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v1.5.6
programs/zstdcli.c
1 625 строк
75 KB
Yann Collet
added tests
11 мар 2024, 22:17
11 мар 2024, 22:17
fbd9e62
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/* * Copyright (c) Meta Platforms, Inc. and affiliates. * 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" /* PLATFORM_POSIX_VERSION */ #include "util.h" /* UTIL_HAS_CREATEFILELIST, UTIL_createFileList, UTIL_isConsole */ #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_benchFilesAdvanced */ #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 */ #include "fileio_asyncio.h" /*-************************************ * Constants **************************************/ #define COMPRESSOR_NAME "Zstandard CLI" #ifndef ZSTD_VERSION # define ZSTD_VERSION "v" ZSTD_VERSION_STRING #endif #define AUTHOR "Yann Collet" #define WELCOME_MESSAGE "*** %s (%i-bit) %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); } } /*! 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)] == '.'); } /*-************************************ * Command Line **************************************/ /* print help either in `stderr` or `stdout` depending on originating request * error (badUsage) => stderr * help (usageAdvanced) => stdout */ static void usage(FILE* f, const char* programName) { DISPLAY_F(f, "Compress or decompress the INPUT file(s); reads from STDIN if INPUT is `-` or not provided.\n\n"); DISPLAY_F(f, "Usage: %s [OPTIONS...] [INPUT... | -] [-o OUTPUT]\n\n", programName); DISPLAY_F(f, "Options:\n"); DISPLAY_F(f, " -o OUTPUT Write output to a single file, OUTPUT.\n"); DISPLAY_F(f, " -k, --keep Preserve INPUT file(s). [Default] \n"); DISPLAY_F(f, " --rm Remove INPUT file(s) after successful (de)compression.\n"); #ifdef ZSTD_GZCOMPRESS if (exeNameMatch(programName, ZSTD_GZ)) { /* behave like gzip */ DISPLAY_F(f, " -n, --no-name Do not store original filename when compressing.\n\n"); } #endif DISPLAY_F(f, "\n"); #ifndef ZSTD_NOCOMPRESS DISPLAY_F(f, " -# Desired compression level, where `#` is a number between 1 and %d;\n", ZSTDCLI_CLEVEL_MAX); DISPLAY_F(f, " lower numbers provide faster compression, higher numbers yield\n"); DISPLAY_F(f, " better compression ratios. [Default: %d]\n\n", ZSTDCLI_CLEVEL_DEFAULT); #endif #ifndef ZSTD_NODECOMPRESS DISPLAY_F(f, " -d, --decompress Perform decompression.\n"); #endif DISPLAY_F(f, " -D DICT Use DICT as the dictionary for compression or decompression.\n\n"); DISPLAY_F(f, " -f, --force Disable input and output checks. Allows overwriting existing files,\n"); DISPLAY_F(f, " receiving input from the console, printing output to STDOUT, and\n"); DISPLAY_F(f, " operating on links, block devices, etc. Unrecognized formats will be\n"); DISPLAY_F(f, " passed-through through as-is.\n\n"); DISPLAY_F(f, " -h Display short usage and exit.\n"); DISPLAY_F(f, " -H, --help Display full help and exit.\n"); DISPLAY_F(f, " -V, --version Display the program version and exit.\n"); DISPLAY_F(f, "\n"); } static void usageAdvanced(const char* programName) { DISPLAYOUT(WELCOME_MESSAGE); DISPLAYOUT("\n"); usage(stdout, programName); DISPLAYOUT("Advanced options:\n"); DISPLAYOUT(" -c, --stdout Write to STDOUT (even if it is a console) and keep the INPUT file(s).\n\n"); DISPLAYOUT(" -v, --verbose Enable verbose output; pass multiple times to increase verbosity.\n"); DISPLAYOUT(" -q, --quiet Suppress warnings; pass twice to suppress errors.\n"); #ifndef ZSTD_NOTRACE DISPLAYOUT(" --trace LOG Log tracing information to LOG.\n"); #endif DISPLAYOUT("\n"); DISPLAYOUT(" --[no-]progress Forcibly show/hide the progress counter. NOTE: Any (de)compressed\n"); DISPLAYOUT(" output to terminal will mix with progress counter text.\n\n"); #ifdef UTIL_HAS_CREATEFILELIST DISPLAYOUT(" -r Operate recursively on directories.\n"); DISPLAYOUT(" --filelist LIST Read a list of files to operate on from LIST.\n"); DISPLAYOUT(" --output-dir-flat DIR Store processed files in DIR.\n"); #endif #ifdef UTIL_HAS_MIRRORFILELIST DISPLAYOUT(" --output-dir-mirror DIR Store processed files in DIR, respecting original directory structure.\n"); #endif if (AIO_supported()) DISPLAYOUT(" --[no-]asyncio Use asynchronous IO. [Default: Enabled]\n"); DISPLAYOUT("\n"); #ifndef ZSTD_NOCOMPRESS DISPLAYOUT(" --[no-]check Add XXH64 integrity checksums during compression. [Default: Add, Validate]\n"); #ifndef ZSTD_NODECOMPRESS DISPLAYOUT(" If `-d` is present, ignore/validate checksums during decompression.\n"); #endif #else #ifdef ZSTD_NOCOMPRESS DISPLAYOUT(" --[no-]check Ignore/validate checksums during decompression. [Default: Validate]"); #endif #endif /* ZSTD_NOCOMPRESS */ DISPLAYOUT("\n"); DISPLAYOUT(" -- Treat remaining arguments after `--` as files.\n"); #ifndef ZSTD_NOCOMPRESS DISPLAYOUT("\n"); DISPLAYOUT("Advanced compression options:\n"); DISPLAYOUT(" --ultra Enable levels beyond %i, up to %i; requires more memory.\n", ZSTDCLI_CLEVEL_MAX, ZSTD_maxCLevel()); DISPLAYOUT(" --fast[=#] Use to very fast compression levels. [Default: %u]\n", 1); #ifdef ZSTD_GZCOMPRESS if (exeNameMatch(programName, ZSTD_GZ)) { /* behave like gzip */ DISPLAYOUT(" --best Compatibility alias for `-9`.\n"); } #endif DISPLAYOUT(" --adapt Dynamically adapt compression level to I/O conditions.\n"); DISPLAYOUT(" --long[=#] Enable long distance matching with window log #. [Default: %u]\n", g_defaultMaxWindowLog); DISPLAYOUT(" --patch-from=REF Use REF as the reference point for Zstandard's diff engine. \n\n"); # ifdef ZSTD_MULTITHREAD DISPLAYOUT(" -T# Spawn # compression threads. [Default: 1; pass 0 for core count.]\n"); DISPLAYOUT(" --single-thread Share a single thread for I/O and compression (slightly different than `-T1`).\n"); DISPLAYOUT(" --auto-threads={physical|logical}\n"); DISPLAYOUT(" Use physical/logical cores when using `-T0`. [Default: Physical]\n\n"); DISPLAYOUT(" -B# Set job size to #. [Default: 0 (automatic)]\n"); DISPLAYOUT(" --rsyncable Compress using a rsync-friendly method (`-B` sets block size). \n"); DISPLAYOUT("\n"); # endif DISPLAYOUT(" --exclude-compressed Only compress files that are not already compressed.\n\n"); DISPLAYOUT(" --stream-size=# Specify size of streaming input from STDIN.\n"); DISPLAYOUT(" --size-hint=# Optimize compression parameters for streaming input of approximately size #.\n"); DISPLAYOUT(" --target-compressed-block-size=#\n"); DISPLAYOUT(" Generate compressed blocks of approximately # size.\n\n"); DISPLAYOUT(" --no-dictID Don't write `dictID` into the header (dictionary compression only).\n"); DISPLAYOUT(" --[no-]compress-literals Force (un)compressed literals.\n"); DISPLAYOUT(" --[no-]row-match-finder Explicitly enable/disable the fast, row-based matchfinder for\n"); DISPLAYOUT(" the 'greedy', 'lazy', and 'lazy2' strategies.\n"); DISPLAYOUT("\n"); DISPLAYOUT(" --format=zstd Compress files to the `.zst` format. [Default]\n"); DISPLAYOUT(" --[no-]mmap-dict Memory-map dictionary file rather than mallocing and loading all at once\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 options:\n"); DISPLAYOUT(" -l Print information about Zstandard-compressed files.\n"); DISPLAYOUT(" --test Test compressed file integrity.\n"); DISPLAYOUT(" -M# Set the memory usage limit to # megabytes.\n"); # if ZSTD_SPARSE_DEFAULT DISPLAYOUT(" --[no-]sparse Enable sparse mode. [Default: Enabled for files, disabled for STDOUT.]\n"); # else DISPLAYOUT(" --[no-]sparse Enable sparse mode. [Default: Disabled]\n"); # endif { char const* passThroughDefault = "Disabled"; if (exeNameMatch(programName, ZSTD_CAT) || exeNameMatch(programName, ZSTD_ZCAT) || exeNameMatch(programName, ZSTD_GZCAT)) { passThroughDefault = "Enabled"; } DISPLAYOUT(" --[no-]pass-through Pass through uncompressed files as-is. [Default: %s]\n", passThroughDefault); } #endif /* ZSTD_NODECOMPRESS */ #ifndef ZSTD_NODICT DISPLAYOUT("\n"); DISPLAYOUT("Dictionary builder:\n"); DISPLAYOUT(" --train Create a dictionary from a training set of files.\n\n"); DISPLAYOUT(" --train-cover[=k=#,d=#,steps=#,split=#,shrink[=#]]\n"); DISPLAYOUT(" Use the cover algorithm (with optional arguments).\n"); DISPLAYOUT(" --train-fastcover[=k=#,d=#,f=#,steps=#,split=#,accel=#,shrink[=#]]\n"); DISPLAYOUT(" Use the fast cover algorithm (with optional arguments).\n\n"); DISPLAYOUT(" --train-legacy[=s=#] Use the legacy algorithm with selectivity #. [Default: %u]\n", g_defaultSelectivityLevel); DISPLAYOUT(" -o NAME Use NAME as 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 #. [Default: Random]\n"); #endif #ifndef ZSTD_NOBENCH DISPLAYOUT("\n"); DISPLAYOUT("Benchmark options:\n"); DISPLAYOUT(" -b# Perform benchmarking with compression level #. [Default: %d]\n", ZSTDCLI_CLEVEL_DEFAULT); DISPLAYOUT(" -e# Test all compression levels up to #; starting level is `-b#`. [Default: 1]\n"); DISPLAYOUT(" -i# Set the minimum evaluation to time # seconds. [Default: 3]\n"); DISPLAYOUT(" -B# Cut file into independent chunks of size #. [Default: No chunking]\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, const char* parameter) { DISPLAYLEVEL(1, "Incorrect parameter: %s \n", parameter); 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; } static void errorOut(const char* msg) { DISPLAYLEVEL(1, "%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; } /*! readIntFromChar() : * @return : signed 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 int readIntFromChar(const char** stringPtr) { static const char errorMsg[] = "error: numeric value overflows 32-bit int"; int sign = 1; unsigned result; if (**stringPtr=='-') { (*stringPtr)++; sign = -1; } if (readU32FromCharChecked(stringPtr, &result)) { errorOut(errorMsg); } return (int) result * sign; } /*! 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. "--adapt=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 = readIntFromChar(&stringPtr); if (stringPtr[0]==',') { stringPtr++; continue; } else break; } if (longCommandWArg(&stringPtr, "max=")) { *adaptMaxPtr = readIntFromChar(&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) { /* library versions */ DISPLAYOUT("zlib version %s\n", FIO_zlibVersion()); DISPLAYOUT("lz4 version %s\n", FIO_lz4Version()); DISPLAYOUT("lzma version %s\n", FIO_lzmaVersion()); /* 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 } } } #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"}; #ifndef ZSTD_NOCOMPRESS static void printDefaultCParams(const char* filename, const char* dictFileName, int cLevel) { unsigned long long fileSize = UTIL_getFileSize(filename); 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", filename, (unsigned)fileSize); else DISPLAY("%s (src size unknown)\n", filename); 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); } static void printActualCParams(const char* filename, const char* dictFileName, int cLevel, const ZSTD_compressionParameters* cParams) { unsigned long long fileSize = UTIL_getFileSize(filename); const size_t dictSize = dictFileName != NULL ? (size_t)UTIL_getFileSize(dictFileName) : 0; ZSTD_compressionParameters actualCParams = ZSTD_getCParams(cLevel, fileSize, dictSize); assert(g_displayLevel >= 4); actualCParams.windowLog = cParams->windowLog == 0 ? actualCParams.windowLog : cParams->windowLog; actualCParams.chainLog = cParams->chainLog == 0 ? actualCParams.chainLog : cParams->chainLog; actualCParams.hashLog = cParams->hashLog == 0 ? actualCParams.hashLog : cParams->hashLog; actualCParams.searchLog = cParams->searchLog == 0 ? actualCParams.searchLog : cParams->searchLog; actualCParams.minMatch = cParams->minMatch == 0 ? actualCParams.minMatch : cParams->minMatch; actualCParams.targetLength = cParams->targetLength == 0 ? actualCParams.targetLength : cParams->targetLength; actualCParams.strategy = cParams->strategy == 0 ? actualCParams.strategy : cParams->strategy; DISPLAY("--zstd=wlog=%d,clog=%d,hlog=%d,slog=%d,mml=%d,tlen=%d,strat=%d\n", actualCParams.windowLog, actualCParams.chainLog, actualCParams.hashLog, actualCParams.searchLog, actualCParams.minMatch, actualCParams.targetLength, actualCParams.strategy); } #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) { \ DISPLAYLEVEL(1, "error: missing command argument \n"); \ CLEAN_RETURN(1); \ } \ ptr = argv[argNb]; \ assert(ptr != NULL); \ if (ptr[0]=='-') { \ DISPLAYLEVEL(1, "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); \ if(*__nb != 0) { \ errorOut("error: only numeric values with optional suffixes K, KB, KiB, M, MB, MiB are allowed"); \ } \ } #define NEXT_TSIZE(valTsize) { \ const char* __nb; \ NEXT_FIELD(__nb); \ valTsize = readSizeTFromChar(&__nb); \ if(*__nb != 0) { \ errorOut("error: only numeric values with optional suffixes K, KB, KiB, M, MB, MiB are allowed"); \ } \ } 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 argCount, const char* argv[]) { int argNb, followLinks = 0, allowBlockDevices = 0, forceStdin = 0, forceStdout = 0, hasStdout = 0, ldmFlag = 0, main_pause = 0, adapt = 0, adaptMin = MINCLEVEL, adaptMax = MAXCLEVEL, rsyncable = 0, nextArgumentsAreFiles = 0, operationResult = 0, separateFiles = 0, setRealTimePrio = 0, singleThread = 0, defaultLogicalCores = 0, showDefaultCParams = 0, ultra=0, contentSize=1, removeSrcFile=0; ZSTD_paramSwitch_e mmapDict=ZSTD_ps_auto; ZSTD_paramSwitch_e useRowMatchFinder = ZSTD_ps_auto; FIO_compressionType_t cType = FIO_zstdCompression; unsigned nbWorkers = 0; double compressibility = -1.0; /* lorem ipsum generator */ 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(); FIO_progressSetting_e progress = FIO_ps_auto; 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; size_t nbInputFileNames = 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_paramSwitch_e literalCompressionMode = ZSTD_ps_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)) { DISPLAYLEVEL(1, "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; FIO_setPassThroughFlag(prefs, 1); outFileName=stdoutmark; g_displayLevel=1; } /* supports multiple formats */ if (exeNameMatch(programName, ZSTD_ZCAT)) { operation=zom_decompress; FIO_overwriteMode(prefs); forceStdout=1; followLinks=1; FIO_setPassThroughFlag(prefs, 1); outFileName=stdoutmark; g_displayLevel=1; } /* behave like zcat, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_GZ)) { /* behave like gzip */ suffix = GZ_EXTENSION; cType = FIO_gzipCompression; removeSrcFile=1; dictCLevel = cLevel = 6; /* gzip default is -6 */ } if (exeNameMatch(programName, ZSTD_GUNZIP)) { operation=zom_decompress; removeSrcFile=1; } /* behave like gunzip, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_GZCAT)) { operation=zom_decompress; FIO_overwriteMode(prefs); forceStdout=1; followLinks=1; FIO_setPassThroughFlag(prefs, 1); outFileName=stdoutmark; g_displayLevel=1; } /* behave like gzcat, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_LZMA)) { suffix = LZMA_EXTENSION; cType = FIO_lzmaCompression; removeSrcFile=1; } /* behave like lzma */ if (exeNameMatch(programName, ZSTD_UNLZMA)) { operation=zom_decompress; cType = FIO_lzmaCompression; removeSrcFile=1; } /* behave like unlzma, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_XZ)) { suffix = XZ_EXTENSION; cType = FIO_xzCompression; removeSrcFile=1; } /* behave like xz */ if (exeNameMatch(programName, ZSTD_UNXZ)) { operation=zom_decompress; cType = FIO_xzCompression; removeSrcFile=1; } /* behave like unxz, also supports multiple formats */ if (exeNameMatch(programName, ZSTD_LZ4)) { suffix = LZ4_EXTENSION; cType = FIO_lz4Compression; } /* behave like lz4 */ if (exeNameMatch(programName, ZSTD_UNLZ4)) { operation=zom_decompress; cType = 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]; const char* const originalArgument = argument; 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; allowBlockDevices=1; continue; } if (!strcmp(argument, "--version")) { printVersion(); CLEAN_RETURN(0); } if (!strcmp(argument, "--help")) { usageAdvanced(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; 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, "--pass-through")) { FIO_setPassThroughFlag(prefs, 1); continue; } if (!strcmp(argument, "--no-pass-through")) { FIO_setPassThroughFlag(prefs, 0); continue; } if (!strcmp(argument, "--test")) { operation=zom_test; continue; } if (!strcmp(argument, "--asyncio")) { FIO_setAsyncIOFlag(prefs, 1); continue;} if (!strcmp(argument, "--no-asyncio")) { FIO_setAsyncIOFlag(prefs, 0); 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")) { removeSrcFile=0; continue; } if (!strcmp(argument, "--rm")) { removeSrcFile=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 (!strcmp(argument, "--no-row-match-finder")) { useRowMatchFinder = ZSTD_ps_disable; continue; } if (!strcmp(argument, "--row-match-finder")) { useRowMatchFinder = ZSTD_ps_enable; continue; } if (longCommandWArg(&argument, "--adapt=")) { adapt = 1; if (!parseAdaptParameters(argument, &adaptMin, &adaptMax)) { badUsage(programName, originalArgument); CLEAN_RETURN(1); } continue; } if (!strcmp(argument, "--single-thread")) { nbWorkers = 0; singleThread = 1; continue; } if (!strcmp(argument, "--format=zstd")) { suffix = ZSTD_EXTENSION; cType = FIO_zstdCompression; continue; } if (!strcmp(argument, "--mmap-dict")) { mmapDict = ZSTD_ps_enable; continue; } if (!strcmp(argument, "--no-mmap-dict")) { mmapDict = ZSTD_ps_disable; continue; } #ifdef ZSTD_GZCOMPRESS if (!strcmp(argument, "--format=gzip")) { suffix = GZ_EXTENSION; cType = FIO_gzipCompression; continue; } if (exeNameMatch(programName, ZSTD_GZ)) { /* behave like gzip */ if (!strcmp(argument, "--best")) { dictCLevel = cLevel = 9; continue; } if (!strcmp(argument, "--no-name")) { /* ignore for now */; continue; } } #endif #ifdef ZSTD_LZMACOMPRESS if (!strcmp(argument, "--format=lzma")) { suffix = LZMA_EXTENSION; cType = FIO_lzmaCompression; continue; } if (!strcmp(argument, "--format=xz")) { suffix = XZ_EXTENSION; cType = FIO_xzCompression; continue; } #endif #ifdef ZSTD_LZ4COMPRESS if (!strcmp(argument, "--format=lz4")) { suffix = LZ4_EXTENSION; cType = FIO_lz4Compression; continue; } #endif if (!strcmp(argument, "--rsyncable")) { rsyncable = 1; continue; } if (!strcmp(argument, "--compress-literals")) { literalCompressionMode = ZSTD_ps_enable; continue; } if (!strcmp(argument, "--no-compress-literals")) { literalCompressionMode = ZSTD_ps_disable; continue; } if (!strcmp(argument, "--no-progress")) { progress = FIO_ps_never; continue; } if (!strcmp(argument, "--progress")) { progress = FIO_ps_always; continue; } if (!strcmp(argument, "--exclude-compressed")) { FIO_setExcludeCompressedFile(prefs, 1); continue; } if (!strcmp(argument, "--fake-stdin-is-console")) { UTIL_fakeStdinIsConsole(); continue; } if (!strcmp(argument, "--fake-stdout-is-console")) { UTIL_fakeStdoutIsConsole(); continue; } if (!strcmp(argument, "--fake-stderr-is-console")) { UTIL_fakeStderrIsConsole(); continue; } if (!strcmp(argument, "--trace-file-stat")) { UTIL_traceFileStat(); 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, originalArgument); CLEAN_RETURN(1); } else if (!parseCoverParameters(argument, &coverParams)) { badUsage(programName, originalArgument); 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, originalArgument); CLEAN_RETURN(1); } else if (!parseFastCoverParameters(argument, &fastCoverParams)) { badUsage(programName, originalArgument); 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, originalArgument); CLEAN_RETURN(1); } else if (!parseLegacyParameters(argument, &dictSelect)) { badUsage(programName, originalArgument); 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")) { NEXT_TSIZE(blockSize); 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, originalArgument); CLEAN_RETURN(1); } ; cType = FIO_zstdCompression; continue; } if (longCommandWArg(&argument, "--stream-size")) { NEXT_TSIZE(streamSrcSize); continue; } if (longCommandWArg(&argument, "--target-compressed-block-size")) { NEXT_TSIZE(targetCBlockSize); continue; } if (longCommandWArg(&argument, "--size-hint")) { NEXT_TSIZE(srcSizeHint); continue; } if (longCommandWArg(&argument, "--output-dir-flat")) { NEXT_FIELD(outDirName); if (strlen(outDirName) == 0) { DISPLAYLEVEL(1, "error: output dir cannot be empty string (did you mean to pass '.' instead?)\n"); CLEAN_RETURN(1); } continue; } if (longCommandWArg(&argument, "--auto-threads")) { const char* threadDefault = NULL; NEXT_FIELD(threadDefault); if (strcmp(threadDefault, "logical") == 0) defaultLogicalCores = 1; continue; } #ifdef UTIL_HAS_MIRRORFILELIST if (longCommandWArg(&argument, "--output-dir-mirror")) { NEXT_FIELD(outMirroredDirName); if (strlen(outMirroredDirName) == 0) { DISPLAYLEVEL(1, "error: output dir cannot be empty string (did you mean to pass '.' instead?)\n"); CLEAN_RETURN(1); } 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, originalArgument); CLEAN_RETURN(1); } else { ldmWindowLog = g_defaultMaxWindowLog; } /* 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, originalArgument); CLEAN_RETURN(1); } } else if (*argument != 0) { /* Invalid character following --fast */ badUsage(programName, originalArgument); 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; } badUsage(programName, originalArgument); CLEAN_RETURN(1); } 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': usageAdvanced(programName); CLEAN_RETURN(0); case 'h': usage(stdout, 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; /* destination file name */ case 'o': argument++; NEXT_FIELD(outFileName); break; /* do not store filename - gzip compatibility - nothing to do */ case 'n': 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; allowBlockDevices=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': removeSrcFile=0; argument++; break; /* Checksum */ case 'C': FIO_setChecksumFlag(prefs, 2); argument++; break; /* test compressed file */ case 't': operation=zom_test; argument++; 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 = 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 : { char shortArgument[3] = {'-', 0, 0}; shortArgument[1] = argument[0]; badUsage(programName, shortArgument); 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 ((operation==zom_decompress) && (!singleThread) && (nbWorkers > 1)) { DISPLAYLEVEL(2, "Warning : decompression does not support multi-threading\n"); } if ((nbWorkers==0) && (!singleThread)) { /* automatically set # workers based on # of reported cpus */ if (defaultLogicalCores) { nbWorkers = (unsigned)UTIL_countLogicalCores(); DISPLAYLEVEL(3, "Note: %d logical core(s) detected \n", nbWorkers); } else { nbWorkers = (unsigned)UTIL_countPhysicalCores(); DISPLAYLEVEL(3, "Note: %d physical core(s) detected \n", nbWorkers); } } #else (void)singleThread; (void)nbWorkers; (void)defaultLogicalCores; #endif g_utilDisplayLevel = g_displayLevel; #ifdef UTIL_HAS_CREATEFILELIST 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); } } nbInputFileNames = filenames->tableSize; /* saving number of input files */ 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 DISPLAYLEVEL(1, "file information is not supported \n"); CLEAN_RETURN(1); #endif } /* Check if benchmark is selected */ if (operation==zom_bench) { #ifndef ZSTD_NOBENCH if (cType != FIO_zstdCompression) { DISPLAYLEVEL(1, "benchmark mode is only compatible with zstd format \n"); CLEAN_RETURN(1); } benchParams.blockSize = blockSize; benchParams.targetCBlockSize = targetCBlockSize; benchParams.nbWorkers = (int)nbWorkers; benchParams.realTime = (unsigned)setRealTimePrio; benchParams.nbSeconds = bench_nbSeconds; benchParams.ldmFlag = ldmFlag; benchParams.ldmMinMatch = (int)g_ldmMinMatch; benchParams.ldmHashLog = (int)g_ldmHashLog; benchParams.useRowMatchFinder = (int)useRowMatchFinder; 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++) { operationResult = BMK_benchFilesAdvanced(&filenames->fileNames[i], 1, dictFileName, c, &compressionParams, g_displayLevel, &benchParams); } } } else { for(; cLevel <= cLevelLast; cLevel++) { operationResult = BMK_benchFilesAdvanced(filenames->fileNames, (unsigned)filenames->tableSize, dictFileName, cLevel, &compressionParams, g_displayLevel, &benchParams); } } } else { for(; cLevel <= cLevelLast; cLevel++) { operationResult = 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, (int)filenames->tableSize, blockSize, NULL, &coverParams, NULL, optimize, memLimit); } 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, (int)filenames->tableSize, blockSize, NULL, NULL, &fastCoverParams, optimize, memLimit); } else { ZDICT_legacy_params_t dictParams; memset(&dictParams, 0, sizeof(dictParams)); dictParams.selectivityLevel = dictSelect; dictParams.zParams = zParams; operationResult = DiB_trainFromFiles(outFileName, maxDictSize, filenames->fileNames, (int)filenames->tableSize, blockSize, &dictParams, NULL, NULL, 0, memLimit); } #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; removeSrcFile=0; } /* test mode */ #endif /* No input filename ==> use stdin and stdout */ if (filenames->tableSize == 0) { /* It is possible that the input was a number of empty directories. In this case stdin and stdout should not be used */ if (nbInputFileNames > 0 ){ DISPLAYLEVEL(1, "please provide correct input file(s) or non-empty directories -- ignored \n"); CLEAN_RETURN(0); } UTIL_refFilename(filenames, stdinmark); } if (filenames->tableSize == 1 && !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 && (UTIL_searchFileNamesTable(filenames, stdinmark) != -1) && UTIL_isConsole(stdin) ) { DISPLAYLEVEL(1, "stdin is a console, aborting\n"); CLEAN_RETURN(1); } if ( (!outFileName || !strcmp(outFileName, stdoutmark)) && UTIL_isConsole(stdout) && (UTIL_searchFileNamesTable(filenames, stdinmark) != -1) && !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) { DISPLAYLEVEL(1, "error : can't use --show-default-cparams in decompression mode \n"); CLEAN_RETURN(1); } } if (dictFileName != NULL && patchFromDictFileName != NULL) { DISPLAYLEVEL(1, "error : can't use -D and --patch-from=# at the same time \n"); CLEAN_RETURN(1); } if (patchFromDictFileName != NULL && filenames->tableSize > 1) { DISPLAYLEVEL(1, "error : can't use --patch-from=# on multiple files \n"); CLEAN_RETURN(1); } /* No status message by default when output is stdout */ hasStdout = outFileName && !strcmp(outFileName,stdoutmark); if (hasStdout && (g_displayLevel==2)) g_displayLevel=1; /* when stderr is not the console, do not pollute it with progress updates (unless requested) */ if (!UTIL_isConsole(stderr) && (progress!=FIO_ps_always)) progress=FIO_ps_never; FIO_setProgressSetting(progress); /* don't remove source files when output is stdout */; if (hasStdout && removeSrcFile) { DISPLAYLEVEL(3, "Note: src files are not removed when output is stdout \n"); removeSrcFile = 0; } FIO_setRemoveSrcFile(prefs, removeSrcFile); /* IO Stream/File */ FIO_setHasStdoutOutput(fCtx, hasStdout); FIO_setNbFilesTotal(fCtx, (int)filenames->tableSize); FIO_determineHasStdinInput(fCtx, filenames); FIO_setNotificationLevel(g_displayLevel); FIO_setAllowBlockDevices(prefs, allowBlockDevices); FIO_setPatchFromMode(prefs, patchFromDictFileName != NULL); FIO_setMMapDict(prefs, mmapDict); 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_setCompressionType(prefs, cType); FIO_setContentSize(prefs, contentSize); FIO_setNbWorkers(prefs, (int)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, adapt); FIO_setUseRowMatchFinder(prefs, (int)useRowMatchFinder); 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); FIO_setSparseWrite(prefs, 0); 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 || g_displayLevel >= 4) { size_t fileNb; for (fileNb = 0; fileNb < (size_t)filenames->tableSize; fileNb++) { if (showDefaultCParams) printDefaultCParams(filenames->fileNames[fileNb], dictFileName, cLevel); if (g_displayLevel >= 4) printActualCParams(filenames->fileNames[fileNb], dictFileName, cLevel, &compressionParams); } } if (g_displayLevel >= 4) FIO_displayCompressionParameters(prefs); 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 /* these variables are only used when compression mode is enabled */ (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; (void)useRowMatchFinder; (void)cType; DISPLAYLEVEL(1, "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 DISPLAYLEVEL(1, "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; }