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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/zstd/tests/zbufftest.c | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/zstd/tests/zbufftest.c')
-rw-r--r-- | src/zstd/tests/zbufftest.c | 625 |
1 files changed, 625 insertions, 0 deletions
diff --git a/src/zstd/tests/zbufftest.c b/src/zstd/tests/zbufftest.c new file mode 100644 index 000000000..cd3706af4 --- /dev/null +++ b/src/zstd/tests/zbufftest.c @@ -0,0 +1,625 @@ +/* + * Copyright (c) 2015-2020, Yann Collet, Facebook, Inc. + * All rights reserved. + * + * This source code is licensed under both the BSD-style license (found in the + * LICENSE file in the root directory of this source tree) and the GPLv2 (found + * in the COPYING file in the root directory of this source tree). + * You may select, at your option, one of the above-listed licenses. + */ + + +/*-************************************ +* Compiler specific +**************************************/ +#ifdef _MSC_VER /* Visual Studio */ +# define _CRT_SECURE_NO_WARNINGS /* fgets */ +# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ +# pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */ +#endif + + +/*-************************************ +* Includes +**************************************/ +#include <stdlib.h> /* free */ +#include <stdio.h> /* fgets, sscanf */ +#include <string.h> /* strcmp */ +#include "timefn.h" /* UTIL_time_t */ +#include "mem.h" +#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel */ +#include "zstd.h" /* ZSTD_compressBound */ +#define ZBUFF_STATIC_LINKING_ONLY /* ZBUFF_createCCtx_advanced */ +#include "zbuff.h" /* ZBUFF_isError */ +#include "datagen.h" /* RDG_genBuffer */ +#define XXH_STATIC_LINKING_ONLY +#include "xxhash.h" /* XXH64_* */ +#include "util.h" +#include "assert.h" + + +/*-************************************ +* Constants +**************************************/ +#define KB *(1U<<10) +#define MB *(1U<<20) +#define GB *(1U<<30) + +static const U32 nbTestsDefault = 10000; +#define COMPRESSIBLE_NOISE_LENGTH (10 MB) +#define FUZ_COMPRESSIBILITY_DEFAULT 50 +static const U32 prime1 = 2654435761U; +static const U32 prime2 = 2246822519U; + + + +/*-************************************ +* Display Macros +**************************************/ +#define DISPLAY(...) fprintf(stderr, __VA_ARGS__) +#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } +static U32 g_displayLevel = 2; + +static const U64 g_refreshRate = SEC_TO_MICRO / 6; +static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER; + +#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \ + if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (g_displayLevel>=4)) \ + { g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \ + if (g_displayLevel>=4) fflush(stderr); } } + +static U64 g_clockTime = 0; + + +/*-******************************************************* +* Fuzzer functions +*********************************************************/ +#undef MIN +#undef MAX +#define MIN(a,b) ((a)<(b)?(a):(b)) +#define MAX(a,b) ((a)>(b)?(a):(b)) +/*! FUZ_rand() : + @return : a 27 bits random value, from a 32-bits `seed`. + `seed` is also modified */ +# define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r))) +static unsigned int FUZ_rand(unsigned int* seedPtr) +{ + U32 rand32 = *seedPtr; + rand32 *= prime1; + rand32 += prime2; + rand32 = FUZ_rotl32(rand32, 13); + *seedPtr = rand32; + return rand32 >> 5; +} + + +/* +static unsigned FUZ_highbit32(U32 v32) +{ + unsigned nbBits = 0; + if (v32==0) return 0; + for ( ; v32 ; v32>>=1) nbBits++; + return nbBits; +} +*/ + +static void* ZBUFF_allocFunction(void* opaque, size_t size) +{ + void* address = malloc(size); + (void)opaque; + /* DISPLAYLEVEL(4, "alloc %p, %d opaque=%p \n", address, (int)size, opaque); */ + return address; +} + +static void ZBUFF_freeFunction(void* opaque, void* address) +{ + (void)opaque; + /* if (address) DISPLAYLEVEL(4, "free %p opaque=%p \n", address, opaque); */ + free(address); +} + +static int basicUnitTests(U32 seed, double compressibility, ZSTD_customMem customMem) +{ + int testResult = 0; + size_t CNBufferSize = COMPRESSIBLE_NOISE_LENGTH; + void* CNBuffer = malloc(CNBufferSize); + size_t const skippableFrameSize = 11; + size_t const compressedBufferSize = (8 + skippableFrameSize) + ZSTD_compressBound(COMPRESSIBLE_NOISE_LENGTH); + void* compressedBuffer = malloc(compressedBufferSize); + size_t const decodedBufferSize = CNBufferSize; + void* decodedBuffer = malloc(decodedBufferSize); + size_t cSize, readSize, readSkipSize, genSize; + U32 testNb=0; + ZBUFF_CCtx* zc = ZBUFF_createCCtx_advanced(customMem); + ZBUFF_DCtx* zd = ZBUFF_createDCtx_advanced(customMem); + + /* Create compressible test buffer */ + if (!CNBuffer || !compressedBuffer || !decodedBuffer || !zc || !zd) { + DISPLAY("Not enough memory, aborting\n"); + goto _output_error; + } + RDG_genBuffer(CNBuffer, CNBufferSize, compressibility, 0., seed); + + /* generate skippable frame */ + MEM_writeLE32(compressedBuffer, ZSTD_MAGIC_SKIPPABLE_START); + MEM_writeLE32(((char*)compressedBuffer)+4, (U32)skippableFrameSize); + cSize = skippableFrameSize + 8; + + /* Basic compression test */ + DISPLAYLEVEL(4, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); + ZBUFF_compressInitDictionary(zc, CNBuffer, 128 KB, 1); + readSize = CNBufferSize; + genSize = compressedBufferSize; + { size_t const r = ZBUFF_compressContinue(zc, ((char*)compressedBuffer)+cSize, &genSize, CNBuffer, &readSize); + if (ZBUFF_isError(r)) goto _output_error; } + if (readSize != CNBufferSize) goto _output_error; /* entire input should be consumed */ + cSize += genSize; + genSize = compressedBufferSize - cSize; + { size_t const r = ZBUFF_compressEnd(zc, ((char*)compressedBuffer)+cSize, &genSize); + if (r != 0) goto _output_error; } /* error, or some data not flushed */ + cSize += genSize; + DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/COMPRESSIBLE_NOISE_LENGTH*100); + + /* skippable frame test */ + DISPLAYLEVEL(4, "test%3i : decompress skippable frame : ", testNb++); + ZBUFF_decompressInitDictionary(zd, CNBuffer, 128 KB); + readSkipSize = cSize; + genSize = CNBufferSize; + { size_t const r = ZBUFF_decompressContinue(zd, decodedBuffer, &genSize, compressedBuffer, &readSkipSize); + if (r != 0) goto _output_error; } + if (genSize != 0) goto _output_error; /* skippable frame len is 0 */ + DISPLAYLEVEL(4, "OK \n"); + + /* Basic decompression test */ + DISPLAYLEVEL(4, "test%3i : decompress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH); + ZBUFF_decompressInitDictionary(zd, CNBuffer, 128 KB); + readSize = cSize - readSkipSize; + genSize = CNBufferSize; + { size_t const r = ZBUFF_decompressContinue(zd, decodedBuffer, &genSize, ((char*)compressedBuffer)+readSkipSize, &readSize); + if (r != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */ + if (genSize != CNBufferSize) goto _output_error; /* should regenerate the same amount */ + if (readSize+readSkipSize != cSize) goto _output_error; /* should have read the entire frame */ + DISPLAYLEVEL(4, "OK \n"); + + DISPLAYLEVEL(4, "test%3i : ZBUFF_recommendedCInSize : ", testNb++); { assert(ZBUFF_recommendedCInSize() != 0); } DISPLAYLEVEL(4, "OK \n"); + DISPLAYLEVEL(4, "test%3i : ZBUFF_recommendedCOutSize : ", testNb++); { assert(ZBUFF_recommendedCOutSize() != 0); } DISPLAYLEVEL(4, "OK \n"); + DISPLAYLEVEL(4, "test%3i : ZBUFF_recommendedDInSize : ", testNb++); { assert(ZBUFF_recommendedDInSize() != 0); } DISPLAYLEVEL(4, "OK \n"); + DISPLAYLEVEL(4, "test%3i : ZBUFF_recommendedDOutSize : ", testNb++); { assert(ZBUFF_recommendedDOutSize() != 0); } DISPLAYLEVEL(4, "OK \n"); + + /* check regenerated data is byte exact */ + DISPLAYLEVEL(4, "test%3i : check decompressed result : ", testNb++); + { size_t i; + for (i=0; i<CNBufferSize; i++) { + if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error; + } } + DISPLAYLEVEL(4, "OK \n"); + + /* Byte-by-byte decompression test */ + DISPLAYLEVEL(4, "test%3i : decompress byte-by-byte : ", testNb++); + { size_t r, pIn=0, pOut=0; + do + { ZBUFF_decompressInitDictionary(zd, CNBuffer, 128 KB); + r = 1; + while (r) { + size_t inS = 1; + size_t outS = 1; + r = ZBUFF_decompressContinue(zd, ((BYTE*)decodedBuffer)+pOut, &outS, ((BYTE*)compressedBuffer)+pIn, &inS); + pIn += inS; + pOut += outS; + } + readSize = pIn; + genSize = pOut; + } while (genSize==0); + } + if (genSize != CNBufferSize) goto _output_error; /* should regenerate the same amount */ + if (readSize != cSize) goto _output_error; /* should have read the entire frame */ + DISPLAYLEVEL(4, "OK \n"); + + /* check regenerated data is byte exact */ + DISPLAYLEVEL(4, "test%3i : check decompressed result : ", testNb++); + { size_t i; + for (i=0; i<CNBufferSize; i++) { + if (((BYTE*)decodedBuffer)[i] != ((BYTE*)CNBuffer)[i]) goto _output_error; + } } + DISPLAYLEVEL(4, "OK \n"); + +_end: + ZBUFF_freeCCtx(zc); + ZBUFF_freeDCtx(zd); + free(CNBuffer); + free(compressedBuffer); + free(decodedBuffer); + return testResult; + +_output_error: + testResult = 1; + DISPLAY("Error detected in Unit tests ! \n"); + goto _end; +} + + +static size_t findDiff(const void* buf1, const void* buf2, size_t max) +{ + const BYTE* b1 = (const BYTE*)buf1; + const BYTE* b2 = (const BYTE*)buf2; + size_t u; + for (u=0; u<max; u++) { + if (b1[u] != b2[u]) break; + } + return u; +} + +static size_t FUZ_rLogLength(U32* seed, U32 logLength) +{ + size_t const lengthMask = ((size_t)1 << logLength) - 1; + return (lengthMask+1) + (FUZ_rand(seed) & lengthMask); +} + +static size_t FUZ_randomLength(U32* seed, U32 maxLog) +{ + U32 const logLength = FUZ_rand(seed) % maxLog; + return FUZ_rLogLength(seed, logLength); +} + +#define CHECK(cond, ...) if (cond) { DISPLAY("Error => "); DISPLAY(__VA_ARGS__); \ + DISPLAY(" (seed %u, test nb %u) \n", seed, testNb); goto _output_error; } + +static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compressibility) +{ + static const U32 maxSrcLog = 24; + static const U32 maxSampleLog = 19; + BYTE* cNoiseBuffer[5]; + size_t const srcBufferSize = (size_t)1<<maxSrcLog; + BYTE* copyBuffer; + size_t const copyBufferSize= srcBufferSize + (1<<maxSampleLog); + BYTE* cBuffer; + size_t const cBufferSize = ZSTD_compressBound(srcBufferSize); + BYTE* dstBuffer; + size_t dstBufferSize = srcBufferSize; + U32 result = 0; + U32 testNb = 0; + U32 coreSeed = seed; + ZBUFF_CCtx* zc; + ZBUFF_DCtx* zd; + UTIL_time_t startClock = UTIL_getTime(); + + /* allocations */ + zc = ZBUFF_createCCtx(); + zd = ZBUFF_createDCtx(); + cNoiseBuffer[0] = (BYTE*)malloc (srcBufferSize); + cNoiseBuffer[1] = (BYTE*)malloc (srcBufferSize); + cNoiseBuffer[2] = (BYTE*)malloc (srcBufferSize); + cNoiseBuffer[3] = (BYTE*)malloc (srcBufferSize); + cNoiseBuffer[4] = (BYTE*)malloc (srcBufferSize); + copyBuffer= (BYTE*)malloc (copyBufferSize); + dstBuffer = (BYTE*)malloc (dstBufferSize); + cBuffer = (BYTE*)malloc (cBufferSize); + CHECK (!cNoiseBuffer[0] || !cNoiseBuffer[1] || !cNoiseBuffer[2] || !cNoiseBuffer[3] || !cNoiseBuffer[4] || + !copyBuffer || !dstBuffer || !cBuffer || !zc || !zd, + "Not enough memory, fuzzer tests cancelled"); + + /* Create initial samples */ + RDG_genBuffer(cNoiseBuffer[0], srcBufferSize, 0.00, 0., coreSeed); /* pure noise */ + RDG_genBuffer(cNoiseBuffer[1], srcBufferSize, 0.05, 0., coreSeed); /* barely compressible */ + RDG_genBuffer(cNoiseBuffer[2], srcBufferSize, compressibility, 0., coreSeed); + RDG_genBuffer(cNoiseBuffer[3], srcBufferSize, 0.95, 0., coreSeed); /* highly compressible */ + RDG_genBuffer(cNoiseBuffer[4], srcBufferSize, 1.00, 0., coreSeed); /* sparse content */ + memset(copyBuffer, 0x65, copyBufferSize); /* make copyBuffer considered initialized */ + + /* catch up testNb */ + for (testNb=1; testNb < startTest; testNb++) + FUZ_rand(&coreSeed); + + /* test loop */ + for ( ; (testNb <= nbTests) || (UTIL_clockSpanMicro(startClock) < g_clockTime) ; testNb++ ) { + U32 lseed; + const BYTE* srcBuffer; + const BYTE* dict; + size_t maxTestSize, dictSize; + size_t cSize, totalTestSize, totalCSize, totalGenSize; + size_t errorCode; + U32 n, nbChunks; + XXH64_state_t xxhState; + U64 crcOrig; + + /* init */ + DISPLAYUPDATE(2, "\r%6u", testNb); + if (nbTests >= testNb) DISPLAYUPDATE(2, "/%6u ", nbTests); + FUZ_rand(&coreSeed); + lseed = coreSeed ^ prime1; + + /* states full reset (unsynchronized) */ + /* some issues only happen when reusing states in a specific sequence of parameters */ + if ((FUZ_rand(&lseed) & 0xFF) == 131) { ZBUFF_freeCCtx(zc); zc = ZBUFF_createCCtx(); } + if ((FUZ_rand(&lseed) & 0xFF) == 132) { ZBUFF_freeDCtx(zd); zd = ZBUFF_createDCtx(); } + + /* srcBuffer selection [0-4] */ + { U32 buffNb = FUZ_rand(&lseed) & 0x7F; + if (buffNb & 7) buffNb=2; /* most common : compressible (P) */ + else { + buffNb >>= 3; + if (buffNb & 7) { + const U32 tnb[2] = { 1, 3 }; /* barely/highly compressible */ + buffNb = tnb[buffNb >> 3]; + } else { + const U32 tnb[2] = { 0, 4 }; /* not compressible / sparse */ + buffNb = tnb[buffNb >> 3]; + } } + srcBuffer = cNoiseBuffer[buffNb]; + } + + /* compression init */ + { U32 const testLog = FUZ_rand(&lseed) % maxSrcLog; + U32 const cLevel = (FUZ_rand(&lseed) % (ZSTD_maxCLevel() - (testLog/3))) + 1; + maxTestSize = FUZ_rLogLength(&lseed, testLog); + dictSize = (FUZ_rand(&lseed)==1) ? FUZ_randomLength(&lseed, maxSampleLog) : 0; + /* random dictionary selection */ + { size_t const dictStart = FUZ_rand(&lseed) % (srcBufferSize - dictSize); + dict = srcBuffer + dictStart; + } + { ZSTD_parameters params = ZSTD_getParams(cLevel, 0, dictSize); + params.fParams.checksumFlag = FUZ_rand(&lseed) & 1; + params.fParams.noDictIDFlag = FUZ_rand(&lseed) & 1; + { size_t const initError = ZBUFF_compressInit_advanced(zc, dict, dictSize, params, ZSTD_CONTENTSIZE_UNKNOWN); + CHECK (ZBUFF_isError(initError),"init error : %s", ZBUFF_getErrorName(initError)); + } } } + + /* multi-segments compression test */ + XXH64_reset(&xxhState, 0); + nbChunks = (FUZ_rand(&lseed) & 127) + 2; + for (n=0, cSize=0, totalTestSize=0 ; (n<nbChunks) && (totalTestSize < maxTestSize) ; n++) { + /* compress random chunk into random size dst buffer */ + { size_t readChunkSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); + size_t const srcStart = FUZ_rand(&lseed) % (srcBufferSize - readChunkSize); + + size_t const compressionError = ZBUFF_compressContinue(zc, cBuffer+cSize, &dstBuffSize, srcBuffer+srcStart, &readChunkSize); + CHECK (ZBUFF_isError(compressionError), "compression error : %s", ZBUFF_getErrorName(compressionError)); + + XXH64_update(&xxhState, srcBuffer+srcStart, readChunkSize); + memcpy(copyBuffer+totalTestSize, srcBuffer+srcStart, readChunkSize); + cSize += dstBuffSize; + totalTestSize += readChunkSize; + } + + /* random flush operation, to mess around */ + if ((FUZ_rand(&lseed) & 15) == 0) { + size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); + size_t const flushError = ZBUFF_compressFlush(zc, cBuffer+cSize, &dstBuffSize); + CHECK (ZBUFF_isError(flushError), "flush error : %s", ZBUFF_getErrorName(flushError)); + cSize += dstBuffSize; + } } + + /* final frame epilogue */ + { size_t remainingToFlush = (size_t)(-1); + while (remainingToFlush) { + size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); + U32 const enoughDstSize = dstBuffSize >= remainingToFlush; + remainingToFlush = ZBUFF_compressEnd(zc, cBuffer+cSize, &dstBuffSize); + CHECK (ZBUFF_isError(remainingToFlush), "flush error : %s", ZBUFF_getErrorName(remainingToFlush)); + CHECK (enoughDstSize && remainingToFlush, "ZBUFF_compressEnd() not fully flushed (%u remaining), but enough space available", (U32)remainingToFlush); + cSize += dstBuffSize; + } } + crcOrig = XXH64_digest(&xxhState); + + /* multi - fragments decompression test */ + ZBUFF_decompressInitDictionary(zd, dict, dictSize); + errorCode = 1; + for (totalCSize = 0, totalGenSize = 0 ; errorCode ; ) { + size_t readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); + errorCode = ZBUFF_decompressContinue(zd, dstBuffer+totalGenSize, &dstBuffSize, cBuffer+totalCSize, &readCSrcSize); + CHECK (ZBUFF_isError(errorCode), "decompression error : %s", ZBUFF_getErrorName(errorCode)); + totalGenSize += dstBuffSize; + totalCSize += readCSrcSize; + } + CHECK (errorCode != 0, "frame not fully decoded"); + CHECK (totalGenSize != totalTestSize, "decompressed data : wrong size") + CHECK (totalCSize != cSize, "compressed data should be fully read") + { U64 const crcDest = XXH64(dstBuffer, totalTestSize, 0); + if (crcDest!=crcOrig) findDiff(copyBuffer, dstBuffer, totalTestSize); + CHECK (crcDest!=crcOrig, "decompressed data corrupted"); } + + /*===== noisy/erroneous src decompression test =====*/ + + /* add some noise */ + { U32 const nbNoiseChunks = (FUZ_rand(&lseed) & 7) + 2; + U32 nn; for (nn=0; nn<nbNoiseChunks; nn++) { + size_t const randomNoiseSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t const noiseSize = MIN((cSize/3) , randomNoiseSize); + size_t const noiseStart = FUZ_rand(&lseed) % (srcBufferSize - noiseSize); + size_t const cStart = FUZ_rand(&lseed) % (cSize - noiseSize); + memcpy(cBuffer+cStart, srcBuffer+noiseStart, noiseSize); + } } + + /* try decompression on noisy data */ + ZBUFF_decompressInit(zd); + totalCSize = 0; + totalGenSize = 0; + while ( (totalCSize < cSize) && (totalGenSize < dstBufferSize) ) { + size_t readCSrcSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); + size_t dstBuffSize = MIN(dstBufferSize - totalGenSize, randomDstSize); + size_t const decompressError = ZBUFF_decompressContinue(zd, dstBuffer+totalGenSize, &dstBuffSize, cBuffer+totalCSize, &readCSrcSize); + if (ZBUFF_isError(decompressError)) break; /* error correctly detected */ + totalGenSize += dstBuffSize; + totalCSize += readCSrcSize; + } } + DISPLAY("\r%u fuzzer tests completed \n", testNb); + +_cleanup: + ZBUFF_freeCCtx(zc); + ZBUFF_freeDCtx(zd); + free(cNoiseBuffer[0]); + free(cNoiseBuffer[1]); + free(cNoiseBuffer[2]); + free(cNoiseBuffer[3]); + free(cNoiseBuffer[4]); + free(copyBuffer); + free(cBuffer); + free(dstBuffer); + return result; + +_output_error: + result = 1; + goto _cleanup; +} + + +/*-******************************************************* +* Command line +*********************************************************/ +static int FUZ_usage(const char* programName) +{ + DISPLAY( "Usage :\n"); + DISPLAY( " %s [args]\n", programName); + DISPLAY( "\n"); + DISPLAY( "Arguments :\n"); + DISPLAY( " -i# : Nb of tests (default:%u) \n", nbTestsDefault); + DISPLAY( " -s# : Select seed (default:prompt user)\n"); + DISPLAY( " -t# : Select starting test number (default:0)\n"); + DISPLAY( " -P# : Select compressibility in %% (default:%i%%)\n", FUZ_COMPRESSIBILITY_DEFAULT); + DISPLAY( " -v : verbose\n"); + DISPLAY( " -p : pause at the end\n"); + DISPLAY( " -h : display help and exit\n"); + return 0; +} + + +int main(int argc, const char** argv) +{ + U32 seed=0; + int seedset=0; + int argNb; + int nbTests = nbTestsDefault; + int testNb = 0; + int proba = FUZ_COMPRESSIBILITY_DEFAULT; + int result=0; + U32 mainPause = 0; + const char* programName = argv[0]; + ZSTD_customMem customMem = { ZBUFF_allocFunction, ZBUFF_freeFunction, NULL }; + ZSTD_customMem customNULL = { NULL, NULL, NULL }; + + /* Check command line */ + for(argNb=1; argNb<argc; argNb++) { + const char* argument = argv[argNb]; + if(!argument) continue; /* Protection if argument empty */ + + /* Parsing commands. Aggregated commands are allowed */ + if (argument[0]=='-') { + argument++; + + while (*argument!=0) { + switch(*argument) + { + case 'h': + return FUZ_usage(programName); + case 'v': + argument++; + g_displayLevel=4; + break; + case 'q': + argument++; + g_displayLevel--; + break; + case 'p': /* pause at the end */ + argument++; + mainPause = 1; + break; + + case 'i': + argument++; + nbTests=0; g_clockTime=0; + while ((*argument>='0') && (*argument<='9')) { + nbTests *= 10; + nbTests += *argument - '0'; + argument++; + } + break; + + case 'T': + argument++; + nbTests=0; g_clockTime=0; + while ((*argument>='0') && (*argument<='9')) { + g_clockTime *= 10; + g_clockTime += *argument - '0'; + argument++; + } + if (*argument=='m') g_clockTime *=60, argument++; + if (*argument=='n') argument++; + g_clockTime *= SEC_TO_MICRO; + break; + + case 's': + argument++; + seed=0; + seedset=1; + while ((*argument>='0') && (*argument<='9')) { + seed *= 10; + seed += *argument - '0'; + argument++; + } + break; + + case 't': + argument++; + testNb=0; + while ((*argument>='0') && (*argument<='9')) { + testNb *= 10; + testNb += *argument - '0'; + argument++; + } + break; + + case 'P': /* compressibility % */ + argument++; + proba=0; + while ((*argument>='0') && (*argument<='9')) { + proba *= 10; + proba += *argument - '0'; + argument++; + } + if (proba<0) proba=0; + if (proba>100) proba=100; + break; + + default: + return FUZ_usage(programName); + } + } } } /* for(argNb=1; argNb<argc; argNb++) */ + + /* Get Seed */ + DISPLAY("Starting zstd_buffered tester (%i-bits, %s)\n", (int)(sizeof(size_t)*8), ZSTD_VERSION_STRING); + + if (!seedset) { + time_t const t = time(NULL); + U32 const h = XXH32(&t, sizeof(t), 1); + seed = h % 10000; + } + DISPLAY("Seed = %u\n", seed); + if (proba!=FUZ_COMPRESSIBILITY_DEFAULT) DISPLAY("Compressibility : %i%%\n", proba); + + if (nbTests<=0) nbTests=1; + + if (testNb==0) { + result = basicUnitTests(0, ((double)proba) / 100, customNULL); /* constant seed for predictability */ + if (!result) { + DISPLAYLEVEL(4, "Unit tests using customMem :\n") + result = basicUnitTests(0, ((double)proba) / 100, customMem); /* use custom memory allocation functions */ + } } + + if (!result) + result = fuzzerTests(seed, nbTests, testNb, ((double)proba) / 100); + + if (mainPause) { + int unused; + DISPLAY("Press Enter \n"); + unused = getchar(); + (void)unused; + } + return result; +} |