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 <stdlib.h> /* getenv */
32 #include <string.h> /* strcmp, strlen */
33 #include <errno.h> /* errno */
34 #include "fileio.h" /* stdinmark, stdoutmark, ZSTD_EXTENSION */
36 # include "benchzstd.h" /* BMK_benchFiles */
39 # include "dibio.h" /* ZDICT_cover_params_t, DiB_trainFromFiles() */
41 #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_minCLevel */
42 #include "zstd.h" /* ZSTD_VERSION_STRING, ZSTD_maxCLevel */
45 /*-************************************
47 **************************************/
48 #define COMPRESSOR_NAME "zstd command line interface"
50 # define ZSTD_VERSION "v" ZSTD_VERSION_STRING
52 #define AUTHOR "Yann Collet"
53 #define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR
55 #define ZSTD_ZSTDMT "zstdmt"
56 #define ZSTD_UNZSTD "unzstd"
57 #define ZSTD_CAT "zstdcat"
58 #define ZSTD_ZCAT "zcat"
59 #define ZSTD_GZ "gzip"
60 #define ZSTD_GUNZIP "gunzip"
61 #define ZSTD_GZCAT "gzcat"
62 #define ZSTD_LZMA "lzma"
63 #define ZSTD_UNLZMA "unlzma"
65 #define ZSTD_UNXZ "unxz"
66 #define ZSTD_LZ4 "lz4"
67 #define ZSTD_UNLZ4 "unlz4"
73 #define DISPLAY_LEVEL_DEFAULT 2
75 static const char* g_defaultDictName = "dictionary";
76 static const unsigned g_defaultMaxDictSize = 110 KB;
77 static const int g_defaultDictCLevel = 3;
78 static const unsigned g_defaultSelectivityLevel = 9;
79 static const unsigned g_defaultMaxWindowLog = 27;
80 #define OVERLAP_LOG_DEFAULT 9999
81 #define LDM_PARAM_DEFAULT 9999 /* Default for parameters where 0 is valid */
82 static U32 g_overlapLog = OVERLAP_LOG_DEFAULT;
83 static U32 g_ldmHashLog = 0;
84 static U32 g_ldmMinMatch = 0;
85 static U32 g_ldmHashRateLog = LDM_PARAM_DEFAULT;
86 static U32 g_ldmBucketSizeLog = LDM_PARAM_DEFAULT;
89 #define DEFAULT_ACCEL 1
91 typedef enum { cover, fastCover, legacy } dictType;
93 /*-************************************
95 **************************************/
96 #define DISPLAY(...) fprintf(g_displayOut, __VA_ARGS__)
97 #define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } }
98 static int g_displayLevel = DISPLAY_LEVEL_DEFAULT; /* 0 : no display, 1: errors, 2 : + result + interaction + warnings, 3 : + progression, 4 : + information */
99 static FILE* g_displayOut;
102 /*-************************************
104 **************************************/
105 static int usage(const char* programName)
107 DISPLAY( "Usage : \n");
108 DISPLAY( " %s [args] [FILE(s)] [-o file] \n", programName);
110 DISPLAY( "FILE : a filename \n");
111 DISPLAY( " with no FILE, or when FILE is - , read standard input\n");
112 DISPLAY( "Arguments : \n");
113 #ifndef ZSTD_NOCOMPRESS
114 DISPLAY( " -# : # compression level (1-%d, default: %d) \n", ZSTDCLI_CLEVEL_MAX, ZSTDCLI_CLEVEL_DEFAULT);
116 #ifndef ZSTD_NODECOMPRESS
117 DISPLAY( " -d : decompression \n");
119 DISPLAY( " -D file: use `file` as Dictionary \n");
120 DISPLAY( " -o file: result stored into `file` (only if 1 input file) \n");
121 DISPLAY( " -f : overwrite output without prompting and (de)compress links \n");
122 DISPLAY( "--rm : remove source file(s) after successful de/compression \n");
123 DISPLAY( " -k : preserve source file(s) (default) \n");
124 DISPLAY( " -h/-H : display help/long help and exit \n");
128 static int usage_advanced(const char* programName)
130 DISPLAY(WELCOME_MESSAGE);
133 DISPLAY( "Advanced arguments : \n");
134 DISPLAY( " -V : display Version number and exit \n");
135 DISPLAY( " -v : verbose mode; specify multiple times to increase verbosity\n");
136 DISPLAY( " -q : suppress warnings; specify twice to suppress errors too\n");
137 DISPLAY( " -c : force write to standard output, even if it is the console\n");
138 DISPLAY( " -l : print information about zstd compressed files \n");
139 #ifndef ZSTD_NOCOMPRESS
140 DISPLAY( "--ultra : enable levels beyond %i, up to %i (requires more memory)\n", ZSTDCLI_CLEVEL_MAX, ZSTD_maxCLevel());
141 DISPLAY( "--long[=#]: enable long distance matching with given window log (default: %u)\n", g_defaultMaxWindowLog);
142 DISPLAY( "--fast[=#]: switch to ultra fast compression level (default: %u)\n", 1);
143 DISPLAY( "--adapt : dynamically adapt compression level to I/O conditions \n");
144 #ifdef ZSTD_MULTITHREAD
145 DISPLAY( " -T# : spawns # compression threads (default: 1, 0==# cores) \n");
146 DISPLAY( " -B# : select size of each job (default: 0==automatic) \n");
147 DISPLAY( " --rsyncable : compress using a rsync-friendly method (-B sets block size) \n");
149 DISPLAY( "--no-dictID : don't write dictID into header (dictionary compression)\n");
150 DISPLAY( "--[no-]check : integrity check (default: enabled) \n");
152 #ifdef UTIL_HAS_CREATEFILELIST
153 DISPLAY( " -r : operate recursively on directories \n");
155 DISPLAY( "--format=zstd : compress files to the .zst format (default) \n");
156 #ifdef ZSTD_GZCOMPRESS
157 DISPLAY( "--format=gzip : compress files to the .gz format \n");
159 #ifdef ZSTD_LZMACOMPRESS
160 DISPLAY( "--format=xz : compress files to the .xz format \n");
161 DISPLAY( "--format=lzma : compress files to the .lzma format \n");
163 #ifdef ZSTD_LZ4COMPRESS
164 DISPLAY( "--format=lz4 : compress files to the .lz4 format \n");
166 #ifndef ZSTD_NODECOMPRESS
167 DISPLAY( "--test : test compressed file integrity \n");
168 #if ZSTD_SPARSE_DEFAULT
169 DISPLAY( "--[no-]sparse : sparse mode (default: enabled on file, disabled on stdout)\n");
171 DISPLAY( "--[no-]sparse : sparse mode (default: disabled)\n");
174 DISPLAY( " -M# : Set a memory usage limit for decompression \n");
175 DISPLAY( "--no-progress : do not display the progress bar \n");
176 DISPLAY( "-- : All arguments after \"--\" are treated as files \n");
179 DISPLAY( "Dictionary builder : \n");
180 DISPLAY( "--train ## : create a dictionary from a training set of files \n");
181 DISPLAY( "--train-cover[=k=#,d=#,steps=#,split=#] : use the cover algorithm with optional args\n");
182 DISPLAY( "--train-fastcover[=k=#,d=#,f=#,steps=#,split=#,accel=#] : use the fast cover algorithm with optional args\n");
183 DISPLAY( "--train-legacy[=s=#] : use the legacy algorithm with selectivity (default: %u)\n", g_defaultSelectivityLevel);
184 DISPLAY( " -o file : `file` is dictionary name (default: %s) \n", g_defaultDictName);
185 DISPLAY( "--maxdict=# : limit dictionary to specified size (default: %u) \n", g_defaultMaxDictSize);
186 DISPLAY( "--dictID=# : force dictionary ID to specified value (default: random)\n");
190 DISPLAY( "Benchmark arguments : \n");
191 DISPLAY( " -b# : benchmark file(s), using # compression level (default: %d) \n", ZSTDCLI_CLEVEL_DEFAULT);
192 DISPLAY( " -e# : test all compression levels from -bX to # (default: 1)\n");
193 DISPLAY( " -i# : minimum evaluation time in seconds (default: 3s) \n");
194 DISPLAY( " -B# : cut file into independent blocks of size # (default: no block)\n");
195 DISPLAY( "--priority=rt : set process priority to real-time \n");
200 static int badusage(const char* programName)
202 DISPLAYLEVEL(1, "Incorrect parameters\n");
203 if (g_displayLevel >= 2) usage(programName);
207 static void waitEnter(void)
210 DISPLAY("Press enter to continue...\n");
215 static const char* lastNameFromPath(const char* path)
217 const char* name = path;
218 if (strrchr(name, '/')) name = strrchr(name, '/') + 1;
219 if (strrchr(name, '\\')) name = strrchr(name, '\\') + 1; /* windows */
224 @return : a non-zero value if exeName matches test, excluding the extension
226 static int exeNameMatch(const char* exeName, const char* test)
228 return !strncmp(exeName, test, strlen(test)) &&
229 (exeName[strlen(test)] == '\0' || exeName[strlen(test)] == '.');
232 static void errorOut(const char* msg)
234 DISPLAY("%s \n", msg); exit(1);
237 /*! readU32FromCharChecked() :
238 * @return 0 if success, and store the result in *value.
239 * allows and interprets K, KB, KiB, M, MB and MiB suffix.
240 * Will also modify `*stringPtr`, advancing it to position where it stopped reading.
241 * @return 1 if an overflow error occurs */
242 static int readU32FromCharChecked(const char** stringPtr, unsigned* value)
244 static unsigned const max = (((unsigned)(-1)) / 10) - 1;
246 while ((**stringPtr >='0') && (**stringPtr <='9')) {
247 if (result > max) return 1; // overflow error
248 result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
250 if ((**stringPtr=='K') || (**stringPtr=='M')) {
251 unsigned const maxK = ((unsigned)(-1)) >> 10;
252 if (result > maxK) return 1; // overflow error
254 if (**stringPtr=='M') {
255 if (result > maxK) return 1; // overflow error
258 (*stringPtr)++; /* skip `K` or `M` */
259 if (**stringPtr=='i') (*stringPtr)++;
260 if (**stringPtr=='B') (*stringPtr)++;
266 /*! readU32FromChar() :
267 * @return : unsigned integer value read from input in `char` format.
268 * allows and interprets K, KB, KiB, M, MB and MiB suffix.
269 * Will also modify `*stringPtr`, advancing it to position where it stopped reading.
270 * Note : function will exit() program if digit sequence overflows */
271 static unsigned readU32FromChar(const char** stringPtr) {
272 static const char errorMsg[] = "error: numeric value too large";
274 if (readU32FromCharChecked(stringPtr, &result)) { errorOut(errorMsg); }
278 /** longCommandWArg() :
279 * check if *stringPtr is the same as longCommand.
280 * If yes, @return 1 and advances *stringPtr to the position which immediately follows longCommand.
281 * @return 0 and doesn't modify *stringPtr otherwise.
283 static unsigned longCommandWArg(const char** stringPtr, const char* longCommand)
285 size_t const comSize = strlen(longCommand);
286 int const result = !strncmp(*stringPtr, longCommand, comSize);
287 if (result) *stringPtr += comSize;
294 * parseCoverParameters() :
295 * reads cover parameters from *stringPtr (e.g. "--train-cover=k=48,d=8,steps=32") into *params
296 * @return 1 means that cover parameters were correct
297 * @return 0 in case of malformed parameters
299 static unsigned parseCoverParameters(const char* stringPtr, ZDICT_cover_params_t* params)
301 memset(params, 0, sizeof(*params));
303 if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
304 if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
305 if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
306 if (longCommandWArg(&stringPtr, "split=")) {
307 unsigned splitPercentage = readU32FromChar(&stringPtr);
308 params->splitPoint = (double)splitPercentage / 100.0;
309 if (stringPtr[0]==',') { stringPtr++; continue; } else break;
313 if (stringPtr[0] != 0) return 0;
314 DISPLAYLEVEL(4, "cover: k=%u\nd=%u\nsteps=%u\nsplit=%u\n", params->k, params->d, params->steps, (unsigned)(params->splitPoint * 100));
319 * parseFastCoverParameters() :
320 * reads fastcover parameters from *stringPtr (e.g. "--train-fastcover=k=48,d=8,f=20,steps=32,accel=2") into *params
321 * @return 1 means that fastcover parameters were correct
322 * @return 0 in case of malformed parameters
324 static unsigned parseFastCoverParameters(const char* stringPtr, ZDICT_fastCover_params_t* params)
326 memset(params, 0, sizeof(*params));
328 if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
329 if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
330 if (longCommandWArg(&stringPtr, "f=")) { params->f = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
331 if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
332 if (longCommandWArg(&stringPtr, "accel=")) { params->accel = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
333 if (longCommandWArg(&stringPtr, "split=")) {
334 unsigned splitPercentage = readU32FromChar(&stringPtr);
335 params->splitPoint = (double)splitPercentage / 100.0;
336 if (stringPtr[0]==',') { stringPtr++; continue; } else break;
340 if (stringPtr[0] != 0) return 0;
341 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);
346 * parseLegacyParameters() :
347 * reads legacy dictioanry builter parameters from *stringPtr (e.g. "--train-legacy=selectivity=8") into *selectivity
348 * @return 1 means that legacy dictionary builder parameters were correct
349 * @return 0 in case of malformed parameters
351 static unsigned parseLegacyParameters(const char* stringPtr, unsigned* selectivity)
353 if (!longCommandWArg(&stringPtr, "s=") && !longCommandWArg(&stringPtr, "selectivity=")) { return 0; }
354 *selectivity = readU32FromChar(&stringPtr);
355 if (stringPtr[0] != 0) return 0;
356 DISPLAYLEVEL(4, "legacy: selectivity=%u\n", *selectivity);
360 static ZDICT_cover_params_t defaultCoverParams(void)
362 ZDICT_cover_params_t params;
363 memset(¶ms, 0, sizeof(params));
366 params.splitPoint = 1.0;
370 static ZDICT_fastCover_params_t defaultFastCoverParams(void)
372 ZDICT_fastCover_params_t params;
373 memset(¶ms, 0, sizeof(params));
377 params.splitPoint = 0.75; /* different from default splitPoint of cover */
378 params.accel = DEFAULT_ACCEL;
384 /** parseAdaptParameters() :
385 * reads adapt parameters from *stringPtr (e.g. "--zstd=min=1,max=19) and store them into adaptMinPtr and adaptMaxPtr.
386 * Both adaptMinPtr and adaptMaxPtr must be already allocated and correctly initialized.
387 * There is no guarantee that any of these values will be updated.
388 * @return 1 means that parsing was successful,
389 * @return 0 in case of malformed parameters
391 static unsigned parseAdaptParameters(const char* stringPtr, int* adaptMinPtr, int* adaptMaxPtr)
394 if (longCommandWArg(&stringPtr, "min=")) { *adaptMinPtr = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
395 if (longCommandWArg(&stringPtr, "max=")) { *adaptMaxPtr = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
396 DISPLAYLEVEL(4, "invalid compression parameter \n");
399 if (stringPtr[0] != 0) return 0; /* check the end of string */
400 if (*adaptMinPtr > *adaptMaxPtr) {
401 DISPLAYLEVEL(4, "incoherent adaptation limits \n");
408 /** parseCompressionParameters() :
409 * reads compression parameters from *stringPtr (e.g. "--zstd=wlog=23,clog=23,hlog=22,slog=6,mml=3,tlen=48,strat=6") into *params
410 * @return 1 means that compression parameters were correct
411 * @return 0 in case of malformed parameters
413 static unsigned parseCompressionParameters(const char* stringPtr, ZSTD_compressionParameters* params)
416 if (longCommandWArg(&stringPtr, "windowLog=") || longCommandWArg(&stringPtr, "wlog=")) { params->windowLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
417 if (longCommandWArg(&stringPtr, "chainLog=") || longCommandWArg(&stringPtr, "clog=")) { params->chainLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
418 if (longCommandWArg(&stringPtr, "hashLog=") || longCommandWArg(&stringPtr, "hlog=")) { params->hashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
419 if (longCommandWArg(&stringPtr, "searchLog=") || longCommandWArg(&stringPtr, "slog=")) { params->searchLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
420 if (longCommandWArg(&stringPtr, "minMatch=") || longCommandWArg(&stringPtr, "mml=")) { params->minMatch = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
421 if (longCommandWArg(&stringPtr, "targetLength=") || longCommandWArg(&stringPtr, "tlen=")) { params->targetLength = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
422 if (longCommandWArg(&stringPtr, "strategy=") || longCommandWArg(&stringPtr, "strat=")) { params->strategy = (ZSTD_strategy)(readU32FromChar(&stringPtr)); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
423 if (longCommandWArg(&stringPtr, "overlapLog=") || longCommandWArg(&stringPtr, "ovlog=")) { g_overlapLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
424 if (longCommandWArg(&stringPtr, "ldmHashLog=") || longCommandWArg(&stringPtr, "lhlog=")) { g_ldmHashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
425 if (longCommandWArg(&stringPtr, "ldmMinMatch=") || longCommandWArg(&stringPtr, "lmml=")) { g_ldmMinMatch = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
426 if (longCommandWArg(&stringPtr, "ldmBucketSizeLog=") || longCommandWArg(&stringPtr, "lblog=")) { g_ldmBucketSizeLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
427 if (longCommandWArg(&stringPtr, "ldmHashRateLog=") || longCommandWArg(&stringPtr, "lhrlog=")) { g_ldmHashRateLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; }
428 DISPLAYLEVEL(4, "invalid compression parameter \n");
432 DISPLAYLEVEL(4, "windowLog=%d, chainLog=%d, hashLog=%d, searchLog=%d \n", params->windowLog, params->chainLog, params->hashLog, params->searchLog);
433 DISPLAYLEVEL(4, "minMatch=%d, targetLength=%d, strategy=%d \n", params->minMatch, params->targetLength, params->strategy);
434 if (stringPtr[0] != 0) return 0; /* check the end of string */
438 static void printVersion(void)
440 DISPLAY(WELCOME_MESSAGE);
442 DISPLAYLEVEL(3, "*** supports: zstd");
443 #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT>0) && (ZSTD_LEGACY_SUPPORT<8)
444 DISPLAYLEVEL(3, ", zstd legacy v0.%d+", ZSTD_LEGACY_SUPPORT);
446 #ifdef ZSTD_GZCOMPRESS
447 DISPLAYLEVEL(3, ", gzip");
449 #ifdef ZSTD_LZ4COMPRESS
450 DISPLAYLEVEL(3, ", lz4");
452 #ifdef ZSTD_LZMACOMPRESS
453 DISPLAYLEVEL(3, ", lzma, xz ");
455 DISPLAYLEVEL(3, "\n");
457 #ifdef _POSIX_C_SOURCE
458 DISPLAYLEVEL(4, "_POSIX_C_SOURCE defined: %ldL\n", (long) _POSIX_C_SOURCE);
460 #ifdef _POSIX_VERSION
461 DISPLAYLEVEL(4, "_POSIX_VERSION defined: %ldL \n", (long) _POSIX_VERSION);
463 #ifdef PLATFORM_POSIX_VERSION
464 DISPLAYLEVEL(4, "PLATFORM_POSIX_VERSION defined: %ldL\n", (long) PLATFORM_POSIX_VERSION);
468 /* Environment variables for parameter setting */
469 #define ENV_CLEVEL "ZSTD_CLEVEL"
471 /* functions that pick up environment variables */
472 static int init_cLevel(void) {
473 const char* const env = getenv(ENV_CLEVEL);
475 const char *ptr = env;
480 } else if (*ptr == '+') {
484 if ((*ptr>='0') && (*ptr<='9')) {
486 if (readU32FromCharChecked(&ptr, &absLevel)) {
487 DISPLAYLEVEL(2, "Ignore environment variable setting %s=%s: numeric value too large\n", ENV_CLEVEL, env);
488 return ZSTDCLI_CLEVEL_DEFAULT;
489 } else if (*ptr == 0) {
490 return sign * absLevel;
494 DISPLAYLEVEL(2, "Ignore environment variable setting %s=%s: not a valid integer value\n", ENV_CLEVEL, env);
497 return ZSTDCLI_CLEVEL_DEFAULT;
500 typedef enum { zom_compress, zom_decompress, zom_test, zom_bench, zom_train, zom_list } zstd_operation_mode;
502 #define CLEAN_RETURN(i) { operationResult = (i); goto _end; }
504 #ifdef ZSTD_NOCOMPRESS
505 /* symbols from compression library are not defined and should not be invoked */
506 # define MINCLEVEL -50
507 # define MAXCLEVEL 22
509 # define MINCLEVEL ZSTD_minCLevel()
510 # define MAXCLEVEL ZSTD_maxCLevel()
513 int main(int argCount, const char* argv[])
523 adaptMin = MINCLEVEL,
524 adaptMax = MAXCLEVEL,
526 nextArgumentIsOutFileName = 0,
527 nextArgumentIsMaxDict = 0,
528 nextArgumentIsDictID = 0,
529 nextArgumentsAreFiles = 0,
530 nextEntryIsDictionary = 0,
536 double compressibility = 0.5;
537 unsigned bench_nbSeconds = 3; /* would be better if this value was synchronized from bench */
538 size_t blockSize = 0;
539 zstd_operation_mode operation = zom_compress;
540 ZSTD_compressionParameters compressionParams;
542 int cLevelLast = -1000000000;
543 unsigned recursive = 0;
544 unsigned memLimit = 0;
545 const char** filenameTable = (const char**)malloc(argCount * sizeof(const char*)); /* argCount >= 1 */
546 unsigned filenameIdx = 0;
547 const char* programName = argv[0];
548 const char* outFileName = NULL;
549 const char* dictFileName = NULL;
550 const char* suffix = ZSTD_EXTENSION;
551 unsigned maxDictSize = g_defaultMaxDictSize;
553 int dictCLevel = g_defaultDictCLevel;
554 unsigned dictSelect = g_defaultSelectivityLevel;
555 #ifdef UTIL_HAS_CREATEFILELIST
556 const char** extendedFileList = NULL;
557 char* fileNamesBuf = NULL;
558 unsigned fileNamesNb;
561 ZDICT_cover_params_t coverParams = defaultCoverParams();
562 ZDICT_fastCover_params_t fastCoverParams = defaultFastCoverParams();
563 dictType dict = fastCover;
566 BMK_advancedParams_t benchParams = BMK_initAdvancedParams();
571 (void)recursive; (void)cLevelLast; /* not used when ZSTD_NOBENCH set */
572 (void)memLimit; /* not used when ZSTD_NODECOMPRESS set */
573 if (filenameTable==NULL) { DISPLAY("zstd: %s \n", strerror(errno)); exit(1); }
574 filenameTable[0] = stdinmark;
575 g_displayOut = stderr;
576 cLevel = init_cLevel();
577 programName = lastNameFromPath(programName);
578 #ifdef ZSTD_MULTITHREAD
582 /* preset behaviors */
583 if (exeNameMatch(programName, ZSTD_ZSTDMT)) nbWorkers=0, singleThread=0;
584 if (exeNameMatch(programName, ZSTD_UNZSTD)) operation=zom_decompress;
585 if (exeNameMatch(programName, ZSTD_CAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; g_displayLevel=1; } /* supports multiple formats */
586 if (exeNameMatch(programName, ZSTD_ZCAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; g_displayLevel=1; } /* behave like zcat, also supports multiple formats */
587 if (exeNameMatch(programName, ZSTD_GZ)) { suffix = GZ_EXTENSION; FIO_setCompressionType(FIO_gzipCompression); FIO_setRemoveSrcFile(1); } /* behave like gzip */
588 if (exeNameMatch(programName, ZSTD_GUNZIP)) { operation=zom_decompress; FIO_setRemoveSrcFile(1); } /* behave like gunzip, also supports multiple formats */
589 if (exeNameMatch(programName, ZSTD_GZCAT)) { operation=zom_decompress; forceStdout=1; FIO_overwriteMode(); outFileName=stdoutmark; g_displayLevel=1; } /* behave like gzcat, also supports multiple formats */
590 if (exeNameMatch(programName, ZSTD_LZMA)) { suffix = LZMA_EXTENSION; FIO_setCompressionType(FIO_lzmaCompression); FIO_setRemoveSrcFile(1); } /* behave like lzma */
591 if (exeNameMatch(programName, ZSTD_UNLZMA)) { operation=zom_decompress; FIO_setCompressionType(FIO_lzmaCompression); FIO_setRemoveSrcFile(1); } /* behave like unlzma, also supports multiple formats */
592 if (exeNameMatch(programName, ZSTD_XZ)) { suffix = XZ_EXTENSION; FIO_setCompressionType(FIO_xzCompression); FIO_setRemoveSrcFile(1); } /* behave like xz */
593 if (exeNameMatch(programName, ZSTD_UNXZ)) { operation=zom_decompress; FIO_setCompressionType(FIO_xzCompression); FIO_setRemoveSrcFile(1); } /* behave like unxz, also supports multiple formats */
594 if (exeNameMatch(programName, ZSTD_LZ4)) { suffix = LZ4_EXTENSION; FIO_setCompressionType(FIO_lz4Compression); } /* behave like lz4 */
595 if (exeNameMatch(programName, ZSTD_UNLZ4)) { operation=zom_decompress; FIO_setCompressionType(FIO_lz4Compression); } /* behave like unlz4, also supports multiple formats */
596 memset(&compressionParams, 0, sizeof(compressionParams));
598 /* init crash handler */
599 FIO_addAbortHandler();
601 /* command switches */
602 for (argNb=1; argNb<argCount; argNb++) {
603 const char* argument = argv[argNb];
604 if(!argument) continue; /* Protection if argument empty */
606 if (nextArgumentsAreFiles==0) {
607 /* "-" means stdin/stdout */
608 if (!strcmp(argument, "-")){
610 filenameIdx=1, filenameTable[0]=stdinmark;
611 outFileName=stdoutmark;
612 g_displayLevel-=(g_displayLevel==2);
616 /* Decode commands (note : aggregated commands are allowed) */
617 if (argument[0]=='-') {
619 if (argument[1]=='-') {
620 /* long commands (--long-word) */
621 if (!strcmp(argument, "--")) { nextArgumentsAreFiles=1; continue; } /* only file names allowed from now on */
622 if (!strcmp(argument, "--list")) { operation=zom_list; continue; }
623 if (!strcmp(argument, "--compress")) { operation=zom_compress; continue; }
624 if (!strcmp(argument, "--decompress")) { operation=zom_decompress; continue; }
625 if (!strcmp(argument, "--uncompress")) { operation=zom_decompress; continue; }
626 if (!strcmp(argument, "--force")) { FIO_overwriteMode(); forceStdout=1; followLinks=1; continue; }
627 if (!strcmp(argument, "--version")) { g_displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); }
628 if (!strcmp(argument, "--help")) { g_displayOut=stdout; CLEAN_RETURN(usage_advanced(programName)); }
629 if (!strcmp(argument, "--verbose")) { g_displayLevel++; continue; }
630 if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
631 if (!strcmp(argument, "--stdout")) { forceStdout=1; outFileName=stdoutmark; g_displayLevel-=(g_displayLevel==2); continue; }
632 if (!strcmp(argument, "--ultra")) { ultra=1; continue; }
633 if (!strcmp(argument, "--check")) { FIO_setChecksumFlag(2); continue; }
634 if (!strcmp(argument, "--no-check")) { FIO_setChecksumFlag(0); continue; }
635 if (!strcmp(argument, "--sparse")) { FIO_setSparseWrite(2); continue; }
636 if (!strcmp(argument, "--no-sparse")) { FIO_setSparseWrite(0); continue; }
637 if (!strcmp(argument, "--test")) { operation=zom_test; continue; }
638 if (!strcmp(argument, "--train")) { operation=zom_train; if (outFileName==NULL) outFileName=g_defaultDictName; continue; }
639 if (!strcmp(argument, "--maxdict")) { nextArgumentIsMaxDict=1; lastCommand=1; continue; } /* kept available for compatibility with old syntax ; will be removed one day */
640 if (!strcmp(argument, "--dictID")) { nextArgumentIsDictID=1; lastCommand=1; continue; } /* kept available for compatibility with old syntax ; will be removed one day */
641 if (!strcmp(argument, "--no-dictID")) { FIO_setDictIDFlag(0); continue; }
642 if (!strcmp(argument, "--keep")) { FIO_setRemoveSrcFile(0); continue; }
643 if (!strcmp(argument, "--rm")) { FIO_setRemoveSrcFile(1); continue; }
644 if (!strcmp(argument, "--priority=rt")) { setRealTimePrio = 1; continue; }
645 if (!strcmp(argument, "--adapt")) { adapt = 1; continue; }
646 if (longCommandWArg(&argument, "--adapt=")) { adapt = 1; if (!parseAdaptParameters(argument, &adaptMin, &adaptMax)) CLEAN_RETURN(badusage(programName)); continue; }
647 if (!strcmp(argument, "--single-thread")) { nbWorkers = 0; singleThread = 1; continue; }
648 if (!strcmp(argument, "--format=zstd")) { suffix = ZSTD_EXTENSION; FIO_setCompressionType(FIO_zstdCompression); continue; }
649 #ifdef ZSTD_GZCOMPRESS
650 if (!strcmp(argument, "--format=gzip")) { suffix = GZ_EXTENSION; FIO_setCompressionType(FIO_gzipCompression); continue; }
652 #ifdef ZSTD_LZMACOMPRESS
653 if (!strcmp(argument, "--format=lzma")) { suffix = LZMA_EXTENSION; FIO_setCompressionType(FIO_lzmaCompression); continue; }
654 if (!strcmp(argument, "--format=xz")) { suffix = XZ_EXTENSION; FIO_setCompressionType(FIO_xzCompression); continue; }
656 #ifdef ZSTD_LZ4COMPRESS
657 if (!strcmp(argument, "--format=lz4")) { suffix = LZ4_EXTENSION; FIO_setCompressionType(FIO_lz4Compression); continue; }
659 if (!strcmp(argument, "--rsyncable")) { rsyncable = 1; continue; }
660 if (!strcmp(argument, "--no-progress")) { FIO_setNoProgress(1); continue; }
662 /* long commands with arguments */
664 if (longCommandWArg(&argument, "--train-cover")) {
665 operation = zom_train;
666 if (outFileName == NULL)
667 outFileName = g_defaultDictName;
669 /* Allow optional arguments following an = */
670 if (*argument == 0) { memset(&coverParams, 0, sizeof(coverParams)); }
671 else if (*argument++ != '=') { CLEAN_RETURN(badusage(programName)); }
672 else if (!parseCoverParameters(argument, &coverParams)) { CLEAN_RETURN(badusage(programName)); }
675 if (longCommandWArg(&argument, "--train-fastcover")) {
676 operation = zom_train;
677 if (outFileName == NULL)
678 outFileName = g_defaultDictName;
680 /* Allow optional arguments following an = */
681 if (*argument == 0) { memset(&fastCoverParams, 0, sizeof(fastCoverParams)); }
682 else if (*argument++ != '=') { CLEAN_RETURN(badusage(programName)); }
683 else if (!parseFastCoverParameters(argument, &fastCoverParams)) { CLEAN_RETURN(badusage(programName)); }
686 if (longCommandWArg(&argument, "--train-legacy")) {
687 operation = zom_train;
688 if (outFileName == NULL)
689 outFileName = g_defaultDictName;
691 /* Allow optional arguments following an = */
692 if (*argument == 0) { continue; }
693 else if (*argument++ != '=') { CLEAN_RETURN(badusage(programName)); }
694 else if (!parseLegacyParameters(argument, &dictSelect)) { CLEAN_RETURN(badusage(programName)); }
698 if (longCommandWArg(&argument, "--threads=")) { nbWorkers = readU32FromChar(&argument); continue; }
699 if (longCommandWArg(&argument, "--memlimit=")) { memLimit = readU32FromChar(&argument); continue; }
700 if (longCommandWArg(&argument, "--memory=")) { memLimit = readU32FromChar(&argument); continue; }
701 if (longCommandWArg(&argument, "--memlimit-decompress=")) { memLimit = readU32FromChar(&argument); continue; }
702 if (longCommandWArg(&argument, "--block-size=")) { blockSize = readU32FromChar(&argument); continue; }
703 if (longCommandWArg(&argument, "--maxdict=")) { maxDictSize = readU32FromChar(&argument); continue; }
704 if (longCommandWArg(&argument, "--dictID=")) { dictID = readU32FromChar(&argument); continue; }
705 if (longCommandWArg(&argument, "--zstd=")) { if (!parseCompressionParameters(argument, &compressionParams)) CLEAN_RETURN(badusage(programName)); continue; }
706 if (longCommandWArg(&argument, "--long")) {
707 unsigned ldmWindowLog = 0;
709 /* Parse optional window log */
710 if (*argument == '=') {
712 ldmWindowLog = readU32FromChar(&argument);
713 } else if (*argument != 0) {
714 /* Invalid character following --long */
715 CLEAN_RETURN(badusage(programName));
717 /* Only set windowLog if not already set by --zstd */
718 if (compressionParams.windowLog == 0)
719 compressionParams.windowLog = ldmWindowLog;
722 #ifndef ZSTD_NOCOMPRESS /* linking ZSTD_minCLevel() requires compression support */
723 if (longCommandWArg(&argument, "--fast")) {
724 /* Parse optional acceleration factor */
725 if (*argument == '=') {
726 U32 const maxFast = (U32)-ZSTD_minCLevel();
729 fastLevel = readU32FromChar(&argument);
730 if (fastLevel > maxFast) fastLevel = maxFast;
732 dictCLevel = cLevel = -(int)fastLevel;
734 CLEAN_RETURN(badusage(programName));
736 } else if (*argument != 0) {
737 /* Invalid character following --fast */
738 CLEAN_RETURN(badusage(programName));
740 cLevel = -1; /* default for --fast */
745 /* fall-through, will trigger bad_usage() later on */
749 while (argument[0]!=0) {
751 DISPLAY("error : command must be followed by argument \n");
754 #ifndef ZSTD_NOCOMPRESS
755 /* compression Level */
756 if ((*argument>='0') && (*argument<='9')) {
757 dictCLevel = cLevel = readU32FromChar(&argument);
765 case 'V': g_displayOut=stdout; printVersion(); CLEAN_RETURN(0); /* Version Only */
767 case 'h': g_displayOut=stdout; CLEAN_RETURN(usage_advanced(programName));
770 case 'z': operation=zom_compress; argument++; break;
775 benchParams.mode = BMK_decodeOnly;
776 if (operation==zom_bench) { argument++; break; } /* benchmark decode (hidden option) */
778 operation=zom_decompress; argument++; break;
780 /* Force stdout, even if stdout==console */
781 case 'c': forceStdout=1; outFileName=stdoutmark; argument++; break;
783 /* Use file content as dictionary */
784 case 'D': nextEntryIsDictionary = 1; lastCommand = 1; argument++; break;
787 case 'f': FIO_overwriteMode(); forceStdout=1; followLinks=1; argument++; break;
790 case 'v': g_displayLevel++; argument++; break;
793 case 'q': g_displayLevel--; argument++; break;
795 /* keep source file (default) */
796 case 'k': FIO_setRemoveSrcFile(0); argument++; break;
799 case 'C': FIO_setChecksumFlag(2); argument++; break;
801 /* test compressed file */
802 case 't': operation=zom_test; argument++; break;
804 /* destination file name */
805 case 'o': nextArgumentIsOutFileName=1; lastCommand=1; argument++; break;
807 /* limit decompression memory */
810 memLimit = readU32FromChar(&argument);
812 case 'l': operation=zom_list; argument++; break;
813 #ifdef UTIL_HAS_CREATEFILELIST
815 case 'r': recursive=1; argument++; break;
825 /* range bench (benchmark only) */
827 /* compression Level */
829 cLevelLast = readU32FromChar(&argument);
832 /* Modify Nb Iterations (benchmark only) */
835 bench_nbSeconds = readU32FromChar(&argument);
838 /* cut input into blocks (benchmark only) */
841 blockSize = readU32FromChar(&argument);
844 /* benchmark files separately (hidden option) */
850 #endif /* ZSTD_NOBENCH */
852 /* nb of threads (hidden option) */
855 nbWorkers = readU32FromChar(&argument);
858 /* Dictionary Selection level */
861 dictSelect = readU32FromChar(&argument);
864 /* Pause at the end (-p) or set an additional param (-p#) (hidden option) */
865 case 'p': argument++;
867 if ((*argument>='0') && (*argument<='9')) {
868 benchParams.additionalParam = (int)readU32FromChar(&argument);
874 /* Select compressibility of synthetic sample */
877 compressibility = (double)readU32FromChar(&argument) / 100;
881 /* unknown command */
882 default : CLEAN_RETURN(badusage(programName));
886 } /* if (argument[0]=='-') */
888 if (nextArgumentIsMaxDict) { /* kept available for compatibility with old syntax ; will be removed one day */
889 nextArgumentIsMaxDict = 0;
891 maxDictSize = readU32FromChar(&argument);
895 if (nextArgumentIsDictID) { /* kept available for compatibility with old syntax ; will be removed one day */
896 nextArgumentIsDictID = 0;
898 dictID = readU32FromChar(&argument);
902 } /* if (nextArgumentIsAFile==0) */
904 if (nextEntryIsDictionary) {
905 nextEntryIsDictionary = 0;
907 dictFileName = argument;
911 if (nextArgumentIsOutFileName) {
912 nextArgumentIsOutFileName = 0;
914 outFileName = argument;
915 if (!strcmp(outFileName, "-")) outFileName = stdoutmark;
919 /* add filename to list */
920 filenameTable[filenameIdx++] = argument;
923 if (lastCommand) { /* forgotten argument */
924 DISPLAY("error : command must be followed by argument \n");
928 /* Welcome message (if verbose) */
929 DISPLAYLEVEL(3, WELCOME_MESSAGE);
931 #ifdef ZSTD_MULTITHREAD
932 if ((nbWorkers==0) && (!singleThread)) {
933 /* automatically set # workers based on # of reported cpus */
934 nbWorkers = UTIL_countPhysicalCores();
935 DISPLAYLEVEL(3, "Note: %d physical core(s) detected \n", nbWorkers);
938 (void)singleThread; (void)nbWorkers;
941 #ifdef UTIL_HAS_CREATEFILELIST
942 g_utilDisplayLevel = g_displayLevel;
945 for (u=0, fileNamesNb=0; u<filenameIdx; u++) {
946 if (UTIL_isLink(filenameTable[u])) {
947 DISPLAYLEVEL(2, "Warning : %s is a symbolic link, ignoring\n", filenameTable[u]);
949 filenameTable[fileNamesNb++] = filenameTable[u];
952 filenameIdx = fileNamesNb;
954 if (recursive) { /* at this stage, filenameTable is a list of paths, which can contain both files and directories */
955 extendedFileList = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb, followLinks);
956 if (extendedFileList) {
958 for (u=0; u<fileNamesNb; u++) DISPLAYLEVEL(4, "%u %s\n", u, extendedFileList[u]);
959 free((void*)filenameTable);
960 filenameTable = extendedFileList;
961 filenameIdx = fileNamesNb;
968 if (operation == zom_list) {
969 #ifndef ZSTD_NODECOMPRESS
970 int const ret = FIO_listMultipleFiles(filenameIdx, filenameTable, g_displayLevel);
973 DISPLAY("file information is not supported \n");
978 /* Check if benchmark is selected */
979 if (operation==zom_bench) {
981 benchParams.blockSize = blockSize;
982 benchParams.nbWorkers = nbWorkers;
983 benchParams.realTime = setRealTimePrio;
984 benchParams.nbSeconds = bench_nbSeconds;
985 benchParams.ldmFlag = ldmFlag;
986 benchParams.ldmMinMatch = g_ldmMinMatch;
987 benchParams.ldmHashLog = g_ldmHashLog;
988 if (g_ldmBucketSizeLog != LDM_PARAM_DEFAULT) {
989 benchParams.ldmBucketSizeLog = g_ldmBucketSizeLog;
991 if (g_ldmHashRateLog != LDM_PARAM_DEFAULT) {
992 benchParams.ldmHashRateLog = g_ldmHashRateLog;
995 if (cLevel > ZSTD_maxCLevel()) cLevel = ZSTD_maxCLevel();
996 if (cLevelLast > ZSTD_maxCLevel()) cLevelLast = ZSTD_maxCLevel();
997 if (cLevelLast < cLevel) cLevelLast = cLevel;
998 if (cLevelLast > cLevel)
999 DISPLAYLEVEL(3, "Benchmarking levels from %d to %d\n", cLevel, cLevelLast);
1003 for(i = 0; i < filenameIdx; i++) {
1005 DISPLAYLEVEL(3, "Benchmarking %s \n", filenameTable[i]);
1006 for(c = cLevel; c <= cLevelLast; c++) {
1007 BMK_benchFilesAdvanced(&filenameTable[i], 1, dictFileName, c, &compressionParams, g_displayLevel, &benchParams);
1011 for(; cLevel <= cLevelLast; cLevel++) {
1012 BMK_benchFilesAdvanced(filenameTable, filenameIdx, dictFileName, cLevel, &compressionParams, g_displayLevel, &benchParams);
1016 for(; cLevel <= cLevelLast; cLevel++) {
1017 BMK_syntheticTest(cLevel, compressibility, &compressionParams, g_displayLevel, &benchParams);
1022 (void)bench_nbSeconds; (void)blockSize; (void)setRealTimePrio; (void)separateFiles; (void)compressibility;
1027 /* Check if dictionary builder is selected */
1028 if (operation==zom_train) {
1030 ZDICT_params_t zParams;
1031 zParams.compressionLevel = dictCLevel;
1032 zParams.notificationLevel = g_displayLevel;
1033 zParams.dictID = dictID;
1034 if (dict == cover) {
1035 int const optimize = !coverParams.k || !coverParams.d;
1036 coverParams.nbThreads = nbWorkers;
1037 coverParams.zParams = zParams;
1038 operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, blockSize, NULL, &coverParams, NULL, optimize);
1039 } else if (dict == fastCover) {
1040 int const optimize = !fastCoverParams.k || !fastCoverParams.d;
1041 fastCoverParams.nbThreads = nbWorkers;
1042 fastCoverParams.zParams = zParams;
1043 operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, blockSize, NULL, NULL, &fastCoverParams, optimize);
1045 ZDICT_legacy_params_t dictParams;
1046 memset(&dictParams, 0, sizeof(dictParams));
1047 dictParams.selectivityLevel = dictSelect;
1048 dictParams.zParams = zParams;
1049 operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenameTable, filenameIdx, blockSize, &dictParams, NULL, NULL, 0);
1052 (void)dictCLevel; (void)dictSelect; (void)dictID; (void)maxDictSize; /* not used when ZSTD_NODICT set */
1053 DISPLAYLEVEL(1, "training mode not available \n");
1054 operationResult = 1;
1059 #ifndef ZSTD_NODECOMPRESS
1060 if (operation==zom_test) { outFileName=nulmark; FIO_setRemoveSrcFile(0); } /* test mode */
1063 /* No input filename ==> use stdin and stdout */
1064 filenameIdx += !filenameIdx; /* filenameTable[0] is stdin by default */
1065 if (!strcmp(filenameTable[0], stdinmark) && !outFileName)
1066 outFileName = stdoutmark; /* when input is stdin, default output is stdout */
1068 /* Check if input/output defined as console; trigger an error in this case */
1069 if (!strcmp(filenameTable[0], stdinmark) && IS_CONSOLE(stdin) )
1070 CLEAN_RETURN(badusage(programName));
1071 if ( outFileName && !strcmp(outFileName, stdoutmark)
1072 && IS_CONSOLE(stdout)
1073 && !strcmp(filenameTable[0], stdinmark)
1075 && operation!=zom_decompress )
1076 CLEAN_RETURN(badusage(programName));
1078 #ifndef ZSTD_NOCOMPRESS
1079 /* check compression level limits */
1080 { int const maxCLevel = ultra ? ZSTD_maxCLevel() : ZSTDCLI_CLEVEL_MAX;
1081 if (cLevel > maxCLevel) {
1082 DISPLAYLEVEL(2, "Warning : compression level higher than max, reduced to %i \n", maxCLevel);
1087 /* No status message in pipe mode (stdin - stdout) or multi-files mode */
1088 if (!strcmp(filenameTable[0], stdinmark) && outFileName && !strcmp(outFileName,stdoutmark) && (g_displayLevel==2)) g_displayLevel=1;
1089 if ((filenameIdx>1) & (g_displayLevel==2)) g_displayLevel=1;
1091 /* IO Stream/File */
1092 FIO_setNotificationLevel(g_displayLevel);
1093 if (operation==zom_compress) {
1094 #ifndef ZSTD_NOCOMPRESS
1095 FIO_setNbWorkers(nbWorkers);
1096 FIO_setBlockSize((U32)blockSize);
1097 if (g_overlapLog!=OVERLAP_LOG_DEFAULT) FIO_setOverlapLog(g_overlapLog);
1098 FIO_setLdmFlag(ldmFlag);
1099 FIO_setLdmHashLog(g_ldmHashLog);
1100 FIO_setLdmMinMatch(g_ldmMinMatch);
1101 if (g_ldmBucketSizeLog != LDM_PARAM_DEFAULT) FIO_setLdmBucketSizeLog(g_ldmBucketSizeLog);
1102 if (g_ldmHashRateLog != LDM_PARAM_DEFAULT) FIO_setLdmHashRateLog(g_ldmHashRateLog);
1103 FIO_setAdaptiveMode(adapt);
1104 FIO_setAdaptMin(adaptMin);
1105 FIO_setAdaptMax(adaptMax);
1106 FIO_setRsyncable(rsyncable);
1107 if (adaptMin > cLevel) cLevel = adaptMin;
1108 if (adaptMax < cLevel) cLevel = adaptMax;
1110 if ((filenameIdx==1) && outFileName)
1111 operationResult = FIO_compressFilename(outFileName, filenameTable[0], dictFileName, cLevel, compressionParams);
1113 operationResult = FIO_compressMultipleFilenames(filenameTable, filenameIdx, outFileName, suffix, dictFileName, cLevel, compressionParams);
1115 (void)suffix; (void)adapt; (void)rsyncable; (void)ultra; (void)cLevel; (void)ldmFlag; /* not used when ZSTD_NOCOMPRESS set */
1116 DISPLAY("Compression not supported \n");
1118 } else { /* decompression or test */
1119 #ifndef ZSTD_NODECOMPRESS
1120 if (memLimit == 0) {
1121 if (compressionParams.windowLog == 0)
1122 memLimit = (U32)1 << g_defaultMaxWindowLog;
1124 memLimit = (U32)1 << (compressionParams.windowLog & 31);
1127 FIO_setMemLimit(memLimit);
1128 if (filenameIdx==1 && outFileName)
1129 operationResult = FIO_decompressFilename(outFileName, filenameTable[0], dictFileName);
1131 operationResult = FIO_decompressMultipleFilenames(filenameTable, filenameIdx, outFileName, dictFileName);
1133 DISPLAY("Decompression not supported \n");
1138 if (main_pause) waitEnter();
1139 #ifdef UTIL_HAS_CREATEFILELIST
1140 if (extendedFileList)
1141 UTIL_freeFileList(extendedFileList, fileNamesBuf);
1144 free((void*)filenameTable);
1145 return operationResult;