
| 1972 | size_t res; |
| 1973 | ZSTD_registerSequenceProducer(zc, &sequenceProducerState, zstreamSequenceProducer); |
| 1974 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_enableLongDistanceMatching, ZSTD_ps_enable)); |
| 1975 | res = ZSTD_compress2(zc, dstBuf, dstBufSize, CNBuffer, CNBufferSize); |
| 1976 | CHECK(!ZSTD_isError(res), "EMF: Should have raised an error!"); |
| 1977 | CHECK( |
| 1978 | ZSTD_getErrorCode(res) != ZSTD_error_parameter_combination_unsupported, |
| 1979 | "EMF: Wrong error code: %s", ZSTD_getErrorName(res) |
| 1980 | ); |
| 1981 | } |
| 1982 | |
| 1983 | #ifdef ZSTD_MULTITHREAD |
| 1984 | /* Test that compression returns the correct error with nbWorkers > 0 */ |
| 1985 | CHECK_Z(ZSTD_CCtx_reset(zc, ZSTD_reset_session_and_parameters)); |
| 1986 | { |
| 1987 | size_t res; |
| 1988 | ZSTD_registerSequenceProducer(zc, &sequenceProducerState, zstreamSequenceProducer); |
| 1989 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_nbWorkers, 1)); |
| 1990 | res = ZSTD_compress2(zc, dstBuf, dstBufSize, CNBuffer, CNBufferSize); |
| 1991 | CHECK(!ZSTD_isError(res), "EMF: Should have raised an error!"); |
| 1992 | CHECK( |
| 1993 | ZSTD_getErrorCode(res) != ZSTD_error_parameter_combination_unsupported, |
| 1994 | "EMF: Wrong error code: %s", ZSTD_getErrorName(res) |
| 1995 | ); |
| 1996 | } |
| 1997 | #endif |
| 1998 | |
| 1999 | free(dstBuf); |
| 2000 | free(checkBuf); |
| 2001 | } |
| 2002 | DISPLAYLEVEL(3, "OK \n"); |
| 2003 | |
| 2004 | |
| 2005 | /* Test maxBlockSize cctx param functionality */ |
| 2006 | DISPLAYLEVEL(3, "test%3i : Testing maxBlockSize PR#3418: ", testNb++); |
| 2007 | { |
| 2008 | ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| 2009 | |
| 2010 | /* Quick test to make sure maxBlockSize bounds are enforced */ |
| 2011 | assert(ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, ZSTD_BLOCKSIZE_MAX_MIN - 1))); |
| 2012 | assert(ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, ZSTD_BLOCKSIZE_MAX + 1))); |
| 2013 | |
| 2014 | /* Test maxBlockSize < windowSize and windowSize < maxBlockSize*/ |
| 2015 | { |
| 2016 | size_t srcSize = 2 << 10; |
| 2017 | void* const src = CNBuffer; |
| 2018 | size_t dstSize = ZSTD_compressBound(srcSize); |
| 2019 | void* const dst1 = compressedBuffer; |
| 2020 | void* const dst2 = (BYTE*)compressedBuffer + dstSize; |
| 2021 | size_t size1, size2; |
| 2022 | void* const checkBuf = malloc(srcSize); |
| 2023 | memset(src, 'x', srcSize); |
| 2024 | |
| 2025 | /* maxBlockSize = 1KB */ |
| 2026 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, 1u << 10)); |
| 2027 | size1 = ZSTD_compress2(cctx, dst1, dstSize, src, srcSize); |
| 2028 | |
| 2029 | if (ZSTD_isError(size1)) goto _output_error; |
| 2030 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst1, size1)); |
| 2031 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2032 | |
| 2033 | /* maxBlockSize = 3KB */ |
| 2034 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, 3u << 10)); |
| 2035 | size2 = ZSTD_compress2(cctx, dst2, dstSize, src, srcSize); |
| 2036 | |
| 2037 | if (ZSTD_isError(size2)) goto _output_error; |
| 2038 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst2, size2)); |
| 2039 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2040 | |
| 2041 | assert(size1 - size2 == 4); /* We add another RLE block with header + character */ |
| 2042 | assert(memcmp(dst1, dst2, size2) != 0); /* Compressed output should not be equal */ |
| 2043 | |
| 2044 | /* maxBlockSize = 1KB, windowLog = 10 */ |
| 2045 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, 1u << 10)); |
| 2046 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 10)); |
| 2047 | size1 = ZSTD_compress2(cctx, dst1, dstSize, src, srcSize); |
| 2048 | |
| 2049 | if (ZSTD_isError(size1)) goto _output_error; |
| 2050 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst1, size1)); |
| 2051 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2052 | |
| 2053 | /* maxBlockSize = 3KB, windowLog = 10 */ |
| 2054 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, 3u << 10)); |
| 2055 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 10)); |
| 2056 | size2 = ZSTD_compress2(cctx, dst2, dstSize, src, srcSize); |
| 2057 | |
| 2058 | if (ZSTD_isError(size2)) goto _output_error; |
| 2059 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst2, size2)); |
| 2060 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2061 | |
| 2062 | assert(size1 == size2); |
| 2063 | assert(memcmp(dst1, dst2, size1) == 0); /* Compressed output should be equal */ |
| 2064 | |
| 2065 | free(checkBuf); |
| 2066 | } |
| 2067 | |
| 2068 | ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| 2069 | |
| 2070 | /* Test maxBlockSize = 0 is valid */ |
| 2071 | { size_t srcSize = 256 << 10; |
| 2072 | void* const src = CNBuffer; |
| 2073 | size_t dstSize = ZSTD_compressBound(srcSize); |
| 2074 | void* const dst1 = compressedBuffer; |
| 2075 | void* const dst2 = (BYTE*)compressedBuffer + dstSize; |
| 2076 | size_t size1, size2; |
| 2077 | void* const checkBuf = malloc(srcSize); |
| 2078 | |
| 2079 | /* maxBlockSize = 0 */ |
| 2080 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, 0)); |
| 2081 | size1 = ZSTD_compress2(cctx, dst1, dstSize, src, srcSize); |
| 2082 | |
| 2083 | if (ZSTD_isError(size1)) goto _output_error; |
| 2084 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst1, size1)); |
| 2085 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2086 | |
| 2087 | /* maxBlockSize = ZSTD_BLOCKSIZE_MAX */ |
| 2088 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_maxBlockSize, ZSTD_BLOCKSIZE_MAX)); |
| 2089 | size2 = ZSTD_compress2(cctx, dst2, dstSize, src, srcSize); |
| 2090 | |
| 2091 | if (ZSTD_isError(size2)) goto _output_error; |
| 2092 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst2, size2)); |
| 2093 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2094 | |
| 2095 | assert(size1 == size2); |
| 2096 | assert(memcmp(dst1, dst2, size1) == 0); /* Compressed output should be equal */ |
| 2097 | free(checkBuf); |
| 2098 | } |
| 2099 | ZSTD_freeCCtx(cctx); |
| 2100 | } |
| 2101 | DISPLAYLEVEL(3, "OK \n"); |
| 2102 | |
| 2103 | /* Test Sequence Validation */ |
| 2104 | DISPLAYLEVEL(3, "test%3i : Testing sequence validation: ", testNb++); |
| 2105 | { |
| 2106 | ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| 2107 | |
| 2108 | /* Test minMatch >= 4, matchLength < 4 */ |
| 2109 | { |
| 2110 | size_t srcSize = 11; |
| 2111 | void* const src = CNBuffer; |
| 2112 | size_t dstSize = ZSTD_compressBound(srcSize); |
| 2113 | void* const dst = compressedBuffer; |
| 2114 | size_t const kNbSequences = 4; |
| 2115 | ZSTD_Sequence* sequences = malloc(sizeof(ZSTD_Sequence) * kNbSequences); |
| 2116 | |
| 2117 | memset(src, 'x', srcSize); |
| 2118 | |
| 2119 | sequences[0] = (ZSTD_Sequence) {1, 1, 3, 0}; |
| 2120 | sequences[1] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2121 | sequences[2] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2122 | sequences[3] = (ZSTD_Sequence) {0, 1, 0, 0}; |
| 2123 | |
| 2124 | /* Test with sequence validation */ |
| 2125 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_minMatch, 5)); |
| 2126 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_explicitBlockDelimiters)); |
| 2127 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_validateSequences, 1)); |
| 2128 | |
| 2129 | cSize = ZSTD_compressSequences(cctx, dst, dstSize, |
| 2130 | sequences, kNbSequences, |
| 2131 | src, srcSize); |
| 2132 | |
| 2133 | CHECK(!ZSTD_isError(cSize), "Should throw an error"); /* maxNbSeq is too small and an assert will fail */ |
| 2134 | CHECK(ZSTD_getErrorCode(cSize) != ZSTD_error_externalSequences_invalid, "Wrong error code: %s", ZSTD_getErrorName(cSize)); /* fails sequence validation */ |
| 2135 | |
| 2136 | ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| 2137 | |
| 2138 | /* Test without sequence validation */ |
| 2139 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_minMatch, 5)); |
| 2140 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_explicitBlockDelimiters)); |
| 2141 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_validateSequences, 0)); |
| 2142 | |
| 2143 | cSize = ZSTD_compressSequences(cctx, dst, dstSize, |
| 2144 | sequences, kNbSequences, |
| 2145 | src, srcSize); |
| 2146 | |
| 2147 | CHECK(!ZSTD_isError(cSize), "Should throw an error"); /* maxNbSeq is too small and an assert will fail */ |
| 2148 | CHECK(ZSTD_getErrorCode(cSize) != ZSTD_error_externalSequences_invalid, "Wrong error code: %s", ZSTD_getErrorName(cSize)); /* fails sequence validation */ |
| 2149 | |
| 2150 | free(sequences); |
| 2151 | } |
| 2152 | |
| 2153 | ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| 2154 | |
| 2155 | |
| 2156 | /* Test with no block delim */ |
| 2157 | { |
| 2158 | size_t srcSize = 4; |
| 2159 | void* const src = CNBuffer; |
| 2160 | size_t dstSize = ZSTD_compressBound(srcSize); |
| 2161 | void* const dst = compressedBuffer; |
| 2162 | size_t const kNbSequences = 1; |
| 2163 | ZSTD_Sequence* sequences = malloc(sizeof(ZSTD_Sequence) * kNbSequences); |
| 2164 | void* const checkBuf = malloc(srcSize); |
| 2165 | |
| 2166 | memset(src, 'x', srcSize); |
| 2167 | |
| 2168 | sequences[0] = (ZSTD_Sequence) {1, 1, 3, 0}; |
| 2169 | |
| 2170 | /* Test with sequence validation */ |
| 2171 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_minMatch, 3)); |
| 2172 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_noBlockDelimiters)); |
| 2173 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_validateSequences, 1)); |
| 2174 | |
| 2175 | cSize = ZSTD_compressSequences(cctx, dst, dstSize, |
| 2176 | sequences, kNbSequences, |
| 2177 | src, srcSize); |
| 2178 | |
| 2179 | CHECK(ZSTD_isError(cSize), "Should not throw an error"); |
| 2180 | CHECK_Z(ZSTD_decompress(checkBuf, srcSize, dst, cSize)); |
| 2181 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2182 | |
| 2183 | free(sequences); |
| 2184 | free(checkBuf); |
| 2185 | } |
| 2186 | |
| 2187 | ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| 2188 | |
| 2189 | { /* Test case with two additional sequences */ |
| 2190 | size_t srcSize = 19; |
| 2191 | void* const src = CNBuffer; |
| 2192 | size_t dstSize = ZSTD_compressBound(srcSize); |
| 2193 | void* const dst = compressedBuffer; |
| 2194 | size_t const kNbSequences = 7; |
| 2195 | ZSTD_Sequence* sequences = malloc(sizeof(ZSTD_Sequence) * kNbSequences); |
| 2196 | |
| 2197 | memset(src, 'x', srcSize); |
| 2198 | |
| 2199 | sequences[0] = (ZSTD_Sequence) {1, 1, 3, 0}; |
| 2200 | sequences[1] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2201 | sequences[2] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2202 | sequences[3] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2203 | sequences[4] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2204 | sequences[5] = (ZSTD_Sequence) {1, 0, 3, 0}; |
| 2205 | sequences[6] = (ZSTD_Sequence) {0, 0, 0, 0}; |
| 2206 | |
| 2207 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_minMatch, 5)); |
| 2208 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_explicitBlockDelimiters)); |
| 2209 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_validateSequences, 1)); |
| 2210 | |
| 2211 | cSize = ZSTD_compressSequences(cctx, dst, dstSize, |
| 2212 | sequences, kNbSequences, |
| 2213 | src, srcSize); |
| 2214 | |
| 2215 | CHECK(!ZSTD_isError(cSize), "Should throw an error"); /* maxNbSeq is too small and an assert will fail */ |
| 2216 | CHECK(ZSTD_getErrorCode(cSize) != ZSTD_error_externalSequences_invalid, "Wrong error code: %s", ZSTD_getErrorName(cSize)); /* fails sequence validation */ |
| 2217 | |
| 2218 | ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters); |
| 2219 | |
| 2220 | /* Test without sequence validation */ |
| 2221 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_minMatch, 5)); |
| 2222 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_blockDelimiters, ZSTD_sf_explicitBlockDelimiters)); |
| 2223 | CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_validateSequences, 0)); |
| 2224 | |
| 2225 | cSize = ZSTD_compressSequences(cctx, dst, dstSize, |
| 2226 | sequences, kNbSequences, |
| 2227 | src, srcSize); |
| 2228 | |
| 2229 | CHECK(!ZSTD_isError(cSize), "Should throw an error"); /* maxNbSeq is too small and an assert will fail */ |
| 2230 | CHECK(ZSTD_getErrorCode(cSize) != ZSTD_error_externalSequences_invalid, "Wrong error code: %s", ZSTD_getErrorName(cSize)); /* fails sequence validation */ |
| 2231 | |
| 2232 | free(sequences); |
| 2233 | } |
| 2234 | ZSTD_freeCCtx(cctx); |
| 2235 | } |
| 2236 | DISPLAYLEVEL(3, "OK \n"); |
| 2237 | |
| 2238 | |
| 2239 | DISPLAYLEVEL(3, "test%3i : Testing large offset with small window size: ", testNb++); |
| 2240 | { |
| 2241 | ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
| 2242 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
| 2243 | |
| 2244 | /* Test large offset, small window size*/ |
| 2245 | { |
| 2246 | size_t srcSize = 21; |
| 2247 | void* const src = CNBuffer; |
| 2248 | size_t dstSize = ZSTD_compressBound(srcSize); |
| 2249 | void* const dst = compressedBuffer; |
| 2250 | size_t const kNbSequences = 4; |
| 2251 | ZSTD_Sequence* sequences = malloc(sizeof(ZSTD_Sequence) * kNbSequences); |
| 2252 | void* const checkBuf = malloc(srcSize); |
| 2253 | const size_t largeDictSize = 1 << 25; |
| 2254 | ZSTD_CDict* cdict = NULL; |
| 2255 | ZSTD_DDict* ddict = NULL; |
| 2256 | |
| 2257 | /* Generate large dictionary */ |
| 2258 | void* dictBuffer = calloc(largeDictSize, 1); |
| 2259 | ZSTD_compressionParameters cParams = ZSTD_getCParams(1, srcSize, largeDictSize); |
| 2260 | cParams.minMatch = ZSTD_MINMATCH_MIN; |
| 2261 | cParams.hashLog = ZSTD_HASHLOG_MIN; |
| 2262 | cParams.chainLog = ZSTD_CHAINLOG_MIN; |
| 2263 | |
| 2264 | cdict = ZSTD_createCDict_advanced(dictBuffer, largeDictSize, ZSTD_dlm_byRef, ZSTD_dct_rawContent, cParams, ZSTD_defaultCMem); |
| 2265 | ddict = ZSTD_createDDict_advanced(dictBuffer, largeDictSize, ZSTD_dlm_byRef, ZSTD_dct_rawContent, ZSTD_defaultCMem); |
| 2266 | |
| 2267 | ZSTD_CCtx_refCDict(cctx, cdict); |
| 2268 | ZSTD_DCtx_refDDict(dctx, ddict); |
| 2269 | |
| 2270 | sequences[0] = (ZSTD_Sequence) {3, 3, 3, 0}; |
| 2271 | sequences[1] = (ZSTD_Sequence) {1 << 25, 0, 3, 0}; |
| 2272 | sequences[2] = (ZSTD_Sequence) {1 << 25, 0, 9, 0}; |
| 2273 | sequences[3] = (ZSTD_Sequence) {3, 0, 3, 0}; |
| 2274 | |
| 2275 | cSize = ZSTD_compressSequences(cctx, dst, dstSize, |
| 2276 | sequences, kNbSequences, |
| 2277 | src, srcSize); |
| 2278 | |
| 2279 | CHECK(ZSTD_isError(cSize), "Should not throw an error"); |
| 2280 | |
| 2281 | { |
| 2282 | size_t dSize = ZSTD_decompressDCtx(dctx, checkBuf, srcSize, dst, cSize); |
| 2283 | CHECK(ZSTD_isError(dSize), "Should not throw an error"); |
| 2284 | CHECK(memcmp(src, checkBuf, srcSize) != 0, "Corruption!"); |
| 2285 | } |
| 2286 | |
| 2287 | free(sequences); |
| 2288 | free(checkBuf); |
| 2289 | free(dictBuffer); |
| 2290 | ZSTD_freeCDict(cdict); |
| 2291 | ZSTD_freeDDict(ddict); |
| 2292 | } |
| 2293 | ZSTD_freeCCtx(cctx); |
| 2294 | ZSTD_freeDCtx(dctx); |
| 2295 | } |
| 2296 | DISPLAYLEVEL(3, "OK \n"); |
| 2297 | |
| 2298 | _end: |
| 2299 | FUZ_freeDictionary(dictionary); |
| 2300 | ZSTD_freeCStream(zc); |
| 2301 | ZSTD_freeDStream(zd); |
| 2302 | ZSTD_freeCCtx(mtctx); |
| 2303 | free(CNBuffer); |
| 2304 | free(compressedBuffer); |
| 2305 | free(decodedBuffer); |
| 2306 | return testResult; |
| 2307 | |
| 2308 | _output_error: |
| 2309 | testResult = 1; |
| 2310 | DISPLAY("Error detected in Unit tests ! \n"); |
| 2311 | goto _end; |
| 2312 | } |
| 2313 | |
| 2314 | |
| 2315 | /* ====== Fuzzer tests ====== */ |
| 2316 | |
| 2317 | static size_t findDiff(const void* buf1, const void* buf2, size_t max) |
| 2318 | { |
| 2319 | const BYTE* b1 = (const BYTE*)buf1; |
| 2320 | const BYTE* b2 = (const BYTE*)buf2; |
| 2321 | size_t u; |
| 2322 | for (u=0; u<max; u++) { |
| 2323 | if (b1[u] != b2[u]) break; |
| 2324 | } |
| 2325 | if (u==max) { |
| 2326 | DISPLAY("=> No difference detected within %u bytes \n", (unsigned)max); |
| 2327 | return u; |
| 2328 | } |
| 2329 | DISPLAY("Error at position %u / %u \n", (unsigned)u, (unsigned)max); |
| 2330 | if (u>=3) |
| 2331 | DISPLAY(" %02X %02X %02X ", |
| 2332 | b1[u-3], b1[u-2], b1[u-1]); |
| 2333 | DISPLAY(" :%02X: %02X %02X %02X %02X %02X \n", |
| 2334 | b1[u], b1[u+1], b1[u+2], b1[u+3], b1[u+4], b1[u+5]); |
| 2335 | if (u>=3) |
| 2336 | DISPLAY(" %02X %02X %02X ", |
| 2337 | b2[u-3], b2[u-2], b2[u-1]); |
| 2338 | DISPLAY(" :%02X: %02X %02X %02X %02X %02X \n", |
| 2339 | b2[u], b2[u+1], b2[u+2], b2[u+3], b2[u+4], b2[u+5]); |
| 2340 | return u; |
| 2341 | } |
| 2342 | |
| 2343 | static size_t FUZ_rLogLength(U32* seed, U32 logLength) |
| 2344 | { |
| 2345 | size_t const lengthMask = ((size_t)1 << logLength) - 1; |
| 2346 | return (lengthMask+1) + (FUZ_rand(seed) & lengthMask); |
| 2347 | } |
| 2348 | |
| 2349 | static size_t FUZ_randomLength(U32* seed, U32 maxLog) |
| 2350 | { |
| 2351 | U32 const logLength = FUZ_rand(seed) % maxLog; |
| 2352 | return FUZ_rLogLength(seed, logLength); |
| 2353 | } |
| 2354 | |
| 2355 | /* Return value in range minVal <= v <= maxVal */ |
| 2356 | static U32 FUZ_randomClampedLength(U32* seed, U32 minVal, U32 maxVal) |
| 2357 | { |
| 2358 | U32 const mod = maxVal < minVal ? 1 : (maxVal + 1) - minVal; |
| 2359 | return (U32)((FUZ_rand(seed) % mod) + minVal); |
| 2360 | } |
| 2361 | |
| 2362 | static int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressibility, int bigTests) |
| 2363 | { |
| 2364 | U32 const maxSrcLog = bigTests ? 24 : 22; |
| 2365 | static const U32 maxSampleLog = 19; |
| 2366 | size_t const srcBufferSize = (size_t)1<<maxSrcLog; |
| 2367 | BYTE* cNoiseBuffer[5]; |
| 2368 | size_t const copyBufferSize = srcBufferSize + (1<<maxSampleLog); |
| 2369 | BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize); |
| 2370 | size_t const cBufferSize = ZSTD_compressBound(srcBufferSize); |
| 2371 | BYTE* const cBuffer = (BYTE*)malloc (cBufferSize); |
| 2372 | size_t const dstBufferSize = srcBufferSize; |
| 2373 | BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize); |
| 2374 | U32 result = 0; |
| 2375 | unsigned testNb = 0; |
| 2376 | U32 coreSeed = seed; |
| 2377 | ZSTD_CStream* zc = ZSTD_createCStream(); /* will be re-created sometimes */ |
| 2378 | ZSTD_DStream* zd = ZSTD_createDStream(); /* will be re-created sometimes */ |
| 2379 | ZSTD_DStream* const zd_noise = ZSTD_createDStream(); |
| 2380 | UTIL_time_t const startClock = UTIL_getTime(); |
| 2381 | const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */ |
| 2382 | size_t dictSize = 0; |
| 2383 | U32 oldTestLog = 0; |
| 2384 | U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel() : g_cLevelMax_smallTests; |
| 2385 | |
| 2386 | /* allocations */ |
| 2387 | cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize); |
| 2388 | cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize); |
| 2389 | cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize); |
| 2390 | cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize); |
| 2391 | cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize); |
| 2392 | CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] || |
| 2393 | !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise , |
| 2394 | "Not enough memory, fuzzer tests cancelled"); |
| 2395 | |
| 2396 | /* Create initial samples */ |
| 2397 | RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */ |
| 2398 | RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */ |
| 2399 | RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed); |
| 2400 | RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */ |
| 2401 | RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */ |
| 2402 | memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */ |
| 2403 | ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */ |
| 2404 | |
| 2405 | /* catch up testNb */ |
| 2406 | for (testNb=1; testNb < startTest; testNb++) |
| 2407 | FUZ_rand(&coreSeed); |
| 2408 | |
| 2409 | /* test loop */ |
| 2410 | for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) { |
| 2411 | U32 lseed; |
| 2412 | const BYTE* srcBuffer; |
| 2413 | size_t totalTestSize, totalGenSize, cSize; |
| 2414 | XXH64_state_t xxhState; |
| 2415 | U64 crcOrig; |
| 2416 | U32 resetAllowed = 1; |
| 2417 | size_t maxTestSize; |
| 2418 | |
| 2419 | /* init */ |
| 2420 | FUZ_rand(&coreSeed); |
| 2421 | lseed = coreSeed ^ prime32; |
| 2422 | if (nbTests >= testNb) { |
| 2423 | DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); |
| 2424 | } else { |
| 2425 | DISPLAYUPDATE(2, "\r%6u ", testNb); |
| 2426 | } |
| 2427 | |
| 2428 | /* states full reset (deliberately not synchronized) */ |
| 2429 | /* some issues can only happen when reusing states */ |
| 2430 | if ((FUZ_rand(&lseed) & 0xFF) == 131) { |
| 2431 | ZSTD_freeCStream(zc); |
| 2432 | zc = ZSTD_createCStream(); |
| 2433 | CHECK(zc==NULL, "ZSTD_createCStream : allocation error"); |
| 2434 | resetAllowed=0; |
| 2435 | } |
| 2436 | if ((FUZ_rand(&lseed) & 0xFF) == 132) { |
| 2437 | ZSTD_freeDStream(zd); |
| 2438 | zd = ZSTD_createDStream(); |
| 2439 | CHECK(zd==NULL, "ZSTD_createDStream : allocation error"); |
| 2440 | CHECK_Z( ZSTD_initDStream_usingDict(zd, NULL, 0) ); /* ensure at least one init */ |
| 2441 | } |
| 2442 | |
| 2443 | /* srcBuffer selection [0-4] */ |
| 2444 | { U32 buffNb = FUZ_rand(&lseed) & 0x7F; |
| 2445 | if (buffNb & 7) buffNb=2; /* most common : compressible (P) */ |
| 2446 | else { |
| 2447 | buffNb >>= 3; |
| 2448 | if (buffNb & 7) { |
| 2449 | const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */ |
| 2450 | buffNb = tnb[buffNb >> 3]; |
| 2451 | } else { |
| 2452 | const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */ |
| 2453 | buffNb = tnb[buffNb >> 3]; |
| 2454 | } } |
| 2455 | srcBuffer = cNoiseBuffer[buffNb]; |
| 2456 | } |
| 2457 | |
| 2458 | /* compression init */ |
| 2459 | if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */ |
| 2460 | && oldTestLog /* at least one test happened */ && resetAllowed) { |
| 2461 | maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2); |
| 2462 | maxTestSize = MIN(maxTestSize, srcBufferSize-16); |
| 2463 | { U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize; |
| 2464 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 2465 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) ); |
| 2466 | } |
| 2467 | } else { |
| 2468 | U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; |
| 2469 | U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog; |
| 2470 | U32 const cLevelCandidate = ( FUZ_rand(&lseed) % |
| 2471 | (ZSTD_maxCLevel() - |
| 2472 | (MAX(testLog, dictLog) / 3))) |
| 2473 | + 1; |
| 2474 | U32 const cLevel = MIN(cLevelCandidate, cLevelMax); |
| 2475 | maxTestSize = FUZ_rLogLength(&lseed, testLog); |
| 2476 | oldTestLog = testLog; |
| 2477 | /* random dictionary selection */ |
| 2478 | dictSize = ((FUZ_rand(&lseed)&7)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0; |
| 2479 | { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); |
| 2480 | dict = srcBuffer + dictStart; |
| 2481 | } |
| 2482 | { U64 const pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize; |
| 2483 | CHECK_Z( ZSTD_CCtx_reset(zc, ZSTD_reset_session_only) ); |
| 2484 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_compressionLevel, cLevel) ); |
| 2485 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_checksumFlag, FUZ_rand(&lseed) & 1) ); |
| 2486 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_contentSizeFlag, FUZ_rand(&lseed) & 1) ); |
| 2487 | CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_c_dictIDFlag, FUZ_rand(&lseed) & 1) ); |
| 2488 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) ); |
| 2489 | CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dict, dictSize) ); |
| 2490 | } } |
| 2491 | |
| 2492 | /* multi-segments compression test */ |
| 2493 | XXH64_reset(&xxhState, 0); |
| 2494 | { ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ; |
| 2495 | cSize=0; |
| 2496 | totalTestSize=0; |
| 2497 | while(totalTestSize < maxTestSize) { |
| 2498 | /* compress random chunks into randomly sized dst buffers */ |
| 2499 | { size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2500 | size_t const srcSize = MIN(maxTestSize-totalTestSize, randomSrcSize); |
| 2501 | size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize); |
| 2502 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2503 | size_t const dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); |
| 2504 | ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 }; |
| 2505 | outBuff.size = outBuff.pos + dstBuffSize; |
| 2506 | |
| 2507 | CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) ); |
| 2508 | |
| 2509 | XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos); |
| 2510 | memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos); |
| 2511 | totalTestSize += inBuff.pos; |
| 2512 | } |
| 2513 | |
| 2514 | /* random flush operation, to mess around */ |
| 2515 | if ((FUZ_rand(&lseed) & 15) == 0) { |
| 2516 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2517 | size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); |
| 2518 | outBuff.size = outBuff.pos + adjustedDstSize; |
| 2519 | CHECK_Z( ZSTD_flushStream(zc, &outBuff) ); |
| 2520 | } } |
| 2521 | |
| 2522 | /* final frame epilogue */ |
| 2523 | { size_t remainingToFlush = (size_t)(-1); |
| 2524 | while (remainingToFlush) { |
| 2525 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2526 | size_t const adjustedDstSize = MIN(cBufferSize - cSize, randomDstSize); |
| 2527 | outBuff.size = outBuff.pos + adjustedDstSize; |
| 2528 | remainingToFlush = ZSTD_endStream(zc, &outBuff); |
| 2529 | CHECK (ZSTD_isError(remainingToFlush), "end error : %s", ZSTD_getErrorName(remainingToFlush)); |
| 2530 | } } |
| 2531 | crcOrig = XXH64_digest(&xxhState); |
| 2532 | cSize = outBuff.pos; |
| 2533 | } |
| 2534 | |
| 2535 | /* multi - fragments decompression test */ |
| 2536 | if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) { |
| 2537 | CHECK_Z ( ZSTD_resetDStream(zd) ); |
| 2538 | } else { |
| 2539 | CHECK_Z ( ZSTD_initDStream_usingDict(zd, dict, dictSize) ); |
| 2540 | } |
| 2541 | { size_t decompressionResult = 1; |
| 2542 | ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; |
| 2543 | ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; |
| 2544 | for (totalGenSize = 0 ; decompressionResult ; ) { |
| 2545 | size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2546 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2547 | size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); |
| 2548 | inBuff.size = inBuff.pos + readCSrcSize; |
| 2549 | outBuff.size = outBuff.pos + dstBuffSize; |
| 2550 | decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 2551 | if (ZSTD_getErrorCode(decompressionResult) == ZSTD_error_checksum_wrong) { |
| 2552 | DISPLAY("checksum error : \n"); |
| 2553 | findDiff(copyBuffer, dstBuffer, totalTestSize); |
| 2554 | } |
| 2555 | CHECK( ZSTD_isError(decompressionResult), "decompression error : %s", |
| 2556 | ZSTD_getErrorName(decompressionResult) ); |
| 2557 | } |
| 2558 | CHECK (decompressionResult != 0, "frame not fully decoded"); |
| 2559 | CHECK (outBuff.pos != totalTestSize, "decompressed data : wrong size (%u != %u)", |
| 2560 | (unsigned)outBuff.pos, (unsigned)totalTestSize); |
| 2561 | CHECK (inBuff.pos != cSize, "compressed data should be fully read") |
| 2562 | { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); |
| 2563 | if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize); |
| 2564 | CHECK (crcDest!=crcOrig, "decompressed data corrupted"); |
| 2565 | } } |
| 2566 | |
| 2567 | /*===== noisy/erroneous src decompression test =====*/ |
| 2568 | |
| 2569 | /* add some noise */ |
| 2570 | { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2; |
| 2571 | U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) { |
| 2572 | size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2573 | size_t const noiseSize = MIN((cSize/3) , randomNoiseSize); |
| 2574 | size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize); |
| 2575 | size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize); |
| 2576 | memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize); |
| 2577 | } } |
| 2578 | |
| 2579 | /* try decompression on noisy data */ |
| 2580 | CHECK_Z( ZSTD_initDStream(zd_noise) ); /* note : no dictionary */ |
| 2581 | { ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; |
| 2582 | ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; |
| 2583 | while (outBuff.pos < dstBufferSize) { |
| 2584 | size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2585 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2586 | size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize); |
| 2587 | size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize); |
| 2588 | outBuff.size = outBuff.pos + adjustedDstSize; |
| 2589 | inBuff.size = inBuff.pos + adjustedCSrcSize; |
| 2590 | { size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 2591 | if (ZSTD_isError(decompressError)) break; /* error correctly detected */ |
| 2592 | /* No forward progress possible */ |
| 2593 | if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break; |
| 2594 | } } } } |
| 2595 | DISPLAY("\r%u fuzzer tests completed \n", testNb); |
| 2596 | |
| 2597 | _cleanup: |
| 2598 | ZSTD_freeCStream(zc); |
| 2599 | ZSTD_freeDStream(zd); |
| 2600 | ZSTD_freeDStream(zd_noise); |
| 2601 | free(cNoiseBuffer[0]); |
| 2602 | free(cNoiseBuffer[1]); |
| 2603 | free(cNoiseBuffer[2]); |
| 2604 | free(cNoiseBuffer[3]); |
| 2605 | free(cNoiseBuffer[4]); |
| 2606 | free(copyBuffer); |
| 2607 | free(cBuffer); |
| 2608 | free(dstBuffer); |
| 2609 | return result; |
| 2610 | |
| 2611 | _output_error: |
| 2612 | result = 1; |
| 2613 | goto _cleanup; |
| 2614 | } |
| 2615 | |
| 2616 | /** If useOpaqueAPI, sets param in cctxParams. |
| 2617 | * Otherwise, sets the param in zc. */ |
| 2618 | static size_t setCCtxParameter(ZSTD_CCtx* zc, ZSTD_CCtx_params* cctxParams, |
| 2619 | ZSTD_cParameter param, unsigned value, |
| 2620 | int useOpaqueAPI) |
| 2621 | { |
| 2622 | if (useOpaqueAPI) { |
| 2623 | return ZSTD_CCtxParams_setParameter(cctxParams, param, value); |
| 2624 | } else { |
| 2625 | return ZSTD_CCtx_setParameter(zc, param, value); |
| 2626 | } |
| 2627 | } |
| 2628 | |
| 2629 | /* Tests for ZSTD_compress_generic() API */ |
| 2630 | static int fuzzerTests_newAPI(U32 seed, int nbTests, int startTest, |
| 2631 | double compressibility, int bigTests) |
| 2632 | { |
| 2633 | U32 const maxSrcLog = bigTests ? 24 : 22; |
| 2634 | static const U32 maxSampleLog = 19; |
| 2635 | size_t const srcBufferSize = (size_t)1<<maxSrcLog; |
| 2636 | BYTE* cNoiseBuffer[5]; |
| 2637 | size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog); |
| 2638 | BYTE* const copyBuffer = (BYTE*)malloc (copyBufferSize); |
| 2639 | size_t const cBufferSize = ZSTD_compressBound(srcBufferSize); |
| 2640 | BYTE* const cBuffer = (BYTE*)malloc (cBufferSize); |
| 2641 | size_t const dstBufferSize = srcBufferSize; |
| 2642 | BYTE* const dstBuffer = (BYTE*)malloc (dstBufferSize); |
| 2643 | U32 result = 0; |
| 2644 | int testNb = 0; |
| 2645 | U32 coreSeed = seed; |
| 2646 | ZSTD_CCtx* zc = ZSTD_createCCtx(); /* will be reset sometimes */ |
| 2647 | ZSTD_DStream* zd = ZSTD_createDStream(); /* will be reset sometimes */ |
| 2648 | ZSTD_DStream* const zd_noise = ZSTD_createDStream(); |
| 2649 | UTIL_time_t const startClock = UTIL_getTime(); |
| 2650 | const BYTE* dict = NULL; /* can keep same dict on 2 consecutive tests */ |
| 2651 | size_t dictSize = 0; |
| 2652 | U32 oldTestLog = 0; |
| 2653 | U32 windowLogMalus = 0; /* can survive between 2 loops */ |
| 2654 | U32 const cLevelMax = bigTests ? (U32)ZSTD_maxCLevel()-1 : g_cLevelMax_smallTests; |
| 2655 | U32 const nbThreadsMax = bigTests ? 4 : 2; |
| 2656 | ZSTD_CCtx_params* cctxParams = ZSTD_createCCtxParams(); |
| 2657 | |
| 2658 | /* allocations */ |
| 2659 | cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize); |
| 2660 | cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize); |
| 2661 | cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize); |
| 2662 | cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize); |
| 2663 | cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize); |
| 2664 | CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] || |
| 2665 | !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd || !zd_noise , |
| 2666 | "Not enough memory, fuzzer tests cancelled"); |
| 2667 | |
| 2668 | /* Create initial samples */ |
| 2669 | RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */ |
| 2670 | RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */ |
| 2671 | RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed); |
| 2672 | RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */ |
| 2673 | RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */ |
| 2674 | memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */ |
| 2675 | CHECK_Z( ZSTD_initDStream_usingDict(zd, NULL, 0) ); /* ensure at least one init */ |
| 2676 | |
| 2677 | /* catch up testNb */ |
| 2678 | for (testNb=1; testNb < startTest; testNb++) |
| 2679 | FUZ_rand(&coreSeed); |
| 2680 | |
| 2681 | /* test loop */ |
| 2682 | for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) { |
| 2683 | U32 lseed; |
| 2684 | int opaqueAPI; |
| 2685 | const BYTE* srcBuffer; |
| 2686 | size_t totalTestSize, totalGenSize, cSize; |
| 2687 | XXH64_state_t xxhState; |
| 2688 | U64 crcOrig; |
| 2689 | U32 resetAllowed = 1; |
| 2690 | size_t maxTestSize; |
| 2691 | ZSTD_parameters savedParams; |
| 2692 | int isRefPrefix = 0; |
| 2693 | U64 pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN; |
| 2694 | |
| 2695 | /* init */ |
| 2696 | if (nbTests >= testNb) { DISPLAYUPDATE(2, "\r%6u/%6u ", testNb, nbTests); } |
| 2697 | else { DISPLAYUPDATE(2, "\r%6u ", testNb); } |
| 2698 | FUZ_rand(&coreSeed); |
| 2699 | lseed = coreSeed ^ prime32; |
| 2700 | DISPLAYLEVEL(5, " *** Test %u *** \n", testNb); |
| 2701 | opaqueAPI = FUZ_rand(&lseed) & 1; |
| 2702 | |
| 2703 | /* states full reset (deliberately not synchronized) */ |
| 2704 | /* some issues can only happen when reusing states */ |
| 2705 | if ((FUZ_rand(&lseed) & 0xFF) == 131) { |
| 2706 | DISPLAYLEVEL(5, "Creating new context \n"); |
| 2707 | ZSTD_freeCCtx(zc); |
| 2708 | zc = ZSTD_createCCtx(); |
| 2709 | CHECK(zc == NULL, "ZSTD_createCCtx allocation error"); |
| 2710 | resetAllowed = 0; |
| 2711 | } |
| 2712 | if ((FUZ_rand(&lseed) & 0xFF) == 132) { |
| 2713 | ZSTD_freeDStream(zd); |
| 2714 | zd = ZSTD_createDStream(); |
| 2715 | CHECK(zd == NULL, "ZSTD_createDStream allocation error"); |
| 2716 | ZSTD_initDStream_usingDict(zd, NULL, 0); /* ensure at least one init */ |
| 2717 | } |
| 2718 | |
| 2719 | /* srcBuffer selection [0-4] */ |
| 2720 | { U32 buffNb = FUZ_rand(&lseed) & 0x7F; |
| 2721 | if (buffNb & 7) buffNb=2; /* most common : compressible (P) */ |
| 2722 | else { |
| 2723 | buffNb >>= 3; |
| 2724 | if (buffNb & 7) { |
| 2725 | const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */ |
| 2726 | buffNb = tnb[buffNb >> 3]; |
| 2727 | } else { |
| 2728 | const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */ |
| 2729 | buffNb = tnb[buffNb >> 3]; |
| 2730 | } } |
| 2731 | srcBuffer = cNoiseBuffer[buffNb]; |
| 2732 | } |
| 2733 | |
| 2734 | /* compression init */ |
| 2735 | CHECK_Z( ZSTD_CCtx_loadDictionary(zc, NULL, 0) ); /* cancel previous dict /*/ |
| 2736 | if ((FUZ_rand(&lseed)&1) /* at beginning, to keep same nb of rand */ |
| 2737 | && oldTestLog /* at least one test happened */ |
| 2738 | && resetAllowed) { |
| 2739 | /* just set a compression level */ |
| 2740 | maxTestSize = FUZ_randomLength(&lseed, oldTestLog+2); |
| 2741 | if (maxTestSize >= srcBufferSize) maxTestSize = srcBufferSize-1; |
| 2742 | { int const compressionLevel = (FUZ_rand(&lseed) % 5) + 1; |
| 2743 | DISPLAYLEVEL(5, "t%u : compression level : %i \n", testNb, compressionLevel); |
| 2744 | CHECK_Z (setCCtxParameter(zc, cctxParams, ZSTD_c_compressionLevel, compressionLevel, opaqueAPI) ); |
| 2745 | } |
| 2746 | } else { |
| 2747 | U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; |
| 2748 | U32 const dictLog = FUZ_rand(&lseed) % maxSrcLog; |
| 2749 | U32 const cLevelCandidate = (FUZ_rand(&lseed) % |
| 2750 | (ZSTD_maxCLevel() - |
| 2751 | (MAX(testLog, dictLog) / 2))) + |
| 2752 | 1; |
| 2753 | int const cLevel = MIN(cLevelCandidate, cLevelMax); |
| 2754 | DISPLAYLEVEL(5, "t%i: base cLevel : %u \n", testNb, cLevel); |
| 2755 | maxTestSize = FUZ_rLogLength(&lseed, testLog); |
| 2756 | DISPLAYLEVEL(5, "t%i: maxTestSize : %u \n", testNb, (unsigned)maxTestSize); |
| 2757 | oldTestLog = testLog; |
| 2758 | /* random dictionary selection */ |
| 2759 | dictSize = ((FUZ_rand(&lseed)&63)==1) ? FUZ_rLogLength(&lseed, dictLog) : 0; |
| 2760 | { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); |
| 2761 | dict = srcBuffer + dictStart; |
| 2762 | if (!dictSize) dict=NULL; |
| 2763 | } |
| 2764 | pledgedSrcSize = (FUZ_rand(&lseed) & 3) ? ZSTD_CONTENTSIZE_UNKNOWN : maxTestSize; |
| 2765 | { ZSTD_compressionParameters cParams = ZSTD_getCParams(cLevel, pledgedSrcSize, dictSize); |
| 2766 | const U32 windowLogMax = bigTests ? 24 : 20; |
| 2767 | const U32 searchLogMax = bigTests ? 15 : 13; |
| 2768 | if (dictSize) |
| 2769 | DISPLAYLEVEL(5, "t%u: with dictionary of size : %zu \n", testNb, dictSize); |
| 2770 | |
| 2771 | /* mess with compression parameters */ |
| 2772 | cParams.windowLog += (FUZ_rand(&lseed) & 3) - 1; |
| 2773 | cParams.windowLog = MIN(windowLogMax, cParams.windowLog); |
| 2774 | cParams.hashLog += (FUZ_rand(&lseed) & 3) - 1; |
| 2775 | cParams.chainLog += (FUZ_rand(&lseed) & 3) - 1; |
| 2776 | cParams.searchLog += (FUZ_rand(&lseed) & 3) - 1; |
| 2777 | cParams.searchLog = MIN(searchLogMax, cParams.searchLog); |
| 2778 | cParams.minMatch += (FUZ_rand(&lseed) & 3) - 1; |
| 2779 | cParams.targetLength = (U32)((cParams.targetLength + 1 ) * (0.5 + ((double)(FUZ_rand(&lseed) & 127) / 128))); |
| 2780 | cParams = ZSTD_adjustCParams(cParams, pledgedSrcSize, dictSize); |
| 2781 | |
| 2782 | if (FUZ_rand(&lseed) & 1) { |
| 2783 | DISPLAYLEVEL(5, "t%u: windowLog : %u \n", testNb, cParams.windowLog); |
| 2784 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_windowLog, cParams.windowLog, opaqueAPI) ); |
| 2785 | assert(cParams.windowLog >= ZSTD_WINDOWLOG_MIN); /* guaranteed by ZSTD_adjustCParams() */ |
| 2786 | windowLogMalus = (cParams.windowLog - ZSTD_WINDOWLOG_MIN) / 5; |
| 2787 | } |
| 2788 | if (FUZ_rand(&lseed) & 1) { |
| 2789 | DISPLAYLEVEL(5, "t%u: hashLog : %u \n", testNb, cParams.hashLog); |
| 2790 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_hashLog, cParams.hashLog, opaqueAPI) ); |
| 2791 | } |
| 2792 | if (FUZ_rand(&lseed) & 1) { |
| 2793 | DISPLAYLEVEL(5, "t%u: chainLog : %u \n", testNb, cParams.chainLog); |
| 2794 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_chainLog, cParams.chainLog, opaqueAPI) ); |
| 2795 | } |
| 2796 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_searchLog, cParams.searchLog, opaqueAPI) ); |
| 2797 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_minMatch, cParams.minMatch, opaqueAPI) ); |
| 2798 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_targetLength, cParams.targetLength, opaqueAPI) ); |
| 2799 | |
| 2800 | /* mess with long distance matching parameters */ |
| 2801 | if (bigTests) { |
| 2802 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_enableLongDistanceMatching, FUZ_randomClampedLength(&lseed, ZSTD_ps_auto, ZSTD_ps_disable), opaqueAPI) ); |
| 2803 | if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_ldmHashLog, FUZ_randomClampedLength(&lseed, ZSTD_HASHLOG_MIN, 23), opaqueAPI) ); |
| 2804 | 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) ); |
| 2805 | 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) ); |
| 2806 | 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) ); |
| 2807 | if (FUZ_rand(&lseed) & 3) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_srcSizeHint, FUZ_randomClampedLength(&lseed, ZSTD_SRCSIZEHINT_MIN, ZSTD_SRCSIZEHINT_MAX), opaqueAPI) ); |
| 2808 | } |
| 2809 | |
| 2810 | /* mess with frame parameters */ |
| 2811 | if (FUZ_rand(&lseed) & 1) { |
| 2812 | int const checksumFlag = FUZ_rand(&lseed) & 1; |
| 2813 | DISPLAYLEVEL(5, "t%u: frame checksum : %u \n", testNb, checksumFlag); |
| 2814 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_checksumFlag, checksumFlag, opaqueAPI) ); |
| 2815 | } |
| 2816 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_dictIDFlag, FUZ_rand(&lseed) & 1, opaqueAPI) ); |
| 2817 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_contentSizeFlag, FUZ_rand(&lseed) & 1, opaqueAPI) ); |
| 2818 | if (FUZ_rand(&lseed) & 1) { |
| 2819 | DISPLAYLEVEL(5, "t%u: pledgedSrcSize : %u \n", testNb, (unsigned)pledgedSrcSize); |
| 2820 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) ); |
| 2821 | } else { |
| 2822 | pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN; |
| 2823 | } |
| 2824 | |
| 2825 | /* multi-threading parameters. Only adjust occasionally for small tests. */ |
| 2826 | if (bigTests || (FUZ_rand(&lseed) & 0xF) == 0xF) { |
| 2827 | U32 const nbThreadsCandidate = (FUZ_rand(&lseed) & 4) + 1; |
| 2828 | U32 const nbThreadsAdjusted = (windowLogMalus < nbThreadsCandidate) ? nbThreadsCandidate - windowLogMalus : 1; |
| 2829 | int const nbThreads = MIN(nbThreadsAdjusted, nbThreadsMax); |
| 2830 | DISPLAYLEVEL(5, "t%i: nbThreads : %u \n", testNb, nbThreads); |
| 2831 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_nbWorkers, nbThreads, opaqueAPI) ); |
| 2832 | if (nbThreads > 1) { |
| 2833 | U32 const jobLog = FUZ_rand(&lseed) % (testLog+1); |
| 2834 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_overlapLog, FUZ_rand(&lseed) % 10, opaqueAPI) ); |
| 2835 | CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_jobSize, (U32)FUZ_rLogLength(&lseed, jobLog), opaqueAPI) ); |
| 2836 | } |
| 2837 | } |
| 2838 | /* Enable rsyncable mode 1 in 4 times. */ |
| 2839 | { |
| 2840 | int const rsyncable = (FUZ_rand(&lseed) % 4 == 0); |
| 2841 | DISPLAYLEVEL(5, "t%u: rsyncable : %d \n", testNb, rsyncable); |
| 2842 | setCCtxParameter(zc, cctxParams, ZSTD_c_rsyncable, rsyncable, opaqueAPI); |
| 2843 | } |
| 2844 | |
| 2845 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_forceMaxWindow, FUZ_rand(&lseed) & 1, opaqueAPI) ); |
| 2846 | if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_c_deterministicRefPrefix, FUZ_rand(&lseed) & 1, opaqueAPI) ); |
| 2847 | |
| 2848 | /* Apply parameters */ |
| 2849 | if (opaqueAPI) { |
| 2850 | DISPLAYLEVEL(5, "t%u: applying CCtxParams \n", testNb); |
| 2851 | CHECK_Z (ZSTD_CCtx_setParametersUsingCCtxParams(zc, cctxParams) ); |
| 2852 | } |
| 2853 | |
| 2854 | if (FUZ_rand(&lseed) & 1) { |
| 2855 | if (FUZ_rand(&lseed) & 1) { |
| 2856 | CHECK_Z( ZSTD_CCtx_loadDictionary(zc, dict, dictSize) ); |
| 2857 | } else { |
| 2858 | CHECK_Z( ZSTD_CCtx_loadDictionary_byReference(zc, dict, dictSize) ); |
| 2859 | } |
| 2860 | } else { |
| 2861 | isRefPrefix = 1; |
| 2862 | CHECK_Z( ZSTD_CCtx_refPrefix(zc, dict, dictSize) ); |
| 2863 | } |
| 2864 | } } |
| 2865 | |
| 2866 | CHECK_Z(getCCtxParams(zc, &savedParams)); |
| 2867 | |
| 2868 | /* multi-segments compression test */ |
| 2869 | { int iter; |
| 2870 | int const startSeed = lseed; |
| 2871 | XXH64_hash_t compressedCrcs[2]; |
| 2872 | for (iter = 0; iter < 2; ++iter, lseed = startSeed) { |
| 2873 | ZSTD_outBuffer outBuff = { cBuffer, cBufferSize, 0 } ; |
| 2874 | int const singlePass = (FUZ_rand(&lseed) & 3) == 0; |
| 2875 | int nbWorkers; |
| 2876 | |
| 2877 | XXH64_reset(&xxhState, 0); |
| 2878 | |
| 2879 | CHECK_Z( ZSTD_CCtx_setPledgedSrcSize(zc, pledgedSrcSize) ); |
| 2880 | if (isRefPrefix) { |
| 2881 | DISPLAYLEVEL(6, "t%u: Reloading prefix\n", testNb); |
| 2882 | /* Need to reload the prefix because it gets dropped after one compression */ |
| 2883 | CHECK_Z( ZSTD_CCtx_refPrefix(zc, dict, dictSize) ); |
| 2884 | } |
| 2885 | |
| 2886 | /* Adjust number of workers occasionally - result must be deterministic independent of nbWorkers */ |
| 2887 | CHECK_Z(ZSTD_CCtx_getParameter(zc, ZSTD_c_nbWorkers, &nbWorkers)); |
| 2888 | if (nbWorkers > 0 && (FUZ_rand(&lseed) & 7) == 0) { |
| 2889 | DISPLAYLEVEL(6, "t%u: Modify nbWorkers: %d -> %d \n", testNb, nbWorkers, nbWorkers + iter); |
| 2890 | CHECK_Z(ZSTD_CCtx_setParameter(zc, ZSTD_c_nbWorkers, nbWorkers + iter)); |
| 2891 | } |
| 2892 | |
| 2893 | if (singlePass) { |
| 2894 | ZSTD_inBuffer inBuff = { srcBuffer, maxTestSize, 0 }; |
| 2895 | CHECK_Z(ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end)); |
| 2896 | DISPLAYLEVEL(6, "t%u: Single pass compression: consumed %u bytes ; produced %u bytes \n", |
| 2897 | testNb, (unsigned)inBuff.pos, (unsigned)outBuff.pos); |
| 2898 | CHECK(inBuff.pos != inBuff.size, "Input not consumed!"); |
| 2899 | crcOrig = XXH64(srcBuffer, maxTestSize, 0); |
| 2900 | totalTestSize = maxTestSize; |
| 2901 | } else { |
| 2902 | outBuff.size = 0; |
| 2903 | for (totalTestSize=0 ; (totalTestSize < maxTestSize) ; ) { |
| 2904 | /* compress random chunks into randomly sized dst buffers */ |
| 2905 | size_t const randomSrcSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2906 | size_t const srcSize = MIN(maxTestSize-totalTestSize, randomSrcSize); |
| 2907 | size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - srcSize); |
| 2908 | ZSTD_EndDirective const flush = (FUZ_rand(&lseed) & 15) ? ZSTD_e_continue : ZSTD_e_flush; |
| 2909 | ZSTD_inBuffer inBuff = { srcBuffer+srcStart, srcSize, 0 }; |
| 2910 | int forwardProgress; |
| 2911 | do { |
| 2912 | size_t const ipos = inBuff.pos; |
| 2913 | size_t const opos = outBuff.pos; |
| 2914 | size_t ret; |
| 2915 | if (outBuff.pos == outBuff.size) { |
| 2916 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1); |
| 2917 | size_t const dstBuffSize = MIN(cBufferSize - outBuff.pos, randomDstSize); |
| 2918 | outBuff.size = outBuff.pos + dstBuffSize; |
| 2919 | } |
| 2920 | CHECK_Z( ret = ZSTD_compressStream2(zc, &outBuff, &inBuff, flush) ); |
| 2921 | DISPLAYLEVEL(6, "t%u: compress consumed %u bytes (total : %u) ; flush: %u (total : %u) \n", |
| 2922 | testNb, (unsigned)inBuff.pos, (unsigned)(totalTestSize + inBuff.pos), (unsigned)flush, (unsigned)outBuff.pos); |
| 2923 | |
| 2924 | /* We've completed the flush */ |
| 2925 | if (flush == ZSTD_e_flush && ret == 0) |
| 2926 | break; |
| 2927 | |
| 2928 | /* Ensure maximal forward progress for determinism */ |
| 2929 | forwardProgress = (inBuff.pos != ipos) || (outBuff.pos != opos); |
| 2930 | } while (forwardProgress); |
| 2931 | assert(inBuff.pos == inBuff.size); |
| 2932 | |
| 2933 | XXH64_update(&xxhState, srcBuffer+srcStart, inBuff.pos); |
| 2934 | memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, inBuff.pos); |
| 2935 | totalTestSize += inBuff.pos; |
| 2936 | } |
| 2937 | |
| 2938 | /* final frame epilogue */ |
| 2939 | { size_t remainingToFlush = 1; |
| 2940 | while (remainingToFlush) { |
| 2941 | ZSTD_inBuffer inBuff = { NULL, 0, 0 }; |
| 2942 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog+1); |
| 2943 | size_t const adjustedDstSize = MIN(cBufferSize - outBuff.pos, randomDstSize); |
| 2944 | outBuff.size = outBuff.pos + adjustedDstSize; |
| 2945 | DISPLAYLEVEL(6, "t%u: End-flush into dst buffer of size %u \n", testNb, (unsigned)adjustedDstSize); |
| 2946 | /* ZSTD_e_end guarantees maximal forward progress */ |
| 2947 | remainingToFlush = ZSTD_compressStream2(zc, &outBuff, &inBuff, ZSTD_e_end); |
| 2948 | DISPLAYLEVEL(6, "t%u: Total flushed so far : %u bytes \n", testNb, (unsigned)outBuff.pos); |
| 2949 | CHECK( ZSTD_isError(remainingToFlush), |
| 2950 | "ZSTD_compressStream2 w/ ZSTD_e_end error : %s", |
| 2951 | ZSTD_getErrorName(remainingToFlush) ); |
| 2952 | } } |
| 2953 | crcOrig = XXH64_digest(&xxhState); |
| 2954 | } |
| 2955 | cSize = outBuff.pos; |
| 2956 | compressedCrcs[iter] = XXH64(cBuffer, cSize, 0); |
| 2957 | DISPLAYLEVEL(5, "Frame completed : %zu bytes \n", cSize); |
| 2958 | } |
| 2959 | CHECK(!(compressedCrcs[0] == compressedCrcs[1]), "Compression is not deterministic!"); |
| 2960 | } |
| 2961 | |
| 2962 | CHECK(badParameters(zc, savedParams), "CCtx params are wrong"); |
| 2963 | |
| 2964 | /* multi - fragments decompression test */ |
| 2965 | if (FUZ_rand(&lseed) & 1) { |
| 2966 | CHECK_Z(ZSTD_DCtx_reset(zd, ZSTD_reset_session_and_parameters)); |
| 2967 | } |
| 2968 | if (!dictSize /* don't reset if dictionary : could be different */ && (FUZ_rand(&lseed) & 1)) { |
| 2969 | DISPLAYLEVEL(5, "resetting DCtx (dict:%p) \n", (void const*)dict); |
| 2970 | CHECK_Z( ZSTD_resetDStream(zd) ); |
| 2971 | } else { |
| 2972 | if (dictSize) |
| 2973 | DISPLAYLEVEL(5, "using dictionary of size %zu \n", dictSize); |
| 2974 | CHECK_Z( ZSTD_initDStream_usingDict(zd, dict, dictSize) ); |
| 2975 | } |
| 2976 | if (FUZ_rand(&lseed) & 1) { |
| 2977 | CHECK_Z(ZSTD_DCtx_setParameter(zd, ZSTD_d_disableHuffmanAssembly, FUZ_rand(&lseed) & 1)); |
| 2978 | } |
| 2979 | { size_t decompressionResult = 1; |
| 2980 | ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; |
| 2981 | ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; |
| 2982 | for (totalGenSize = 0 ; decompressionResult ; ) { |
| 2983 | size_t const readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2984 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 2985 | size_t const dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); |
| 2986 | inBuff.size = inBuff.pos + readCSrcSize; |
| 2987 | outBuff.size = outBuff.pos + dstBuffSize; |
| 2988 | DISPLAYLEVEL(6, "decompression presented %u new bytes (pos:%u/%u)\n", |
| 2989 | (unsigned)readCSrcSize, (unsigned)inBuff.pos, (unsigned)cSize); |
| 2990 | decompressionResult = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 2991 | DISPLAYLEVEL(6, "so far: consumed = %u, produced = %u \n", |
| 2992 | (unsigned)inBuff.pos, (unsigned)outBuff.pos); |
| 2993 | if (ZSTD_isError(decompressionResult)) { |
| 2994 | DISPLAY("ZSTD_decompressStream error : %s \n", ZSTD_getErrorName(decompressionResult)); |
| 2995 | findDiff(copyBuffer, dstBuffer, totalTestSize); |
| 2996 | } |
| 2997 | CHECK (ZSTD_isError(decompressionResult), "decompression error : %s", ZSTD_getErrorName(decompressionResult)); |
| 2998 | CHECK (inBuff.pos > cSize, "ZSTD_decompressStream consumes too much input : %u > %u ", (unsigned)inBuff.pos, (unsigned)cSize); |
| 2999 | } |
| 3000 | CHECK (inBuff.pos != cSize, "compressed data should be fully read (%u != %u)", (unsigned)inBuff.pos, (unsigned)cSize); |
| 3001 | CHECK (outBuff.pos != totalTestSize, "decompressed data : wrong size (%u != %u)", (unsigned)outBuff.pos, (unsigned)totalTestSize); |
| 3002 | { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); |
| 3003 | if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize); |
| 3004 | CHECK (crcDest!=crcOrig, "decompressed data corrupted"); |
| 3005 | } } |
| 3006 | |
| 3007 | /*===== noisy/erroneous src decompression test =====*/ |
| 3008 | |
| 3009 | /* add some noise */ |
| 3010 | { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2; |
| 3011 | U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) { |
| 3012 | size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 3013 | size_t const noiseSize = MIN((cSize/3) , randomNoiseSize); |
| 3014 | size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize); |
| 3015 | size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize); |
| 3016 | memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize); |
| 3017 | } } |
| 3018 | |
| 3019 | /* try decompression on noisy data */ |
| 3020 | if (FUZ_rand(&lseed) & 1) { |
| 3021 | CHECK_Z(ZSTD_DCtx_reset(zd_noise, ZSTD_reset_session_and_parameters)); |
| 3022 | } else { |
| 3023 | CHECK_Z(ZSTD_DCtx_reset(zd_noise, ZSTD_reset_session_only)); |
| 3024 | } |
| 3025 | if (FUZ_rand(&lseed) & 1) { |
| 3026 | CHECK_Z(ZSTD_DCtx_setParameter(zd_noise, ZSTD_d_disableHuffmanAssembly, FUZ_rand(&lseed) & 1)); |
| 3027 | } |
| 3028 | { ZSTD_inBuffer inBuff = { cBuffer, cSize, 0 }; |
| 3029 | ZSTD_outBuffer outBuff= { dstBuffer, dstBufferSize, 0 }; |
| 3030 | while (outBuff.pos < dstBufferSize) { |
| 3031 | size_t const randomCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 3032 | size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); |
| 3033 | size_t const adjustedDstSize = MIN(dstBufferSize - outBuff.pos, randomDstSize); |
| 3034 | size_t const adjustedCSrcSize = MIN(cSize - inBuff.pos, randomCSrcSize); |
| 3035 | outBuff.size = outBuff.pos + adjustedDstSize; |
| 3036 | inBuff.size = inBuff.pos + adjustedCSrcSize; |
| 3037 | { size_t const decompressError = ZSTD_decompressStream(zd, &outBuff, &inBuff); |
| 3038 | if (ZSTD_isError(decompressError)) break; /* error correctly detected */ |
| 3039 | /* Good so far, but no more progress possible */ |
| 3040 | if (outBuff.pos < outBuff.size && inBuff.pos == cSize) break; |
| 3041 | } } } } |
| 3042 | DISPLAY("\r%u fuzzer tests completed \n", testNb-1); |
| 3043 | |
| 3044 | _cleanup: |
| 3045 | ZSTD_freeCCtx(zc); |
| 3046 | ZSTD_freeDStream(zd); |
| 3047 | ZSTD_freeDStream(zd_noise); |
| 3048 | ZSTD_freeCCtxParams(cctxParams); |
| 3049 | free(cNoiseBuffer[0]); |
| 3050 | free(cNoiseBuffer[1]); |
| 3051 | free(cNoiseBuffer[2]); |
| 3052 | free(cNoiseBuffer[3]); |
| 3053 | free(cNoiseBuffer[4]); |
| 3054 | free(copyBuffer); |
| 3055 | free(cBuffer); |
| 3056 | free(dstBuffer); |
| 3057 | return result; |
| 3058 | |
| 3059 | _output_error: |
| 3060 | result = 1; |
| 3061 | goto _cleanup; |
| 3062 | } |
| 3063 | |
| 3064 | /*-******************************************************* |
| 3065 | * Command line |
| 3066 | *********************************************************/ |
| 3067 | static int FUZ_usage(const char* programName) |
| 3068 | { |
| 3069 | DISPLAY( "Usage :\n"); |
| 3070 | DISPLAY( " %s [args]\n", programName); |
| 3071 | DISPLAY( "\n"); |
| 3072 | DISPLAY( "Arguments :\n"); |
| 3073 | DISPLAY( " -i# : Number of tests (default:%u)\n", nbTestsDefault); |
| 3074 | DISPLAY( " -T# : Max duration to run for. Overrides number of tests. (e.g. -T1m or -T60s for one minute)\n"); |
| 3075 | DISPLAY( " -s# : Select seed (default:prompt user)\n"); |
| 3076 | DISPLAY( " -t# : Select starting test number (default:0)\n"); |
| 3077 | DISPLAY( " -P# : Select compressibility in %% (default:%i%%)\n", FUZ_COMPRESSIBILITY_DEFAULT); |
| 3078 | DISPLAY( " -v : verbose\n"); |
| 3079 | DISPLAY( " -p : pause at the end\n"); |
| 3080 | DISPLAY( " -h : display help and exit\n"); |
| 3081 | return 0; |
| 3082 | } |
| 3083 | |
| 3084 | typedef enum { simple_api, advanced_api } e_api; |
| 3085 | |
| 3086 | int main(int argc, const char** argv) |
| 3087 | { |
| 3088 | U32 seed = 0; |
| 3089 | int seedset = 0; |
| 3090 | int nbTests = nbTestsDefault; |
| 3091 | int testNb = 0; |
| 3092 | int proba = FUZ_COMPRESSIBILITY_DEFAULT; |
| 3093 | int result = 0; |
| 3094 | int mainPause = 0; |
| 3095 | int bigTests = (sizeof(size_t) == 8); |
| 3096 | e_api selected_api = simple_api; |
| 3097 | const char* const programName = argv[0]; |
| 3098 | int argNb; |
| 3099 | |
| 3100 | /* Check command line */ |
| 3101 | for(argNb=1; argNb<argc; argNb++) { |
| 3102 | const char* argument = argv[argNb]; |
| 3103 | assert(argument != NULL); |
| 3104 | |
| 3105 | /* Parsing commands. Aggregated commands are allowed */ |
| 3106 | if (argument[0]=='-') { |
| 3107 | |
| 3108 | if (!strcmp(argument, "--newapi")) { selected_api=advanced_api; testNb += !testNb; continue; } |
| 3109 | if (!strcmp(argument, "--no-big-tests")) { bigTests=0; continue; } |
| 3110 | if (!strcmp(argument, "--big-tests")) { bigTests=1; continue; } |
| 3111 | |
| 3112 | argument++; |
| 3113 | while (*argument!=0) { |
| 3114 | switch(*argument) |
| 3115 | { |
| 3116 | case 'h': |
| 3117 | return FUZ_usage(programName); |
| 3118 | |
| 3119 | case 'v': |
| 3120 | argument++; |
| 3121 | g_displayLevel++; |
| 3122 | break; |
| 3123 | |
| 3124 | case 'q': |
| 3125 | argument++; |
| 3126 | g_displayLevel--; |
| 3127 | break; |
| 3128 | |
| 3129 | case 'p': /* pause at the end */ |
| 3130 | argument++; |
| 3131 | mainPause = 1; |
| 3132 | break; |
| 3133 | |
| 3134 | case 'i': /* limit tests by nb of iterations (default) */ |
| 3135 | argument++; |
| 3136 | nbTests=0; g_clockTime=0; |
| 3137 | while ((*argument>='0') && (*argument<='9')) { |
| 3138 | nbTests *= 10; |
| 3139 | nbTests += *argument - '0'; |
| 3140 | argument++; |
| 3141 | } |
| 3142 | break; |
| 3143 | |
| 3144 | case 'T': /* limit tests by time */ |
| 3145 | argument++; |
| 3146 | nbTests=0; g_clockTime=0; |
| 3147 | while ((*argument>='0') && (*argument<='9')) { |
| 3148 | g_clockTime *= 10; |
| 3149 | g_clockTime += *argument - '0'; |
| 3150 | argument++; |
| 3151 | } |
| 3152 | if (*argument=='m') { /* -T1m == -T60 */ |
| 3153 | g_clockTime *=60, argument++; |
| 3154 | if (*argument=='n') argument++; /* -T1mn == -T60 */ |
| 3155 | } else if (*argument=='s') argument++; /* -T10s == -T10 */ |
| 3156 | g_clockTime *= SEC_TO_MICRO; |
| 3157 | break; |
| 3158 | |
| 3159 | case 's': /* manually select seed */ |
| 3160 | argument++; |
| 3161 | seedset=1; |
| 3162 | seed=0; |
| 3163 | while ((*argument>='0') && (*argument<='9')) { |
| 3164 | seed *= 10; |
| 3165 | seed += *argument - '0'; |
| 3166 | argument++; |
| 3167 | } |
| 3168 | break; |
| 3169 | |
| 3170 | case 't': /* select starting test number */ |
| 3171 | argument++; |
| 3172 | testNb=0; |
| 3173 | while ((*argument>='0') && (*argument<='9')) { |
| 3174 | testNb *= 10; |
| 3175 | testNb += *argument - '0'; |
| 3176 | argument++; |
| 3177 | } |
| 3178 | break; |
| 3179 | |
| 3180 | case 'P': /* compressibility % */ |
| 3181 | argument++; |
| 3182 | proba=0; |
| 3183 | while ((*argument>='0') && (*argument<='9')) { |
| 3184 | proba *= 10; |
| 3185 | proba += *argument - '0'; |
| 3186 | argument++; |
| 3187 | } |
| 3188 | if (proba<0) proba=0; |
| 3189 | if (proba>100) proba=100; |
| 3190 | break; |
| 3191 | |
| 3192 | default: |
| 3193 | return FUZ_usage(programName); |
| 3194 | } |
| 3195 | } } } /* for(argNb=1; argNb<argc; argNb++) */ |
| 3196 | |
| 3197 | /* Get Seed */ |
| 3198 | DISPLAY("Starting zstream tester (%i-bits, %s)\n", (int)(sizeof(size_t)*8), ZSTD_VERSION_STRING); |
| 3199 | |
| 3200 | if (!seedset) { |
| 3201 | time_t const t = time(NULL); |
| 3202 | U32 const h = XXH32(&t, sizeof(t), 1); |
| 3203 | seed = h % 10000; |
| 3204 | } |
| 3205 | |
| 3206 | DISPLAY("Seed = %u\n", (unsigned)seed); |
| 3207 | if (proba!=FUZ_COMPRESSIBILITY_DEFAULT) DISPLAY("Compressibility : %i%%\n", proba); |
| 3208 | |
| 3209 | if (nbTests<=0) nbTests=1; |
| 3210 | |
| 3211 | if (testNb==0) { |
| 3212 | result = basicUnitTests(0, ((double)proba) / 100, bigTests); /* constant seed for predictability */ |
| 3213 | } |
| 3214 | |
| 3215 | if (!result) { |
| 3216 | switch(selected_api) |
| 3217 | { |
| 3218 | case simple_api : |
| 3219 | result = fuzzerTests(seed, nbTests, testNb, ((double)proba) / 100, bigTests); |
| 3220 | break; |
| 3221 | case advanced_api : |
| 3222 | result = fuzzerTests_newAPI(seed, nbTests, testNb, ((double)proba) / 100, bigTests); |
| 3223 | break; |
| 3224 | default : |
| 3225 | assert(0); /* impossible */ |
| 3226 | } |
| 3227 | } |
| 3228 | |
| 3229 | if (mainPause) { |
| 3230 | int unused; |
| 3231 | DISPLAY("Press Enter \n"); |
| 3232 | unused = getchar(); |
| 3233 | (void)unused; |
| 3234 | } |
| 3235 | return result; |
| 3236 | } |