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v1.4.10
programs/zstdcli.c
1 416 строк
64 KB
Nick Terrell
[copyright][license] Switch to yearless copyright and some cleanup in the linux-kernel files
30 мар 2021, 20:37
30 мар 2021, 20:37
de9de86
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/* * Copyright (c) Yann Collet, Facebook, Inc. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the * LICENSE file in the root directory of this source tree) and the GPLv2 (found * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ /*-************************************ * Tuning parameters **************************************/ #ifndef ZSTDCLI_CLEVEL_DEFAULT # define ZSTDCLI_CLEVEL_DEFAULT 3 #endif #ifndef ZSTDCLI_CLEVEL_MAX # define ZSTDCLI_CLEVEL_MAX 19 /* without using --ultra */ #endif #ifndef ZSTDCLI_NBTHREADS_DEFAULT # define ZSTDCLI_NBTHREADS_DEFAULT 1 #endif /*-************************************ * Dependencies **************************************/ #include "platform.h" /* IS_CONSOLE, PLATFORM_POSIX_VERSION */ #include "util.h" /* UTIL_HAS_CREATEFILELIST, UTIL_createFileList */ #include <stdlib.h> /* getenv */ #include <string.h> /* strcmp, strlen */ #include <stdio.h> /* fprintf(), stdin, stdout, stderr */ #include <errno.h> /* errno */ #include <assert.h> /* assert */ #include "fileio.h" /* stdinmark, stdoutmark, ZSTD_EXTENSION */ #ifndef ZSTD_NOBENCH # include "benchzstd.h" /* BMK_benchFiles */ #endif #ifndef ZSTD_NODICT # include "dibio.h" /* ZDICT_cover_params_t, DiB_trainFromFiles() */ #endif #ifndef ZSTD_NOTRACE # include "zstdcli_trace.h" #endif #include "../lib/zstd.h" /* ZSTD_VERSION_STRING, ZSTD_minCLevel, ZSTD_maxCLevel */ /*-************************************ * Constants **************************************/ #define COMPRESSOR_NAME "zstd command line interface" #ifndef ZSTD_VERSION # define ZSTD_VERSION "v" ZSTD_VERSION_STRING #endif #define AUTHOR "Yann Collet" #define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR #define ZSTD_ZSTDMT "zstdmt" #define ZSTD_UNZSTD "unzstd" #define ZSTD_CAT "zstdcat" #define ZSTD_ZCAT "zcat" #define ZSTD_GZ "gzip" #define ZSTD_GUNZIP "gunzip" #define ZSTD_GZCAT "gzcat" #define ZSTD_LZMA "lzma" #define ZSTD_UNLZMA "unlzma" #define ZSTD_XZ "xz" #define ZSTD_UNXZ "unxz" #define ZSTD_LZ4 "lz4" #define ZSTD_UNLZ4 "unlz4" #define KB *(1 <<10) #define MB *(1 <<20) #define GB *(1U<<30) #define DISPLAY_LEVEL_DEFAULT 2 static const char* g_defaultDictName = "dictionary"; static const unsigned g_defaultMaxDictSize = 110 KB; static const int g_defaultDictCLevel = 3; static const unsigned g_defaultSelectivityLevel = 9; static const unsigned g_defaultMaxWindowLog = 27; #define OVERLAP_LOG_DEFAULT 9999 #define LDM_PARAM_DEFAULT 9999 /* Default for parameters where 0 is valid */ static U32 g_overlapLog = OVERLAP_LOG_DEFAULT; static U32 g_ldmHashLog = 0; static U32 g_ldmMinMatch = 0; static U32 g_ldmHashRateLog = LDM_PARAM_DEFAULT; static U32 g_ldmBucketSizeLog = LDM_PARAM_DEFAULT; #define DEFAULT_ACCEL 1 typedef enum { cover, fastCover, legacy } dictType; /*-************************************ * Display Macros **************************************/ #define DISPLAY_F(f, ...) fprintf((f), __VA_ARGS__) #define DISPLAYOUT(...) DISPLAY_F(stdout, __VA_ARGS__) #define DISPLAY(...) DISPLAY_F(stderr, __VA_ARGS__) #define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } } static int g_displayLevel = DISPLAY_LEVEL_DEFAULT; /* 0 : no display, 1: errors, 2 : + result + interaction + warnings, 3 : + progression, 4 : + information */ /*-************************************ * Check Version (when CLI linked to dynamic library) **************************************/ /* Due to usage of experimental symbols and capabilities by the CLI, * the CLI must be linked against a dynamic library of same version */ static void checkLibVersion(void) { if (strcmp(ZSTD_VERSION_STRING, ZSTD_versionString())) { DISPLAYLEVEL(1, "Error : incorrect library version (expecting : %s ; actual : %s ) \n", ZSTD_VERSION_STRING, ZSTD_versionString()); DISPLAYLEVEL(1, "Please update library to version %s, or use stand-alone zstd binary \n", ZSTD_VERSION_STRING); exit(1); } } /*-************************************ * Command Line **************************************/ /* print help either in `stderr` or `stdout` depending on originating request * error (badusage) => stderr * help (usage_advanced) => stdout */ static void usage(FILE* f, const char* programName) { DISPLAY_F(f, "Usage : \n"); DISPLAY_F(f, " %s [args] [FILE(s)] [-o file] \n", programName); DISPLAY_F(f, "\n"); DISPLAY_F(f, "FILE : a filename \n"); DISPLAY_F(f, " with no FILE, or when FILE is - , read standard input\n"); DISPLAY_F(f, "Arguments : \n"); #ifndef ZSTD_NOCOMPRESS DISPLAY_F(f, " -# : # compression level (1-%d, default: %d) \n", ZSTDCLI_CLEVEL_MAX, ZSTDCLI_CLEVEL_DEFAULT); #endif #ifndef ZSTD_NODECOMPRESS DISPLAY_F(f, " -d : decompression \n"); #endif DISPLAY_F(f, " -D DICT: use DICT as Dictionary for compression or decompression \n"); DISPLAY_F(f, " -o file: result stored into `file` (only 1 output file) \n"); DISPLAY_F(f, " -f : disable input and output checks. Allows overwriting existing files,\n"); DISPLAY_F(f, " input from console, output to stdout, operating on links, etc.\n"); DISPLAY_F(f, "--rm : remove source file(s) after successful de/compression \n"); DISPLAY_F(f, " -k : preserve source file(s) (default) \n"); DISPLAY_F(f, " -h/-H : display help/long help and exit \n"); } static void usage_advanced(const char* programName) { DISPLAYOUT(WELCOME_MESSAGE); usage(stdout, programName); DISPLAYOUT( "\n"); DISPLAYOUT( "Advanced arguments : \n"); DISPLAYOUT( " -V : display Version number and exit \n"); DISPLAYOUT( " -c : force write to standard output, even if it is the console \n"); DISPLAYOUT( " -v : verbose mode; specify multiple times to increase verbosity \n"); DISPLAYOUT( " -q : suppress warnings; specify twice to suppress errors too \n"); DISPLAYOUT( "--no-progress : do not display the progress counter \n"); #ifdef UTIL_HAS_CREATEFILELIST DISPLAYOUT( " -r : operate recursively on directories \n"); DISPLAYOUT( "--filelist FILE : read list of files to operate upon from FILE \n"); DISPLAYOUT( "--output-dir-flat DIR : processed files are stored into DIR \n"); #endif #ifdef UTIL_HAS_MIRRORFILELIST DISPLAYOUT( "--output-dir-mirror DIR : processed files are stored into DIR respecting original directory structure \n"); #endif #ifndef ZSTD_NOCOMPRESS DISPLAYOUT( "--[no-]check : during compression, add XXH64 integrity checksum to frame (default: enabled)"); #ifndef ZSTD_NODECOMPRESS DISPLAYOUT( ". If specified with -d, decompressor will ignore/validate checksums in compressed frame (default: validate)."); #endif #else #ifdef ZSTD_NOCOMPRESS DISPLAYOUT( "--[no-]check : during decompression, ignore/validate checksums in compressed frame (default: validate)."); #endif #endif /* ZSTD_NOCOMPRESS */ #ifndef ZSTD_NOTRACE DISPLAYOUT( "\n"); DISPLAYOUT( "--trace FILE : log tracing information to FILE."); #endif DISPLAYOUT( "\n"); DISPLAYOUT( "-- : All arguments after \"--\" are treated as files \n"); #ifndef ZSTD_NOCOMPRESS DISPLAYOUT( "\n"); DISPLAYOUT( "Advanced compression arguments : \n"); DISPLAYOUT( "--ultra : enable levels beyond %i, up to %i (requires more memory) \n", ZSTDCLI_CLEVEL_MAX, ZSTD_maxCLevel()); DISPLAYOUT( "--long[=#]: enable long distance matching with given window log (default: %u) \n", g_defaultMaxWindowLog); DISPLAYOUT( "--fast[=#]: switch to very fast compression levels (default: %u) \n", 1); DISPLAYOUT( "--adapt : dynamically adapt compression level to I/O conditions \n"); # ifdef ZSTD_MULTITHREAD DISPLAYOUT( " -T# : spawns # compression threads (default: 1, 0==# cores) \n"); DISPLAYOUT( " -B# : select size of each job (default: 0==automatic) \n"); DISPLAYOUT( "--single-thread : use a single thread for both I/O and compression (result slightly different than -T1) \n"); DISPLAYOUT( "--rsyncable : compress using a rsync-friendly method (-B sets block size) \n"); # endif DISPLAYOUT( "--exclude-compressed: only compress files that are not already compressed \n"); DISPLAYOUT( "--stream-size=# : specify size of streaming input from `stdin` \n"); DISPLAYOUT( "--size-hint=# optimize compression parameters for streaming input of approximately this size \n"); DISPLAYOUT( "--target-compressed-block-size=# : generate compressed block of approximately targeted size \n"); DISPLAYOUT( "--no-dictID : don't write dictID into header (dictionary compression only) \n"); DISPLAYOUT( "--[no-]compress-literals : force (un)compressed literals \n"); DISPLAYOUT( "--format=zstd : compress files to the .zst format (default) \n"); #ifdef ZSTD_GZCOMPRESS DISPLAYOUT( "--format=gzip : compress files to the .gz format \n"); #endif #ifdef ZSTD_LZMACOMPRESS DISPLAYOUT( "--format=xz : compress files to the .xz format \n"); DISPLAYOUT( "--format=lzma : compress files to the .lzma format \n"); #endif #ifdef ZSTD_LZ4COMPRESS DISPLAYOUT( "--format=lz4 : compress files to the .lz4 format \n"); #endif #endif /* !ZSTD_NOCOMPRESS */ #ifndef ZSTD_NODECOMPRESS DISPLAYOUT( "\n"); DISPLAYOUT( "Advanced decompression arguments : \n"); DISPLAYOUT( " -l : print information about zstd compressed files \n"); DISPLAYOUT( "--test : test compressed file integrity \n"); DISPLAYOUT( " -M# : Set a memory usage limit for decompression \n"); # if ZSTD_SPARSE_DEFAULT DISPLAYOUT( "--[no-]sparse : sparse mode (default: enabled on file, disabled on stdout) \n"); # else DISPLAYOUT( "--[no-]sparse : sparse mode (default: disabled) \n"); # endif #endif /* ZSTD_NODECOMPRESS */ #ifndef ZSTD_NODICT DISPLAYOUT( "\n"); DISPLAYOUT( "Dictionary builder : \n"); DISPLAYOUT( "--train ## : create a dictionary from a training set of files \n"); DISPLAYOUT( "--train-cover[=k=#,d=#,steps=#,split=#,shrink[=#]] : use the cover algorithm with optional args \n"); DISPLAYOUT( "--train-fastcover[=k=#,d=#,f=#,steps=#,split=#,accel=#,shrink[=#]] : use the fast cover algorithm with optional args \n"); DISPLAYOUT( "--train-legacy[=s=#] : use the legacy algorithm with selectivity (default: %u) \n", g_defaultSelectivityLevel); DISPLAYOUT( " -o DICT : DICT is dictionary name (default: %s) \n", g_defaultDictName); DISPLAYOUT( "--maxdict=# : limit dictionary to specified size (default: %u) \n", g_defaultMaxDictSize); DISPLAYOUT( "--dictID=# : force dictionary ID to specified value (default: random) \n"); #endif #ifndef ZSTD_NOBENCH DISPLAYOUT( "\n"); DISPLAYOUT( "Benchmark arguments : \n"); DISPLAYOUT( " -b# : benchmark file(s), using # compression level (default: %d) \n", ZSTDCLI_CLEVEL_DEFAULT); DISPLAYOUT( " -e# : test all compression levels successively from -b# to -e# (default: 1) \n"); DISPLAYOUT( " -i# : minimum evaluation time in seconds (default: 3s) \n"); DISPLAYOUT( " -B# : cut file into independent blocks of size # (default: no block) \n"); DISPLAYOUT( " -S : output one benchmark result per input file (default: consolidated result) \n"); DISPLAYOUT( "--priority=rt : set process priority to real-time \n"); #endif } static void badusage(const char* programName) { DISPLAYLEVEL(1, "Incorrect parameters \n"); if (g_displayLevel >= 2) usage(stderr, programName); } static void waitEnter(void) { int unused; DISPLAY("Press enter to continue... \n"); unused = getchar(); (void)unused; } static const char* lastNameFromPath(const char* path) { const char* name = path; if (strrchr(name, '/')) name = strrchr(name, '/') + 1; if (strrchr(name, '\\')) name = strrchr(name, '\\') + 1; /* windows */ return name; } /*! exeNameMatch() : @return : a non-zero value if exeName matches test, excluding the extension */ static int exeNameMatch(const char* exeName, const char* test) { return !strncmp(exeName, test, strlen(test)) && (exeName[strlen(test)] == '\0' || exeName[strlen(test)] == '.'); } static void errorOut(const char* msg) { DISPLAY("%s \n", msg); exit(1); } /*! readU32FromCharChecked() : * @return 0 if success, and store the result in *value. * allows and interprets K, KB, KiB, M, MB and MiB suffix. * Will also modify `*stringPtr`, advancing it to position where it stopped reading. * @return 1 if an overflow error occurs */ static int readU32FromCharChecked(const char** stringPtr, unsigned* value) { unsigned result = 0; while ((**stringPtr >='0') && (**stringPtr <='9')) { unsigned const max = ((unsigned)(-1)) / 10; unsigned last = result; if (result > max) return 1; /* overflow error */ result *= 10; result += (unsigned)(**stringPtr - '0'); if (result < last) return 1; /* overflow error */ (*stringPtr)++ ; } if ((**stringPtr=='K') || (**stringPtr=='M')) { unsigned const maxK = ((unsigned)(-1)) >> 10; if (result > maxK) return 1; /* overflow error */ result <<= 10; if (**stringPtr=='M') { if (result > maxK) return 1; /* overflow error */ result <<= 10; } (*stringPtr)++; /* skip `K` or `M` */ if (**stringPtr=='i') (*stringPtr)++; if (**stringPtr=='B') (*stringPtr)++; } *value = result; return 0; } /*! readU32FromChar() : * @return : unsigned integer value read from input in `char` format. * allows and interprets K, KB, KiB, M, MB and MiB suffix. * Will also modify `*stringPtr`, advancing it to position where it stopped reading. * Note : function will exit() program if digit sequence overflows */ static unsigned readU32FromChar(const char** stringPtr) { static const char errorMsg[] = "error: numeric value overflows 32-bit unsigned int"; unsigned result; if (readU32FromCharChecked(stringPtr, &result)) { errorOut(errorMsg); } return result; } /*! readSizeTFromCharChecked() : * @return 0 if success, and store the result in *value. * allows and interprets K, KB, KiB, M, MB and MiB suffix. * Will also modify `*stringPtr`, advancing it to position where it stopped reading. * @return 1 if an overflow error occurs */ static int readSizeTFromCharChecked(const char** stringPtr, size_t* value) { size_t result = 0; while ((**stringPtr >='0') && (**stringPtr <='9')) { size_t const max = ((size_t)(-1)) / 10; size_t last = result; if (result > max) return 1; /* overflow error */ result *= 10; result += (size_t)(**stringPtr - '0'); if (result < last) return 1; /* overflow error */ (*stringPtr)++ ; } if ((**stringPtr=='K') || (**stringPtr=='M')) { size_t const maxK = ((size_t)(-1)) >> 10; if (result > maxK) return 1; /* overflow error */ result <<= 10; if (**stringPtr=='M') { if (result > maxK) return 1; /* overflow error */ result <<= 10; } (*stringPtr)++; /* skip `K` or `M` */ if (**stringPtr=='i') (*stringPtr)++; if (**stringPtr=='B') (*stringPtr)++; } *value = result; return 0; } /*! readSizeTFromChar() : * @return : size_t value read from input in `char` format. * allows and interprets K, KB, KiB, M, MB and MiB suffix. * Will also modify `*stringPtr`, advancing it to position where it stopped reading. * Note : function will exit() program if digit sequence overflows */ static size_t readSizeTFromChar(const char** stringPtr) { static const char errorMsg[] = "error: numeric value overflows size_t"; size_t result; if (readSizeTFromCharChecked(stringPtr, &result)) { errorOut(errorMsg); } 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 int 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; } #ifndef ZSTD_NODICT static const unsigned kDefaultRegression = 1; /** * parseCoverParameters() : * reads cover parameters from *stringPtr (e.g. "--train-cover=k=48,d=8,steps=32") into *params * @return 1 means that cover parameters were correct * @return 0 in case of malformed parameters */ static unsigned parseCoverParameters(const char* stringPtr, ZDICT_cover_params_t* params) { memset(params, 0, sizeof(*params)); for (; ;) { if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "split=")) { unsigned splitPercentage = readU32FromChar(&stringPtr); params->splitPoint = (double)splitPercentage / 100.0; if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "shrink")) { params->shrinkDictMaxRegression = kDefaultRegression; params->shrinkDict = 1; if (stringPtr[0]=='=') { stringPtr++; params->shrinkDictMaxRegression = readU32FromChar(&stringPtr); } if (stringPtr[0]==',') { stringPtr++; continue; } else break; } return 0; } if (stringPtr[0] != 0) return 0; DISPLAYLEVEL(4, "cover: k=%u\nd=%u\nsteps=%u\nsplit=%u\nshrink%u\n", params->k, params->d, params->steps, (unsigned)(params->splitPoint * 100), params->shrinkDictMaxRegression); return 1; } /** * parseFastCoverParameters() : * reads fastcover parameters from *stringPtr (e.g. "--train-fastcover=k=48,d=8,f=20,steps=32,accel=2") into *params * @return 1 means that fastcover parameters were correct * @return 0 in case of malformed parameters */ static unsigned parseFastCoverParameters(const char* stringPtr, ZDICT_fastCover_params_t* params) { memset(params, 0, sizeof(*params)); for (; ;) { if (longCommandWArg(&stringPtr, "k=")) { params->k = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "d=")) { params->d = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "f=")) { params->f = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "steps=")) { params->steps = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "accel=")) { params->accel = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "split=")) { unsigned splitPercentage = readU32FromChar(&stringPtr); params->splitPoint = (double)splitPercentage / 100.0; if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "shrink")) { params->shrinkDictMaxRegression = kDefaultRegression; params->shrinkDict = 1; if (stringPtr[0]=='=') { stringPtr++; params->shrinkDictMaxRegression = readU32FromChar(&stringPtr); } if (stringPtr[0]==',') { stringPtr++; continue; } else break; } return 0; } if (stringPtr[0] != 0) return 0; DISPLAYLEVEL(4, "cover: k=%u\nd=%u\nf=%u\nsteps=%u\nsplit=%u\naccel=%u\nshrink=%u\n", params->k, params->d, params->f, params->steps, (unsigned)(params->splitPoint * 100), params->accel, params->shrinkDictMaxRegression); return 1; } /** * parseLegacyParameters() : * reads legacy dictionary builder parameters from *stringPtr (e.g. "--train-legacy=selectivity=8") into *selectivity * @return 1 means that legacy dictionary builder parameters were correct * @return 0 in case of malformed parameters */ static unsigned parseLegacyParameters(const char* stringPtr, unsigned* selectivity) { if (!longCommandWArg(&stringPtr, "s=") && !longCommandWArg(&stringPtr, "selectivity=")) { return 0; } *selectivity = readU32FromChar(&stringPtr); if (stringPtr[0] != 0) return 0; DISPLAYLEVEL(4, "legacy: selectivity=%u\n", *selectivity); return 1; } static ZDICT_cover_params_t defaultCoverParams(void) { ZDICT_cover_params_t params; memset(¶ms, 0, sizeof(params)); params.d = 8; params.steps = 4; params.splitPoint = 1.0; params.shrinkDict = 0; params.shrinkDictMaxRegression = kDefaultRegression; return params; } static ZDICT_fastCover_params_t defaultFastCoverParams(void) { ZDICT_fastCover_params_t params; memset(¶ms, 0, sizeof(params)); params.d = 8; params.f = 20; params.steps = 4; params.splitPoint = 0.75; /* different from default splitPoint of cover */ params.accel = DEFAULT_ACCEL; params.shrinkDict = 0; params.shrinkDictMaxRegression = kDefaultRegression; return params; } #endif /** parseAdaptParameters() : * reads adapt parameters from *stringPtr (e.g. "--zstd=min=1,max=19) and store them into adaptMinPtr and adaptMaxPtr. * Both adaptMinPtr and adaptMaxPtr must be already allocated and correctly initialized. * There is no guarantee that any of these values will be updated. * @return 1 means that parsing was successful, * @return 0 in case of malformed parameters */ static unsigned parseAdaptParameters(const char* stringPtr, int* adaptMinPtr, int* adaptMaxPtr) { for ( ; ;) { if (longCommandWArg(&stringPtr, "min=")) { *adaptMinPtr = (int)readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "max=")) { *adaptMaxPtr = (int)readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } DISPLAYLEVEL(4, "invalid compression parameter \n"); return 0; } if (stringPtr[0] != 0) return 0; /* check the end of string */ if (*adaptMinPtr > *adaptMaxPtr) { DISPLAYLEVEL(4, "incoherent adaptation limits \n"); return 0; } return 1; } /** parseCompressionParameters() : * reads compression parameters from *stringPtr (e.g. "--zstd=wlog=23,clog=23,hlog=22,slog=6,mml=3,tlen=48,strat=6") into *params * @return 1 means that compression parameters were correct * @return 0 in case of malformed parameters */ static unsigned parseCompressionParameters(const char* stringPtr, ZSTD_compressionParameters* params) { for ( ; ;) { if (longCommandWArg(&stringPtr, "windowLog=") || longCommandWArg(&stringPtr, "wlog=")) { params->windowLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "chainLog=") || longCommandWArg(&stringPtr, "clog=")) { params->chainLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "hashLog=") || longCommandWArg(&stringPtr, "hlog=")) { params->hashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "searchLog=") || longCommandWArg(&stringPtr, "slog=")) { params->searchLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "minMatch=") || longCommandWArg(&stringPtr, "mml=")) { params->minMatch = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "targetLength=") || longCommandWArg(&stringPtr, "tlen=")) { params->targetLength = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "strategy=") || longCommandWArg(&stringPtr, "strat=")) { params->strategy = (ZSTD_strategy)(readU32FromChar(&stringPtr)); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "overlapLog=") || longCommandWArg(&stringPtr, "ovlog=")) { g_overlapLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "ldmHashLog=") || longCommandWArg(&stringPtr, "lhlog=")) { g_ldmHashLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "ldmMinMatch=") || longCommandWArg(&stringPtr, "lmml=")) { g_ldmMinMatch = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "ldmBucketSizeLog=") || longCommandWArg(&stringPtr, "lblog=")) { g_ldmBucketSizeLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "ldmHashRateLog=") || longCommandWArg(&stringPtr, "lhrlog=")) { g_ldmHashRateLog = readU32FromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } DISPLAYLEVEL(4, "invalid compression parameter \n"); return 0; } DISPLAYLEVEL(4, "windowLog=%d, chainLog=%d, hashLog=%d, searchLog=%d \n", params->windowLog, params->chainLog, params->hashLog, params->searchLog); DISPLAYLEVEL(4, "minMatch=%d, targetLength=%d, strategy=%d \n", params->minMatch, params->targetLength, params->strategy); if (stringPtr[0] != 0) return 0; /* check the end of string */ return 1; } static void printVersion(void) { if (g_displayLevel < DISPLAY_LEVEL_DEFAULT) { DISPLAYOUT("%s\n", ZSTD_VERSION_STRING); return; } DISPLAYOUT(WELCOME_MESSAGE); if (g_displayLevel >= 3) { /* format support */ DISPLAYOUT("*** supports: zstd"); #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT>0) && (ZSTD_LEGACY_SUPPORT<8) DISPLAYOUT(", zstd legacy v0.%d+", ZSTD_LEGACY_SUPPORT); #endif #ifdef ZSTD_GZCOMPRESS DISPLAYOUT(", gzip"); #endif #ifdef ZSTD_LZ4COMPRESS DISPLAYOUT(", lz4"); #endif #ifdef ZSTD_LZMACOMPRESS DISPLAYOUT(", lzma, xz "); #endif DISPLAYOUT("\n"); if (g_displayLevel >= 4) { /* posix support */ #ifdef _POSIX_C_SOURCE DISPLAYOUT("_POSIX_C_SOURCE defined: %ldL\n", (long) _POSIX_C_SOURCE); #endif #ifdef _POSIX_VERSION DISPLAYOUT("_POSIX_VERSION defined: %ldL \n", (long) _POSIX_VERSION); #endif #ifdef PLATFORM_POSIX_VERSION DISPLAYOUT("PLATFORM_POSIX_VERSION defined: %ldL\n", (long) PLATFORM_POSIX_VERSION); #endif } } } /* Environment variables for parameter setting */ #define ENV_CLEVEL "ZSTD_CLEVEL" #define ENV_NBTHREADS "ZSTD_NBTHREADS" /* takes lower precedence than directly specifying -T# in the CLI */ /* pick up environment variable */ static int init_cLevel(void) { const char* const env = getenv(ENV_CLEVEL); if (env != NULL) { const char* ptr = env; int sign = 1; if (*ptr == '-') { sign = -1; ptr++; } else if (*ptr == '+') { ptr++; } if ((*ptr>='0') && (*ptr<='9')) { unsigned absLevel; if (readU32FromCharChecked(&ptr, &absLevel)) { DISPLAYLEVEL(2, "Ignore environment variable setting %s=%s: numeric value too large \n", ENV_CLEVEL, env); return ZSTDCLI_CLEVEL_DEFAULT; } else if (*ptr == 0) { return sign * (int)absLevel; } } DISPLAYLEVEL(2, "Ignore environment variable setting %s=%s: not a valid integer value \n", ENV_CLEVEL, env); } return ZSTDCLI_CLEVEL_DEFAULT; } #ifdef ZSTD_MULTITHREAD static unsigned init_nbThreads(void) { const char* const env = getenv(ENV_NBTHREADS); if (env != NULL) { const char* ptr = env; if ((*ptr>='0') && (*ptr<='9')) { unsigned nbThreads; if (readU32FromCharChecked(&ptr, &nbThreads)) { DISPLAYLEVEL(2, "Ignore environment variable setting %s=%s: numeric value too large \n", ENV_NBTHREADS, env); return ZSTDCLI_NBTHREADS_DEFAULT; } else if (*ptr == 0) { return nbThreads; } } DISPLAYLEVEL(2, "Ignore environment variable setting %s=%s: not a valid unsigned value \n", ENV_NBTHREADS, env); } return ZSTDCLI_NBTHREADS_DEFAULT; } #endif #define NEXT_FIELD(ptr) { \ if (*argument == '=') { \ ptr = ++argument; \ argument += strlen(ptr); \ } else { \ argNb++; \ if (argNb >= argCount) { \ DISPLAY("error: missing command argument \n"); \ CLEAN_RETURN(1); \ } \ ptr = argv[argNb]; \ assert(ptr != NULL); \ if (ptr[0]=='-') { \ DISPLAY("error: command cannot be separated from its argument by another command \n"); \ CLEAN_RETURN(1); \ } } } #define NEXT_UINT32(val32) { \ const char* __nb; \ NEXT_FIELD(__nb); \ val32 = readU32FromChar(&__nb); \ } #define ZSTD_NB_STRATEGIES 9 static const char* ZSTD_strategyMap[ZSTD_NB_STRATEGIES + 1] = { "", "ZSTD_fast", "ZSTD_dfast", "ZSTD_greedy", "ZSTD_lazy", "ZSTD_lazy2", "ZSTD_btlazy2", "ZSTD_btopt", "ZSTD_btultra", "ZSTD_btultra2"}; typedef enum { zom_compress, zom_decompress, zom_test, zom_bench, zom_train, zom_list } zstd_operation_mode; #define CLEAN_RETURN(i) { operationResult = (i); goto _end; } #ifdef ZSTD_NOCOMPRESS /* symbols from compression library are not defined and should not be invoked */ # define MINCLEVEL -99 # define MAXCLEVEL 22 #else # define MINCLEVEL ZSTD_minCLevel() # define MAXCLEVEL ZSTD_maxCLevel() #endif int main(int const argCount, const char* argv[]) { int argNb, followLinks = 0, forceStdin = 0, forceStdout = 0, hasStdout = 0, ldmFlag = 0, main_pause = 0, nbWorkers = 0, adapt = 0, adaptMin = MINCLEVEL, adaptMax = MAXCLEVEL, rsyncable = 0, nextArgumentsAreFiles = 0, operationResult = 0, separateFiles = 0, setRealTimePrio = 0, singleThread = 0, showDefaultCParams = 0, ultra=0, contentSize=1; double compressibility = 0.5; unsigned bench_nbSeconds = 3; /* would be better if this value was synchronized from bench */ size_t blockSize = 0; FIO_prefs_t* const prefs = FIO_createPreferences(); FIO_ctx_t* const fCtx = FIO_createContext(); zstd_operation_mode operation = zom_compress; ZSTD_compressionParameters compressionParams; int cLevel = init_cLevel(); int cLevelLast = MINCLEVEL - 1; /* lower than minimum */ unsigned recursive = 0; unsigned memLimit = 0; FileNamesTable* filenames = UTIL_allocateFileNamesTable((size_t)argCount); /* argCount >= 1 */ FileNamesTable* file_of_names = UTIL_allocateFileNamesTable((size_t)argCount); /* argCount >= 1 */ const char* programName = argv[0]; const char* outFileName = NULL; const char* outDirName = NULL; const char* outMirroredDirName = NULL; const char* dictFileName = NULL; const char* patchFromDictFileName = NULL; const char* suffix = ZSTD_EXTENSION; unsigned maxDictSize = g_defaultMaxDictSize; unsigned dictID = 0; size_t streamSrcSize = 0; size_t targetCBlockSize = 0; size_t srcSizeHint = 0; int dictCLevel = g_defaultDictCLevel; unsigned dictSelect = g_defaultSelectivityLevel; #ifndef ZSTD_NODICT ZDICT_cover_params_t coverParams = defaultCoverParams(); ZDICT_fastCover_params_t fastCoverParams = defaultFastCoverParams(); dictType dict = fastCover; #endif #ifndef ZSTD_NOBENCH BMK_advancedParams_t benchParams = BMK_initAdvancedParams(); #endif ZSTD_literalCompressionMode_e literalCompressionMode = ZSTD_lcm_auto; /* init */ checkLibVersion(); (void)recursive; (void)cLevelLast; /* not used when ZSTD_NOBENCH set */ (void)memLimit; assert(argCount >= 1); if ((filenames==NULL) || (file_of_names==NULL)) { DISPLAY("zstd: allocation error \n"); exit(1); } programName = lastNameFromPath(programName); #ifdef ZSTD_MULTITHREAD nbWorkers = init_nbThreads(); #endif /* preset behaviors */ if (exeNameMatch(programName, ZSTD_ZSTDMT)) nbWorkers=0, singleThread=0; if (exeNameMatch(programName, ZSTD_UNZSTD)) operation=zom_decompress; if (exeNameMatch(programName, ZSTD_CAT)) { operation=zom_decompress; FIO_overwriteMode(prefs); forceStdout=1; followLinks=1; outFileName=stdoutmark; g_displayLevel=1; } /* supports multiple formats */ if (exeNameMatch(programName, ZSTD_ZCAT)) { operation=zom_decompress; FIO_overwriteMode(prefs); forceStdout=1; followLinks=1; outFileName=stdoutmark; g_displayLevel=1; } /* behave like zcat, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_GZ)) { suffix = GZ_EXTENSION; FIO_setCompressionType(prefs, FIO_gzipCompression); FIO_setRemoveSrcFile(prefs, 1); } /* behave like gzip */ if (exeNameMatch(programName, ZSTD_GUNZIP)) { operation=zom_decompress; FIO_setRemoveSrcFile(prefs, 1); } /* behave like gunzip, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_GZCAT)) { operation=zom_decompress; FIO_overwriteMode(prefs); forceStdout=1; followLinks=1; outFileName=stdoutmark; g_displayLevel=1; } /* behave like gzcat, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_LZMA)) { suffix = LZMA_EXTENSION; FIO_setCompressionType(prefs, FIO_lzmaCompression); FIO_setRemoveSrcFile(prefs, 1); } /* behave like lzma */ if (exeNameMatch(programName, ZSTD_UNLZMA)) { operation=zom_decompress; FIO_setCompressionType(prefs, FIO_lzmaCompression); FIO_setRemoveSrcFile(prefs, 1); } /* behave like unlzma, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_XZ)) { suffix = XZ_EXTENSION; FIO_setCompressionType(prefs, FIO_xzCompression); FIO_setRemoveSrcFile(prefs, 1); } /* behave like xz */ if (exeNameMatch(programName, ZSTD_UNXZ)) { operation=zom_decompress; FIO_setCompressionType(prefs, FIO_xzCompression); FIO_setRemoveSrcFile(prefs, 1); } /* behave like unxz, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_LZ4)) { suffix = LZ4_EXTENSION; FIO_setCompressionType(prefs, FIO_lz4Compression); } /* behave like lz4 */ if (exeNameMatch(programName, ZSTD_UNLZ4)) { operation=zom_decompress; FIO_setCompressionType(prefs, FIO_lz4Compression); } /* behave like unlz4, also supports multiple formats */ memset(&compressionParams, 0, sizeof(compressionParams)); /* init crash handler */ FIO_addAbortHandler(); /* command switches */ for (argNb=1; argNb<argCount; argNb++) { const char* argument = argv[argNb]; if (!argument) continue; /* Protection if argument empty */ if (nextArgumentsAreFiles) { UTIL_refFilename(filenames, argument); continue; } /* "-" means stdin/stdout */ if (!strcmp(argument, "-")){ UTIL_refFilename(filenames, stdinmark); continue; } /* Decode commands (note : aggregated commands are allowed) */ if (argument[0]=='-') { if (argument[1]=='-') { /* long commands (--long-word) */ if (!strcmp(argument, "--")) { nextArgumentsAreFiles=1; continue; } /* only file names allowed from now on */ if (!strcmp(argument, "--list")) { operation=zom_list; continue; } if (!strcmp(argument, "--compress")) { operation=zom_compress; continue; } if (!strcmp(argument, "--decompress")) { operation=zom_decompress; continue; } if (!strcmp(argument, "--uncompress")) { operation=zom_decompress; continue; } if (!strcmp(argument, "--force")) { FIO_overwriteMode(prefs); forceStdin=1; forceStdout=1; followLinks=1; continue; } if (!strcmp(argument, "--version")) { printVersion(); CLEAN_RETURN(0); } if (!strcmp(argument, "--help")) { usage_advanced(programName); CLEAN_RETURN(0); } if (!strcmp(argument, "--verbose")) { g_displayLevel++; continue; } if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; } if (!strcmp(argument, "--stdout")) { forceStdout=1; outFileName=stdoutmark; g_displayLevel-=(g_displayLevel==2); continue; } if (!strcmp(argument, "--ultra")) { ultra=1; continue; } if (!strcmp(argument, "--check")) { FIO_setChecksumFlag(prefs, 2); continue; } if (!strcmp(argument, "--no-check")) { FIO_setChecksumFlag(prefs, 0); continue; } if (!strcmp(argument, "--sparse")) { FIO_setSparseWrite(prefs, 2); continue; } if (!strcmp(argument, "--no-sparse")) { FIO_setSparseWrite(prefs, 0); continue; } if (!strcmp(argument, "--test")) { operation=zom_test; continue; } if (!strcmp(argument, "--train")) { operation=zom_train; if (outFileName==NULL) outFileName=g_defaultDictName; continue; } if (!strcmp(argument, "--no-dictID")) { FIO_setDictIDFlag(prefs, 0); continue; } if (!strcmp(argument, "--keep")) { FIO_setRemoveSrcFile(prefs, 0); continue; } if (!strcmp(argument, "--rm")) { FIO_setRemoveSrcFile(prefs, 1); continue; } if (!strcmp(argument, "--priority=rt")) { setRealTimePrio = 1; continue; } if (!strcmp(argument, "--show-default-cparams")) { showDefaultCParams = 1; continue; } if (!strcmp(argument, "--content-size")) { contentSize = 1; continue; } if (!strcmp(argument, "--no-content-size")) { contentSize = 0; continue; } if (!strcmp(argument, "--adapt")) { adapt = 1; continue; } if (longCommandWArg(&argument, "--adapt=")) { adapt = 1; if (!parseAdaptParameters(argument, &adaptMin, &adaptMax)) { badusage(programName); CLEAN_RETURN(1); } continue; } if (!strcmp(argument, "--single-thread")) { nbWorkers = 0; singleThread = 1; continue; } if (!strcmp(argument, "--format=zstd")) { suffix = ZSTD_EXTENSION; FIO_setCompressionType(prefs, FIO_zstdCompression); continue; } #ifdef ZSTD_GZCOMPRESS if (!strcmp(argument, "--format=gzip")) { suffix = GZ_EXTENSION; FIO_setCompressionType(prefs, FIO_gzipCompression); continue; } #endif #ifdef ZSTD_LZMACOMPRESS if (!strcmp(argument, "--format=lzma")) { suffix = LZMA_EXTENSION; FIO_setCompressionType(prefs, FIO_lzmaCompression); continue; } if (!strcmp(argument, "--format=xz")) { suffix = XZ_EXTENSION; FIO_setCompressionType(prefs, FIO_xzCompression); continue; } #endif #ifdef ZSTD_LZ4COMPRESS if (!strcmp(argument, "--format=lz4")) { suffix = LZ4_EXTENSION; FIO_setCompressionType(prefs, FIO_lz4Compression); continue; } #endif if (!strcmp(argument, "--rsyncable")) { rsyncable = 1; continue; } if (!strcmp(argument, "--compress-literals")) { literalCompressionMode = ZSTD_lcm_huffman; continue; } if (!strcmp(argument, "--no-compress-literals")) { literalCompressionMode = ZSTD_lcm_uncompressed; continue; } if (!strcmp(argument, "--no-progress")) { FIO_setNoProgress(1); continue; } if (!strcmp(argument, "--exclude-compressed")) { FIO_setExcludeCompressedFile(prefs, 1); continue; } /* long commands with arguments */ #ifndef ZSTD_NODICT if (longCommandWArg(&argument, "--train-cover")) { operation = zom_train; if (outFileName == NULL) outFileName = g_defaultDictName; dict = cover; /* Allow optional arguments following an = */ if (*argument == 0) { memset(&coverParams, 0, sizeof(coverParams)); } else if (*argument++ != '=') { badusage(programName); CLEAN_RETURN(1); } else if (!parseCoverParameters(argument, &coverParams)) { badusage(programName); CLEAN_RETURN(1); } continue; } if (longCommandWArg(&argument, "--train-fastcover")) { operation = zom_train; if (outFileName == NULL) outFileName = g_defaultDictName; dict = fastCover; /* Allow optional arguments following an = */ if (*argument == 0) { memset(&fastCoverParams, 0, sizeof(fastCoverParams)); } else if (*argument++ != '=') { badusage(programName); CLEAN_RETURN(1); } else if (!parseFastCoverParameters(argument, &fastCoverParams)) { badusage(programName); CLEAN_RETURN(1); } continue; } if (longCommandWArg(&argument, "--train-legacy")) { operation = zom_train; if (outFileName == NULL) outFileName = g_defaultDictName; dict = legacy; /* Allow optional arguments following an = */ if (*argument == 0) { continue; } else if (*argument++ != '=') { badusage(programName); CLEAN_RETURN(1); } else if (!parseLegacyParameters(argument, &dictSelect)) { badusage(programName); CLEAN_RETURN(1); } continue; } #endif if (longCommandWArg(&argument, "--threads")) { NEXT_UINT32(nbWorkers); continue; } if (longCommandWArg(&argument, "--memlimit")) { NEXT_UINT32(memLimit); continue; } if (longCommandWArg(&argument, "--memory")) { NEXT_UINT32(memLimit); continue; } if (longCommandWArg(&argument, "--memlimit-decompress")) { NEXT_UINT32(memLimit); continue; } if (longCommandWArg(&argument, "--block-size=")) { blockSize = readSizeTFromChar(&argument); continue; } if (longCommandWArg(&argument, "--maxdict")) { NEXT_UINT32(maxDictSize); continue; } if (longCommandWArg(&argument, "--dictID")) { NEXT_UINT32(dictID); continue; } if (longCommandWArg(&argument, "--zstd=")) { if (!parseCompressionParameters(argument, &compressionParams)) { badusage(programName); CLEAN_RETURN(1); } continue; } if (longCommandWArg(&argument, "--stream-size=")) { streamSrcSize = readSizeTFromChar(&argument); continue; } if (longCommandWArg(&argument, "--target-compressed-block-size=")) { targetCBlockSize = readSizeTFromChar(&argument); continue; } if (longCommandWArg(&argument, "--size-hint=")) { srcSizeHint = readSizeTFromChar(&argument); continue; } if (longCommandWArg(&argument, "--output-dir-flat")) { NEXT_FIELD(outDirName); continue; } #ifdef UTIL_HAS_MIRRORFILELIST if (longCommandWArg(&argument, "--output-dir-mirror")) { NEXT_FIELD(outMirroredDirName); continue; } #endif #ifndef ZSTD_NOTRACE if (longCommandWArg(&argument, "--trace")) { char const* traceFile; NEXT_FIELD(traceFile); TRACE_enable(traceFile); continue; } #endif if (longCommandWArg(&argument, "--patch-from")) { NEXT_FIELD(patchFromDictFileName); continue; } if (longCommandWArg(&argument, "--long")) { unsigned ldmWindowLog = 0; ldmFlag = 1; /* Parse optional window log */ if (*argument == '=') { ++argument; ldmWindowLog = readU32FromChar(&argument); } else if (*argument != 0) { /* Invalid character following --long */ badusage(programName); CLEAN_RETURN(1); } /* Only set windowLog if not already set by --zstd */ if (compressionParams.windowLog == 0) compressionParams.windowLog = ldmWindowLog; continue; } #ifndef ZSTD_NOCOMPRESS /* linking ZSTD_minCLevel() requires compression support */ if (longCommandWArg(&argument, "--fast")) { /* Parse optional acceleration factor */ if (*argument == '=') { U32 const maxFast = (U32)-ZSTD_minCLevel(); U32 fastLevel; ++argument; fastLevel = readU32FromChar(&argument); if (fastLevel > maxFast) fastLevel = maxFast; if (fastLevel) { dictCLevel = cLevel = -(int)fastLevel; } else { badusage(programName); CLEAN_RETURN(1); } } else if (*argument != 0) { /* Invalid character following --fast */ badusage(programName); CLEAN_RETURN(1); } else { cLevel = -1; /* default for --fast */ } continue; } #endif if (longCommandWArg(&argument, "--filelist")) { const char* listName; NEXT_FIELD(listName); UTIL_refFilename(file_of_names, listName); continue; } /* fall-through, will trigger bad_usage() later on */ } argument++; while (argument[0]!=0) { #ifndef ZSTD_NOCOMPRESS /* compression Level */ if ((*argument>='0') && (*argument<='9')) { dictCLevel = cLevel = (int)readU32FromChar(&argument); continue; } #endif switch(argument[0]) { /* Display help */ case 'V': printVersion(); CLEAN_RETURN(0); /* Version Only */ case 'H': case 'h': usage_advanced(programName); CLEAN_RETURN(0); /* Compress */ case 'z': operation=zom_compress; argument++; break; /* Decoding */ case 'd': #ifndef ZSTD_NOBENCH benchParams.mode = BMK_decodeOnly; if (operation==zom_bench) { argument++; break; } /* benchmark decode (hidden option) */ #endif operation=zom_decompress; argument++; break; /* Force stdout, even if stdout==console */ case 'c': forceStdout=1; outFileName=stdoutmark; argument++; break; /* Use file content as dictionary */ case 'D': argument++; NEXT_FIELD(dictFileName); break; /* Overwrite */ case 'f': FIO_overwriteMode(prefs); forceStdin=1; forceStdout=1; followLinks=1; argument++; break; /* Verbose mode */ case 'v': g_displayLevel++; argument++; break; /* Quiet mode */ case 'q': g_displayLevel--; argument++; break; /* keep source file (default) */ case 'k': FIO_setRemoveSrcFile(prefs, 0); argument++; break; /* Checksum */ case 'C': FIO_setChecksumFlag(prefs, 2); argument++; break; /* test compressed file */ case 't': operation=zom_test; argument++; break; /* destination file name */ case 'o': argument++; NEXT_FIELD(outFileName); break; /* limit memory */ case 'M': argument++; memLimit = readU32FromChar(&argument); break; case 'l': operation=zom_list; argument++; break; #ifdef UTIL_HAS_CREATEFILELIST /* recursive */ case 'r': recursive=1; argument++; break; #endif #ifndef ZSTD_NOBENCH /* Benchmark */ case 'b': operation=zom_bench; argument++; break; /* range bench (benchmark only) */ case 'e': /* compression Level */ argument++; cLevelLast = (int)readU32FromChar(&argument); break; /* Modify Nb Iterations (benchmark only) */ case 'i': argument++; bench_nbSeconds = readU32FromChar(&argument); break; /* cut input into blocks (benchmark only) */ case 'B': argument++; blockSize = readU32FromChar(&argument); break; /* benchmark files separately (hidden option) */ case 'S': argument++; separateFiles = 1; break; #endif /* ZSTD_NOBENCH */ /* nb of threads (hidden option) */ case 'T': argument++; nbWorkers = (int)readU32FromChar(&argument); break; /* Dictionary Selection level */ case 's': argument++; dictSelect = readU32FromChar(&argument); break; /* Pause at the end (-p) or set an additional param (-p#) (hidden option) */ case 'p': argument++; #ifndef ZSTD_NOBENCH if ((*argument>='0') && (*argument<='9')) { benchParams.additionalParam = (int)readU32FromChar(&argument); } else #endif main_pause=1; break; /* Select compressibility of synthetic sample */ case 'P': argument++; compressibility = (double)readU32FromChar(&argument) / 100; break; /* unknown command */ default : badusage(programName); CLEAN_RETURN(1); } } continue; } /* if (argument[0]=='-') */ /* none of the above : add filename to list */ UTIL_refFilename(filenames, argument); } /* Welcome message (if verbose) */ DISPLAYLEVEL(3, WELCOME_MESSAGE); #ifdef ZSTD_MULTITHREAD if ((nbWorkers==0) && (!singleThread)) { /* automatically set # workers based on # of reported cpus */ nbWorkers = UTIL_countPhysicalCores(); DISPLAYLEVEL(3, "Note: %d physical core(s) detected \n", nbWorkers); } #else (void)singleThread; (void)nbWorkers; #endif #ifdef UTIL_HAS_CREATEFILELIST g_utilDisplayLevel = g_displayLevel; if (!followLinks) { unsigned u, fileNamesNb; unsigned const nbFilenames = (unsigned)filenames->tableSize; for (u=0, fileNamesNb=0; u<nbFilenames; u++) { if ( UTIL_isLink(filenames->fileNames[u]) && !UTIL_isFIFO(filenames->fileNames[u]) ) { DISPLAYLEVEL(2, "Warning : %s is a symbolic link, ignoring \n", filenames->fileNames[u]); } else { filenames->fileNames[fileNamesNb++] = filenames->fileNames[u]; } } if (fileNamesNb == 0 && nbFilenames > 0) /* all names are eliminated */ CLEAN_RETURN(1); filenames->tableSize = fileNamesNb; } /* if (!followLinks) */ /* read names from a file */ if (file_of_names->tableSize) { size_t const nbFileLists = file_of_names->tableSize; size_t flNb; for (flNb=0; flNb < nbFileLists; flNb++) { FileNamesTable* const fnt = UTIL_createFileNamesTable_fromFileName(file_of_names->fileNames[flNb]); if (fnt==NULL) { DISPLAYLEVEL(1, "zstd: error reading %s \n", file_of_names->fileNames[flNb]); CLEAN_RETURN(1); } filenames = UTIL_mergeFileNamesTable(filenames, fnt); } } if (recursive) { /* at this stage, filenameTable is a list of paths, which can contain both files and directories */ UTIL_expandFNT(&filenames, followLinks); } #else (void)followLinks; #endif if (operation == zom_list) { #ifndef ZSTD_NODECOMPRESS int const ret = FIO_listMultipleFiles((unsigned)filenames->tableSize, filenames->fileNames, g_displayLevel); CLEAN_RETURN(ret); #else DISPLAY("file information is not supported \n"); CLEAN_RETURN(1); #endif } /* Check if benchmark is selected */ if (operation==zom_bench) { #ifndef ZSTD_NOBENCH benchParams.blockSize = blockSize; benchParams.nbWorkers = nbWorkers; benchParams.realTime = (unsigned)setRealTimePrio; benchParams.nbSeconds = bench_nbSeconds; benchParams.ldmFlag = ldmFlag; benchParams.ldmMinMatch = (int)g_ldmMinMatch; benchParams.ldmHashLog = (int)g_ldmHashLog; if (g_ldmBucketSizeLog != LDM_PARAM_DEFAULT) { benchParams.ldmBucketSizeLog = (int)g_ldmBucketSizeLog; } if (g_ldmHashRateLog != LDM_PARAM_DEFAULT) { benchParams.ldmHashRateLog = (int)g_ldmHashRateLog; } benchParams.literalCompressionMode = literalCompressionMode; if (cLevel > ZSTD_maxCLevel()) cLevel = ZSTD_maxCLevel(); if (cLevelLast > ZSTD_maxCLevel()) cLevelLast = ZSTD_maxCLevel(); if (cLevelLast < cLevel) cLevelLast = cLevel; if (cLevelLast > cLevel) DISPLAYLEVEL(3, "Benchmarking levels from %d to %d\n", cLevel, cLevelLast); if (filenames->tableSize > 0) { if(separateFiles) { unsigned i; for(i = 0; i < filenames->tableSize; i++) { int c; DISPLAYLEVEL(3, "Benchmarking %s \n", filenames->fileNames[i]); for(c = cLevel; c <= cLevelLast; c++) { BMK_benchFilesAdvanced(&filenames->fileNames[i], 1, dictFileName, c, &compressionParams, g_displayLevel, &benchParams); } } } else { for(; cLevel <= cLevelLast; cLevel++) { BMK_benchFilesAdvanced(filenames->fileNames, (unsigned)filenames->tableSize, dictFileName, cLevel, &compressionParams, g_displayLevel, &benchParams); } } } else { for(; cLevel <= cLevelLast; cLevel++) { BMK_syntheticTest(cLevel, compressibility, &compressionParams, g_displayLevel, &benchParams); } } #else (void)bench_nbSeconds; (void)blockSize; (void)setRealTimePrio; (void)separateFiles; (void)compressibility; #endif goto _end; } /* Check if dictionary builder is selected */ if (operation==zom_train) { #ifndef ZSTD_NODICT ZDICT_params_t zParams; zParams.compressionLevel = dictCLevel; zParams.notificationLevel = (unsigned)g_displayLevel; zParams.dictID = dictID; if (dict == cover) { int const optimize = !coverParams.k || !coverParams.d; coverParams.nbThreads = (unsigned)nbWorkers; coverParams.zParams = zParams; operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenames->fileNames, (unsigned)filenames->tableSize, blockSize, NULL, &coverParams, NULL, optimize); } else if (dict == fastCover) { int const optimize = !fastCoverParams.k || !fastCoverParams.d; fastCoverParams.nbThreads = (unsigned)nbWorkers; fastCoverParams.zParams = zParams; operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenames->fileNames, (unsigned)filenames->tableSize, blockSize, NULL, NULL, &fastCoverParams, optimize); } else { ZDICT_legacy_params_t dictParams; memset(&dictParams, 0, sizeof(dictParams)); dictParams.selectivityLevel = dictSelect; dictParams.zParams = zParams; operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenames->fileNames, (unsigned)filenames->tableSize, blockSize, &dictParams, NULL, NULL, 0); } #else (void)dictCLevel; (void)dictSelect; (void)dictID; (void)maxDictSize; /* not used when ZSTD_NODICT set */ DISPLAYLEVEL(1, "training mode not available \n"); operationResult = 1; #endif goto _end; } #ifndef ZSTD_NODECOMPRESS if (operation==zom_test) { FIO_setTestMode(prefs, 1); outFileName=nulmark; FIO_setRemoveSrcFile(prefs, 0); } /* test mode */ #endif /* No input filename ==> use stdin and stdout */ if (filenames->tableSize == 0) UTIL_refFilename(filenames, stdinmark); if (!strcmp(filenames->fileNames[0], stdinmark) && !outFileName) outFileName = stdoutmark; /* when input is stdin, default output is stdout */ /* Check if input/output defined as console; trigger an error in this case */ if (!forceStdin && !strcmp(filenames->fileNames[0], stdinmark) && IS_CONSOLE(stdin) ) { DISPLAYLEVEL(1, "stdin is a console, aborting\n"); CLEAN_RETURN(1); } if ( outFileName && !strcmp(outFileName, stdoutmark) && IS_CONSOLE(stdout) && !strcmp(filenames->fileNames[0], stdinmark) && !forceStdout && operation!=zom_decompress ) { DISPLAYLEVEL(1, "stdout is a console, aborting\n"); CLEAN_RETURN(1); } #ifndef ZSTD_NOCOMPRESS /* check compression level limits */ { int const maxCLevel = ultra ? ZSTD_maxCLevel() : ZSTDCLI_CLEVEL_MAX; if (cLevel > maxCLevel) { DISPLAYLEVEL(2, "Warning : compression level higher than max, reduced to %i \n", maxCLevel); cLevel = maxCLevel; } } #endif if (showDefaultCParams) { if (operation == zom_decompress) { DISPLAY("error : can't use --show-default-cparams in decomrpession mode \n"); CLEAN_RETURN(1); } } if (dictFileName != NULL && patchFromDictFileName != NULL) { DISPLAY("error : can't use -D and --patch-from=# at the same time \n"); CLEAN_RETURN(1); } if (patchFromDictFileName != NULL && filenames->tableSize > 1) { DISPLAY("error : can't use --patch-from=# on multiple files \n"); CLEAN_RETURN(1); } /* No status message in pipe mode (stdin - stdout) */ hasStdout = outFileName && !strcmp(outFileName,stdoutmark); if (hasStdout && (g_displayLevel==2)) g_displayLevel=1; /* IO Stream/File */ FIO_setHasStdoutOutput(fCtx, hasStdout); FIO_setNbFilesTotal(fCtx, (int)filenames->tableSize); FIO_determineHasStdinInput(fCtx, filenames); FIO_setNotificationLevel(g_displayLevel); FIO_setPatchFromMode(prefs, patchFromDictFileName != NULL); if (memLimit == 0) { if (compressionParams.windowLog == 0) { memLimit = (U32)1 << g_defaultMaxWindowLog; } else { memLimit = (U32)1 << (compressionParams.windowLog & 31); } } if (patchFromDictFileName != NULL) dictFileName = patchFromDictFileName; FIO_setMemLimit(prefs, memLimit); if (operation==zom_compress) { #ifndef ZSTD_NOCOMPRESS FIO_setContentSize(prefs, contentSize); FIO_setNbWorkers(prefs, nbWorkers); FIO_setBlockSize(prefs, (int)blockSize); if (g_overlapLog!=OVERLAP_LOG_DEFAULT) FIO_setOverlapLog(prefs, (int)g_overlapLog); FIO_setLdmFlag(prefs, (unsigned)ldmFlag); FIO_setLdmHashLog(prefs, (int)g_ldmHashLog); FIO_setLdmMinMatch(prefs, (int)g_ldmMinMatch); if (g_ldmBucketSizeLog != LDM_PARAM_DEFAULT) FIO_setLdmBucketSizeLog(prefs, (int)g_ldmBucketSizeLog); if (g_ldmHashRateLog != LDM_PARAM_DEFAULT) FIO_setLdmHashRateLog(prefs, (int)g_ldmHashRateLog); FIO_setAdaptiveMode(prefs, (unsigned)adapt); FIO_setAdaptMin(prefs, adaptMin); FIO_setAdaptMax(prefs, adaptMax); FIO_setRsyncable(prefs, rsyncable); FIO_setStreamSrcSize(prefs, streamSrcSize); FIO_setTargetCBlockSize(prefs, targetCBlockSize); FIO_setSrcSizeHint(prefs, srcSizeHint); FIO_setLiteralCompressionMode(prefs, literalCompressionMode); if (adaptMin > cLevel) cLevel = adaptMin; if (adaptMax < cLevel) cLevel = adaptMax; /* Compare strategies constant with the ground truth */ { ZSTD_bounds strategyBounds = ZSTD_cParam_getBounds(ZSTD_c_strategy); assert(ZSTD_NB_STRATEGIES == strategyBounds.upperBound); (void)strategyBounds; } if (showDefaultCParams) { size_t fileNb; for (fileNb = 0; fileNb < (size_t)filenames->tableSize; fileNb++) { unsigned long long fileSize = UTIL_getFileSize(filenames->fileNames[fileNb]); const size_t dictSize = dictFileName != NULL ? (size_t)UTIL_getFileSize(dictFileName) : 0; const ZSTD_compressionParameters cParams = ZSTD_getCParams(cLevel, fileSize, dictSize); if (fileSize != UTIL_FILESIZE_UNKNOWN) DISPLAY("%s (%u bytes)\n", filenames->fileNames[fileNb], (unsigned)fileSize); else DISPLAY("%s (src size unknown)\n", filenames->fileNames[fileNb]); DISPLAY(" - windowLog : %u\n", cParams.windowLog); DISPLAY(" - chainLog : %u\n", cParams.chainLog); DISPLAY(" - hashLog : %u\n", cParams.hashLog); DISPLAY(" - searchLog : %u\n", cParams.searchLog); DISPLAY(" - minMatch : %u\n", cParams.minMatch); DISPLAY(" - targetLength : %u\n", cParams.targetLength); assert(cParams.strategy < ZSTD_NB_STRATEGIES + 1); DISPLAY(" - strategy : %s (%u)\n", ZSTD_strategyMap[(int)cParams.strategy], (unsigned)cParams.strategy); } } if ((filenames->tableSize==1) && outFileName) operationResult = FIO_compressFilename(fCtx, prefs, outFileName, filenames->fileNames[0], dictFileName, cLevel, compressionParams); else operationResult = FIO_compressMultipleFilenames(fCtx, prefs, filenames->fileNames, outMirroredDirName, outDirName, outFileName, suffix, dictFileName, cLevel, compressionParams); #else (void)contentSize; (void)suffix; (void)adapt; (void)rsyncable; (void)ultra; (void)cLevel; (void)ldmFlag; (void)literalCompressionMode; (void)targetCBlockSize; (void)streamSrcSize; (void)srcSizeHint; (void)ZSTD_strategyMap; /* not used when ZSTD_NOCOMPRESS set */ DISPLAY("Compression not supported \n"); #endif } else { /* decompression or test */ #ifndef ZSTD_NODECOMPRESS if (filenames->tableSize == 1 && outFileName) { operationResult = FIO_decompressFilename(fCtx, prefs, outFileName, filenames->fileNames[0], dictFileName); } else { operationResult = FIO_decompressMultipleFilenames(fCtx, prefs, filenames->fileNames, outMirroredDirName, outDirName, outFileName, dictFileName); } #else DISPLAY("Decompression not supported \n"); #endif } _end: FIO_freePreferences(prefs); FIO_freeContext(fCtx); if (main_pause) waitEnter(); UTIL_freeFileNamesTable(filenames); UTIL_freeFileNamesTable(file_of_names); #ifndef ZSTD_NOTRACE TRACE_finish(); #endif return operationResult; }