648db22b |
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 | } |