--- /dev/null
+#include <stdio.h> /* fprintf */
+#include <stdlib.h> /* malloc, free, qsort */
+#include <string.h> /* strcmp, strlen */
+#include <errno.h> /* errno */
+#include <ctype.h>
+#include "fileio.h" /* stdinmark, stdoutmark, ZSTD_EXTENSION */
+#include "random.h"
+#include "util.h"
+
+#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+#define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
+
+static const unsigned g_defaultMaxDictSize = 110 KB;
+#define DEFAULT_CLEVEL 3
+#define DEFAULT_INPUTFILE ""
+#define DEFAULT_k 200
+#define DEFAULT_OUTPUTFILE "defaultDict"
+#define DEFAULT_DICTID 0
+
+
+static unsigned readU32FromChar(const char** stringPtr)
+{
+ const char errorMsg[] = "error: numeric value too large";
+ unsigned result = 0;
+ while ((**stringPtr >='0') && (**stringPtr <='9')) {
+ unsigned const max = (((unsigned)(-1)) / 10) - 1;
+ if (result > max) exit(1);
+ result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
+ }
+ if ((**stringPtr=='K') || (**stringPtr=='M')) {
+ unsigned const maxK = ((unsigned)(-1)) >> 10;
+ if (result > maxK) exit(1);
+ result <<= 10;
+ if (**stringPtr=='M') {
+ if (result > maxK) exit(1);
+ result <<= 10;
+ }
+ (*stringPtr)++; /* skip `K` or `M` */
+ if (**stringPtr=='i') (*stringPtr)++;
+ if (**stringPtr=='B') (*stringPtr)++;
+ }
+ return result;
+}
+
+
+/** longCommandWArg() :
+ * check if *stringPtr is the same as longCommand.
+ * If yes, @return 1 and advances *stringPtr to the position which immediately follows longCommand.
+ * @return 0 and doesn't modify *stringPtr otherwise.
+ */
+static unsigned longCommandWArg(const char** stringPtr, const char* longCommand)
+{
+ size_t const comSize = strlen(longCommand);
+ int const result = !strncmp(*stringPtr, longCommand, comSize);
+ if (result) *stringPtr += comSize;
+ return result;
+}
+
+
+int main(int argCount, const char* argv[])
+{
+ int displayLevel = 2;
+ const char* programName = argv[0];
+ int operationResult = 0;
+
+ unsigned cLevel = DEFAULT_CLEVEL;
+ char* inputFile = DEFAULT_INPUTFILE;
+ unsigned k = DEFAULT_k;
+ char* outputFile = DEFAULT_OUTPUTFILE;
+ unsigned dictID = DEFAULT_DICTID;
+ unsigned maxDictSize = g_defaultMaxDictSize;
+
+ const char** filenameTable = (const char**)malloc(argCount * sizeof(const char*));
+ unsigned filenameIdx = 0;
+
+ for (int i = 1; i < argCount; i++) {
+ const char* argument = argv[i];
+ if (longCommandWArg(&argument, "k=")) { k = readU32FromChar(&argument); continue; }
+ if (longCommandWArg(&argument, "c=")) { cLevel = readU32FromChar(&argument); continue; }
+ if (longCommandWArg(&argument, "dictID=")) { dictID = readU32FromChar(&argument); continue; }
+ if (longCommandWArg(&argument, "maxdict=")) { maxDictSize = readU32FromChar(&argument); continue; }
+ if (longCommandWArg(&argument, "in=")) {
+ inputFile = malloc(strlen(argument) + 1);
+ strcpy(inputFile, argument);
+ filenameTable[filenameIdx] = inputFile;
+ filenameIdx++;
+ continue;
+ }
+ if (longCommandWArg(&argument, "out=")) {
+ outputFile = malloc(strlen(argument) + 1);
+ strcpy(outputFile, argument);
+ continue;
+ }
+ DISPLAYLEVEL(1, "Incorrect parameters\n");
+ operationResult = 1;
+ return operationResult;
+ }
+
+
+ char* fileNamesBuf = NULL;
+ unsigned fileNamesNb = filenameIdx;
+ int followLinks = 0;
+ const char** extendedFileList = NULL;
+ extendedFileList = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb, followLinks);
+ if (extendedFileList) {
+ unsigned u;
+ for (u=0; u<fileNamesNb; u++) DISPLAYLEVEL(4, "%u %s\n", u, extendedFileList[u]);
+ free((void*)filenameTable);
+ filenameTable = extendedFileList;
+ filenameIdx = fileNamesNb;
+ }
+
+ size_t blockSize = 0;
+
+ ZDICT_random_params_t params;
+ ZDICT_params_t zParams;
+ zParams.compressionLevel = cLevel;
+ zParams.notificationLevel = displayLevel;
+ zParams.dictID = dictID;
+ params.zParams = zParams;
+ params.k = k;
+
+ operationResult = RANDOM_trainFromFiles(outputFile, maxDictSize, filenameTable, filenameIdx, blockSize, ¶ms);
+ return operationResult;
+}
--- /dev/null
+/*-*************************************
+* Dependencies
+***************************************/
+#include <stdio.h> /* fprintf */
+#include <stdlib.h> /* malloc, free, qsort */
+#include <string.h> /* memset */
+#include <time.h> /* clock */
+#include "zstd_internal.h" /* includes zstd.h */
+#ifndef ZDICT_STATIC_LINKING_ONLY
+#define ZDICT_STATIC_LINKING_ONLY
+#endif
+#include "random.h"
+#include "platform.h" /* Large Files support */
+#include "util.h" /* UTIL_getFileSize, UTIL_getTotalFileSize */
+
+/*-*************************************
+* Constants
+***************************************/
+#define SAMPLESIZE_MAX (128 KB)
+#define RANDOM_MAX_SAMPLES_SIZE (sizeof(size_t) == 8 ? ((U32)-1) : ((U32)1 GB))
+#define RANDOM_MEMMULT 9
+static const size_t g_maxMemory = (sizeof(size_t) == 4) ? (2 GB - 64 MB) : ((size_t)(512 MB) << sizeof(size_t));
+
+#define NOISELENGTH 32
+#define DEFAULT_K 200
+
+/*-*************************************
+* Console display
+***************************************/
+#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+#define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
+
+static const U64 g_refreshRate = SEC_TO_MICRO / 6;
+static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER;
+
+#define DISPLAYUPDATE(l, ...) { if (displayLevel>=l) { \
+ if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (displayLevel>=4)) \
+ { g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \
+ if (displayLevel>=4) fflush(stderr); } } }
+
+
+/*-*************************************
+* Exceptions
+***************************************/
+#ifndef DEBUG
+# define DEBUG 0
+#endif
+#define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__);
+#define EXM_THROW(error, ...) \
+{ \
+ DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \
+ DISPLAY("Error %i : ", error); \
+ DISPLAY(__VA_ARGS__); \
+ DISPLAY("\n"); \
+ exit(error); \
+}
+
+
+/* ********************************************************
+* File related operations
+**********************************************************/
+/** loadFiles() :
+ * load samples from files listed in fileNamesTable into buffer.
+ * works even if buffer is too small to load all samples.
+ * Also provides the size of each sample into sampleSizes table
+ * which must be sized correctly, using DiB_fileStats().
+ * @return : nb of samples effectively loaded into `buffer`
+ * *bufferSizePtr is modified, it provides the amount data loaded within buffer.
+ * sampleSizes is filled with the size of each sample.
+ */
+static unsigned loadFiles(void* buffer, size_t* bufferSizePtr,
+ size_t* sampleSizes, unsigned sstSize,
+ const char** fileNamesTable, unsigned nbFiles, size_t targetChunkSize,
+ unsigned displayLevel)
+{
+ char* const buff = (char*)buffer;
+ size_t pos = 0;
+ unsigned nbLoadedChunks = 0, fileIndex;
+
+ for (fileIndex=0; fileIndex<nbFiles; fileIndex++) {
+ const char* const fileName = fileNamesTable[fileIndex];
+ unsigned long long const fs64 = UTIL_getFileSize(fileName);
+ unsigned long long remainingToLoad = (fs64 == UTIL_FILESIZE_UNKNOWN) ? 0 : fs64;
+ U32 const nbChunks = targetChunkSize ? (U32)((fs64 + (targetChunkSize-1)) / targetChunkSize) : 1;
+ U64 const chunkSize = targetChunkSize ? MIN(targetChunkSize, fs64) : fs64;
+ size_t const maxChunkSize = (size_t)MIN(chunkSize, SAMPLESIZE_MAX);
+ U32 cnb;
+ FILE* const f = fopen(fileName, "rb");
+ if (f==NULL) EXM_THROW(10, "zstd: dictBuilder: %s %s ", fileName, strerror(errno));
+ DISPLAYUPDATE(2, "Loading %s... \r", fileName);
+ for (cnb=0; cnb<nbChunks; cnb++) {
+ size_t const toLoad = (size_t)MIN(maxChunkSize, remainingToLoad);
+ if (toLoad > *bufferSizePtr-pos) break;
+ { size_t const readSize = fread(buff+pos, 1, toLoad, f);
+ if (readSize != toLoad) EXM_THROW(11, "Pb reading %s", fileName);
+ pos += readSize;
+ sampleSizes[nbLoadedChunks++] = toLoad;
+ remainingToLoad -= targetChunkSize;
+ if (nbLoadedChunks == sstSize) { /* no more space left in sampleSizes table */
+ fileIndex = nbFiles; /* stop there */
+ break;
+ }
+ if (toLoad < targetChunkSize) {
+ fseek(f, (long)(targetChunkSize - toLoad), SEEK_CUR);
+ } } }
+ fclose(f);
+ }
+ DISPLAYLEVEL(2, "\r%79s\r", "");
+ *bufferSizePtr = pos;
+ DISPLAYLEVEL(4, "loaded : %u KB \n", (U32)(pos >> 10))
+ return nbLoadedChunks;
+}
+
+
+
+#define rotl32(x,r) ((x << r) | (x >> (32 - r)))
+static U32 getRand(U32* src)
+{
+ static const U32 prime1 = 2654435761U;
+ static const U32 prime2 = 2246822519U;
+ U32 rand32 = *src;
+ rand32 *= prime1;
+ rand32 ^= prime2;
+ rand32 = rotl32(rand32, 13);
+ *src = rand32;
+ return rand32 >> 5;
+}
+
+
+/* shuffle() :
+ * shuffle a table of file names in a semi-random way
+ * It improves dictionary quality by reducing "locality" impact, so if sample set is very large,
+ * it will load random elements from it, instead of just the first ones. */
+static void shuffle(const char** fileNamesTable, unsigned nbFiles) {
+ U32 seed = 0xFD2FB528;
+ unsigned i;
+ for (i = nbFiles - 1; i > 0; --i) {
+ unsigned const j = getRand(&seed) % (i + 1);
+ const char* const tmp = fileNamesTable[j];
+ fileNamesTable[j] = fileNamesTable[i];
+ fileNamesTable[i] = tmp;
+ }
+}
+
+
+
+/*-********************************************************
+* Dictionary training functions
+**********************************************************/
+static size_t findMaxMem(unsigned long long requiredMem)
+{
+ size_t const step = 8 MB;
+ void* testmem = NULL;
+
+ requiredMem = (((requiredMem >> 23) + 1) << 23);
+ requiredMem += step;
+ if (requiredMem > g_maxMemory) requiredMem = g_maxMemory;
+
+ while (!testmem) {
+ testmem = malloc((size_t)requiredMem);
+ requiredMem -= step;
+ }
+
+ free(testmem);
+ return (size_t)requiredMem;
+}
+
+static void saveDict(const char* dictFileName,
+ const void* buff, size_t buffSize)
+{
+ FILE* const f = fopen(dictFileName, "wb");
+ if (f==NULL) EXM_THROW(3, "cannot open %s ", dictFileName);
+
+ { size_t const n = fwrite(buff, 1, buffSize, f);
+ if (n!=buffSize) EXM_THROW(4, "%s : write error", dictFileName) }
+
+ { size_t const n = (size_t)fclose(f);
+ if (n!=0) EXM_THROW(5, "%s : flush error", dictFileName) }
+}
+
+/*! getFileStats() :
+ * Given a list of files, and a chunkSize (0 == no chunk, whole files)
+ * provides the amount of data to be loaded and the resulting nb of samples.
+ * This is useful primarily for allocation purpose => sample buffer, and sample sizes table.
+ */
+static fileStats getFileStats(const char** fileNamesTable, unsigned nbFiles, size_t chunkSize, unsigned displayLevel)
+{
+ fileStats fs;
+ unsigned n;
+ memset(&fs, 0, sizeof(fs));
+ for (n=0; n<nbFiles; n++) {
+ U64 const fileSize = UTIL_getFileSize(fileNamesTable[n]);
+ U64 const srcSize = (fileSize == UTIL_FILESIZE_UNKNOWN) ? 0 : fileSize;
+ U32 const nbSamples = (U32)(chunkSize ? (srcSize + (chunkSize-1)) / chunkSize : 1);
+ U64 const chunkToLoad = chunkSize ? MIN(chunkSize, srcSize) : srcSize;
+ size_t const cappedChunkSize = (size_t)MIN(chunkToLoad, SAMPLESIZE_MAX);
+ fs.totalSizeToLoad += cappedChunkSize * nbSamples;
+ fs.oneSampleTooLarge |= (chunkSize > 2*SAMPLESIZE_MAX);
+ fs.nbSamples += nbSamples;
+ }
+ DISPLAYLEVEL(4, "Preparing to load : %u KB \n", (U32)(fs.totalSizeToLoad >> 10));
+ return fs;
+}
+
+
+
+
+
+/* ********************************************************
+* Random Dictionary Builder
+**********************************************************/
+/**
+ * Returns the sum of the sample sizes.
+ */
+static size_t RANDOM_sum(const size_t *samplesSizes, unsigned nbSamples) {
+ size_t sum = 0;
+ unsigned i;
+ for (i = 0; i < nbSamples; ++i) {
+ sum += samplesSizes[i];
+ }
+ return sum;
+}
+
+
+/**
+ * Selects a random segment from totalSamplesSize - k + 1 possible segments
+ */
+static RANDOM_segment_t RANDOM_selectSegment(const RANDOM_ctx_t *ctx,
+ ZDICT_random_params_t parameters) {
+ const U32 k = parameters.k;
+ RANDOM_segment_t segment;
+ unsigned index;
+
+ /* Seed random number generator */
+ srand((unsigned)time(NULL));
+ /* Randomly generate a number from 0 to sampleSizes - k */
+ index = rand()%(ctx->totalSamplesSize - k + 1);
+
+ /* inclusive */
+ segment.begin = index;
+ segment.end = index + k - 1;
+
+ return segment;
+}
+
+
+/**
+ * Check the validity of the parameters.
+ * Returns non-zero if the parameters are valid and 0 otherwise.
+ */
+static int RANDOM_checkParameters(ZDICT_random_params_t parameters, size_t maxDictSize) {
+ /* k is a required parameter */
+ if (parameters.k == 0) {
+ return 0;
+ }
+ /* k <= maxDictSize */
+ if (parameters.k > maxDictSize) {
+ return 0;
+ }
+ return 1;
+}
+
+
+/**
+ * Clean up a context initialized with `RANDOM_ctx_init()`.
+ */
+static void RANDOM_ctx_destroy(RANDOM_ctx_t *ctx) {
+ if (!ctx) {
+ return;
+ }
+ if (ctx->offsets) {
+ free(ctx->offsets);
+ ctx->offsets = NULL;
+ }
+}
+
+
+/**
+ * Prepare a context for dictionary building.
+ * Returns 1 on success or zero on error.
+ * The context must be destroyed with `RANDOM_ctx_destroy()`.
+ */
+static int RANDOM_ctx_init(RANDOM_ctx_t *ctx, const void *samplesBuffer,
+ const size_t *samplesSizes, unsigned nbSamples) {
+ const BYTE *const samples = (const BYTE *)samplesBuffer;
+ const size_t totalSamplesSize = RANDOM_sum(samplesSizes, nbSamples);
+ const int displayLevel = 2;
+ /* Checks */
+ if (totalSamplesSize >= (size_t)RANDOM_MAX_SAMPLES_SIZE) {
+ DISPLAYLEVEL(1, "Total samples size is too large (%u MB), maximum size is %u MB\n",
+ (U32)(totalSamplesSize>>20), (RANDOM_MAX_SAMPLES_SIZE >> 20));
+ return 0;
+ }
+ memset(ctx, 0, sizeof(*ctx));
+ DISPLAYLEVEL(1, "Building dictionary from %u samples of total size %u\n", nbSamples,
+ (U32)totalSamplesSize);
+ ctx->samples = samples;
+ ctx->samplesSizes = samplesSizes;
+ ctx->nbSamples = nbSamples;
+ ctx->offsets = (size_t *)malloc((nbSamples + 1) * sizeof(size_t));
+ ctx->totalSamplesSize = (U32)totalSamplesSize;
+ if (!ctx->offsets) {
+ DISPLAYLEVEL(1, "Failed to allocate buffer for offsets\n");
+ RANDOM_ctx_destroy(ctx);
+ return 0;
+ }
+ {
+ U32 i;
+ ctx->offsets[0] = 0;
+ for (i = 1; i <= nbSamples; ++i) {
+ ctx->offsets[i] = ctx->offsets[i - 1] + samplesSizes[i - 1];
+ }
+ }
+ return 1;
+}
+
+
+/**
+ * Given the prepared context build the dictionary.
+ */
+static size_t RANDOM_buildDictionary(const RANDOM_ctx_t *ctx, void *dictBuffer,
+ size_t dictBufferCapacity,
+ ZDICT_random_params_t parameters) {
+ BYTE *const dict = (BYTE *)dictBuffer;
+ size_t tail = dictBufferCapacity;
+ const int displayLevel = parameters.zParams.notificationLevel;
+ while (tail > 0) {
+
+ /* Select a segment */
+ RANDOM_segment_t segment = RANDOM_selectSegment(ctx, parameters);
+
+ size_t segmentSize;
+ segmentSize = MIN(segment.end - segment.begin + 1, tail);
+
+ tail -= segmentSize;
+ memcpy(dict + tail, ctx->samples + segment.begin, segmentSize);
+ DISPLAYUPDATE(
+ 2, "\r%u%% ",
+ (U32)(((dictBufferCapacity - tail) * 100) / dictBufferCapacity));
+ }
+
+ return tail;
+}
+
+/*! ZDICT_trainFromBuffer_random():
+ * Train a dictionary from an array of samples using the RANDOM algorithm.
+ * Samples must be stored concatenated in a single flat buffer `samplesBuffer`,
+ * supplied with an array of sizes `samplesSizes`, providing the size of each sample, in order.
+ * The resulting dictionary will be saved into `dictBuffer`.
+ * @return: size of dictionary stored into `dictBuffer` (<= `dictBufferCapacity`)
+ * or an error code, which can be tested with ZDICT_isError().
+ */
+ZDICTLIB_API size_t ZDICT_trainFromBuffer_random(
+ void *dictBuffer, size_t dictBufferCapacity,
+ const void *samplesBuffer, const size_t *samplesSizes, unsigned nbSamples,
+ ZDICT_random_params_t parameters) {
+ const int displayLevel = parameters.zParams.notificationLevel;
+ BYTE* const dict = (BYTE*)dictBuffer;
+ RANDOM_ctx_t ctx;
+ /* Checks */
+ if (!RANDOM_checkParameters(parameters, dictBufferCapacity)) {
+ DISPLAYLEVEL(1, "k is incorrect\n");
+ return ERROR(GENERIC);
+ }
+ if (nbSamples == 0) {
+ DISPLAYLEVEL(1, "Random must have at least one input file\n");
+ return ERROR(GENERIC);
+ }
+ if (dictBufferCapacity < ZDICT_DICTSIZE_MIN) {
+ DISPLAYLEVEL(1, "dictBufferCapacity must be at least %u\n",
+ ZDICT_DICTSIZE_MIN);
+ return ERROR(dstSize_tooSmall);
+ }
+
+ if (!RANDOM_ctx_init(&ctx, samplesBuffer, samplesSizes, nbSamples)) {
+ return ERROR(GENERIC);
+ }
+ DISPLAYLEVEL(2, "Building dictionary\n");
+ {
+ const size_t tail = RANDOM_buildDictionary(&ctx, dictBuffer, dictBufferCapacity, parameters);
+ const size_t dictSize = ZDICT_finalizeDictionary(
+ dict, dictBufferCapacity, dict + tail, dictBufferCapacity - tail,
+ samplesBuffer, samplesSizes, nbSamples, parameters.zParams);
+ if (!ZSTD_isError(dictSize)) {
+ DISPLAYLEVEL(2, "Constructed dictionary of size %u\n",
+ (U32)dictSize);
+ }
+ RANDOM_ctx_destroy(&ctx);
+ return dictSize;
+ }
+}
+
+
+int RANDOM_trainFromFiles(const char* dictFileName, unsigned maxDictSize,
+ const char** fileNamesTable, unsigned nbFiles,
+ size_t chunkSize, ZDICT_random_params_t *params){
+ unsigned const displayLevel = params->zParams.notificationLevel;
+ void* const dictBuffer = malloc(maxDictSize);
+ fileStats const fs = getFileStats(fileNamesTable, nbFiles, chunkSize, displayLevel);
+ size_t* const sampleSizes = (size_t*)malloc(fs.nbSamples * sizeof(size_t));
+ size_t const memMult = RANDOM_MEMMULT;
+ size_t const maxMem = findMaxMem(fs.totalSizeToLoad * memMult) / memMult;
+ size_t loadedSize = (size_t) MIN ((unsigned long long)maxMem, fs.totalSizeToLoad);
+ void* const srcBuffer = malloc(loadedSize+NOISELENGTH);
+ int result = 0;
+
+ /* Checks */
+ if ((!sampleSizes) || (!srcBuffer) || (!dictBuffer))
+ EXM_THROW(12, "not enough memory for DiB_trainFiles"); /* should not happen */
+ if (fs.oneSampleTooLarge) {
+ DISPLAYLEVEL(2, "! Warning : some sample(s) are very large \n");
+ DISPLAYLEVEL(2, "! Note that dictionary is only useful for small samples. \n");
+ DISPLAYLEVEL(2, "! As a consequence, only the first %u bytes of each sample are loaded \n", SAMPLESIZE_MAX);
+ }
+ if (fs.nbSamples < 5) {
+ DISPLAYLEVEL(2, "! Warning : nb of samples too low for proper processing ! \n");
+ DISPLAYLEVEL(2, "! Please provide _one file per sample_. \n");
+ DISPLAYLEVEL(2, "! Alternatively, split files into fixed-size blocks representative of samples, with -B# \n");
+ EXM_THROW(14, "nb of samples too low"); /* we now clearly forbid this case */
+ }
+ if (fs.totalSizeToLoad < (unsigned long long)(8 * maxDictSize)) {
+ DISPLAYLEVEL(2, "! Warning : data size of samples too small for target dictionary size \n");
+ DISPLAYLEVEL(2, "! Samples should be about 100x larger than target dictionary size \n");
+ }
+
+ /* init */
+ if (loadedSize < fs.totalSizeToLoad)
+ DISPLAYLEVEL(1, "Not enough memory; training on %u MB only...\n", (unsigned)(loadedSize >> 20));
+
+ /* Load input buffer */
+ DISPLAYLEVEL(3, "Shuffling input files\n");
+ shuffle(fileNamesTable, nbFiles);
+ nbFiles = loadFiles(srcBuffer, &loadedSize, sampleSizes, fs.nbSamples, fileNamesTable, nbFiles, chunkSize, displayLevel);
+
+ { size_t dictSize;
+ dictSize = ZDICT_trainFromBuffer_random(dictBuffer, maxDictSize, srcBuffer,
+ sampleSizes, fs.nbSamples, *params);
+ DISPLAYLEVEL(2, "k=%u\n", params->k);
+ if (ZDICT_isError(dictSize)) {
+ DISPLAYLEVEL(1, "dictionary training failed : %s \n", ZDICT_getErrorName(dictSize)); /* should not happen */
+ result = 1;
+ goto _cleanup;
+ }
+ /* save dict */
+ DISPLAYLEVEL(2, "Save dictionary of size %u into file %s \n", (U32)dictSize, dictFileName);
+ saveDict(dictFileName, dictBuffer, dictSize);
+ }
+
+ /* clean up */
+_cleanup:
+ free(srcBuffer);
+ free(sampleSizes);
+ free(dictBuffer);
+ return result;
+}
projects / thirdparty / zstd.git / commitdiff
