2090 lines
81 KiB
C
2090 lines
81 KiB
C
/*
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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/* *************************************
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* Compiler Options
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***************************************/
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#ifdef _MSC_VER /* Visual */
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# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
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# pragma warning(disable : 4204) /* non-constant aggregate initializer */
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#endif
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#if defined(__MINGW32__) && !defined(_POSIX_SOURCE)
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# define _POSIX_SOURCE 1 /* disable %llu warnings with MinGW on Windows */
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#endif
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/*-*************************************
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* Includes
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***************************************/
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#include "platform.h" /* Large Files support, SET_BINARY_MODE */
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#include "util.h" /* UTIL_getFileSize, UTIL_isRegularFile */
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#include <stdio.h> /* fprintf, fopen, fread, _fileno, stdin, stdout */
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#include <stdlib.h> /* malloc, free */
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#include <string.h> /* strcmp, strlen */
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#include <errno.h> /* errno */
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#include "mem.h"
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#include "fileio.h"
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#include "util.h"
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#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_magicNumber, ZSTD_frameHeaderSize_max */
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#include "zstd.h"
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#include "zstd_errors.h" /* ZSTD_error_frameParameter_windowTooLarge */
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#if defined(ZSTD_GZCOMPRESS) || defined(ZSTD_GZDECOMPRESS)
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# include <zlib.h>
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# if !defined(z_const)
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# define z_const
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# endif
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#endif
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#if defined(ZSTD_LZMACOMPRESS) || defined(ZSTD_LZMADECOMPRESS)
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# include <lzma.h>
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#endif
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#define LZ4_MAGICNUMBER 0x184D2204
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#if defined(ZSTD_LZ4COMPRESS) || defined(ZSTD_LZ4DECOMPRESS)
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# define LZ4F_ENABLE_OBSOLETE_ENUMS
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# include <lz4frame.h>
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# include <lz4.h>
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#endif
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// Multi-OS support for determining if terminal is tty
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#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || \
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defined(__CYGWIN__)
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#include <io.h> /* _isatty */
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#include <sys/stat.h>
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#define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
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#elif defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || defined(_POSIX_SOURCE) || (defined(__APPLE__) && defined(__MACH__)) || \
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defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) /* https://sourceforge.net/p/predef/wiki/OperatingSystems/ */
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#include <unistd.h> /* isatty */
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#define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
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#else
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#define IS_CONSOLE(stdStream) 0
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#endif
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/*-*************************************
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* Constants
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***************************************/
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#define KB *(1<<10)
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#define MB *(1<<20)
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#define GB *(1U<<30)
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#define DICTSIZE_MAX (32 MB) /* protection against large input (attack scenario) */
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#define FNSPACE 30
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/*-*************************************
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* Macros
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***************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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#define DISPLAYOUT(...) fprintf(stdout, __VA_ARGS__)
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#define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } }
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static int g_displayLevel = 2; /* 0 : no display; 1: errors; 2: + result + interaction + warnings; 3: + progression; 4: + information */
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void FIO_setNotificationLevel(unsigned level) { g_displayLevel=level; }
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static const U64 g_refreshRate = SEC_TO_MICRO / 6;
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static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER;
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#define READY_FOR_UPDATE() (UTIL_clockSpanMicro(g_displayClock) > g_refreshRate)
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#define DELAY_NEXT_UPDATE() { g_displayClock = UTIL_getTime(); }
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#define DISPLAYUPDATE(l, ...) { \
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if (g_displayLevel>=l) { \
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if (READY_FOR_UPDATE() || (g_displayLevel>=4)) { \
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DELAY_NEXT_UPDATE(); \
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DISPLAY(__VA_ARGS__); \
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if (g_displayLevel>=4) fflush(stderr); \
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} } }
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#undef MIN /* in case it would be already defined */
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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/*-*************************************
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* Debug
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***************************************/
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#if defined(ZSTD_DEBUG) && (ZSTD_DEBUG>=1)
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# include <assert.h>
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#else
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# ifndef assert
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# define assert(condition) ((void)0)
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# endif
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#endif
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#ifndef ZSTD_DEBUG
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# define ZSTD_DEBUG 0
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#endif
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#define DEBUGLOG(l,...) if (l<=ZSTD_DEBUG) DISPLAY(__VA_ARGS__);
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#define EXM_THROW(error, ...) \
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{ \
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DISPLAYLEVEL(1, "zstd: "); \
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DEBUGLOG(1, "Error defined at %s, line %i : \n", __FILE__, __LINE__); \
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DISPLAYLEVEL(1, "error %i : ", error); \
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DISPLAYLEVEL(1, __VA_ARGS__); \
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DISPLAYLEVEL(1, " \n"); \
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exit(error); \
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}
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#define CHECK_V(v, f) \
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v = f; \
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if (ZSTD_isError(v)) { \
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DEBUGLOG(1, "%s \n", #f); \
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EXM_THROW(11, "%s", ZSTD_getErrorName(v)); \
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}
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#define CHECK(f) { size_t err; CHECK_V(err, f); }
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/*-************************************
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* Signal (Ctrl-C trapping)
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**************************************/
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#include <signal.h>
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static const char* g_artefact = NULL;
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static void INThandler(int sig)
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{
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assert(sig==SIGINT); (void)sig;
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#if !defined(_MSC_VER)
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signal(sig, SIG_IGN); /* this invocation generates a buggy warning in Visual Studio */
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#endif
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if (g_artefact) {
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assert(UTIL_isRegularFile(g_artefact));
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remove(g_artefact);
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}
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DISPLAY("\n");
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exit(2);
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}
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static void addHandler(char const* dstFileName)
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{
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if (UTIL_isRegularFile(dstFileName)) {
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g_artefact = dstFileName;
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signal(SIGINT, INThandler);
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} else {
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g_artefact = NULL;
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}
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}
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/* Idempotent */
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static void clearHandler(void)
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{
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if (g_artefact) signal(SIGINT, SIG_DFL);
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g_artefact = NULL;
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}
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/* ************************************************************
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* Avoid fseek()'s 2GiB barrier with MSVC, MacOS, *BSD, MinGW
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***************************************************************/
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#if defined(_MSC_VER) && _MSC_VER >= 1400
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# define LONG_SEEK _fseeki64
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#elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */
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# define LONG_SEEK fseeko
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#elif defined(__MINGW32__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS) && defined(__MSVCRT__)
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# define LONG_SEEK fseeko64
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#elif defined(_WIN32) && !defined(__DJGPP__)
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# include <windows.h>
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static int LONG_SEEK(FILE* file, __int64 offset, int origin) {
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LARGE_INTEGER off;
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DWORD method;
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off.QuadPart = offset;
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if (origin == SEEK_END)
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method = FILE_END;
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else if (origin == SEEK_CUR)
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method = FILE_CURRENT;
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else
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method = FILE_BEGIN;
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if (SetFilePointerEx((HANDLE) _get_osfhandle(_fileno(file)), off, NULL, method))
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return 0;
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else
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return -1;
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}
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#else
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# define LONG_SEEK fseek
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#endif
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/*-*************************************
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* Local Parameters - Not thread safe
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***************************************/
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static FIO_compressionType_t g_compressionType = FIO_zstdCompression;
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void FIO_setCompressionType(FIO_compressionType_t compressionType) { g_compressionType = compressionType; }
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static U32 g_overwrite = 0;
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void FIO_overwriteMode(void) { g_overwrite=1; }
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static U32 g_sparseFileSupport = 1; /* 0: no sparse allowed; 1: auto (file yes, stdout no); 2: force sparse */
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void FIO_setSparseWrite(unsigned sparse) { g_sparseFileSupport=sparse; }
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static U32 g_dictIDFlag = 1;
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void FIO_setDictIDFlag(unsigned dictIDFlag) { g_dictIDFlag = dictIDFlag; }
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static U32 g_checksumFlag = 1;
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void FIO_setChecksumFlag(unsigned checksumFlag) { g_checksumFlag = checksumFlag; }
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static U32 g_removeSrcFile = 0;
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void FIO_setRemoveSrcFile(unsigned flag) { g_removeSrcFile = (flag>0); }
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static U32 g_memLimit = 0;
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void FIO_setMemLimit(unsigned memLimit) { g_memLimit = memLimit; }
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static U32 g_nbWorkers = 1;
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void FIO_setNbWorkers(unsigned nbWorkers) {
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#ifndef ZSTD_MULTITHREAD
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if (nbWorkers > 0) DISPLAYLEVEL(2, "Note : multi-threading is disabled \n");
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#endif
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g_nbWorkers = nbWorkers;
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}
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static U32 g_blockSize = 0;
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void FIO_setBlockSize(unsigned blockSize) {
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if (blockSize && g_nbWorkers==0)
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DISPLAYLEVEL(2, "Setting block size is useless in single-thread mode \n");
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g_blockSize = blockSize;
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}
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#define FIO_OVERLAP_LOG_NOTSET 9999
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static U32 g_overlapLog = FIO_OVERLAP_LOG_NOTSET;
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void FIO_setOverlapLog(unsigned overlapLog){
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if (overlapLog && g_nbWorkers==0)
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DISPLAYLEVEL(2, "Setting overlapLog is useless in single-thread mode \n");
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g_overlapLog = overlapLog;
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}
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static U32 g_ldmFlag = 0;
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void FIO_setLdmFlag(unsigned ldmFlag) {
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g_ldmFlag = (ldmFlag>0);
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}
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static U32 g_ldmHashLog = 0;
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void FIO_setLdmHashLog(unsigned ldmHashLog) {
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g_ldmHashLog = ldmHashLog;
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}
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static U32 g_ldmMinMatch = 0;
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void FIO_setLdmMinMatch(unsigned ldmMinMatch) {
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g_ldmMinMatch = ldmMinMatch;
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}
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#define FIO_LDM_PARAM_NOTSET 9999
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static U32 g_ldmBucketSizeLog = FIO_LDM_PARAM_NOTSET;
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void FIO_setLdmBucketSizeLog(unsigned ldmBucketSizeLog) {
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g_ldmBucketSizeLog = ldmBucketSizeLog;
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}
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static U32 g_ldmHashEveryLog = FIO_LDM_PARAM_NOTSET;
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void FIO_setLdmHashEveryLog(unsigned ldmHashEveryLog) {
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g_ldmHashEveryLog = ldmHashEveryLog;
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}
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/*-*************************************
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* Functions
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***************************************/
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/** FIO_remove() :
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* @result : Unlink `fileName`, even if it's read-only */
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static int FIO_remove(const char* path)
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{
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if (!UTIL_isRegularFile(path)) {
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DISPLAYLEVEL(2, "zstd: Refusing to remove non-regular file %s\n", path);
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return 0;
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}
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#if defined(_WIN32) || defined(WIN32)
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/* windows doesn't allow remove read-only files,
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* so try to make it writable first */
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chmod(path, _S_IWRITE);
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#endif
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return remove(path);
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}
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/** FIO_openSrcFile() :
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* condition : `srcFileName` must be non-NULL.
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* @result : FILE* to `srcFileName`, or NULL if it fails */
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static FILE* FIO_openSrcFile(const char* srcFileName)
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{
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assert(srcFileName != NULL);
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if (!strcmp (srcFileName, stdinmark)) {
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DISPLAYLEVEL(4,"Using stdin for input\n");
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SET_BINARY_MODE(stdin);
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return stdin;
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}
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if (!UTIL_isRegularFile(srcFileName)) {
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DISPLAYLEVEL(1, "zstd: %s is not a regular file -- ignored \n",
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srcFileName);
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return NULL;
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}
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{ FILE* const f = fopen(srcFileName, "rb");
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if (f == NULL)
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DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno));
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return f;
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}
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}
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/** FIO_openDstFile() :
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* condition : `dstFileName` must be non-NULL.
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* @result : FILE* to `dstFileName`, or NULL if it fails */
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static FILE* FIO_openDstFile(const char* dstFileName)
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{
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assert(dstFileName != NULL);
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if (!strcmp (dstFileName, stdoutmark)) {
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DISPLAYLEVEL(4,"Using stdout for output\n");
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SET_BINARY_MODE(stdout);
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if (g_sparseFileSupport==1) {
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g_sparseFileSupport = 0;
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DISPLAYLEVEL(4, "Sparse File Support is automatically disabled on stdout ; try --sparse \n");
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}
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return stdout;
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}
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if (g_sparseFileSupport == 1) {
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g_sparseFileSupport = ZSTD_SPARSE_DEFAULT;
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}
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if (UTIL_isRegularFile(dstFileName)) {
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FILE* fCheck;
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if (!strcmp(dstFileName, nulmark)) {
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EXM_THROW(40, "%s is unexpectedly a regular file", dstFileName);
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}
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/* Check if destination file already exists */
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fCheck = fopen( dstFileName, "rb" );
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if (fCheck != NULL) { /* dst file exists, authorization prompt */
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fclose(fCheck);
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if (!g_overwrite) {
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if (g_displayLevel <= 1) {
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/* No interaction possible */
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DISPLAY("zstd: %s already exists; not overwritten \n",
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dstFileName);
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return NULL;
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}
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DISPLAY("zstd: %s already exists; overwrite (y/N) ? ",
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dstFileName);
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{ int ch = getchar();
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if ((ch!='Y') && (ch!='y')) {
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DISPLAY(" not overwritten \n");
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return NULL;
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}
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/* flush rest of input line */
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while ((ch!=EOF) && (ch!='\n')) ch = getchar();
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} }
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/* need to unlink */
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FIO_remove(dstFileName);
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} }
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{ FILE* const f = fopen( dstFileName, "wb" );
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if (f == NULL)
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DISPLAYLEVEL(1, "zstd: %s: %s\n", dstFileName, strerror(errno));
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return f;
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}
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}
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/*! FIO_createDictBuffer() :
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* creates a buffer, pointed by `*bufferPtr`,
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* loads `filename` content into it, up to DICTSIZE_MAX bytes.
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* @return : loaded size
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* if fileName==NULL, returns 0 and a NULL pointer
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*/
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static size_t FIO_createDictBuffer(void** bufferPtr, const char* fileName)
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{
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FILE* fileHandle;
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U64 fileSize;
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assert(bufferPtr != NULL);
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*bufferPtr = NULL;
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if (fileName == NULL) return 0;
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DISPLAYLEVEL(4,"Loading %s as dictionary \n", fileName);
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fileHandle = fopen(fileName, "rb");
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if (fileHandle==NULL) EXM_THROW(31, "%s: %s", fileName, strerror(errno));
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fileSize = UTIL_getFileSize(fileName);
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if (fileSize > DICTSIZE_MAX) {
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EXM_THROW(32, "Dictionary file %s is too large (> %u MB)",
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fileName, DICTSIZE_MAX >> 20); /* avoid extreme cases */
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}
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*bufferPtr = malloc((size_t)fileSize);
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if (*bufferPtr==NULL) EXM_THROW(34, "%s", strerror(errno));
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{ size_t const readSize = fread(*bufferPtr, 1, (size_t)fileSize, fileHandle);
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if (readSize!=fileSize)
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EXM_THROW(35, "Error reading dictionary file %s", fileName);
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}
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fclose(fileHandle);
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return (size_t)fileSize;
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}
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#ifndef ZSTD_NOCOMPRESS
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/* **********************************************************************
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* Compression
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************************************************************************/
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typedef struct {
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FILE* srcFile;
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FILE* dstFile;
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void* srcBuffer;
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size_t srcBufferSize;
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void* dstBuffer;
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size_t dstBufferSize;
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ZSTD_CStream* cctx;
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} cRess_t;
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static cRess_t FIO_createCResources(const char* dictFileName, int cLevel,
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U64 srcSize,
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ZSTD_compressionParameters* comprParams) {
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cRess_t ress;
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memset(&ress, 0, sizeof(ress));
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DISPLAYLEVEL(6, "FIO_createCResources \n");
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ress.cctx = ZSTD_createCCtx();
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if (ress.cctx == NULL)
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EXM_THROW(30, "allocation error : can't create ZSTD_CCtx");
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ress.srcBufferSize = ZSTD_CStreamInSize();
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ress.srcBuffer = malloc(ress.srcBufferSize);
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ress.dstBufferSize = ZSTD_CStreamOutSize();
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ress.dstBuffer = malloc(ress.dstBufferSize);
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if (!ress.srcBuffer || !ress.dstBuffer)
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EXM_THROW(31, "allocation error : not enough memory");
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/* Advanced parameters, including dictionary */
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{ void* dictBuffer;
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size_t const dictBuffSize = FIO_createDictBuffer(&dictBuffer, dictFileName); /* works with dictFileName==NULL */
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if (dictFileName && (dictBuffer==NULL))
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EXM_THROW(32, "allocation error : can't create dictBuffer");
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_contentSizeFlag, 1) ); /* always enable content size when available (note: supposed to be default) */
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_dictIDFlag, g_dictIDFlag) );
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_checksumFlag, g_checksumFlag) );
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/* compression level */
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_compressionLevel, (unsigned)cLevel) );
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/* long distance matching */
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_enableLongDistanceMatching, g_ldmFlag) );
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmHashLog, g_ldmHashLog) );
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmMinMatch, g_ldmMinMatch) );
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if (g_ldmBucketSizeLog != FIO_LDM_PARAM_NOTSET) {
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CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmBucketSizeLog, g_ldmBucketSizeLog) );
|
|
}
|
|
if (g_ldmHashEveryLog != FIO_LDM_PARAM_NOTSET) {
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmHashEveryLog, g_ldmHashEveryLog) );
|
|
}
|
|
/* compression parameters */
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_windowLog, comprParams->windowLog) );
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_chainLog, comprParams->chainLog) );
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_hashLog, comprParams->hashLog) );
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_searchLog, comprParams->searchLog) );
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_minMatch, comprParams->searchLength) );
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_targetLength, comprParams->targetLength) );
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_compressionStrategy, (U32)comprParams->strategy) );
|
|
/* multi-threading */
|
|
#ifdef ZSTD_MULTITHREAD
|
|
DISPLAYLEVEL(5,"set nb workers = %u \n", g_nbWorkers);
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_nbWorkers, g_nbWorkers) );
|
|
if ( (g_overlapLog == FIO_OVERLAP_LOG_NOTSET)
|
|
&& (cLevel == ZSTD_maxCLevel()) )
|
|
g_overlapLog = 9; /* full overlap */
|
|
if (g_overlapLog != FIO_OVERLAP_LOG_NOTSET) {
|
|
DISPLAYLEVEL(3,"set overlapLog = %u \n", g_overlapLog);
|
|
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_overlapSizeLog, g_overlapLog) );
|
|
}
|
|
#endif
|
|
/* dictionary */
|
|
CHECK( ZSTD_CCtx_setPledgedSrcSize(ress.cctx, srcSize) ); /* set the value temporarily for dictionary loading, to adapt compression parameters */
|
|
CHECK( ZSTD_CCtx_loadDictionary(ress.cctx, dictBuffer, dictBuffSize) );
|
|
CHECK( ZSTD_CCtx_setPledgedSrcSize(ress.cctx, ZSTD_CONTENTSIZE_UNKNOWN) ); /* reset */
|
|
|
|
free(dictBuffer);
|
|
}
|
|
|
|
return ress;
|
|
}
|
|
|
|
static void FIO_freeCResources(cRess_t ress)
|
|
{
|
|
free(ress.srcBuffer);
|
|
free(ress.dstBuffer);
|
|
ZSTD_freeCStream(ress.cctx); /* never fails */
|
|
}
|
|
|
|
|
|
#ifdef ZSTD_GZCOMPRESS
|
|
static unsigned long long FIO_compressGzFrame(cRess_t* ress,
|
|
const char* srcFileName, U64 const srcFileSize,
|
|
int compressionLevel, U64* readsize)
|
|
{
|
|
unsigned long long inFileSize = 0, outFileSize = 0;
|
|
z_stream strm;
|
|
int ret;
|
|
|
|
if (compressionLevel > Z_BEST_COMPRESSION)
|
|
compressionLevel = Z_BEST_COMPRESSION;
|
|
|
|
strm.zalloc = Z_NULL;
|
|
strm.zfree = Z_NULL;
|
|
strm.opaque = Z_NULL;
|
|
|
|
ret = deflateInit2(&strm, compressionLevel, Z_DEFLATED,
|
|
15 /* maxWindowLogSize */ + 16 /* gzip only */,
|
|
8, Z_DEFAULT_STRATEGY); /* see http://www.zlib.net/manual.html */
|
|
if (ret != Z_OK)
|
|
EXM_THROW(71, "zstd: %s: deflateInit2 error %d \n", srcFileName, ret);
|
|
|
|
strm.next_in = 0;
|
|
strm.avail_in = 0;
|
|
strm.next_out = (Bytef*)ress->dstBuffer;
|
|
strm.avail_out = (uInt)ress->dstBufferSize;
|
|
|
|
while (1) {
|
|
if (strm.avail_in == 0) {
|
|
size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile);
|
|
if (inSize == 0) break;
|
|
inFileSize += inSize;
|
|
strm.next_in = (z_const unsigned char*)ress->srcBuffer;
|
|
strm.avail_in = (uInt)inSize;
|
|
}
|
|
ret = deflate(&strm, Z_NO_FLUSH);
|
|
if (ret != Z_OK)
|
|
EXM_THROW(72, "zstd: %s: deflate error %d \n", srcFileName, ret);
|
|
{ size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
|
|
if (decompBytes) {
|
|
if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes)
|
|
EXM_THROW(73, "Write error : cannot write to output file");
|
|
outFileSize += decompBytes;
|
|
strm.next_out = (Bytef*)ress->dstBuffer;
|
|
strm.avail_out = (uInt)ress->dstBufferSize;
|
|
}
|
|
}
|
|
if (srcFileSize == UTIL_FILESIZE_UNKNOWN)
|
|
DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
|
|
(U32)(inFileSize>>20),
|
|
(double)outFileSize/inFileSize*100)
|
|
else
|
|
DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
|
|
(U32)(inFileSize>>20), (U32)(srcFileSize>>20),
|
|
(double)outFileSize/inFileSize*100);
|
|
}
|
|
|
|
while (1) {
|
|
ret = deflate(&strm, Z_FINISH);
|
|
{ size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
|
|
if (decompBytes) {
|
|
if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes)
|
|
EXM_THROW(75, "Write error : cannot write to output file");
|
|
outFileSize += decompBytes;
|
|
strm.next_out = (Bytef*)ress->dstBuffer;
|
|
strm.avail_out = (uInt)ress->dstBufferSize;
|
|
} }
|
|
if (ret == Z_STREAM_END) break;
|
|
if (ret != Z_BUF_ERROR)
|
|
EXM_THROW(77, "zstd: %s: deflate error %d \n", srcFileName, ret);
|
|
}
|
|
|
|
ret = deflateEnd(&strm);
|
|
if (ret != Z_OK)
|
|
EXM_THROW(79, "zstd: %s: deflateEnd error %d \n", srcFileName, ret);
|
|
*readsize = inFileSize;
|
|
|
|
return outFileSize;
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef ZSTD_LZMACOMPRESS
|
|
static unsigned long long FIO_compressLzmaFrame(cRess_t* ress,
|
|
const char* srcFileName, U64 const srcFileSize,
|
|
int compressionLevel, U64* readsize, int plain_lzma)
|
|
{
|
|
unsigned long long inFileSize = 0, outFileSize = 0;
|
|
lzma_stream strm = LZMA_STREAM_INIT;
|
|
lzma_action action = LZMA_RUN;
|
|
lzma_ret ret;
|
|
|
|
if (compressionLevel < 0) compressionLevel = 0;
|
|
if (compressionLevel > 9) compressionLevel = 9;
|
|
|
|
if (plain_lzma) {
|
|
lzma_options_lzma opt_lzma;
|
|
if (lzma_lzma_preset(&opt_lzma, compressionLevel))
|
|
EXM_THROW(71, "zstd: %s: lzma_lzma_preset error", srcFileName);
|
|
ret = lzma_alone_encoder(&strm, &opt_lzma); /* LZMA */
|
|
if (ret != LZMA_OK)
|
|
EXM_THROW(71, "zstd: %s: lzma_alone_encoder error %d", srcFileName, ret);
|
|
} else {
|
|
ret = lzma_easy_encoder(&strm, compressionLevel, LZMA_CHECK_CRC64); /* XZ */
|
|
if (ret != LZMA_OK)
|
|
EXM_THROW(71, "zstd: %s: lzma_easy_encoder error %d", srcFileName, ret);
|
|
}
|
|
|
|
strm.next_in = 0;
|
|
strm.avail_in = 0;
|
|
strm.next_out = (BYTE*)ress->dstBuffer;
|
|
strm.avail_out = ress->dstBufferSize;
|
|
|
|
while (1) {
|
|
if (strm.avail_in == 0) {
|
|
size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile);
|
|
if (inSize == 0) action = LZMA_FINISH;
|
|
inFileSize += inSize;
|
|
strm.next_in = (BYTE const*)ress->srcBuffer;
|
|
strm.avail_in = inSize;
|
|
}
|
|
|
|
ret = lzma_code(&strm, action);
|
|
|
|
if (ret != LZMA_OK && ret != LZMA_STREAM_END)
|
|
EXM_THROW(72, "zstd: %s: lzma_code encoding error %d", srcFileName, ret);
|
|
{ size_t const compBytes = ress->dstBufferSize - strm.avail_out;
|
|
if (compBytes) {
|
|
if (fwrite(ress->dstBuffer, 1, compBytes, ress->dstFile) != compBytes)
|
|
EXM_THROW(73, "Write error : cannot write to output file");
|
|
outFileSize += compBytes;
|
|
strm.next_out = (BYTE*)ress->dstBuffer;
|
|
strm.avail_out = ress->dstBufferSize;
|
|
} }
|
|
if (srcFileSize == UTIL_FILESIZE_UNKNOWN)
|
|
DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
|
|
(U32)(inFileSize>>20),
|
|
(double)outFileSize/inFileSize*100)
|
|
else
|
|
DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
|
|
(U32)(inFileSize>>20), (U32)(srcFileSize>>20),
|
|
(double)outFileSize/inFileSize*100);
|
|
if (ret == LZMA_STREAM_END) break;
|
|
}
|
|
|
|
lzma_end(&strm);
|
|
*readsize = inFileSize;
|
|
|
|
return outFileSize;
|
|
}
|
|
#endif
|
|
|
|
#ifdef ZSTD_LZ4COMPRESS
|
|
#if LZ4_VERSION_NUMBER <= 10600
|
|
#define LZ4F_blockLinked blockLinked
|
|
#define LZ4F_max64KB max64KB
|
|
#endif
|
|
static int FIO_LZ4_GetBlockSize_FromBlockId (int id) { return (1 << (8 + (2 * id))); }
|
|
static unsigned long long FIO_compressLz4Frame(cRess_t* ress,
|
|
const char* srcFileName, U64 const srcFileSize,
|
|
int compressionLevel, U64* readsize)
|
|
{
|
|
const size_t blockSize = FIO_LZ4_GetBlockSize_FromBlockId(LZ4F_max64KB);
|
|
unsigned long long inFileSize = 0, outFileSize = 0;
|
|
|
|
LZ4F_preferences_t prefs;
|
|
LZ4F_compressionContext_t ctx;
|
|
|
|
LZ4F_errorCode_t const errorCode = LZ4F_createCompressionContext(&ctx, LZ4F_VERSION);
|
|
if (LZ4F_isError(errorCode))
|
|
EXM_THROW(31, "zstd: failed to create lz4 compression context");
|
|
|
|
memset(&prefs, 0, sizeof(prefs));
|
|
|
|
assert(blockSize <= ress->srcBufferSize);
|
|
|
|
prefs.autoFlush = 1;
|
|
prefs.compressionLevel = compressionLevel;
|
|
prefs.frameInfo.blockMode = LZ4F_blockLinked;
|
|
prefs.frameInfo.blockSizeID = LZ4F_max64KB;
|
|
prefs.frameInfo.contentChecksumFlag = (contentChecksum_t)g_checksumFlag;
|
|
#if LZ4_VERSION_NUMBER >= 10600
|
|
prefs.frameInfo.contentSize = (srcFileSize==UTIL_FILESIZE_UNKNOWN) ? 0 : srcFileSize;
|
|
#endif
|
|
assert(LZ4F_compressBound(blockSize, &prefs) <= ress->dstBufferSize);
|
|
|
|
{
|
|
size_t readSize;
|
|
size_t headerSize = LZ4F_compressBegin(ctx, ress->dstBuffer, ress->dstBufferSize, &prefs);
|
|
if (LZ4F_isError(headerSize))
|
|
EXM_THROW(33, "File header generation failed : %s",
|
|
LZ4F_getErrorName(headerSize));
|
|
if (fwrite(ress->dstBuffer, 1, headerSize, ress->dstFile) != headerSize)
|
|
EXM_THROW(34, "Write error : cannot write header");
|
|
outFileSize += headerSize;
|
|
|
|
/* Read first block */
|
|
readSize = fread(ress->srcBuffer, (size_t)1, (size_t)blockSize, ress->srcFile);
|
|
inFileSize += readSize;
|
|
|
|
/* Main Loop */
|
|
while (readSize>0) {
|
|
size_t outSize;
|
|
|
|
/* Compress Block */
|
|
outSize = LZ4F_compressUpdate(ctx, ress->dstBuffer, ress->dstBufferSize, ress->srcBuffer, readSize, NULL);
|
|
if (LZ4F_isError(outSize))
|
|
EXM_THROW(35, "zstd: %s: lz4 compression failed : %s",
|
|
srcFileName, LZ4F_getErrorName(outSize));
|
|
outFileSize += outSize;
|
|
if (srcFileSize == UTIL_FILESIZE_UNKNOWN)
|
|
DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
|
|
(U32)(inFileSize>>20),
|
|
(double)outFileSize/inFileSize*100)
|
|
else
|
|
DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
|
|
(U32)(inFileSize>>20), (U32)(srcFileSize>>20),
|
|
(double)outFileSize/inFileSize*100);
|
|
|
|
/* Write Block */
|
|
{ size_t const sizeCheck = fwrite(ress->dstBuffer, 1, outSize, ress->dstFile);
|
|
if (sizeCheck!=outSize) EXM_THROW(36, "Write error : cannot write compressed block"); }
|
|
|
|
/* Read next block */
|
|
readSize = fread(ress->srcBuffer, (size_t)1, (size_t)blockSize, ress->srcFile);
|
|
inFileSize += readSize;
|
|
}
|
|
if (ferror(ress->srcFile)) EXM_THROW(37, "Error reading %s ", srcFileName);
|
|
|
|
/* End of Stream mark */
|
|
headerSize = LZ4F_compressEnd(ctx, ress->dstBuffer, ress->dstBufferSize, NULL);
|
|
if (LZ4F_isError(headerSize))
|
|
EXM_THROW(38, "zstd: %s: lz4 end of file generation failed : %s",
|
|
srcFileName, LZ4F_getErrorName(headerSize));
|
|
|
|
{ size_t const sizeCheck = fwrite(ress->dstBuffer, 1, headerSize, ress->dstFile);
|
|
if (sizeCheck!=headerSize) EXM_THROW(39, "Write error : cannot write end of stream"); }
|
|
outFileSize += headerSize;
|
|
}
|
|
|
|
*readsize = inFileSize;
|
|
LZ4F_freeCompressionContext(ctx);
|
|
|
|
return outFileSize;
|
|
}
|
|
#endif
|
|
|
|
|
|
/*! FIO_compressFilename_internal() :
|
|
* same as FIO_compressFilename_extRess(), with `ress.desFile` already opened.
|
|
* @return : 0 : compression completed correctly,
|
|
* 1 : missing or pb opening srcFileName
|
|
*/
|
|
static unsigned long long
|
|
FIO_compressZstdFrame(const cRess_t* ressPtr,
|
|
const char* srcFileName, U64 fileSize,
|
|
int compressionLevel, U64* readsize)
|
|
{
|
|
cRess_t const ress = *ressPtr;
|
|
FILE* const srcFile = ress.srcFile;
|
|
FILE* const dstFile = ress.dstFile;
|
|
U64 compressedfilesize = 0;
|
|
ZSTD_EndDirective directive = ZSTD_e_continue;
|
|
DISPLAYLEVEL(6, "compression using zstd format \n");
|
|
|
|
/* init */
|
|
if (fileSize != UTIL_FILESIZE_UNKNOWN)
|
|
ZSTD_CCtx_setPledgedSrcSize(ress.cctx, fileSize);
|
|
(void)compressionLevel; (void)srcFileName;
|
|
|
|
/* Main compression loop */
|
|
do {
|
|
size_t result;
|
|
/* Fill input Buffer */
|
|
size_t const inSize = fread(ress.srcBuffer, (size_t)1, ress.srcBufferSize, srcFile);
|
|
ZSTD_inBuffer inBuff = { ress.srcBuffer, inSize, 0 };
|
|
DISPLAYLEVEL(6, "fread %u bytes from source \n", (U32)inSize);
|
|
*readsize += inSize;
|
|
|
|
if ((inSize == 0) || (*readsize == fileSize))
|
|
directive = ZSTD_e_end;
|
|
|
|
result = 1;
|
|
while (inBuff.pos != inBuff.size || (directive == ZSTD_e_end && result != 0)) {
|
|
ZSTD_outBuffer outBuff = { ress.dstBuffer, ress.dstBufferSize, 0 };
|
|
CHECK_V(result, ZSTD_compress_generic(ress.cctx, &outBuff, &inBuff, directive));
|
|
|
|
/* Write compressed stream */
|
|
DISPLAYLEVEL(6, "ZSTD_compress_generic(end:%u) => intput pos(%u)<=(%u)size ; output generated %u bytes \n",
|
|
(U32)directive, (U32)inBuff.pos, (U32)inBuff.size, (U32)outBuff.pos);
|
|
if (outBuff.pos) {
|
|
size_t const sizeCheck = fwrite(ress.dstBuffer, 1, outBuff.pos, dstFile);
|
|
if (sizeCheck!=outBuff.pos)
|
|
EXM_THROW(25, "Write error : cannot write compressed block");
|
|
compressedfilesize += outBuff.pos;
|
|
}
|
|
if (READY_FOR_UPDATE()) {
|
|
ZSTD_frameProgression const zfp = ZSTD_getFrameProgression(ress.cctx);
|
|
double const cShare = (double)zfp.produced / (zfp.consumed + !zfp.consumed/*avoid div0*/) * 100;
|
|
if (g_displayLevel >= 3) {
|
|
DISPLAYUPDATE(3, "\r(L%i) Buffered :%4u MB - Consumed :%4u MB - Compressed :%4u MB => %.2f%%",
|
|
compressionLevel,
|
|
(U32)((zfp.ingested - zfp.consumed) >> 20),
|
|
(U32)(zfp.consumed >> 20),
|
|
(U32)(zfp.produced >> 20),
|
|
cShare );
|
|
} else { /* g_displayLevel == 2 */
|
|
DISPLAYLEVEL(2, "\rRead : %u ", (U32)(zfp.consumed >> 20));
|
|
if (fileSize != UTIL_FILESIZE_UNKNOWN)
|
|
DISPLAYLEVEL(2, "/ %u ", (U32)(fileSize >> 20));
|
|
DISPLAYLEVEL(2, "MB ==> %2.f%% ", cShare);
|
|
DELAY_NEXT_UPDATE();
|
|
}
|
|
}
|
|
}
|
|
} while (directive != ZSTD_e_end);
|
|
|
|
return compressedfilesize;
|
|
}
|
|
|
|
/*! FIO_compressFilename_internal() :
|
|
* same as FIO_compressFilename_extRess(), with `ress.desFile` already opened.
|
|
* @return : 0 : compression completed correctly,
|
|
* 1 : missing or pb opening srcFileName
|
|
*/
|
|
static int
|
|
FIO_compressFilename_internal(cRess_t ress,
|
|
const char* dstFileName, const char* srcFileName,
|
|
int compressionLevel)
|
|
{
|
|
U64 readsize = 0;
|
|
U64 compressedfilesize = 0;
|
|
U64 const fileSize = UTIL_getFileSize(srcFileName);
|
|
DISPLAYLEVEL(5, "%s: %u bytes \n", srcFileName, (U32)fileSize);
|
|
|
|
/* compression format selection */
|
|
switch (g_compressionType) {
|
|
default:
|
|
case FIO_zstdCompression:
|
|
compressedfilesize = FIO_compressZstdFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize);
|
|
break;
|
|
|
|
case FIO_gzipCompression:
|
|
#ifdef ZSTD_GZCOMPRESS
|
|
compressedfilesize = FIO_compressGzFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize);
|
|
#else
|
|
(void)compressionLevel;
|
|
EXM_THROW(20, "zstd: %s: file cannot be compressed as gzip (zstd compiled without ZSTD_GZCOMPRESS) -- ignored \n",
|
|
srcFileName);
|
|
#endif
|
|
break;
|
|
|
|
case FIO_xzCompression:
|
|
case FIO_lzmaCompression:
|
|
#ifdef ZSTD_LZMACOMPRESS
|
|
compressedfilesize = FIO_compressLzmaFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize, g_compressionType==FIO_lzmaCompression);
|
|
#else
|
|
(void)compressionLevel;
|
|
EXM_THROW(20, "zstd: %s: file cannot be compressed as xz/lzma (zstd compiled without ZSTD_LZMACOMPRESS) -- ignored \n",
|
|
srcFileName);
|
|
#endif
|
|
break;
|
|
|
|
case FIO_lz4Compression:
|
|
#ifdef ZSTD_LZ4COMPRESS
|
|
compressedfilesize = FIO_compressLz4Frame(&ress, srcFileName, fileSize, compressionLevel, &readsize);
|
|
#else
|
|
(void)compressionLevel;
|
|
EXM_THROW(20, "zstd: %s: file cannot be compressed as lz4 (zstd compiled without ZSTD_LZ4COMPRESS) -- ignored \n",
|
|
srcFileName);
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
/* Status */
|
|
DISPLAYLEVEL(2, "\r%79s\r", "");
|
|
DISPLAYLEVEL(2,"%-20s :%6.2f%% (%6llu => %6llu bytes, %s) \n",
|
|
srcFileName,
|
|
(double)compressedfilesize / (readsize+(!readsize)/*avoid div by zero*/) * 100,
|
|
(unsigned long long)readsize, (unsigned long long) compressedfilesize,
|
|
dstFileName);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*! FIO_compressFilename_srcFile() :
|
|
* note : ress.destFile already opened
|
|
* @return : 0 : compression completed correctly,
|
|
* 1 : missing or pb opening srcFileName
|
|
*/
|
|
static int FIO_compressFilename_srcFile(cRess_t ress,
|
|
const char* dstFileName, const char* srcFileName,
|
|
int compressionLevel)
|
|
{
|
|
int result;
|
|
|
|
/* File check */
|
|
if (UTIL_isDirectory(srcFileName)) {
|
|
DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName);
|
|
return 1;
|
|
}
|
|
|
|
ress.srcFile = FIO_openSrcFile(srcFileName);
|
|
if (!ress.srcFile) return 1; /* srcFile could not be opened */
|
|
|
|
result = FIO_compressFilename_internal(ress, dstFileName, srcFileName, compressionLevel);
|
|
|
|
fclose(ress.srcFile);
|
|
if (g_removeSrcFile /* --rm */ && !result && strcmp(srcFileName, stdinmark)) {
|
|
/* We must clear the handler, since after this point calling it would
|
|
* delete both the source and destination files.
|
|
*/
|
|
clearHandler();
|
|
if (FIO_remove(srcFileName))
|
|
EXM_THROW(1, "zstd: %s: %s", srcFileName, strerror(errno));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/*! FIO_compressFilename_dstFile() :
|
|
* @return : 0 : compression completed correctly,
|
|
* 1 : pb
|
|
*/
|
|
static int FIO_compressFilename_dstFile(cRess_t ress,
|
|
const char* dstFileName,
|
|
const char* srcFileName,
|
|
int compressionLevel)
|
|
{
|
|
int result;
|
|
stat_t statbuf;
|
|
int stat_result = 0;
|
|
|
|
DISPLAYLEVEL(6, "FIO_compressFilename_dstFile: opening dst: %s", dstFileName);
|
|
ress.dstFile = FIO_openDstFile(dstFileName);
|
|
if (ress.dstFile==NULL) return 1; /* could not open dstFileName */
|
|
/* Must ony be added after FIO_openDstFile() succeeds.
|
|
* Otherwise we may delete the destination file if at already exists, and
|
|
* the user presses Ctrl-C when asked if they wish to overwrite.
|
|
*/
|
|
addHandler(dstFileName);
|
|
|
|
if (strcmp (srcFileName, stdinmark) && UTIL_getFileStat(srcFileName, &statbuf))
|
|
stat_result = 1;
|
|
result = FIO_compressFilename_srcFile(ress, dstFileName, srcFileName, compressionLevel);
|
|
clearHandler();
|
|
|
|
if (fclose(ress.dstFile)) { /* error closing dstFile */
|
|
DISPLAYLEVEL(1, "zstd: %s: %s \n", dstFileName, strerror(errno));
|
|
result=1;
|
|
}
|
|
if ( (result != 0) /* operation failure */
|
|
&& strcmp(dstFileName, nulmark) /* special case : don't remove() /dev/null */
|
|
&& strcmp(dstFileName, stdoutmark) ) /* special case : don't remove() stdout */
|
|
FIO_remove(dstFileName); /* remove compression artefact; note don't do anything special if remove() fails */
|
|
else if ( strcmp(dstFileName, stdoutmark)
|
|
&& strcmp(dstFileName, nulmark)
|
|
&& stat_result)
|
|
UTIL_setFileStat(dstFileName, &statbuf);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
int FIO_compressFilename(const char* dstFileName, const char* srcFileName,
|
|
const char* dictFileName, int compressionLevel, ZSTD_compressionParameters* comprParams)
|
|
{
|
|
clock_t const start = clock();
|
|
U64 const fileSize = UTIL_getFileSize(srcFileName);
|
|
U64 const srcSize = (fileSize == UTIL_FILESIZE_UNKNOWN) ? ZSTD_CONTENTSIZE_UNKNOWN : fileSize;
|
|
|
|
cRess_t const ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, comprParams);
|
|
int const result = FIO_compressFilename_dstFile(ress, dstFileName, srcFileName, compressionLevel);
|
|
|
|
double const seconds = (double)(clock() - start) / CLOCKS_PER_SEC;
|
|
DISPLAYLEVEL(4, "Completed in %.2f sec \n", seconds);
|
|
|
|
FIO_freeCResources(ress);
|
|
return result;
|
|
}
|
|
|
|
|
|
int FIO_compressMultipleFilenames(const char** inFileNamesTable, unsigned nbFiles,
|
|
const char* outFileName, const char* suffix,
|
|
const char* dictFileName, int compressionLevel,
|
|
ZSTD_compressionParameters* comprParams)
|
|
{
|
|
int missed_files = 0;
|
|
size_t dfnSize = FNSPACE;
|
|
char* dstFileName = (char*)malloc(FNSPACE);
|
|
size_t const suffixSize = suffix ? strlen(suffix) : 0;
|
|
U64 const firstFileSize = UTIL_getFileSize(inFileNamesTable[0]);
|
|
U64 const firstSrcSize = (firstFileSize == UTIL_FILESIZE_UNKNOWN) ? ZSTD_CONTENTSIZE_UNKNOWN : firstFileSize;
|
|
U64 const srcSize = (nbFiles != 1) ? ZSTD_CONTENTSIZE_UNKNOWN : firstSrcSize ;
|
|
cRess_t ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, comprParams);
|
|
|
|
/* init */
|
|
if (dstFileName==NULL)
|
|
EXM_THROW(27, "FIO_compressMultipleFilenames : allocation error for dstFileName");
|
|
if (outFileName == NULL && suffix == NULL)
|
|
EXM_THROW(28, "FIO_compressMultipleFilenames : dst unknown"); /* should never happen */
|
|
|
|
/* loop on each file */
|
|
if (outFileName != NULL) {
|
|
unsigned u;
|
|
ress.dstFile = FIO_openDstFile(outFileName);
|
|
if (ress.dstFile==NULL) { /* could not open outFileName */
|
|
missed_files = nbFiles;
|
|
} else {
|
|
for (u=0; u<nbFiles; u++)
|
|
missed_files += FIO_compressFilename_srcFile(ress, outFileName, inFileNamesTable[u], compressionLevel);
|
|
if (fclose(ress.dstFile))
|
|
EXM_THROW(29, "Write error : cannot properly close stdout");
|
|
}
|
|
} else {
|
|
unsigned u;
|
|
for (u=0; u<nbFiles; u++) {
|
|
size_t const ifnSize = strlen(inFileNamesTable[u]);
|
|
if (dfnSize <= ifnSize+suffixSize+1) { /* resize name buffer */
|
|
free(dstFileName);
|
|
dfnSize = ifnSize + 20;
|
|
dstFileName = (char*)malloc(dfnSize);
|
|
if (!dstFileName) {
|
|
EXM_THROW(30, "zstd: %s", strerror(errno));
|
|
} }
|
|
strcpy(dstFileName, inFileNamesTable[u]);
|
|
strcat(dstFileName, suffix);
|
|
missed_files += FIO_compressFilename_dstFile(ress, dstFileName, inFileNamesTable[u], compressionLevel);
|
|
} }
|
|
|
|
FIO_freeCResources(ress);
|
|
free(dstFileName);
|
|
return missed_files;
|
|
}
|
|
|
|
#endif /* #ifndef ZSTD_NOCOMPRESS */
|
|
|
|
|
|
|
|
#ifndef ZSTD_NODECOMPRESS
|
|
|
|
/* **************************************************************************
|
|
* Decompression
|
|
***************************************************************************/
|
|
typedef struct {
|
|
void* srcBuffer;
|
|
size_t srcBufferSize;
|
|
size_t srcBufferLoaded;
|
|
void* dstBuffer;
|
|
size_t dstBufferSize;
|
|
ZSTD_DStream* dctx;
|
|
FILE* dstFile;
|
|
} dRess_t;
|
|
|
|
static dRess_t FIO_createDResources(const char* dictFileName)
|
|
{
|
|
dRess_t ress;
|
|
memset(&ress, 0, sizeof(ress));
|
|
|
|
/* Allocation */
|
|
ress.dctx = ZSTD_createDStream();
|
|
if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZSTD_DStream");
|
|
CHECK( ZSTD_setDStreamParameter(ress.dctx, DStream_p_maxWindowSize, g_memLimit) );
|
|
ress.srcBufferSize = ZSTD_DStreamInSize();
|
|
ress.srcBuffer = malloc(ress.srcBufferSize);
|
|
ress.dstBufferSize = ZSTD_DStreamOutSize();
|
|
ress.dstBuffer = malloc(ress.dstBufferSize);
|
|
if (!ress.srcBuffer || !ress.dstBuffer)
|
|
EXM_THROW(61, "Allocation error : not enough memory");
|
|
|
|
/* dictionary */
|
|
{ void* dictBuffer;
|
|
size_t const dictBufferSize = FIO_createDictBuffer(&dictBuffer, dictFileName);
|
|
CHECK( ZSTD_initDStream_usingDict(ress.dctx, dictBuffer, dictBufferSize) );
|
|
free(dictBuffer);
|
|
}
|
|
|
|
return ress;
|
|
}
|
|
|
|
static void FIO_freeDResources(dRess_t ress)
|
|
{
|
|
CHECK( ZSTD_freeDStream(ress.dctx) );
|
|
free(ress.srcBuffer);
|
|
free(ress.dstBuffer);
|
|
}
|
|
|
|
|
|
/** FIO_fwriteSparse() :
|
|
* @return : storedSkips, to be provided to next call to FIO_fwriteSparse() of LZ4IO_fwriteSparseEnd() */
|
|
static unsigned FIO_fwriteSparse(FILE* file, const void* buffer, size_t bufferSize, unsigned storedSkips)
|
|
{
|
|
const size_t* const bufferT = (const size_t*)buffer; /* Buffer is supposed malloc'ed, hence aligned on size_t */
|
|
size_t bufferSizeT = bufferSize / sizeof(size_t);
|
|
const size_t* const bufferTEnd = bufferT + bufferSizeT;
|
|
const size_t* ptrT = bufferT;
|
|
static const size_t segmentSizeT = (32 KB) / sizeof(size_t); /* 0-test re-attempted every 32 KB */
|
|
|
|
if (!g_sparseFileSupport) { /* normal write */
|
|
size_t const sizeCheck = fwrite(buffer, 1, bufferSize, file);
|
|
if (sizeCheck != bufferSize) EXM_THROW(70, "Write error : cannot write decoded block");
|
|
return 0;
|
|
}
|
|
|
|
/* avoid int overflow */
|
|
if (storedSkips > 1 GB) {
|
|
int const seekResult = LONG_SEEK(file, 1 GB, SEEK_CUR);
|
|
if (seekResult != 0) EXM_THROW(71, "1 GB skip error (sparse file support)");
|
|
storedSkips -= 1 GB;
|
|
}
|
|
|
|
while (ptrT < bufferTEnd) {
|
|
size_t seg0SizeT = segmentSizeT;
|
|
size_t nb0T;
|
|
|
|
/* count leading zeros */
|
|
if (seg0SizeT > bufferSizeT) seg0SizeT = bufferSizeT;
|
|
bufferSizeT -= seg0SizeT;
|
|
for (nb0T=0; (nb0T < seg0SizeT) && (ptrT[nb0T] == 0); nb0T++) ;
|
|
storedSkips += (unsigned)(nb0T * sizeof(size_t));
|
|
|
|
if (nb0T != seg0SizeT) { /* not all 0s */
|
|
int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR);
|
|
if (seekResult) EXM_THROW(72, "Sparse skip error ; try --no-sparse");
|
|
storedSkips = 0;
|
|
seg0SizeT -= nb0T;
|
|
ptrT += nb0T;
|
|
{ size_t const sizeCheck = fwrite(ptrT, sizeof(size_t), seg0SizeT, file);
|
|
if (sizeCheck != seg0SizeT)
|
|
EXM_THROW(73, "Write error : cannot write decoded block");
|
|
} }
|
|
ptrT += seg0SizeT;
|
|
}
|
|
|
|
{ static size_t const maskT = sizeof(size_t)-1;
|
|
if (bufferSize & maskT) {
|
|
/* size not multiple of sizeof(size_t) : implies end of block */
|
|
const char* const restStart = (const char*)bufferTEnd;
|
|
const char* restPtr = restStart;
|
|
size_t restSize = bufferSize & maskT;
|
|
const char* const restEnd = restStart + restSize;
|
|
for ( ; (restPtr < restEnd) && (*restPtr == 0); restPtr++) ;
|
|
storedSkips += (unsigned) (restPtr - restStart);
|
|
if (restPtr != restEnd) {
|
|
int seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR);
|
|
if (seekResult)
|
|
EXM_THROW(74, "Sparse skip error ; try --no-sparse");
|
|
storedSkips = 0;
|
|
{ size_t const sizeCheck = fwrite(restPtr, 1, restEnd - restPtr, file);
|
|
if (sizeCheck != (size_t)(restEnd - restPtr))
|
|
EXM_THROW(75, "Write error : cannot write decoded end of block");
|
|
} } } }
|
|
|
|
return storedSkips;
|
|
}
|
|
|
|
static void FIO_fwriteSparseEnd(FILE* file, unsigned storedSkips)
|
|
{
|
|
if (storedSkips-->0) { /* implies g_sparseFileSupport>0 */
|
|
int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR);
|
|
if (seekResult != 0) EXM_THROW(69, "Final skip error (sparse file)");
|
|
{ const char lastZeroByte[1] = { 0 };
|
|
size_t const sizeCheck = fwrite(lastZeroByte, 1, 1, file);
|
|
if (sizeCheck != 1)
|
|
EXM_THROW(69, "Write error : cannot write last zero");
|
|
} }
|
|
}
|
|
|
|
|
|
/** FIO_passThrough() : just copy input into output, for compatibility with gzip -df mode
|
|
@return : 0 (no error) */
|
|
static unsigned FIO_passThrough(FILE* foutput, FILE* finput, void* buffer, size_t bufferSize, size_t alreadyLoaded)
|
|
{
|
|
size_t const blockSize = MIN(64 KB, bufferSize);
|
|
size_t readFromInput = 1;
|
|
unsigned storedSkips = 0;
|
|
|
|
/* assumption : ress->srcBufferLoaded bytes already loaded and stored within buffer */
|
|
{ size_t const sizeCheck = fwrite(buffer, 1, alreadyLoaded, foutput);
|
|
if (sizeCheck != alreadyLoaded) {
|
|
DISPLAYLEVEL(1, "Pass-through write error \n");
|
|
return 1;
|
|
} }
|
|
|
|
while (readFromInput) {
|
|
readFromInput = fread(buffer, 1, blockSize, finput);
|
|
storedSkips = FIO_fwriteSparse(foutput, buffer, readFromInput, storedSkips);
|
|
}
|
|
|
|
FIO_fwriteSparseEnd(foutput, storedSkips);
|
|
return 0;
|
|
}
|
|
|
|
/* FIO_highbit64() :
|
|
* gives position of highest bit.
|
|
* note : only works for v > 0 !
|
|
*/
|
|
static unsigned FIO_highbit64(unsigned long long v)
|
|
{
|
|
unsigned count = 0;
|
|
assert(v != 0);
|
|
v >>= 1;
|
|
while (v) { v >>= 1; count++; }
|
|
return count;
|
|
}
|
|
|
|
/* FIO_zstdErrorHelp() :
|
|
* detailed error message when requested window size is too large */
|
|
static void FIO_zstdErrorHelp(dRess_t* ress, size_t err, char const* srcFileName)
|
|
{
|
|
ZSTD_frameHeader header;
|
|
|
|
/* Help message only for one specific error */
|
|
if (ZSTD_getErrorCode(err) != ZSTD_error_frameParameter_windowTooLarge)
|
|
return;
|
|
|
|
/* Try to decode the frame header */
|
|
err = ZSTD_getFrameHeader(&header, ress->srcBuffer, ress->srcBufferLoaded);
|
|
if (err == 0) {
|
|
unsigned long long const windowSize = header.windowSize;
|
|
U32 const windowLog = FIO_highbit64(windowSize) + ((windowSize & (windowSize - 1)) != 0);
|
|
U32 const windowMB = (U32)((windowSize >> 20) + ((windowSize & ((1 MB) - 1)) != 0));
|
|
assert(windowSize < (U64)(1ULL << 52));
|
|
assert(g_memLimit > 0);
|
|
DISPLAYLEVEL(1, "%s : Window size larger than maximum : %llu > %u\n",
|
|
srcFileName, windowSize, g_memLimit);
|
|
if (windowLog <= ZSTD_WINDOWLOG_MAX) {
|
|
DISPLAYLEVEL(1, "%s : Use --long=%u or --memory=%uMB\n",
|
|
srcFileName, windowLog, windowMB);
|
|
return;
|
|
}
|
|
}
|
|
DISPLAYLEVEL(1, "%s : Window log larger than ZSTD_WINDOWLOG_MAX=%u; not supported\n",
|
|
srcFileName, ZSTD_WINDOWLOG_MAX);
|
|
}
|
|
|
|
/** FIO_decompressFrame() :
|
|
* @return : size of decoded zstd frame, or an error code
|
|
*/
|
|
#define FIO_ERROR_FRAME_DECODING ((unsigned long long)(-2))
|
|
unsigned long long FIO_decompressZstdFrame(dRess_t* ress,
|
|
FILE* finput,
|
|
const char* srcFileName,
|
|
U64 alreadyDecoded)
|
|
{
|
|
U64 frameSize = 0;
|
|
U32 storedSkips = 0;
|
|
|
|
size_t const srcFileLength = strlen(srcFileName);
|
|
if (srcFileLength>20) srcFileName += srcFileLength-20; /* display last 20 characters only */
|
|
|
|
ZSTD_resetDStream(ress->dctx);
|
|
|
|
/* Header loading : ensures ZSTD_getFrameHeader() will succeed */
|
|
{ size_t const toDecode = ZSTD_FRAMEHEADERSIZE_MAX;
|
|
if (ress->srcBufferLoaded < toDecode) {
|
|
size_t const toRead = toDecode - ress->srcBufferLoaded;
|
|
void* const startPosition = (char*)ress->srcBuffer + ress->srcBufferLoaded;
|
|
ress->srcBufferLoaded += fread(startPosition, 1, toRead, finput);
|
|
} }
|
|
|
|
/* Main decompression Loop */
|
|
while (1) {
|
|
ZSTD_inBuffer inBuff = { ress->srcBuffer, ress->srcBufferLoaded, 0 };
|
|
ZSTD_outBuffer outBuff= { ress->dstBuffer, ress->dstBufferSize, 0 };
|
|
size_t const readSizeHint = ZSTD_decompressStream(ress->dctx, &outBuff, &inBuff);
|
|
if (ZSTD_isError(readSizeHint)) {
|
|
DISPLAYLEVEL(1, "%s : Decoding error (36) : %s \n",
|
|
srcFileName, ZSTD_getErrorName(readSizeHint));
|
|
FIO_zstdErrorHelp(ress, readSizeHint, srcFileName);
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
}
|
|
|
|
/* Write block */
|
|
storedSkips = FIO_fwriteSparse(ress->dstFile, ress->dstBuffer, outBuff.pos, storedSkips);
|
|
frameSize += outBuff.pos;
|
|
DISPLAYUPDATE(2, "\r%-20.20s : %u MB... ",
|
|
srcFileName, (U32)((alreadyDecoded+frameSize)>>20) );
|
|
|
|
if (inBuff.pos > 0) {
|
|
memmove(ress->srcBuffer, (char*)ress->srcBuffer + inBuff.pos, inBuff.size - inBuff.pos);
|
|
ress->srcBufferLoaded -= inBuff.pos;
|
|
}
|
|
|
|
if (readSizeHint == 0) break; /* end of frame */
|
|
if (inBuff.size != inBuff.pos) {
|
|
DISPLAYLEVEL(1, "%s : Decoding error (37) : should consume entire input \n",
|
|
srcFileName);
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
}
|
|
|
|
/* Fill input buffer */
|
|
{ size_t const toDecode = MIN(readSizeHint, ress->srcBufferSize); /* support large skippable frames */
|
|
if (ress->srcBufferLoaded < toDecode) {
|
|
size_t const toRead = toDecode - ress->srcBufferLoaded; /* > 0 */
|
|
void* const startPosition = (char*)ress->srcBuffer + ress->srcBufferLoaded;
|
|
size_t const readSize = fread(startPosition, 1, toRead, finput);
|
|
if (readSize==0) {
|
|
DISPLAYLEVEL(1, "%s : Read error (39) : premature end \n",
|
|
srcFileName);
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
}
|
|
ress->srcBufferLoaded += readSize;
|
|
} } }
|
|
|
|
FIO_fwriteSparseEnd(ress->dstFile, storedSkips);
|
|
|
|
return frameSize;
|
|
}
|
|
|
|
|
|
#ifdef ZSTD_GZDECOMPRESS
|
|
static unsigned long long FIO_decompressGzFrame(dRess_t* ress,
|
|
FILE* srcFile, const char* srcFileName)
|
|
{
|
|
unsigned long long outFileSize = 0;
|
|
z_stream strm;
|
|
int flush = Z_NO_FLUSH;
|
|
int decodingError = 0;
|
|
|
|
strm.zalloc = Z_NULL;
|
|
strm.zfree = Z_NULL;
|
|
strm.opaque = Z_NULL;
|
|
strm.next_in = 0;
|
|
strm.avail_in = 0;
|
|
/* see http://www.zlib.net/manual.html */
|
|
if (inflateInit2(&strm, 15 /* maxWindowLogSize */ + 16 /* gzip only */) != Z_OK)
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
|
|
strm.next_out = (Bytef*)ress->dstBuffer;
|
|
strm.avail_out = (uInt)ress->dstBufferSize;
|
|
strm.avail_in = (uInt)ress->srcBufferLoaded;
|
|
strm.next_in = (z_const unsigned char*)ress->srcBuffer;
|
|
|
|
for ( ; ; ) {
|
|
int ret;
|
|
if (strm.avail_in == 0) {
|
|
ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile);
|
|
if (ress->srcBufferLoaded == 0) flush = Z_FINISH;
|
|
strm.next_in = (z_const unsigned char*)ress->srcBuffer;
|
|
strm.avail_in = (uInt)ress->srcBufferLoaded;
|
|
}
|
|
ret = inflate(&strm, flush);
|
|
if (ret == Z_BUF_ERROR) {
|
|
DISPLAYLEVEL(1, "zstd: %s: premature gz end \n", srcFileName);
|
|
decodingError = 1; break;
|
|
}
|
|
if (ret != Z_OK && ret != Z_STREAM_END) {
|
|
DISPLAYLEVEL(1, "zstd: %s: inflate error %d \n", srcFileName, ret);
|
|
decodingError = 1; break;
|
|
}
|
|
{ size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
|
|
if (decompBytes) {
|
|
if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) {
|
|
DISPLAYLEVEL(1, "zstd: %s \n", strerror(errno));
|
|
decodingError = 1; break;
|
|
}
|
|
outFileSize += decompBytes;
|
|
strm.next_out = (Bytef*)ress->dstBuffer;
|
|
strm.avail_out = (uInt)ress->dstBufferSize;
|
|
}
|
|
}
|
|
if (ret == Z_STREAM_END) break;
|
|
}
|
|
|
|
if (strm.avail_in > 0)
|
|
memmove(ress->srcBuffer, strm.next_in, strm.avail_in);
|
|
ress->srcBufferLoaded = strm.avail_in;
|
|
if ( (inflateEnd(&strm) != Z_OK) /* release resources ; error detected */
|
|
&& (decodingError==0) ) {
|
|
DISPLAYLEVEL(1, "zstd: %s: inflateEnd error \n", srcFileName);
|
|
decodingError = 1;
|
|
}
|
|
return decodingError ? FIO_ERROR_FRAME_DECODING : outFileSize;
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef ZSTD_LZMADECOMPRESS
|
|
static unsigned long long FIO_decompressLzmaFrame(dRess_t* ress, FILE* srcFile, const char* srcFileName, int plain_lzma)
|
|
{
|
|
unsigned long long outFileSize = 0;
|
|
lzma_stream strm = LZMA_STREAM_INIT;
|
|
lzma_action action = LZMA_RUN;
|
|
lzma_ret initRet;
|
|
int decodingError = 0;
|
|
|
|
strm.next_in = 0;
|
|
strm.avail_in = 0;
|
|
if (plain_lzma) {
|
|
initRet = lzma_alone_decoder(&strm, UINT64_MAX); /* LZMA */
|
|
} else {
|
|
initRet = lzma_stream_decoder(&strm, UINT64_MAX, 0); /* XZ */
|
|
}
|
|
|
|
if (initRet != LZMA_OK) {
|
|
DISPLAYLEVEL(1, "zstd: %s: %s error %d \n",
|
|
plain_lzma ? "lzma_alone_decoder" : "lzma_stream_decoder",
|
|
srcFileName, initRet);
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
}
|
|
|
|
strm.next_out = (BYTE*)ress->dstBuffer;
|
|
strm.avail_out = ress->dstBufferSize;
|
|
strm.next_in = (BYTE const*)ress->srcBuffer;
|
|
strm.avail_in = ress->srcBufferLoaded;
|
|
|
|
for ( ; ; ) {
|
|
lzma_ret ret;
|
|
if (strm.avail_in == 0) {
|
|
ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile);
|
|
if (ress->srcBufferLoaded == 0) action = LZMA_FINISH;
|
|
strm.next_in = (BYTE const*)ress->srcBuffer;
|
|
strm.avail_in = ress->srcBufferLoaded;
|
|
}
|
|
ret = lzma_code(&strm, action);
|
|
|
|
if (ret == LZMA_BUF_ERROR) {
|
|
DISPLAYLEVEL(1, "zstd: %s: premature lzma end \n", srcFileName);
|
|
decodingError = 1; break;
|
|
}
|
|
if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
|
|
DISPLAYLEVEL(1, "zstd: %s: lzma_code decoding error %d \n",
|
|
srcFileName, ret);
|
|
decodingError = 1; break;
|
|
}
|
|
{ size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
|
|
if (decompBytes) {
|
|
if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) {
|
|
DISPLAYLEVEL(1, "zstd: %s \n", strerror(errno));
|
|
decodingError = 1; break;
|
|
}
|
|
outFileSize += decompBytes;
|
|
strm.next_out = (BYTE*)ress->dstBuffer;
|
|
strm.avail_out = ress->dstBufferSize;
|
|
} }
|
|
if (ret == LZMA_STREAM_END) break;
|
|
}
|
|
|
|
if (strm.avail_in > 0)
|
|
memmove(ress->srcBuffer, strm.next_in, strm.avail_in);
|
|
ress->srcBufferLoaded = strm.avail_in;
|
|
lzma_end(&strm);
|
|
return decodingError ? FIO_ERROR_FRAME_DECODING : outFileSize;
|
|
}
|
|
#endif
|
|
|
|
#ifdef ZSTD_LZ4DECOMPRESS
|
|
static unsigned long long FIO_decompressLz4Frame(dRess_t* ress,
|
|
FILE* srcFile, const char* srcFileName)
|
|
{
|
|
unsigned long long filesize = 0;
|
|
LZ4F_errorCode_t nextToLoad;
|
|
LZ4F_decompressionContext_t dCtx;
|
|
LZ4F_errorCode_t const errorCode = LZ4F_createDecompressionContext(&dCtx, LZ4F_VERSION);
|
|
int decodingError = 0;
|
|
|
|
if (LZ4F_isError(errorCode)) {
|
|
DISPLAYLEVEL(1, "zstd: failed to create lz4 decompression context \n");
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
}
|
|
|
|
/* Init feed with magic number (already consumed from FILE* sFile) */
|
|
{ size_t inSize = 4;
|
|
size_t outSize= 0;
|
|
MEM_writeLE32(ress->srcBuffer, LZ4_MAGICNUMBER);
|
|
nextToLoad = LZ4F_decompress(dCtx, ress->dstBuffer, &outSize, ress->srcBuffer, &inSize, NULL);
|
|
if (LZ4F_isError(nextToLoad)) {
|
|
DISPLAYLEVEL(1, "zstd: %s: lz4 header error : %s \n",
|
|
srcFileName, LZ4F_getErrorName(nextToLoad));
|
|
LZ4F_freeDecompressionContext(dCtx);
|
|
return FIO_ERROR_FRAME_DECODING;
|
|
} }
|
|
|
|
/* Main Loop */
|
|
for (;nextToLoad;) {
|
|
size_t readSize;
|
|
size_t pos = 0;
|
|
size_t decodedBytes = ress->dstBufferSize;
|
|
|
|
/* Read input */
|
|
if (nextToLoad > ress->srcBufferSize) nextToLoad = ress->srcBufferSize;
|
|
readSize = fread(ress->srcBuffer, 1, nextToLoad, srcFile);
|
|
if (!readSize) break; /* reached end of file or stream */
|
|
|
|
while ((pos < readSize) || (decodedBytes == ress->dstBufferSize)) { /* still to read, or still to flush */
|
|
/* Decode Input (at least partially) */
|
|
size_t remaining = readSize - pos;
|
|
decodedBytes = ress->dstBufferSize;
|
|
nextToLoad = LZ4F_decompress(dCtx, ress->dstBuffer, &decodedBytes, (char*)(ress->srcBuffer)+pos, &remaining, NULL);
|
|
if (LZ4F_isError(nextToLoad)) {
|
|
DISPLAYLEVEL(1, "zstd: %s: lz4 decompression error : %s \n",
|
|
srcFileName, LZ4F_getErrorName(nextToLoad));
|
|
decodingError = 1; nextToLoad = 0; break;
|
|
}
|
|
pos += remaining;
|
|
|
|
/* Write Block */
|
|
if (decodedBytes) {
|
|
if (fwrite(ress->dstBuffer, 1, decodedBytes, ress->dstFile) != decodedBytes) {
|
|
DISPLAYLEVEL(1, "zstd: %s \n", strerror(errno));
|
|
decodingError = 1; nextToLoad = 0; break;
|
|
}
|
|
filesize += decodedBytes;
|
|
DISPLAYUPDATE(2, "\rDecompressed : %u MB ", (unsigned)(filesize>>20));
|
|
}
|
|
|
|
if (!nextToLoad) break;
|
|
}
|
|
}
|
|
/* can be out because readSize == 0, which could be an fread() error */
|
|
if (ferror(srcFile)) {
|
|
DISPLAYLEVEL(1, "zstd: %s: read error \n", srcFileName);
|
|
decodingError=1;
|
|
}
|
|
|
|
if (nextToLoad!=0) {
|
|
DISPLAYLEVEL(1, "zstd: %s: unfinished lz4 stream \n", srcFileName);
|
|
decodingError=1;
|
|
}
|
|
|
|
LZ4F_freeDecompressionContext(dCtx);
|
|
ress->srcBufferLoaded = 0; /* LZ4F will reach exact frame boundary */
|
|
|
|
return decodingError ? FIO_ERROR_FRAME_DECODING : filesize;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
/** FIO_decompressFrames() :
|
|
* Find and decode frames inside srcFile
|
|
* srcFile presumed opened and valid
|
|
* @return : 0 : OK
|
|
* 1 : error
|
|
*/
|
|
static int FIO_decompressFrames(dRess_t ress, FILE* srcFile,
|
|
const char* dstFileName, const char* srcFileName)
|
|
{
|
|
unsigned readSomething = 0;
|
|
unsigned long long filesize = 0;
|
|
assert(srcFile != NULL);
|
|
|
|
/* for each frame */
|
|
for ( ; ; ) {
|
|
/* check magic number -> version */
|
|
size_t const toRead = 4;
|
|
const BYTE* const buf = (const BYTE*)ress.srcBuffer;
|
|
if (ress.srcBufferLoaded < toRead) /* load up to 4 bytes for header */
|
|
ress.srcBufferLoaded += fread((char*)ress.srcBuffer + ress.srcBufferLoaded,
|
|
(size_t)1, toRead - ress.srcBufferLoaded, srcFile);
|
|
if (ress.srcBufferLoaded==0) {
|
|
if (readSomething==0) { /* srcFile is empty (which is invalid) */
|
|
DISPLAYLEVEL(1, "zstd: %s: unexpected end of file \n", srcFileName);
|
|
return 1;
|
|
} /* else, just reached frame boundary */
|
|
break; /* no more input */
|
|
}
|
|
readSomething = 1; /* there is at least 1 byte in srcFile */
|
|
if (ress.srcBufferLoaded < toRead) {
|
|
DISPLAYLEVEL(1, "zstd: %s: unknown header \n", srcFileName);
|
|
return 1;
|
|
}
|
|
if (ZSTD_isFrame(buf, ress.srcBufferLoaded)) {
|
|
unsigned long long const frameSize = FIO_decompressZstdFrame(&ress, srcFile, srcFileName, filesize);
|
|
if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
|
|
filesize += frameSize;
|
|
} else if (buf[0] == 31 && buf[1] == 139) { /* gz magic number */
|
|
#ifdef ZSTD_GZDECOMPRESS
|
|
unsigned long long const frameSize = FIO_decompressGzFrame(&ress, srcFile, srcFileName);
|
|
if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
|
|
filesize += frameSize;
|
|
#else
|
|
DISPLAYLEVEL(1, "zstd: %s: gzip file cannot be uncompressed (zstd compiled without HAVE_ZLIB) -- ignored \n", srcFileName);
|
|
return 1;
|
|
#endif
|
|
} else if ((buf[0] == 0xFD && buf[1] == 0x37) /* xz magic number */
|
|
|| (buf[0] == 0x5D && buf[1] == 0x00)) { /* lzma header (no magic number) */
|
|
#ifdef ZSTD_LZMADECOMPRESS
|
|
unsigned long long const frameSize = FIO_decompressLzmaFrame(&ress, srcFile, srcFileName, buf[0] != 0xFD);
|
|
if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
|
|
filesize += frameSize;
|
|
#else
|
|
DISPLAYLEVEL(1, "zstd: %s: xz/lzma file cannot be uncompressed (zstd compiled without HAVE_LZMA) -- ignored \n", srcFileName);
|
|
return 1;
|
|
#endif
|
|
} else if (MEM_readLE32(buf) == LZ4_MAGICNUMBER) {
|
|
#ifdef ZSTD_LZ4DECOMPRESS
|
|
unsigned long long const frameSize = FIO_decompressLz4Frame(&ress, srcFile, srcFileName);
|
|
if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
|
|
filesize += frameSize;
|
|
#else
|
|
DISPLAYLEVEL(1, "zstd: %s: lz4 file cannot be uncompressed (zstd compiled without HAVE_LZ4) -- ignored \n", srcFileName);
|
|
return 1;
|
|
#endif
|
|
} else if ((g_overwrite) && !strcmp (dstFileName, stdoutmark)) { /* pass-through mode */
|
|
return FIO_passThrough(ress.dstFile, srcFile,
|
|
ress.srcBuffer, ress.srcBufferSize, ress.srcBufferLoaded);
|
|
} else {
|
|
DISPLAYLEVEL(1, "zstd: %s: unsupported format \n", srcFileName);
|
|
return 1;
|
|
} } /* for each frame */
|
|
|
|
/* Final Status */
|
|
DISPLAYLEVEL(2, "\r%79s\r", "");
|
|
DISPLAYLEVEL(2, "%-20s: %llu bytes \n", srcFileName, filesize);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/** FIO_decompressSrcFile() :
|
|
Decompression `srcFileName` into `ress.dstFile`
|
|
@return : 0 : OK
|
|
1 : operation not started
|
|
*/
|
|
static int FIO_decompressSrcFile(dRess_t ress, const char* dstFileName, const char* srcFileName)
|
|
{
|
|
FILE* srcFile;
|
|
int result;
|
|
|
|
if (UTIL_isDirectory(srcFileName)) {
|
|
DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName);
|
|
return 1;
|
|
}
|
|
|
|
srcFile = FIO_openSrcFile(srcFileName);
|
|
if (srcFile==NULL) return 1;
|
|
|
|
result = FIO_decompressFrames(ress, srcFile, dstFileName, srcFileName);
|
|
|
|
/* Close file */
|
|
if (fclose(srcFile)) {
|
|
DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno)); /* error should not happen */
|
|
return 1;
|
|
}
|
|
if ( g_removeSrcFile /* --rm */
|
|
&& (result==0) /* decompression successful */
|
|
&& strcmp(srcFileName, stdinmark) ) /* not stdin */ {
|
|
/* We must clear the handler, since after this point calling it would
|
|
* delete both the source and destination files.
|
|
*/
|
|
clearHandler();
|
|
if (FIO_remove(srcFileName)) {
|
|
/* failed to remove src file */
|
|
DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno));
|
|
return 1;
|
|
} }
|
|
return result;
|
|
}
|
|
|
|
|
|
/** FIO_decompressFile_extRess() :
|
|
decompress `srcFileName` into `dstFileName`
|
|
@return : 0 : OK
|
|
1 : operation aborted (src not available, dst already taken, etc.)
|
|
*/
|
|
static int FIO_decompressDstFile(dRess_t ress,
|
|
const char* dstFileName, const char* srcFileName)
|
|
{
|
|
int result;
|
|
stat_t statbuf;
|
|
int stat_result = 0;
|
|
|
|
ress.dstFile = FIO_openDstFile(dstFileName);
|
|
if (ress.dstFile==0) return 1;
|
|
/* Must ony be added after FIO_openDstFile() succeeds.
|
|
* Otherwise we may delete the destination file if at already exists, and
|
|
* the user presses Ctrl-C when asked if they wish to overwrite.
|
|
*/
|
|
addHandler(dstFileName);
|
|
|
|
if ( strcmp(srcFileName, stdinmark)
|
|
&& UTIL_getFileStat(srcFileName, &statbuf) )
|
|
stat_result = 1;
|
|
result = FIO_decompressSrcFile(ress, dstFileName, srcFileName);
|
|
clearHandler();
|
|
|
|
if (fclose(ress.dstFile)) {
|
|
DISPLAYLEVEL(1, "zstd: %s: %s \n", dstFileName, strerror(errno));
|
|
result = 1;
|
|
}
|
|
|
|
if ( (result != 0) /* operation failure */
|
|
&& strcmp(dstFileName, nulmark) /* special case : don't remove() /dev/null (#316) */
|
|
&& strcmp(dstFileName, stdoutmark) ) /* special case : don't remove() stdout */
|
|
FIO_remove(dstFileName); /* remove decompression artefact; note don't do anything special if remove() fails */
|
|
else { /* operation success */
|
|
if ( strcmp(dstFileName, stdoutmark) /* special case : don't chmod stdout */
|
|
&& strcmp(dstFileName, nulmark) /* special case : don't chmod /dev/null */
|
|
&& stat_result ) /* file permissions correctly extracted from src */
|
|
UTIL_setFileStat(dstFileName, &statbuf); /* transfer file permissions from src into dst */
|
|
}
|
|
|
|
signal(SIGINT, SIG_DFL);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
int FIO_decompressFilename(const char* dstFileName, const char* srcFileName,
|
|
const char* dictFileName)
|
|
{
|
|
dRess_t const ress = FIO_createDResources(dictFileName);
|
|
|
|
int const decodingError = FIO_decompressDstFile(ress, dstFileName, srcFileName);
|
|
|
|
FIO_freeDResources(ress);
|
|
return decodingError;
|
|
}
|
|
|
|
|
|
#define MAXSUFFIXSIZE 8
|
|
int FIO_decompressMultipleFilenames(const char** srcNamesTable, unsigned nbFiles,
|
|
const char* outFileName,
|
|
const char* dictFileName)
|
|
{
|
|
int skippedFiles = 0;
|
|
int missingFiles = 0;
|
|
dRess_t ress = FIO_createDResources(dictFileName);
|
|
|
|
if (outFileName) {
|
|
unsigned u;
|
|
ress.dstFile = FIO_openDstFile(outFileName);
|
|
if (ress.dstFile == 0) EXM_THROW(71, "cannot open %s", outFileName);
|
|
for (u=0; u<nbFiles; u++)
|
|
missingFiles += FIO_decompressSrcFile(ress, outFileName, srcNamesTable[u]);
|
|
if (fclose(ress.dstFile))
|
|
EXM_THROW(72, "Write error : cannot properly close output file");
|
|
} else {
|
|
size_t suffixSize;
|
|
size_t dfnSize = FNSPACE;
|
|
unsigned u;
|
|
char* dstFileName = (char*)malloc(FNSPACE);
|
|
if (dstFileName==NULL)
|
|
EXM_THROW(73, "not enough memory for dstFileName");
|
|
for (u=0; u<nbFiles; u++) { /* create dstFileName */
|
|
const char* const srcFileName = srcNamesTable[u];
|
|
const char* const suffixPtr = strrchr(srcFileName, '.');
|
|
size_t const sfnSize = strlen(srcFileName);
|
|
if (!suffixPtr) {
|
|
DISPLAYLEVEL(1, "zstd: %s: unknown suffix -- ignored \n",
|
|
srcFileName);
|
|
skippedFiles++;
|
|
continue;
|
|
}
|
|
suffixSize = strlen(suffixPtr);
|
|
if (dfnSize+suffixSize <= sfnSize+1) {
|
|
free(dstFileName);
|
|
dfnSize = sfnSize + 20;
|
|
dstFileName = (char*)malloc(dfnSize);
|
|
if (dstFileName==NULL)
|
|
EXM_THROW(74, "not enough memory for dstFileName");
|
|
}
|
|
if (sfnSize <= suffixSize
|
|
|| (strcmp(suffixPtr, GZ_EXTENSION)
|
|
&& strcmp(suffixPtr, XZ_EXTENSION)
|
|
&& strcmp(suffixPtr, ZSTD_EXTENSION)
|
|
&& strcmp(suffixPtr, LZMA_EXTENSION)
|
|
&& strcmp(suffixPtr, LZ4_EXTENSION)) ) {
|
|
const char* suffixlist = ZSTD_EXTENSION
|
|
#ifdef ZSTD_GZCOMPRESS
|
|
"/" GZ_EXTENSION
|
|
#endif
|
|
#ifdef ZSTD_LZMACOMPRESS
|
|
"/" XZ_EXTENSION "/" LZMA_EXTENSION
|
|
#endif
|
|
#ifdef ZSTD_LZ4COMPRESS
|
|
"/" LZ4_EXTENSION
|
|
#endif
|
|
;
|
|
DISPLAYLEVEL(1, "zstd: %s: unknown suffix (%s expected) -- ignored \n",
|
|
srcFileName, suffixlist);
|
|
skippedFiles++;
|
|
continue;
|
|
} else {
|
|
memcpy(dstFileName, srcFileName, sfnSize - suffixSize);
|
|
dstFileName[sfnSize-suffixSize] = '\0';
|
|
}
|
|
missingFiles += FIO_decompressDstFile(ress, dstFileName, srcFileName);
|
|
}
|
|
free(dstFileName);
|
|
}
|
|
|
|
FIO_freeDResources(ress);
|
|
return missingFiles + skippedFiles;
|
|
}
|
|
|
|
|
|
|
|
/* **************************************************************************
|
|
* .zst file info (--list command)
|
|
***************************************************************************/
|
|
|
|
typedef struct {
|
|
U64 decompressedSize;
|
|
U64 compressedSize;
|
|
U64 windowSize;
|
|
int numActualFrames;
|
|
int numSkippableFrames;
|
|
int decompUnavailable;
|
|
int usesCheck;
|
|
U32 nbFiles;
|
|
} fileInfo_t;
|
|
|
|
/** getFileInfo() :
|
|
* Reads information from file, stores in *info
|
|
* @return : 0 if successful
|
|
* 1 for frame analysis error
|
|
* 2 for file not compressed with zstd
|
|
* 3 for cases in which file could not be opened.
|
|
*/
|
|
static int getFileInfo_fileConfirmed(fileInfo_t* info, const char* inFileName){
|
|
int detectError = 0;
|
|
FILE* const srcFile = FIO_openSrcFile(inFileName);
|
|
if (srcFile == NULL) {
|
|
DISPLAY("Error: could not open source file %s\n", inFileName);
|
|
return 3;
|
|
}
|
|
info->compressedSize = UTIL_getFileSize(inFileName);
|
|
|
|
/* begin analyzing frame */
|
|
for ( ; ; ) {
|
|
BYTE headerBuffer[ZSTD_FRAMEHEADERSIZE_MAX];
|
|
size_t const numBytesRead = fread(headerBuffer, 1, sizeof(headerBuffer), srcFile);
|
|
if (numBytesRead < ZSTD_frameHeaderSize_min) {
|
|
if ( feof(srcFile)
|
|
&& (numBytesRead == 0)
|
|
&& (info->compressedSize > 0)
|
|
&& (info->compressedSize != UTIL_FILESIZE_UNKNOWN) ) {
|
|
break;
|
|
}
|
|
else if (feof(srcFile)) {
|
|
DISPLAY("Error: reached end of file with incomplete frame\n");
|
|
detectError = 2;
|
|
break;
|
|
}
|
|
else {
|
|
DISPLAY("Error: did not reach end of file but ran out of frames\n");
|
|
detectError = 1;
|
|
break;
|
|
}
|
|
}
|
|
{ U32 const magicNumber = MEM_readLE32(headerBuffer);
|
|
/* Zstandard frame */
|
|
if (magicNumber == ZSTD_MAGICNUMBER) {
|
|
ZSTD_frameHeader header;
|
|
U64 const frameContentSize = ZSTD_getFrameContentSize(headerBuffer, numBytesRead);
|
|
if (frameContentSize == ZSTD_CONTENTSIZE_ERROR || frameContentSize == ZSTD_CONTENTSIZE_UNKNOWN) {
|
|
info->decompUnavailable = 1;
|
|
} else {
|
|
info->decompressedSize += frameContentSize;
|
|
}
|
|
if (ZSTD_getFrameHeader(&header, headerBuffer, numBytesRead) != 0) {
|
|
DISPLAY("Error: could not decode frame header\n");
|
|
detectError = 1;
|
|
break;
|
|
}
|
|
info->windowSize = header.windowSize;
|
|
/* move to the end of the frame header */
|
|
{ size_t const headerSize = ZSTD_frameHeaderSize(headerBuffer, numBytesRead);
|
|
if (ZSTD_isError(headerSize)) {
|
|
DISPLAY("Error: could not determine frame header size\n");
|
|
detectError = 1;
|
|
break;
|
|
}
|
|
{ int const ret = fseek(srcFile, ((long)headerSize)-((long)numBytesRead), SEEK_CUR);
|
|
if (ret != 0) {
|
|
DISPLAY("Error: could not move to end of frame header\n");
|
|
detectError = 1;
|
|
break;
|
|
} } }
|
|
|
|
/* skip the rest of the blocks in the frame */
|
|
{ int lastBlock = 0;
|
|
do {
|
|
BYTE blockHeaderBuffer[3];
|
|
size_t const readBytes = fread(blockHeaderBuffer, 1, 3, srcFile);
|
|
if (readBytes != 3) {
|
|
DISPLAY("There was a problem reading the block header\n");
|
|
detectError = 1;
|
|
break;
|
|
}
|
|
{ U32 const blockHeader = MEM_readLE24(blockHeaderBuffer);
|
|
U32 const blockTypeID = (blockHeader >> 1) & 3;
|
|
U32 const isRLE = (blockTypeID == 1);
|
|
U32 const isWrongBlock = (blockTypeID == 3);
|
|
long const blockSize = isRLE ? 1 : (long)(blockHeader >> 3);
|
|
if (isWrongBlock) {
|
|
DISPLAY("Error: unsupported block type \n");
|
|
detectError = 1;
|
|
break;
|
|
}
|
|
lastBlock = blockHeader & 1;
|
|
{ int const ret = fseek(srcFile, blockSize, SEEK_CUR);
|
|
if (ret != 0) {
|
|
DISPLAY("Error: could not skip to end of block\n");
|
|
detectError = 1;
|
|
break;
|
|
} } }
|
|
} while (lastBlock != 1);
|
|
|
|
if (detectError) break;
|
|
}
|
|
|
|
/* check if checksum is used */
|
|
{ BYTE const frameHeaderDescriptor = headerBuffer[4];
|
|
int const contentChecksumFlag = (frameHeaderDescriptor & (1 << 2)) >> 2;
|
|
if (contentChecksumFlag) {
|
|
int const ret = fseek(srcFile, 4, SEEK_CUR);
|
|
info->usesCheck = 1;
|
|
if (ret != 0) {
|
|
DISPLAY("Error: could not skip past checksum\n");
|
|
detectError = 1;
|
|
break;
|
|
} } }
|
|
info->numActualFrames++;
|
|
}
|
|
/* Skippable frame */
|
|
else if ((magicNumber & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) {
|
|
U32 const frameSize = MEM_readLE32(headerBuffer + 4);
|
|
long const seek = (long)(8 + frameSize - numBytesRead);
|
|
int const ret = LONG_SEEK(srcFile, seek, SEEK_CUR);
|
|
if (ret != 0) {
|
|
DISPLAY("Error: could not find end of skippable frame\n");
|
|
detectError = 1;
|
|
break;
|
|
}
|
|
info->numSkippableFrames++;
|
|
}
|
|
/* unknown content */
|
|
else {
|
|
detectError = 2;
|
|
break;
|
|
}
|
|
}
|
|
} /* end analyzing frame */
|
|
fclose(srcFile);
|
|
info->nbFiles = 1;
|
|
return detectError;
|
|
}
|
|
|
|
static int getFileInfo(fileInfo_t* info, const char* srcFileName)
|
|
{
|
|
int const isAFile = UTIL_isRegularFile(srcFileName);
|
|
if (!isAFile) {
|
|
DISPLAY("Error : %s is not a file", srcFileName);
|
|
return 3;
|
|
}
|
|
return getFileInfo_fileConfirmed(info, srcFileName);
|
|
}
|
|
|
|
|
|
static void displayInfo(const char* inFileName, const fileInfo_t* info, int displayLevel){
|
|
unsigned const unit = info->compressedSize < (1 MB) ? (1 KB) : (1 MB);
|
|
const char* const unitStr = info->compressedSize < (1 MB) ? "KB" : "MB";
|
|
double const windowSizeUnit = (double)info->windowSize / unit;
|
|
double const compressedSizeUnit = (double)info->compressedSize / unit;
|
|
double const decompressedSizeUnit = (double)info->decompressedSize / unit;
|
|
double const ratio = (info->compressedSize == 0) ? 0 : ((double)info->decompressedSize)/info->compressedSize;
|
|
const char* const checkString = (info->usesCheck ? "XXH64" : "None");
|
|
if (displayLevel <= 2) {
|
|
if (!info->decompUnavailable) {
|
|
DISPLAYOUT("%6d %5d %7.2f %2s %9.2f %2s %5.3f %5s %s\n",
|
|
info->numSkippableFrames + info->numActualFrames,
|
|
info->numSkippableFrames,
|
|
compressedSizeUnit, unitStr, decompressedSizeUnit, unitStr,
|
|
ratio, checkString, inFileName);
|
|
} else {
|
|
DISPLAYOUT("%6d %5d %7.2f %2s %5s %s\n",
|
|
info->numSkippableFrames + info->numActualFrames,
|
|
info->numSkippableFrames,
|
|
compressedSizeUnit, unitStr,
|
|
checkString, inFileName);
|
|
}
|
|
} else {
|
|
DISPLAYOUT("%s \n", inFileName);
|
|
DISPLAYOUT("# Zstandard Frames: %d\n", info->numActualFrames);
|
|
if (info->numSkippableFrames)
|
|
DISPLAYOUT("# Skippable Frames: %d\n", info->numSkippableFrames);
|
|
DISPLAYOUT("Window Size: %.2f %2s (%llu B)\n",
|
|
windowSizeUnit, unitStr,
|
|
(unsigned long long)info->windowSize);
|
|
DISPLAYOUT("Compressed Size: %.2f %2s (%llu B)\n",
|
|
compressedSizeUnit, unitStr,
|
|
(unsigned long long)info->compressedSize);
|
|
if (!info->decompUnavailable) {
|
|
DISPLAYOUT("Decompressed Size: %.2f %2s (%llu B)\n",
|
|
decompressedSizeUnit, unitStr,
|
|
(unsigned long long)info->decompressedSize);
|
|
DISPLAYOUT("Ratio: %.4f\n", ratio);
|
|
}
|
|
DISPLAYOUT("Check: %s\n", checkString);
|
|
DISPLAYOUT("\n");
|
|
}
|
|
}
|
|
|
|
static fileInfo_t FIO_addFInfo(fileInfo_t fi1, fileInfo_t fi2)
|
|
{
|
|
fileInfo_t total;
|
|
memset(&total, 0, sizeof(total));
|
|
total.numActualFrames = fi1.numActualFrames + fi2.numActualFrames;
|
|
total.numSkippableFrames = fi1.numSkippableFrames + fi2.numSkippableFrames;
|
|
total.compressedSize = fi1.compressedSize + fi2.compressedSize;
|
|
total.decompressedSize = fi1.decompressedSize + fi2.decompressedSize;
|
|
total.decompUnavailable = fi1.decompUnavailable | fi2.decompUnavailable;
|
|
total.usesCheck = fi1.usesCheck & fi2.usesCheck;
|
|
total.nbFiles = fi1.nbFiles + fi2.nbFiles;
|
|
return total;
|
|
}
|
|
|
|
static int FIO_listFile(fileInfo_t* total, const char* inFileName, int displayLevel){
|
|
fileInfo_t info;
|
|
memset(&info, 0, sizeof(info));
|
|
{ int const error = getFileInfo(&info, inFileName);
|
|
if (error == 1) {
|
|
/* display error, but provide output */
|
|
DISPLAY("An error occurred while getting file info \n");
|
|
}
|
|
else if (error == 2) {
|
|
DISPLAYOUT("File %s not compressed by zstd \n", inFileName);
|
|
if (displayLevel > 2) DISPLAYOUT("\n");
|
|
return 1;
|
|
}
|
|
else if (error == 3) {
|
|
/* error occurred while opening the file */
|
|
if (displayLevel > 2) DISPLAYOUT("\n");
|
|
return 1;
|
|
}
|
|
displayInfo(inFileName, &info, displayLevel);
|
|
*total = FIO_addFInfo(*total, info);
|
|
return error;
|
|
}
|
|
}
|
|
|
|
int FIO_listMultipleFiles(unsigned numFiles, const char** filenameTable, int displayLevel){
|
|
|
|
if (!IS_CONSOLE(stdin)) {
|
|
DISPLAYOUT("zstd: --list does not support reading from standard input\n");
|
|
return 1;
|
|
}
|
|
|
|
if (numFiles == 0) {
|
|
DISPLAYOUT("No files given\n");
|
|
return 0;
|
|
}
|
|
if (displayLevel <= 2) {
|
|
DISPLAYOUT("Frames Skips Compressed Uncompressed Ratio Check Filename\n");
|
|
}
|
|
{ int error = 0;
|
|
unsigned u;
|
|
fileInfo_t total;
|
|
memset(&total, 0, sizeof(total));
|
|
total.usesCheck = 1;
|
|
for (u=0; u<numFiles;u++) {
|
|
error |= FIO_listFile(&total, filenameTable[u], displayLevel);
|
|
}
|
|
if (numFiles > 1 && displayLevel <= 2) { /* display total */
|
|
unsigned const unit = total.compressedSize < (1 MB) ? (1 KB) : (1 MB);
|
|
const char* const unitStr = total.compressedSize < (1 MB) ? "KB" : "MB";
|
|
double const compressedSizeUnit = (double)total.compressedSize / unit;
|
|
double const decompressedSizeUnit = (double)total.decompressedSize / unit;
|
|
double const ratio = (total.compressedSize == 0) ? 0 : ((double)total.decompressedSize)/total.compressedSize;
|
|
const char* const checkString = (total.usesCheck ? "XXH64" : "");
|
|
DISPLAYOUT("----------------------------------------------------------------- \n");
|
|
if (total.decompUnavailable) {
|
|
DISPLAYOUT("%6d %5d %7.2f %2s %5s %u files\n",
|
|
total.numSkippableFrames + total.numActualFrames,
|
|
total.numSkippableFrames,
|
|
compressedSizeUnit, unitStr,
|
|
checkString, total.nbFiles);
|
|
} else {
|
|
DISPLAYOUT("%6d %5d %7.2f %2s %9.2f %2s %5.3f %5s %u files\n",
|
|
total.numSkippableFrames + total.numActualFrames,
|
|
total.numSkippableFrames,
|
|
compressedSizeUnit, unitStr, decompressedSizeUnit, unitStr,
|
|
ratio, checkString, total.nbFiles);
|
|
} }
|
|
return error;
|
|
}
|
|
}
|
|
|
|
|
|
#endif /* #ifndef ZSTD_NODECOMPRESS */
|