2 * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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.
12 /*-************************************
14 **************************************/
15 #ifndef ZSTDCLI_CLEVEL_DEFAULT
16 # define ZSTDCLI_CLEVEL_DEFAULT 3
19 #ifndef ZSTDCLI_CLEVEL_MAX
20 # define ZSTDCLI_CLEVEL_MAX 19 /* without using --ultra */
25 /*-************************************
27 **************************************/
28 #include "platform.h" /* IS_CONSOLE, PLATFORM_POSIX_VERSION */
29 #include "util.h" /* UTIL_HAS_CREATEFILELIST, UTIL_createFileList */
30 #include <stdio.h> /* fprintf(), stdin, stdout, stderr */
31 #include <string.h> /* strcmp, strlen */
32 #include <errno.h> /* errno */
33 #include "fileio.h" /* stdinmark, stdoutmark, ZSTD_EXTENSION */
35 # include "bench.h" /* BMK_benchFiles */
38 # include "dibio.h" /* ZDICT_cover_params_t, DiB_trainFromFiles() */
40 #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_minCLevel */
41 #include "zstd.h" /* ZSTD_VERSION_STRING, ZSTD_maxCLevel */
44 /*-************************************
46 **************************************/
47 #define COMPRESSOR_NAME "zstd command line interface"
49 # define ZSTD_VERSION "v" ZSTD_VERSION_STRING
51 #define AUTHOR "Yann Collet"
52 #define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR
54 #define ZSTD_ZSTDMT "zstdmt"
55 #define ZSTD_UNZSTD "unzstd"
56 #define ZSTD_CAT "zstdcat"
57 #define ZSTD_ZCAT "zcat"
58 #define ZSTD_GZ "gzip"
59 #define ZSTD_GUNZIP "gunzip"
60 #define ZSTD_GZCAT "gzcat"
61 #define ZSTD_LZMA "lzma"
62 #define ZSTD_UNLZMA "unlzma"
64 #define ZSTD_UNXZ "unxz"
65 #define ZSTD_LZ4 "lz4"
66 #define ZSTD_UNLZ4 "unlz4"
72 #define DISPLAY_LEVEL_DEFAULT 2
74 static const char* g_defaultDictName = "dictionary";
75 static const unsigned g_defaultMaxDictSize = 110 KB;
76 static const int g_defaultDictCLevel = 3;
77 static const unsigned g_defaultSelectivityLevel = 9;
78 static const unsigned g_defaultMaxWindowLog = 27;
79 #define OVERLAP_LOG_DEFAULT 9999
80 #define LDM_PARAM_DEFAULT 9999 /* Default for parameters where 0 is valid */
81 static U32 g_overlapLog = OVERLAP_LOG_DEFAULT;
82 static U32 g_ldmHashLog = 0;
83 static U32 g_ldmMinMatch = 0;
84 static U32 g_ldmHashEveryLog = LDM_PARAM_DEFAULT;
85 static U32 g_ldmBucketSizeLog = LDM_PARAM_DEFAULT;
88 #define DEFAULT_ACCEL 1
90 typedef enum { cover, fastCover, legacy } dictType;
92 /*-************************************
94 **************************************/
95 #define DISPLAY(...) fprintf(g_displayOut, __VA_ARGS__)
96 #define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } }
97 static int g_displayLevel = DISPLAY_LEVEL_DEFAULT; /* 0 : no display, 1: errors, 2 : + result + interaction + warnings, 3 : + progression, 4 : + information */
98 static FILE* g_displayOut;
101 /*-************************************
103 **************************************/
104 static int usage(const char* programName)
106 DISPLAY( "Usage : \n");
107 DISPLAY( " %s [args] [FILE(s)] [-o file] \n", programName);
109 DISPLAY( "FILE : a filename \n");
110 DISPLAY( " with no FILE, or when FILE is - , read standard input\n");
111 DISPLAY( "Arguments : \n");
112 #ifndef ZSTD_NOCOMPRESS
113 DISPLAY( " -# : # compression level (1-%d, default: %d) \n", ZSTDCLI_CLEVEL_MAX, ZSTDCLI_CLEVEL_DEFAULT);
115 #ifndef ZSTD_NODECOMPRESS
116 DISPLAY( " -d : decompression \n");
118 DISPLAY( " -D file: use `file` as Dictionary \n");
119 DISPLAY( " -o file: result stored into `file` (only if 1 input file) \n");
120 DISPLAY( " -f : overwrite output without prompting and (de)compress links \n");
121 DISPLAY( "--rm : remove source file(s) after successful de/compression \n");
122 DISPLAY( " -k : preserve source file(s) (default) \n");
123 DISPLAY( " -h/-H : display help/long help and exit \n");
127 static int usage_advanced(const char* programName)
129 DISPLAY(WELCOME_MESSAGE);
132 DISPLAY( "Advanced arguments : \n");
133 DISPLAY( " -V : display Version number and exit \n");
134 DISPLAY( " -v : verbose mode; specify multiple times to increase verbosity\n");
135 DISPLAY( " -q : suppress warnings; specify twice to suppress errors too\n");
136 DISPLAY( " -c : force write to standard output, even if it is the console\n");
137 DISPLAY( " -l : print information about zstd compressed files \n");
138 #ifndef ZSTD_NOCOMPRESS
139 DISPLAY( "--ultra : enable levels beyond %i, up to %i (requires more memory)\n", ZSTDCLI_CLEVEL_MAX, ZSTD_maxCLevel());
140 DISPLAY( "--long[=#]: enable long distance matching with given window log (default: %u)\n", g_defaultMaxWindowLog);
141 DISPLAY( "--fast[=#]: switch to ultra fast compression level (default: %u)\n", 1);
142 DISPLAY( "--adapt : dynamically adapt compression level to I/O conditions \n");
143 #ifdef ZSTD_MULTITHREAD
144 DISPLAY( " -T# : spawns # compression threads (default: 1, 0==# cores) \n");
145 DISPLAY( " -B# : select size of each job (default: 0==automatic) \n");
147 DISPLAY( "--no-dictID : don't write dictID into header (dictionary compression)\n");
148 DISPLAY( "--[no-]check : integrity check (default: enabled) \n");
150 #ifdef UTIL_HAS_CREATEFILELIST
151 DISPLAY( " -r : operate recursively on directories \n");
153 DISPLAY( "--format=zstd : compress files to the .zstd format (default) \n");
154 #ifdef ZSTD_GZCOMPRESS
155 DISPLAY( "--format=gzip : compress files to the .gz format \n");
157 #ifdef ZSTD_LZMACOMPRESS
158 DISPLAY( "--format=xz : compress files to the .xz format \n");
159 DISPLAY( "--format=lzma : compress files to the .lzma format \n");
161 #ifdef ZSTD_LZ4COMPRESS
162 DISPLAY( "--format=lz4 : compress files to the .lz4 format \n");
164 #ifndef ZSTD_NODECOMPRESS
165 DISPLAY( "--test : test compressed file integrity \n");
166 #if ZSTD_SPARSE_DEFAULT
167 DISPLAY( "--[no-]sparse : sparse mode (default: enabled on file, disabled on stdout)\n");
169 DISPLAY( "--[no-]sparse : sparse mode (default: disabled)\n");
172 DISPLAY( " -M# : Set a memory usage limit for decompression \n");
173 DISPLAY( "-- : All arguments after \"--\" are treated as files \n");
176 DISPLAY( "Dictionary builder : \n");
177 DISPLAY( "--train ## : create a dictionary from a training set of files \n");
178 DISPLAY( "--train-cover[=k=#,d=#,steps=#,split=#] : use the cover algorithm with optional args\n");
179 DISPLAY( "--train-fastcover[=k=#,d=#,f=#,steps=#,split=#,accel=#] : use the fast cover algorithm with optional args\n");
180 DISPLAY( "--train-legacy[=s=#] : use the legacy algorithm with selectivity (default: %u)\n", g_defaultSelectivityLevel);
181 DISPLAY( " -o file : `file` is dictionary name (default: %s) \n", g_defaultDictName);
182 DISPLAY( "--maxdict=# : limit dictionary to specified size (default: %u) \n", g_defaultMaxDictSize);
183 DISPLAY( "--dictID=# : force dictionary ID to specified value (default: random)\n");
187 DISPLAY( "Benchmark arguments : \n");
188 DISPLAY( " -b# : benchmark file(s), using # compression level (default: %d) \n", ZSTDCLI_CLEVEL_DEFAULT);
189 DISPLAY( " -e# : test all compression levels from -bX to # (default: 1)\n");
190 DISPLAY( " -i# : minimum evaluation time in seconds (default: 3s) \n");
191 DISPLAY( " -B# : cut file into independent blocks of size # (default: no block)\n");
192 DISPLAY( "--priority=rt : set process priority to real-time \n");
197 static int badusage(const char* programName)
199 DISPLAYLEVEL(1, "Incorrect parameters\n");
200 if (g_displayLevel >= 2) usage(programName);
204 static void waitEnter(void)
207 DISPLAY("Press enter to continue...\n");
212 static const char* lastNameFromPath(const char* path)
214 const char* name = path;
215 if (strrchr(name, '/')) name = strrchr(name, '/') + 1;
216 if (strrchr(name, '\\')) name = strrchr(name, '\\') + 1; /* windows */
221 @return : a non-zero value if exeName matches test, excluding the extension
223 static int exeNameMatch(const char* exeName, const char* test)
225 return !strncmp(exeName, test, strlen(test)) &&
226 (exeName[strlen(test)] == '\0' || exeName[strlen(test)] == '.');
229 static void errorOut(const char* msg)
231 DISPLAY("%s \n", msg); exit(1);
234 /*! readU32FromChar() :
235 * @return : unsigned integer value read from input in `char` format.
236 * allows and interprets K, KB, KiB, M, MB and MiB suffix.
237 * Will also modify `*stringPtr`, advancing it to position where it stopped reading.
238 * Note : function will exit() program if digit sequence overflows */
239 static unsigned readU32FromChar(const char** stringPtr)
241 const char errorMsg[] = "error: numeric value too large";
243 while ((**stringPtr >='0') && (**stringPtr <='9')) {
244 unsigned const max = (((unsigned)(-1)) / 10) - 1;
245 if (result > max) errorOut(errorMsg);
246 result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
248 if ((**stringPtr=='K') || (**stringPtr=='M')) {
249 unsigned const maxK = ((unsigned)(-1)) >> 10;
250 if (result > maxK) errorOut(errorMsg);
252 if (**stringPtr=='M') {
253 if (result > maxK) errorOut(errorMsg);
256 (*stringPtr)++; /* skip `K` or `M` */
257 if (**stringPtr=='i') (*stringPtr)++;
258 if (**stringPtr=='B') (*stringPtr)++;
263 /** longCommandWArg() :
264 * check if *stringPtr is the same as longCommand.
265 * If yes, @return 1 and advances *stringPtr to the position which immediately follows longCommand.
266 * @return 0 and doesn't modify *stringPtr otherwise.
268 static unsigned longCommandWArg(const char** stringPtr, const char* longCommand)
270 size_t const comSize = strlen(longCommand);
271 int const result = !strncmp(*stringPtr, longCommand, comSize);
272 if (result) *stringPtr += comSize;
279 * parseCoverParameters() :
280 * reads cover parameters from *stringPtr (e.g. "--train-cover=k=48,d=8,steps=32") into *params
281 * @return 1 means that cover parameters were correct
282 * @return 0 in case of malformed parameters
284 static unsigned parseCoverParameters(const char* stringPtr, ZDICT_cover_params_t* params)
286 memset(params, 0, sizeof(*params));
288 if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
289 if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
290 if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
291 if (longCommandWArg(&stringPtr, "split=")) {
292 unsigned splitPercentage = readU32FromChar(&stringPtr);
293 params->splitPoint = (double)splitPercentage / 100.0;
294 if (stringPtr[0]==',') { stringPtr++; continue; } else break;
298 if (stringPtr[0] != 0) return 0;
299 DISPLAYLEVEL(4, "cover: k=%u\nd=%u\nsteps=%u\nsplit=%u\n", params->k, params->d, params->steps, (unsigned)(params->splitPoint * 100));
304 * parseFastCoverParameters() :
305 * reads fastcover parameters from *stringPtr (e.g. "--train-fastcover=k=48,d=8,f=20,steps=32,accel=2") into *params
306 * @return 1 means that fastcover parameters were correct
307 * @return 0 in case of malformed parameters
309 static unsigned parseFastCoverParameters(const char* stringPtr, ZDICT_fastCover_params_t* params)
311 memset(params, 0, sizeof(*params));
313 if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
314 if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
315 if (longCommandWArg(&stringPtr, "f=")) { params->f = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
316 if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
317 if (longCommandWArg(&stringPtr, "accel=")) { params->accel = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
318 if (longCommandWArg(&stringPtr, "split=")) {
319 unsigned splitPercentage = readU32FromChar(&stringPtr);
320 params->splitPoint = (double)splitPercentage / 100.0;
321 if (stringPtr[0]==',') { stringPtr++; continue; } else break;
325 if (stringPtr[0] != 0) return 0;
326 DISPLAYLEVEL(4, "cover: k=%u\nd=%u\nf=%u\nsteps=%u\nsplit=%u\naccel=%u\n", params->k, params->d, params->f, params->steps, (unsigned)(params->splitPoint * 100), params->accel);
331 * parseLegacyParameters() :
332 * reads legacy dictioanry builter parameters from *stringPtr (e.g. "--train-legacy=selectivity=8") into *selectivity
333 * @return 1 means that legacy dictionary builder parameters were correct
334 * @return 0 in case of malformed parameters
336 static unsigned parseLegacyParameters(const char* stringPtr, unsigned* selectivity)
338 if (!longCommandWArg(&stringPtr, "s=") && !longCommandWArg(&stringPtr, "selectivity=")) { return 0; }
339 *selectivity = readU32FromChar(&stringPtr);
340 if (stringPtr[0] != 0) return 0;
341 DISPLAYLEVEL(4, "legacy: selectivity=%u\n", *selectivity);
345 static ZDICT_cover_params_t defaultCoverParams(void)
347 ZDICT_cover_params_t params;
348 memset(¶ms, 0, sizeof(params));
351 params.splitPoint = 1.0;
355 static ZDICT_fastCover_params_t defaultFastCoverParams(void)
357 ZDICT_fastCover_params_t params;
358 memset(¶ms, 0, sizeof(params));
362 params.splitPoint = 0.75; /* different from default splitPoint of cover */
363 params.accel = DEFAULT_ACCEL;
369 /** parseAdaptParameters() :
370 * reads adapt parameters from *stringPtr (e.g. "--zstd=min=1,max=19) and store them into adaptMinPtr and adaptMaxPtr.
371 * Both adaptMinPtr and adaptMaxPtr must be already allocated and correctly initialized.
372 * There is no guarantee that any of these values will be updated.
373 * @return 1 means that parsing was successful,
374 * @return 0 in case of malformed parameters
376 static unsigned parseAdaptParameters(const char* stringPtr, int* adaptMinPtr, int* adaptMaxPtr)
379 if (longCommandWArg(&stringPtr, "min=")) { *adaptMinPtr = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
380 if (longCommandWArg(&stringPtr, "max=")) { *adaptMaxPtr = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
381 DISPLAYLEVEL(4, "invalid compression parameter \n");
384 if (stringPtr[0] != 0) return 0; /* check the end of string */
385 if (*adaptMinPtr > *adaptMaxPtr) {
386 DISPLAYLEVEL(4, "incoherent adaptation limits \n");
393 /** parseCompressionParameters() :
394 * reads compression parameters from *stringPtr (e.g. "--zstd=wlog=23,clog=23,hlog=22,slog=6,slen=3,tlen=48,strat=6") into *params
395 * @return 1 means that compression parameters were correct
396 * @return 0 in case of malformed parameters
398 static unsigned parseCompressionParameters(const char* stringPtr, ZSTD_compressionParameters* params)
401 if (longCommandWArg(&stringPtr, "windowLog=") || longCommandWArg(&stringPtr, "wlog=")) { params->windowLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
402 if (longCommandWArg(&stringPtr, "chainLog=") || longCommandWArg(&stringPtr, "clog=")) { params->chainLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
403 if (longCommandWArg(&stringPtr, "hashLog=") || longCommandWArg(&stringPtr, "hlog=")) { params->hashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
404 if (longCommandWArg(&stringPtr, "searchLog=") || longCommandWArg(&stringPtr, "slog=")) { params->searchLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
405 if (longCommandWArg(&stringPtr, "searchLength=") || longCommandWArg(&stringPtr, "slen=")) { params->searchLength = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
406 if (longCommandWArg(&stringPtr, "targetLength=") || longCommandWArg(&stringPtr, "tlen=")) { params->targetLength = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
407 if (longCommandWArg(&stringPtr, "strategy=") || longCommandWArg(&stringPtr, "strat=")) { params->strategy = (ZSTD_strategy)(readU32FromChar(&stringPtr)); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
408 if (longCommandWArg(&stringPtr, "overlapLog=") || longCommandWArg(&stringPtr, "ovlog=")) { g_overlapLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
409 if (longCommandWArg(&stringPtr, "ldmHashLog=") || longCommandWArg(&stringPtr, "ldmhlog=")) { g_ldmHashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
410 if (longCommandWArg(&stringPtr, "ldmSearchLength=") || longCommandWArg(&stringPtr, "ldmslen=")) { g_ldmMinMatch = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
411 if (longCommandWArg(&stringPtr, "ldmBucketSizeLog=") || longCommandWArg(&stringPtr, "ldmblog=")) { g_ldmBucketSizeLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
412 if (longCommandWArg(&stringPtr, "ldmHashEveryLog=") || longCommandWArg(&stringPtr, "ldmhevery=")) { g_ldmHashEveryLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
413 DISPLAYLEVEL(4, "invalid compression parameter \n");
417 DISPLAYLEVEL(4, "windowLog=%d, chainLog=%d, hashLog=%d, searchLog=%d \n", params->windowLog, params->chainLog, params->hashLog, params->searchLog);
418 DISPLAYLEVEL(4, "searchLength=%d, targetLength=%d, strategy=%d \n", params->searchLength, params->targetLength, params->strategy);
419 if (stringPtr[0] != 0) return 0; /* check the end of string */
423 static void printVersion(void)
425 DISPLAY(WELCOME_MESSAGE);
427 DISPLAYLEVEL(3, "*** supports: zstd");
428 #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT>0) && (ZSTD_LEGACY_SUPPORT<8)
429 DISPLAYLEVEL(3, ", zstd legacy v0.%d+", ZSTD_LEGACY_SUPPORT);
431 #ifdef ZSTD_GZCOMPRESS
432 DISPLAYLEVEL(3, ", gzip");
434 #ifdef ZSTD_LZ4COMPRESS
435 DISPLAYLEVEL(3, ", lz4");
437 #ifdef ZSTD_LZMACOMPRESS
438 DISPLAYLEVEL(3, ", lzma, xz ");
440 DISPLAYLEVEL(3, "\n");
442 #ifdef _POSIX_C_SOURCE
443 DISPLAYLEVEL(4, "_POSIX_C_SOURCE defined: %ldL\n", (long) _POSIX_C_SOURCE);
445 #ifdef _POSIX_VERSION
446 DISPLAYLEVEL(4, "_POSIX_VERSION defined: %ldL \n", (long) _POSIX_VERSION);
448 #ifdef PLATFORM_POSIX_VERSION
449 DISPLAYLEVEL(4, "PLATFORM_POSIX_VERSION defined: %ldL\n", (long) PLATFORM_POSIX_VERSION);
453 typedef enum { zom_compress, zom_decompress, zom_test, zom_bench, zom_train, zom_list } zstd_operation_mode;
455 #define CLEAN_RETURN(i) { operationResult = (i); goto _end; }
457 #ifdef ZSTD_NOCOMPRESS
458 /* symbols from compression library are not defined and should not be invoked */
459 # define MINCLEVEL -50
460 # define MAXCLEVEL 22
462 # define MINCLEVEL ZSTD_minCLevel()
463 # define MAXCLEVEL ZSTD_maxCLevel()
466 int main(int argCount, const char* argv[])
476 adaptMin = MINCLEVEL,
477 adaptMax = MAXCLEVEL,
478 nextArgumentIsOutFileName = 0,
479 nextArgumentIsMaxDict = 0,
480 nextArgumentIsDictID = 0,
481 nextArgumentsAreFiles = 0,
482 nextEntryIsDictionary = 0,
488 double compressibility = 0.5;
489 unsigned bench_nbSeconds = 3; /* would be better if this value was synchronized from bench */
490 size_t blockSize = 0;
491 zstd_operation_mode operation = zom_compress;
492 ZSTD_compressionParameters compressionParams;
493 int cLevel = ZSTDCLI_CLEVEL_DEFAULT;
494 int cLevelLast = -1000000000;
495 unsigned recursive = 0;
496 unsigned memLimit = 0;
497 const char** filenameTable = (const char**)malloc(argCount * sizeof(const char*)); /* argCount >= 1 */
498 unsigned filenameIdx = 0;
499 const char* programName = argv[0];
500 const char* outFileName = NULL;
501 const char* dictFileName = NULL;
502 const char* suffix = ZSTD_EXTENSION;
503 unsigned maxDictSize = g_defaultMaxDictSize;
505 int dictCLevel = g_defaultDictCLevel;
506 unsigned dictSelect = g_defaultSelectivityLevel;
507 #ifdef UTIL_HAS_CREATEFILELIST
508 const char** extendedFileList = NULL;
509 char* fileNamesBuf = NULL;
510 unsigned fileNamesNb;
513 ZDICT_cover_params_t coverParams = defaultCoverParams();
514 ZDICT_fastCover_params_t fastCoverParams = defaultFastCoverParams();
515 dictType dict = fastCover;
518 BMK_advancedParams_t benchParams = BMK_initAdvancedParams();
523 (void)recursive; (void)cLevelLast; /* not used when ZSTD_NOBENCH set */
524 (void)memLimit; /* not used when ZSTD_NODECOMPRESS set */
525 if (filenameTable==NULL) { DISPLAY("zstd: %s \n", strerror(errno)); exit(1); }
526 filenameTable[0] = stdinmark;
527 g_displayOut = stderr;
528 programName = lastNameFromPath(programName);
529 #ifdef ZSTD_MULTITHREAD
533 /* preset behaviors */
534 if (exeNameMatch(programName, ZSTD_ZSTDMT)) nbWorkers=0, singleThread=0;
535 if (exeNameMatch(programName, ZSTD_UNZSTD)) operation=zom_decompress;
536 if (exeNameMatch(programName, ZSTD_CAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; g_displayLevel=1; } /* supports multiple formats */
537 if (exeNameMatch(programName, ZSTD_ZCAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; g_displayLevel=1; } /* behave like zcat, also supports multiple formats */
538 if (exeNameMatch(programName, ZSTD_GZ)) { suffix = GZ_EXTENSION; FIO_setCompressionType(FIO_gzipCompression); FIO_setRemoveSrcFile(1); } /* behave like gzip */
539 if (exeNameMatch(programName, ZSTD_GUNZIP)) { operation=zom_decompress; FIO_setRemoveSrcFile(1); } /* behave like gunzip, also supports multiple formats */
540 if (exeNameMatch(programName, ZSTD_GZCAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; g_displayLevel=1; } /* behave like gzcat, also supports multiple formats */
541 if (exeNameMatch(programName, ZSTD_LZMA)) { suffix = LZMA_EXTENSION; FIO_setCompressionType(FIO_lzmaCompression); FIO_setRemoveSrcFile(1); } /* behave like lzma */
542 if (exeNameMatch(programName, ZSTD_UNLZMA)) { operation=zom_decompress; FIO_setCompressionType(FIO_lzmaCompression); FIO_setRemoveSrcFile(1); } /* behave like unlzma, also supports multiple formats */
543 if (exeNameMatch(programName, ZSTD_XZ)) { suffix = XZ_EXTENSION; FIO_setCompressionType(FIO_xzCompression); FIO_setRemoveSrcFile(1); } /* behave like xz */
544 if (exeNameMatch(programName, ZSTD_UNXZ)) { operation=zom_decompress; FIO_setCompressionType(FIO_xzCompression); FIO_setRemoveSrcFile(1); } /* behave like unxz, also supports multiple formats */
545 if (exeNameMatch(programName, ZSTD_LZ4)) { suffix = LZ4_EXTENSION; FIO_setCompressionType(FIO_lz4Compression); } /* behave like lz4 */
546 if (exeNameMatch(programName, ZSTD_UNLZ4)) { operation=zom_decompress; FIO_setCompressionType(FIO_lz4Compression); } /* behave like unlz4, also supports multiple formats */
547 memset(&compressionParams, 0, sizeof(compressionParams));
549 /* init crash handler */
550 FIO_addAbortHandler();
552 /* command switches */
553 for (argNb=1; argNb<argCount; argNb++) {
554 const char* argument = argv[argNb];
555 if(!argument) continue; /* Protection if argument empty */
557 if (nextArgumentsAreFiles==0) {
558 /* "-" means stdin/stdout */
559 if (!strcmp(argument, "-")){
561 filenameIdx=1, filenameTable[0]=stdinmark;
562 outFileName=stdoutmark;
563 g_displayLevel-=(g_displayLevel==2);
567 /* Decode commands (note : aggregated commands are allowed) */
568 if (argument[0]=='-') {
570 if (argument[1]=='-') {
571 /* long commands (--long-word) */
572 if (!strcmp(argument, "--")) { nextArgumentsAreFiles=1; continue; } /* only file names allowed from now on */
573 if (!strcmp(argument, "--list")) { operation=zom_list; continue; }
574 if (!strcmp(argument, "--compress")) { operation=zom_compress; continue; }
575 if (!strcmp(argument, "--decompress")) { operation=zom_decompress; continue; }
576 if (!strcmp(argument, "--uncompress")) { operation=zom_decompress; continue; }
577 if (!strcmp(argument, "--force")) { FIO_overwriteMode(); forceStdout=1; followLinks=1; continue; }
578 if (!strcmp(argument, "--version")) { g_displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); }
579 if (!strcmp(argument, "--help")) { g_displayOut=stdout; CLEAN_RETURN(usage_advanced(programName)); }
580 if (!strcmp(argument, "--verbose")) { g_displayLevel++; continue; }
581 if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
582 if (!strcmp(argument, "--stdout")) { forceStdout=1; outFileName=stdoutmark; g_displayLevel-=(g_displayLevel==2); continue; }
583 if (!strcmp(argument, "--ultra")) { ultra=1; continue; }
584 if (!strcmp(argument, "--check")) { FIO_setChecksumFlag(2); continue; }
585 if (!strcmp(argument, "--no-check")) { FIO_setChecksumFlag(0); continue; }
586 if (!strcmp(argument, "--sparse")) { FIO_setSparseWrite(2); continue; }
587 if (!strcmp(argument, "--no-sparse")) { FIO_setSparseWrite(0); continue; }
588 if (!strcmp(argument, "--test")) { operation=zom_test; continue; }
589 if (!strcmp(argument, "--train")) { operation=zom_train; if (outFileName==NULL) outFileName=g_defaultDictName; continue; }
590 if (!strcmp(argument, "--maxdict")) { nextArgumentIsMaxDict=1; lastCommand=1; continue; } /* kept available for compatibility with old syntax ; will be removed one day */
591 if (!strcmp(argument, "--dictID")) { nextArgumentIsDictID=1; lastCommand=1; continue; } /* kept available for compatibility with old syntax ; will be removed one day */
592 if (!strcmp(argument, "--no-dictID")) { FIO_setDictIDFlag(0); continue; }
593 if (!strcmp(argument, "--keep")) { FIO_setRemoveSrcFile(0); continue; }
594 if (!strcmp(argument, "--rm")) { FIO_setRemoveSrcFile(1); continue; }
595 if (!strcmp(argument, "--priority=rt")) { setRealTimePrio = 1; continue; }
596 if (!strcmp(argument, "--adapt")) { adapt = 1; continue; }
597 if (longCommandWArg(&argument, "--adapt=")) { adapt = 1; if (!parseAdaptParameters(argument, &adaptMin, &adaptMax)) CLEAN_RETURN(badusage(programName)); continue; }
598 if (!strcmp(argument, "--single-thread")) { nbWorkers = 0; singleThread = 1; continue; }
599 if (!strcmp(argument, "--format=zstd")) { suffix = ZSTD_EXTENSION; FIO_setCompressionType(FIO_zstdCompression); continue; }
600 #ifdef ZSTD_GZCOMPRESS
601 if (!strcmp(argument, "--format=gzip")) { suffix = GZ_EXTENSION; FIO_setCompressionType(FIO_gzipCompression); continue; }
603 #ifdef ZSTD_LZMACOMPRESS
604 if (!strcmp(argument, "--format=lzma")) { suffix = LZMA_EXTENSION; FIO_setCompressionType(FIO_lzmaCompression); continue; }
605 if (!strcmp(argument, "--format=xz")) { suffix = XZ_EXTENSION; FIO_setCompressionType(FIO_xzCompression); continue; }
607 #ifdef ZSTD_LZ4COMPRESS
608 if (!strcmp(argument, "--format=lz4")) { suffix = LZ4_EXTENSION; FIO_setCompressionType(FIO_lz4Compression); continue; }
611 /* long commands with arguments */
613 if (longCommandWArg(&argument, "--train-cover")) {
614 operation = zom_train;
615 if (outFileName == NULL)
616 outFileName = g_defaultDictName;
618 /* Allow optional arguments following an = */
619 if (*argument == 0) { memset(&coverParams, 0, sizeof(coverParams)); }
620 else if (*argument++ != '=') { CLEAN_RETURN(badusage(programName)); }
621 else if (!parseCoverParameters(argument, &coverParams)) { CLEAN_RETURN(badusage(programName)); }
624 if (longCommandWArg(&argument, "--train-fastcover")) {
625 operation = zom_train;
626 if (outFileName == NULL)
627 outFileName = g_defaultDictName;
629 /* Allow optional arguments following an = */
630 if (*argument == 0) { memset(&fastCoverParams, 0, sizeof(fastCoverParams)); }
631 else if (*argument++ != '=') { CLEAN_RETURN(badusage(programName)); }
632 else if (!parseFastCoverParameters(argument, &fastCoverParams)) { CLEAN_RETURN(badusage(programName)); }
635 if (longCommandWArg(&argument, "--train-legacy")) {
636 operation = zom_train;
637 if (outFileName == NULL)
638 outFileName = g_defaultDictName;
640 /* Allow optional arguments following an = */
641 if (*argument == 0) { continue; }
642 else if (*argument++ != '=') { CLEAN_RETURN(badusage(programName)); }
643 else if (!parseLegacyParameters(argument, &dictSelect)) { CLEAN_RETURN(badusage(programName)); }
647 if (longCommandWArg(&argument, "--threads=")) { nbWorkers = readU32FromChar(&argument); continue; }
648 if (longCommandWArg(&argument, "--memlimit=")) { memLimit = readU32FromChar(&argument); continue; }
649 if (longCommandWArg(&argument, "--memory=")) { memLimit = readU32FromChar(&argument); continue; }
650 if (longCommandWArg(&argument, "--memlimit-decompress=")) { memLimit = readU32FromChar(&argument); continue; }
651 if (longCommandWArg(&argument, "--block-size=")) { blockSize = readU32FromChar(&argument); continue; }
652 if (longCommandWArg(&argument, "--maxdict=")) { maxDictSize = readU32FromChar(&argument); continue; }
653 if (longCommandWArg(&argument, "--dictID=")) { dictID = readU32FromChar(&argument); continue; }
654 if (longCommandWArg(&argument, "--zstd=")) { if (!parseCompressionParameters(argument, &compressionParams)) CLEAN_RETURN(badusage(programName)); continue; }
655 if (longCommandWArg(&argument, "--long")) {
656 unsigned ldmWindowLog = 0;
658 /* Parse optional window log */
659 if (*argument == '=') {
661 ldmWindowLog = readU32FromChar(&argument);
662 } else if (*argument != 0) {
663 /* Invalid character following --long */
664 CLEAN_RETURN(badusage(programName));
666 /* Only set windowLog if not already set by --zstd */
667 if (compressionParams.windowLog == 0)
668 compressionParams.windowLog = ldmWindowLog;
671 #ifndef ZSTD_NOCOMPRESS /* linking ZSTD_minCLevel() requires compression support */
672 if (longCommandWArg(&argument, "--fast")) {
673 /* Parse optional acceleration factor */
674 if (*argument == '=') {
675 U32 const maxFast = (U32)-ZSTD_minCLevel();
678 fastLevel = readU32FromChar(&argument);
679 if (fastLevel > maxFast) fastLevel = maxFast;
681 dictCLevel = cLevel = -(int)fastLevel;
683 CLEAN_RETURN(badusage(programName));
685 } else if (*argument != 0) {
686 /* Invalid character following --fast */
687 CLEAN_RETURN(badusage(programName));
689 cLevel = -1; /* default for --fast */
694 /* fall-through, will trigger bad_usage() later on */
698 while (argument[0]!=0) {
700 DISPLAY("error : command must be followed by argument \n");
703 #ifndef ZSTD_NOCOMPRESS
704 /* compression Level */
705 if ((*argument>='0') && (*argument<='9')) {
706 dictCLevel = cLevel = readU32FromChar(&argument);
714 case 'V': g_displayOut=stdout; printVersion(); CLEAN_RETURN(0); /* Version Only */
716 case 'h': g_displayOut=stdout; CLEAN_RETURN(usage_advanced(programName));
719 case 'z': operation=zom_compress; argument++; break;
724 benchParams.mode = BMK_decodeOnly;
725 if (operation==zom_bench) { argument++; break; } /* benchmark decode (hidden option) */
727 operation=zom_decompress; argument++; break;
729 /* Force stdout, even if stdout==console */
730 case 'c': forceStdout=1; outFileName=stdoutmark; argument++; break;
732 /* Use file content as dictionary */
733 case 'D': nextEntryIsDictionary = 1; lastCommand = 1; argument++; break;
736 case 'f': FIO_overwriteMode(); forceStdout=1; followLinks=1; argument++; break;
739 case 'v': g_displayLevel++; argument++; break;
742 case 'q': g_displayLevel--; argument++; break;
744 /* keep source file (default) */
745 case 'k': FIO_setRemoveSrcFile(0); argument++; break;
748 case 'C': FIO_setChecksumFlag(2); argument++; break;
750 /* test compressed file */
751 case 't': operation=zom_test; argument++; break;
753 /* destination file name */
754 case 'o': nextArgumentIsOutFileName=1; lastCommand=1; argument++; break;
756 /* limit decompression memory */
759 memLimit = readU32FromChar(&argument);
761 case 'l': operation=zom_list; argument++; break;
762 #ifdef UTIL_HAS_CREATEFILELIST
764 case 'r': recursive=1; argument++; break;
774 /* range bench (benchmark only) */
776 /* compression Level */
778 cLevelLast = readU32FromChar(&argument);
781 /* Modify Nb Iterations (benchmark only) */
784 bench_nbSeconds = readU32FromChar(&argument);
787 /* cut input into blocks (benchmark only) */
790 blockSize = readU32FromChar(&argument);
793 /* benchmark files separately (hidden option) */
799 #endif /* ZSTD_NOBENCH */
801 /* nb of threads (hidden option) */
804 nbWorkers = readU32FromChar(&argument);
807 /* Dictionary Selection level */
810 dictSelect = readU32FromChar(&argument);
813 /* Pause at the end (-p) or set an additional param (-p#) (hidden option) */
814 case 'p': argument++;
816 if ((*argument>='0') && (*argument<='9')) {
817 benchParams.additionalParam = (int)readU32FromChar(&argument);
823 /* Select compressibility of synthetic sample */
826 compressibility = (double)readU32FromChar(&argument) / 100;
830 /* unknown command */
831 default : CLEAN_RETURN(badusage(programName));
835 } /* if (argument[0]=='-') */
837 if (nextArgumentIsMaxDict) { /* kept available for compatibility with old syntax ; will be removed one day */
838 nextArgumentIsMaxDict = 0;
840 maxDictSize = readU32FromChar(&argument);
844 if (nextArgumentIsDictID) { /* kept available for compatibility with old syntax ; will be removed one day */
845 nextArgumentIsDictID = 0;
847 dictID = readU32FromChar(&argument);
851 } /* if (nextArgumentIsAFile==0) */
853 if (nextEntryIsDictionary) {
854 nextEntryIsDictionary = 0;
856 dictFileName = argument;
860 if (nextArgumentIsOutFileName) {
861 nextArgumentIsOutFileName = 0;
863 outFileName = argument;
864 if (!strcmp(outFileName, "-")) outFileName = stdoutmark;
868 /* add filename to list */
869 filenameTable[filenameIdx++] = argument;
872 if (lastCommand) { /* forgotten argument */
873 DISPLAY("error : command must be followed by argument \n");
877 /* Welcome message (if verbose) */
878 DISPLAYLEVEL(3, WELCOME_MESSAGE);
880 #ifdef ZSTD_MULTITHREAD
881 if ((nbWorkers==0) && (!singleThread)) {
882 /* automatically set # workers based on # of reported cpus */
883 nbWorkers = UTIL_countPhysicalCores();
884 DISPLAYLEVEL(3, "Note: %d physical core(s) detected \n", nbWorkers);
887 (void)singleThread; (void)nbWorkers;
890 #ifdef UTIL_HAS_CREATEFILELIST
891 g_utilDisplayLevel = g_displayLevel;
894 for (u=0, fileNamesNb=0; u<filenameIdx; u++) {
895 if (UTIL_isLink(filenameTable[u])) {
896 DISPLAYLEVEL(2, "Warning : %s is a symbolic link, ignoring\n", filenameTable[u]);
898 filenameTable[fileNamesNb++] = filenameTable[u];
901 filenameIdx = fileNamesNb;
903 if (recursive) { /* at this stage, filenameTable is a list of paths, which can contain both files and directories */
904 extendedFileList = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb, followLinks);
905 if (extendedFileList) {
907 for (u=0; u<fileNamesNb; u++) DISPLAYLEVEL(4, "%u %s\n", u, extendedFileList[u]);
908 free((void*)filenameTable);
909 filenameTable = extendedFileList;
910 filenameIdx = fileNamesNb;
917 if (operation == zom_list) {
918 #ifndef ZSTD_NODECOMPRESS
919 int const ret = FIO_listMultipleFiles(filenameIdx, filenameTable, g_displayLevel);
922 DISPLAY("file information is not supported \n");
927 /* Check if benchmark is selected */
928 if (operation==zom_bench) {
930 benchParams.blockSize = blockSize;
931 benchParams.nbWorkers = nbWorkers;
932 benchParams.realTime = setRealTimePrio;
933 benchParams.nbSeconds = bench_nbSeconds;
934 benchParams.ldmFlag = ldmFlag;
935 benchParams.ldmMinMatch = g_ldmMinMatch;
936 benchParams.ldmHashLog = g_ldmHashLog;
937 if (g_ldmBucketSizeLog != LDM_PARAM_DEFAULT) {
938 benchParams.ldmBucketSizeLog = g_ldmBucketSizeLog;
940 if (g_ldmHashEveryLog != LDM_PARAM_DEFAULT) {
941 benchParams.ldmHashEveryLog = g_ldmHashEveryLog;
944 if (cLevel > ZSTD_maxCLevel()) cLevel = ZSTD_maxCLevel();
945 if (cLevelLast > ZSTD_maxCLevel()) cLevelLast = ZSTD_maxCLevel();
946 if (cLevelLast < cLevel) cLevelLast = cLevel;
947 if (cLevelLast > cLevel)
948 DISPLAYLEVEL(3, "Benchmarking levels from %d to %d\n", cLevel, cLevelLast);
952 for(i = 0; i < filenameIdx; i++) {
954 DISPLAYLEVEL(3, "Benchmarking %s \n", filenameTable[i]);
955 for(c = cLevel; c <= cLevelLast; c++) {
956 BMK_benchFilesAdvanced(&filenameTable[i], 1, dictFileName, c, &compressionParams, g_displayLevel, &benchParams);
960 for(; cLevel <= cLevelLast; cLevel++) {
961 BMK_benchFilesAdvanced(filenameTable, filenameIdx, dictFileName, cLevel, &compressionParams, g_displayLevel, &benchParams);
965 for(; cLevel <= cLevelLast; cLevel++) {
966 BMK_syntheticTest(cLevel, compressibility, &compressionParams, g_displayLevel, &benchParams);
971 (void)bench_nbSeconds; (void)blockSize; (void)setRealTimePrio; (void)separateFiles; (void)compressibility;
976 /* Check if dictionary builder is selected */
977 if (operation==zom_train) {
979 ZDICT_params_t zParams;
980 zParams.compressionLevel = dictCLevel;
981 zParams.notificationLevel = g_displayLevel;
982 zParams.dictID = dictID;
984 int const optimize = !coverParams.k || !coverParams.d;
985 coverParams.nbThreads = nbWorkers;
986 coverParams.zParams = zParams;
987 operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, blockSize, NULL, &coverParams, NULL, optimize);
988 } else if (dict == fastCover) {
989 int const optimize = !fastCoverParams.k || !fastCoverParams.d;
990 fastCoverParams.nbThreads = nbWorkers;
991 fastCoverParams.zParams = zParams;
992 operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, blockSize, NULL, NULL, &fastCoverParams, optimize);
994 ZDICT_legacy_params_t dictParams;
995 memset(&dictParams, 0, sizeof(dictParams));
996 dictParams.selectivityLevel = dictSelect;
997 dictParams.zParams = zParams;
998 operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, blockSize, &dictParams, NULL, NULL, 0);
1001 (void)dictCLevel; (void)dictSelect; (void)dictID; (void)maxDictSize; /* not used when ZSTD_NODICT set */
1002 DISPLAYLEVEL(1, "training mode not available \n");
1003 operationResult = 1;
1008 #ifndef ZSTD_NODECOMPRESS
1009 if (operation==zom_test) { outFileName=nulmark; FIO_setRemoveSrcFile(0); } /* test mode */
1012 /* No input filename ==> use stdin and stdout */
1013 filenameIdx += !filenameIdx; /* filenameTable[0] is stdin by default */
1014 if (!strcmp(filenameTable[0], stdinmark) && !outFileName)
1015 outFileName = stdoutmark; /* when input is stdin, default output is stdout */
1017 /* Check if input/output defined as console; trigger an error in this case */
1018 if (!strcmp(filenameTable[0], stdinmark) && IS_CONSOLE(stdin) )
1019 CLEAN_RETURN(badusage(programName));
1020 if ( outFileName && !strcmp(outFileName, stdoutmark)
1021 && IS_CONSOLE(stdout)
1022 && !strcmp(filenameTable[0], stdinmark)
1024 && operation!=zom_decompress )
1025 CLEAN_RETURN(badusage(programName));
1027 #ifndef ZSTD_NOCOMPRESS
1028 /* check compression level limits */
1029 { int const maxCLevel = ultra ? ZSTD_maxCLevel() : ZSTDCLI_CLEVEL_MAX;
1030 if (cLevel > maxCLevel) {
1031 DISPLAYLEVEL(2, "Warning : compression level higher than max, reduced to %i \n", maxCLevel);
1036 /* No status message in pipe mode (stdin - stdout) or multi-files mode */
1037 if (!strcmp(filenameTable[0], stdinmark) && outFileName && !strcmp(outFileName,stdoutmark) && (g_displayLevel==2)) g_displayLevel=1;
1038 if ((filenameIdx>1) & (g_displayLevel==2)) g_displayLevel=1;
1040 /* IO Stream/File */
1041 FIO_setNotificationLevel(g_displayLevel);
1042 if (operation==zom_compress) {
1043 #ifndef ZSTD_NOCOMPRESS
1044 FIO_setNbWorkers(nbWorkers);
1045 FIO_setBlockSize((U32)blockSize);
1046 if (g_overlapLog!=OVERLAP_LOG_DEFAULT) FIO_setOverlapLog(g_overlapLog);
1047 FIO_setLdmFlag(ldmFlag);
1048 FIO_setLdmHashLog(g_ldmHashLog);
1049 FIO_setLdmMinMatch(g_ldmMinMatch);
1050 if (g_ldmBucketSizeLog != LDM_PARAM_DEFAULT) FIO_setLdmBucketSizeLog(g_ldmBucketSizeLog);
1051 if (g_ldmHashEveryLog != LDM_PARAM_DEFAULT) FIO_setLdmHashEveryLog(g_ldmHashEveryLog);
1052 FIO_setAdaptiveMode(adapt);
1053 FIO_setAdaptMin(adaptMin);
1054 FIO_setAdaptMax(adaptMax);
1055 if (adaptMin > cLevel) cLevel = adaptMin;
1056 if (adaptMax < cLevel) cLevel = adaptMax;
1058 if ((filenameIdx==1) && outFileName)
1059 operationResult = FIO_compressFilename(outFileName, filenameTable[0], dictFileName, cLevel, compressionParams);
1061 operationResult = FIO_compressMultipleFilenames(filenameTable, filenameIdx, outFileName, suffix, dictFileName, cLevel, compressionParams);
1063 (void)suffix; (void)adapt; (void)ultra; (void)cLevel; (void)ldmFlag; /* not used when ZSTD_NOCOMPRESS set */
1064 DISPLAY("Compression not supported \n");
1066 } else { /* decompression or test */
1067 #ifndef ZSTD_NODECOMPRESS
1068 if (memLimit == 0) {
1069 if (compressionParams.windowLog == 0)
1070 memLimit = (U32)1 << g_defaultMaxWindowLog;
1072 memLimit = (U32)1 << (compressionParams.windowLog & 31);
1075 FIO_setMemLimit(memLimit);
1076 if (filenameIdx==1 && outFileName)
1077 operationResult = FIO_decompressFilename(outFileName, filenameTable[0], dictFileName);
1079 operationResult = FIO_decompressMultipleFilenames(filenameTable, filenameIdx, outFileName, dictFileName);
1081 DISPLAY("Decompression not supported \n");
1086 if (main_pause) waitEnter();
1087 #ifdef UTIL_HAS_CREATEFILELIST
1088 if (extendedFileList)
1089 UTIL_freeFileList(extendedFileList, fileNamesBuf);
1092 free((void*)filenameTable);
1093 return operationResult;