2 * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
5 * This source code is licensed under both the BSD-style license (found in the
6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
7 * in the COPYING file in the root directory of this source tree).
8 * You may select, at your option, one of the above-listed licenses.
12 /* *************************************
14 ***************************************/
15 #ifdef _MSC_VER /* Visual */
16 # pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
17 # pragma warning(disable : 4204) /* non-constant aggregate initializer */
19 #if defined(__MINGW32__) && !defined(_POSIX_SOURCE)
20 # define _POSIX_SOURCE 1 /* disable %llu warnings with MinGW on Windows */
24 /*-*************************************
26 ***************************************/
27 #include "platform.h" /* Large Files support, SET_BINARY_MODE */
28 #include "util.h" /* UTIL_getFileSize, UTIL_isRegularFile */
29 #include <stdio.h> /* fprintf, fopen, fread, _fileno, stdin, stdout */
30 #include <stdlib.h> /* malloc, free */
31 #include <string.h> /* strcmp, strlen */
32 #include <errno.h> /* errno */
34 #if defined (_MSC_VER)
35 # include <sys/stat.h>
39 #include "bitstream.h"
43 #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_magicNumber, ZSTD_frameHeaderSize_max */
45 #if defined(ZSTD_GZCOMPRESS) || defined(ZSTD_GZDECOMPRESS)
47 # if !defined(z_const)
51 #if defined(ZSTD_LZMACOMPRESS) || defined(ZSTD_LZMADECOMPRESS)
55 #define LZ4_MAGICNUMBER 0x184D2204
56 #if defined(ZSTD_LZ4COMPRESS) || defined(ZSTD_LZ4DECOMPRESS)
57 # define LZ4F_ENABLE_OBSOLETE_ENUMS
58 # include <lz4frame.h>
63 /*-*************************************
65 ***************************************/
70 #define DICTSIZE_MAX (32 MB) /* protection against large input (attack scenario) */
75 /*-*************************************
77 ***************************************/
78 #define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
79 #define DISPLAYOUT(...) fprintf(stdout, __VA_ARGS__)
80 #define DISPLAYLEVEL(l, ...) { if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } }
81 static int g_displayLevel = 2; /* 0 : no display; 1: errors; 2: + result + interaction + warnings; 3: + progression; 4: + information */
82 void FIO_setNotificationLevel(unsigned level) { g_displayLevel=level; }
84 static const U64 g_refreshRate = SEC_TO_MICRO / 6;
85 static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER;
87 #define DISPLAYUPDATE(l, ...) { if (g_displayLevel>=l) { \
88 if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (g_displayLevel>=4)) \
89 { g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \
90 if (g_displayLevel>=4) fflush(stderr); } } }
92 #undef MIN /* in case it would be already defined */
93 #define MIN(a,b) ((a) < (b) ? (a) : (b))
96 /*-*************************************
98 ***************************************/
99 #if defined(ZSTD_DEBUG) && (ZSTD_DEBUG>=1)
103 # define assert(condition) ((void)0)
108 # define ZSTD_DEBUG 0
110 #define DEBUGLOG(l,...) if (l<=ZSTD_DEBUG) DISPLAY(__VA_ARGS__);
111 #define EXM_THROW(error, ...) \
113 DISPLAYLEVEL(1, "zstd: "); \
114 DEBUGLOG(1, "Error defined at %s, line %i : \n", __FILE__, __LINE__); \
115 DISPLAYLEVEL(1, "error %i : ", error); \
116 DISPLAYLEVEL(1, __VA_ARGS__); \
117 DISPLAYLEVEL(1, " \n"); \
121 #define CHECK_V(v, f) \
123 if (ZSTD_isError(v)) { \
124 DEBUGLOG(1, "%s \n", #f); \
125 EXM_THROW(11, "%s", ZSTD_getErrorName(v)); \
127 #define CHECK(f) { size_t err; CHECK_V(err, f); }
130 /*-************************************
131 * Signal (Ctrl-C trapping)
132 **************************************/
135 static const char* g_artefact = NULL;
136 static void INThandler(int sig)
138 assert(sig==SIGINT); (void)sig;
139 #if !defined(_MSC_VER)
140 signal(sig, SIG_IGN); /* this invocation generates a buggy warning in Visual Studio */
142 if (g_artefact) remove(g_artefact);
146 static void addHandler(char const* dstFileName)
148 if (UTIL_isRegularFile(dstFileName)) {
149 g_artefact = dstFileName;
150 signal(SIGINT, INThandler);
156 static void clearHandler(void)
158 if (g_artefact) signal(SIGINT, SIG_DFL);
163 /* ************************************************************
164 * Avoid fseek()'s 2GiB barrier with MSVC, MacOS, *BSD, MinGW
165 ***************************************************************/
166 #if defined(_MSC_VER) && _MSC_VER >= 1400
167 # define LONG_SEEK _fseeki64
168 #elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */
169 # define LONG_SEEK fseeko
170 #elif defined(__MINGW32__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS) && defined(__MSVCRT__)
171 # define LONG_SEEK fseeko64
172 #elif defined(_WIN32) && !defined(__DJGPP__)
173 # include <windows.h>
174 static int LONG_SEEK(FILE* file, __int64 offset, int origin) {
177 off.QuadPart = offset;
178 if (origin == SEEK_END)
180 else if (origin == SEEK_CUR)
181 method = FILE_CURRENT;
185 if (SetFilePointerEx((HANDLE) _get_osfhandle(_fileno(file)), off, NULL, method))
191 # define LONG_SEEK fseek
195 /*-*************************************
196 * Local Parameters - Not thread safe
197 ***************************************/
198 static FIO_compressionType_t g_compressionType = FIO_zstdCompression;
199 void FIO_setCompressionType(FIO_compressionType_t compressionType) { g_compressionType = compressionType; }
200 static U32 g_overwrite = 0;
201 void FIO_overwriteMode(void) { g_overwrite=1; }
202 static U32 g_sparseFileSupport = 1; /* 0: no sparse allowed; 1: auto (file yes, stdout no); 2: force sparse */
203 void FIO_setSparseWrite(unsigned sparse) { g_sparseFileSupport=sparse; }
204 static U32 g_dictIDFlag = 1;
205 void FIO_setDictIDFlag(unsigned dictIDFlag) { g_dictIDFlag = dictIDFlag; }
206 static U32 g_checksumFlag = 1;
207 void FIO_setChecksumFlag(unsigned checksumFlag) { g_checksumFlag = checksumFlag; }
208 static U32 g_removeSrcFile = 0;
209 void FIO_setRemoveSrcFile(unsigned flag) { g_removeSrcFile = (flag>0); }
210 static U32 g_memLimit = 0;
211 void FIO_setMemLimit(unsigned memLimit) { g_memLimit = memLimit; }
212 static U32 g_nbThreads = 1;
213 void FIO_setNbThreads(unsigned nbThreads) {
214 #ifndef ZSTD_MULTITHREAD
215 if (nbThreads > 1) DISPLAYLEVEL(2, "Note : multi-threading is disabled \n");
217 g_nbThreads = nbThreads;
219 static U32 g_blockSize = 0;
220 void FIO_setBlockSize(unsigned blockSize) {
221 if (blockSize && g_nbThreads==1)
222 DISPLAYLEVEL(2, "Setting block size is useless in single-thread mode \n");
223 g_blockSize = blockSize;
225 #define FIO_OVERLAP_LOG_NOTSET 9999
226 static U32 g_overlapLog = FIO_OVERLAP_LOG_NOTSET;
227 void FIO_setOverlapLog(unsigned overlapLog){
228 if (overlapLog && g_nbThreads==1)
229 DISPLAYLEVEL(2, "Setting overlapLog is useless in single-thread mode \n");
230 g_overlapLog = overlapLog;
232 static U32 g_ldmFlag = 0;
233 void FIO_setLdmFlag(unsigned ldmFlag) {
234 g_ldmFlag = (ldmFlag>0);
236 static U32 g_ldmHashLog = 0;
237 void FIO_setLdmHashLog(unsigned ldmHashLog) {
238 g_ldmHashLog = ldmHashLog;
240 static U32 g_ldmMinMatch = 0;
241 void FIO_setLdmMinMatch(unsigned ldmMinMatch) {
242 g_ldmMinMatch = ldmMinMatch;
245 #define FIO_LDM_PARAM_NOTSET 9999
246 static U32 g_ldmBucketSizeLog = FIO_LDM_PARAM_NOTSET;
247 void FIO_setLdmBucketSizeLog(unsigned ldmBucketSizeLog) {
248 g_ldmBucketSizeLog = ldmBucketSizeLog;
251 static U32 g_ldmHashEveryLog = FIO_LDM_PARAM_NOTSET;
252 void FIO_setLdmHashEveryLog(unsigned ldmHashEveryLog) {
253 g_ldmHashEveryLog = ldmHashEveryLog;
258 /*-*************************************
260 ***************************************/
262 * @result : Unlink `fileName`, even if it's read-only */
263 static int FIO_remove(const char* path)
265 if (!UTIL_isRegularFile(path)) {
266 DISPLAYLEVEL(2, "zstd: Refusing to remove non-regular file %s\n", path);
269 #if defined(_WIN32) || defined(WIN32)
270 /* windows doesn't allow remove read-only files,
271 * so try to make it writable first */
272 chmod(path, _S_IWRITE);
277 /** FIO_openSrcFile() :
278 * condition : `srcFileName` must be non-NULL.
279 * @result : FILE* to `srcFileName`, or NULL if it fails */
280 static FILE* FIO_openSrcFile(const char* srcFileName)
282 assert(srcFileName != NULL);
283 if (!strcmp (srcFileName, stdinmark)) {
284 DISPLAYLEVEL(4,"Using stdin for input\n");
285 SET_BINARY_MODE(stdin);
289 if (!UTIL_isRegularFile(srcFileName)) {
290 DISPLAYLEVEL(1, "zstd: %s is not a regular file -- ignored \n",
295 { FILE* const f = fopen(srcFileName, "rb");
297 DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno));
302 /** FIO_openDstFile() :
303 * condition : `dstFileName` must be non-NULL.
304 * @result : FILE* to `dstFileName`, or NULL if it fails */
305 static FILE* FIO_openDstFile(const char* dstFileName)
307 assert(dstFileName != NULL);
308 if (!strcmp (dstFileName, stdoutmark)) {
309 DISPLAYLEVEL(4,"Using stdout for output\n");
310 SET_BINARY_MODE(stdout);
311 if (g_sparseFileSupport==1) {
312 g_sparseFileSupport = 0;
313 DISPLAYLEVEL(4, "Sparse File Support is automatically disabled on stdout ; try --sparse \n");
318 if (g_sparseFileSupport == 1) {
319 g_sparseFileSupport = ZSTD_SPARSE_DEFAULT;
322 if (UTIL_isRegularFile(dstFileName)) {
324 if (!strcmp(dstFileName, nulmark)) {
325 EXM_THROW(40, "%s is unexpectedly a regular file", dstFileName);
327 /* Check if destination file already exists */
328 fCheck = fopen( dstFileName, "rb" );
329 if (fCheck != NULL) { /* dst file exists, authorization prompt */
332 if (g_displayLevel <= 1) {
333 /* No interaction possible */
334 DISPLAY("zstd: %s already exists; not overwritten \n",
338 DISPLAY("zstd: %s already exists; overwrite (y/N) ? ",
340 { int ch = getchar();
341 if ((ch!='Y') && (ch!='y')) {
342 DISPLAY(" not overwritten \n");
345 /* flush rest of input line */
346 while ((ch!=EOF) && (ch!='\n')) ch = getchar();
349 FIO_remove(dstFileName);
352 { FILE* const f = fopen( dstFileName, "wb" );
354 DISPLAYLEVEL(1, "zstd: %s: %s\n", dstFileName, strerror(errno));
360 /*! FIO_createDictBuffer() :
361 * creates a buffer, pointed by `*bufferPtr`,
362 * loads `filename` content into it, up to DICTSIZE_MAX bytes.
363 * @return : loaded size
364 * if fileName==NULL, returns 0 and a NULL pointer
366 static size_t FIO_createDictBuffer(void** bufferPtr, const char* fileName)
371 assert(bufferPtr != NULL);
373 if (fileName == NULL) return 0;
375 DISPLAYLEVEL(4,"Loading %s as dictionary \n", fileName);
376 fileHandle = fopen(fileName, "rb");
377 if (fileHandle==NULL) EXM_THROW(31, "%s: %s", fileName, strerror(errno));
378 fileSize = UTIL_getFileSize(fileName);
379 if (fileSize > DICTSIZE_MAX) {
380 EXM_THROW(32, "Dictionary file %s is too large (> %u MB)",
381 fileName, DICTSIZE_MAX >> 20); /* avoid extreme cases */
383 *bufferPtr = malloc((size_t)fileSize);
384 if (*bufferPtr==NULL) EXM_THROW(34, "%s", strerror(errno));
385 { size_t const readSize = fread(*bufferPtr, 1, (size_t)fileSize, fileHandle);
386 if (readSize!=fileSize)
387 EXM_THROW(35, "Error reading dictionary file %s", fileName);
390 return (size_t)fileSize;
393 #ifndef ZSTD_NOCOMPRESS
395 /*-**********************************************************************
397 ************************************************************************/
402 size_t srcBufferSize;
404 size_t dstBufferSize;
408 static cRess_t FIO_createCResources(const char* dictFileName, int cLevel,
410 ZSTD_compressionParameters* comprParams) {
412 memset(&ress, 0, sizeof(ress));
414 ress.cctx = ZSTD_createCCtx();
415 if (ress.cctx == NULL)
416 EXM_THROW(30, "allocation error : can't create ZSTD_CCtx");
417 ress.srcBufferSize = ZSTD_CStreamInSize();
418 ress.srcBuffer = malloc(ress.srcBufferSize);
419 ress.dstBufferSize = ZSTD_CStreamOutSize();
420 ress.dstBuffer = malloc(ress.dstBufferSize);
421 if (!ress.srcBuffer || !ress.dstBuffer)
422 EXM_THROW(31, "allocation error : not enough memory");
424 /* Advances parameters, including dictionary */
426 size_t const dictBuffSize = FIO_createDictBuffer(&dictBuffer, dictFileName); /* works with dictFileName==NULL */
427 if (dictFileName && (dictBuffer==NULL))
428 EXM_THROW(32, "allocation error : can't create dictBuffer");
430 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_contentSizeFlag, 1) ); /* always enable content size when available (note: supposed to be default) */
431 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_dictIDFlag, g_dictIDFlag) );
432 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_checksumFlag, g_checksumFlag) );
433 /* compression level */
434 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_compressionLevel, cLevel) );
435 /* long distance matching */
436 CHECK( ZSTD_CCtx_setParameter(
437 ress.cctx, ZSTD_p_enableLongDistanceMatching, g_ldmFlag) );
438 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmHashLog, g_ldmHashLog) );
439 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmMinMatch, g_ldmMinMatch) );
440 if (g_ldmBucketSizeLog != FIO_LDM_PARAM_NOTSET) {
441 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmBucketSizeLog, g_ldmBucketSizeLog) );
443 if (g_ldmHashEveryLog != FIO_LDM_PARAM_NOTSET) {
444 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmHashEveryLog, g_ldmHashEveryLog) );
446 /* compression parameters */
447 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_windowLog, comprParams->windowLog) );
448 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_chainLog, comprParams->chainLog) );
449 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_hashLog, comprParams->hashLog) );
450 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_searchLog, comprParams->searchLog) );
451 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_minMatch, comprParams->searchLength) );
452 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_targetLength, comprParams->targetLength) );
453 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_compressionStrategy, (U32)comprParams->strategy) );
454 /* multi-threading */
455 DISPLAYLEVEL(5,"set nb threads = %u \n", g_nbThreads);
456 CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_nbThreads, g_nbThreads) );
458 CHECK( ZSTD_CCtx_setPledgedSrcSize(ress.cctx, srcSize) ); /* just for dictionary loading, for compression parameters adaptation */
459 CHECK( ZSTD_CCtx_loadDictionary(ress.cctx, dictBuffer, dictBuffSize) );
460 CHECK( ZSTD_CCtx_setPledgedSrcSize(ress.cctx, ZSTD_CONTENTSIZE_UNKNOWN) ); /* reset */
468 static void FIO_freeCResources(cRess_t ress)
470 free(ress.srcBuffer);
471 free(ress.dstBuffer);
472 ZSTD_freeCStream(ress.cctx); /* never fails */
476 #ifdef ZSTD_GZCOMPRESS
477 static unsigned long long FIO_compressGzFrame(cRess_t* ress,
478 const char* srcFileName, U64 const srcFileSize,
479 int compressionLevel, U64* readsize)
481 unsigned long long inFileSize = 0, outFileSize = 0;
485 if (compressionLevel > Z_BEST_COMPRESSION)
486 compressionLevel = Z_BEST_COMPRESSION;
488 strm.zalloc = Z_NULL;
490 strm.opaque = Z_NULL;
492 ret = deflateInit2(&strm, compressionLevel, Z_DEFLATED,
493 15 /* maxWindowLogSize */ + 16 /* gzip only */,
494 8, Z_DEFAULT_STRATEGY); /* see http://www.zlib.net/manual.html */
496 EXM_THROW(71, "zstd: %s: deflateInit2 error %d \n", srcFileName, ret);
500 strm.next_out = (Bytef*)ress->dstBuffer;
501 strm.avail_out = (uInt)ress->dstBufferSize;
504 if (strm.avail_in == 0) {
505 size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile);
506 if (inSize == 0) break;
507 inFileSize += inSize;
508 strm.next_in = (z_const unsigned char*)ress->srcBuffer;
509 strm.avail_in = (uInt)inSize;
511 ret = deflate(&strm, Z_NO_FLUSH);
513 EXM_THROW(72, "zstd: %s: deflate error %d \n", srcFileName, ret);
514 { size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
516 if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes)
517 EXM_THROW(73, "Write error : cannot write to output file");
518 outFileSize += decompBytes;
519 strm.next_out = (Bytef*)ress->dstBuffer;
520 strm.avail_out = (uInt)ress->dstBufferSize;
523 if (srcFileSize == UTIL_FILESIZE_UNKNOWN)
524 DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
525 (U32)(inFileSize>>20),
526 (double)outFileSize/inFileSize*100)
528 DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
529 (U32)(inFileSize>>20), (U32)(srcFileSize>>20),
530 (double)outFileSize/inFileSize*100);
534 ret = deflate(&strm, Z_FINISH);
535 { size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
537 if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes)
538 EXM_THROW(75, "Write error : cannot write to output file");
539 outFileSize += decompBytes;
540 strm.next_out = (Bytef*)ress->dstBuffer;
541 strm.avail_out = (uInt)ress->dstBufferSize;
543 if (ret == Z_STREAM_END) break;
544 if (ret != Z_BUF_ERROR)
545 EXM_THROW(77, "zstd: %s: deflate error %d \n", srcFileName, ret);
548 ret = deflateEnd(&strm);
550 EXM_THROW(79, "zstd: %s: deflateEnd error %d \n", srcFileName, ret);
551 *readsize = inFileSize;
558 #ifdef ZSTD_LZMACOMPRESS
559 static unsigned long long FIO_compressLzmaFrame(cRess_t* ress,
560 const char* srcFileName, U64 const srcFileSize,
561 int compressionLevel, U64* readsize, int plain_lzma)
563 unsigned long long inFileSize = 0, outFileSize = 0;
564 lzma_stream strm = LZMA_STREAM_INIT;
565 lzma_action action = LZMA_RUN;
568 if (compressionLevel < 0) compressionLevel = 0;
569 if (compressionLevel > 9) compressionLevel = 9;
572 lzma_options_lzma opt_lzma;
573 if (lzma_lzma_preset(&opt_lzma, compressionLevel))
574 EXM_THROW(71, "zstd: %s: lzma_lzma_preset error", srcFileName);
575 ret = lzma_alone_encoder(&strm, &opt_lzma); /* LZMA */
577 EXM_THROW(71, "zstd: %s: lzma_alone_encoder error %d", srcFileName, ret);
579 ret = lzma_easy_encoder(&strm, compressionLevel, LZMA_CHECK_CRC64); /* XZ */
581 EXM_THROW(71, "zstd: %s: lzma_easy_encoder error %d", srcFileName, ret);
586 strm.next_out = (BYTE*)ress->dstBuffer;
587 strm.avail_out = ress->dstBufferSize;
590 if (strm.avail_in == 0) {
591 size_t const inSize = fread(ress->srcBuffer, 1, ress->srcBufferSize, ress->srcFile);
592 if (inSize == 0) action = LZMA_FINISH;
593 inFileSize += inSize;
594 strm.next_in = (BYTE const*)ress->srcBuffer;
595 strm.avail_in = inSize;
598 ret = lzma_code(&strm, action);
600 if (ret != LZMA_OK && ret != LZMA_STREAM_END)
601 EXM_THROW(72, "zstd: %s: lzma_code encoding error %d", srcFileName, ret);
602 { size_t const compBytes = ress->dstBufferSize - strm.avail_out;
604 if (fwrite(ress->dstBuffer, 1, compBytes, ress->dstFile) != compBytes)
605 EXM_THROW(73, "Write error : cannot write to output file");
606 outFileSize += compBytes;
607 strm.next_out = (BYTE*)ress->dstBuffer;
608 strm.avail_out = ress->dstBufferSize;
610 if (srcFileSize == UTIL_FILESIZE_UNKNOWN)
611 DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
612 (U32)(inFileSize>>20),
613 (double)outFileSize/inFileSize*100)
615 DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
616 (U32)(inFileSize>>20), (U32)(srcFileSize>>20),
617 (double)outFileSize/inFileSize*100);
618 if (ret == LZMA_STREAM_END) break;
622 *readsize = inFileSize;
628 #ifdef ZSTD_LZ4COMPRESS
629 #if LZ4_VERSION_NUMBER <= 10600
630 #define LZ4F_blockLinked blockLinked
631 #define LZ4F_max64KB max64KB
633 static int FIO_LZ4_GetBlockSize_FromBlockId (int id) { return (1 << (8 + (2 * id))); }
634 static unsigned long long FIO_compressLz4Frame(cRess_t* ress,
635 const char* srcFileName, U64 const srcFileSize,
636 int compressionLevel, U64* readsize)
638 const size_t blockSize = FIO_LZ4_GetBlockSize_FromBlockId(LZ4F_max64KB);
639 unsigned long long inFileSize = 0, outFileSize = 0;
641 LZ4F_preferences_t prefs;
642 LZ4F_compressionContext_t ctx;
644 LZ4F_errorCode_t const errorCode = LZ4F_createCompressionContext(&ctx, LZ4F_VERSION);
645 if (LZ4F_isError(errorCode))
646 EXM_THROW(31, "zstd: failed to create lz4 compression context");
648 memset(&prefs, 0, sizeof(prefs));
650 assert(blockSize <= ress->srcBufferSize);
653 prefs.compressionLevel = compressionLevel;
654 prefs.frameInfo.blockMode = LZ4F_blockLinked;
655 prefs.frameInfo.blockSizeID = LZ4F_max64KB;
656 prefs.frameInfo.contentChecksumFlag = (contentChecksum_t)g_checksumFlag;
657 #if LZ4_VERSION_NUMBER >= 10600
658 prefs.frameInfo.contentSize = (srcFileSize==UTIL_FILESIZE_UNKNOWN) ? 0 : srcFileSize;
660 assert(LZ4F_compressBound(blockSize, &prefs) <= ress->dstBufferSize);
664 size_t headerSize = LZ4F_compressBegin(ctx, ress->dstBuffer, ress->dstBufferSize, &prefs);
665 if (LZ4F_isError(headerSize))
666 EXM_THROW(33, "File header generation failed : %s",
667 LZ4F_getErrorName(headerSize));
668 if (fwrite(ress->dstBuffer, 1, headerSize, ress->dstFile) != headerSize)
669 EXM_THROW(34, "Write error : cannot write header");
670 outFileSize += headerSize;
672 /* Read first block */
673 readSize = fread(ress->srcBuffer, (size_t)1, (size_t)blockSize, ress->srcFile);
674 inFileSize += readSize;
681 outSize = LZ4F_compressUpdate(ctx, ress->dstBuffer, ress->dstBufferSize, ress->srcBuffer, readSize, NULL);
682 if (LZ4F_isError(outSize))
683 EXM_THROW(35, "zstd: %s: lz4 compression failed : %s",
684 srcFileName, LZ4F_getErrorName(outSize));
685 outFileSize += outSize;
686 if (srcFileSize == UTIL_FILESIZE_UNKNOWN)
687 DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
688 (U32)(inFileSize>>20),
689 (double)outFileSize/inFileSize*100)
691 DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
692 (U32)(inFileSize>>20), (U32)(srcFileSize>>20),
693 (double)outFileSize/inFileSize*100);
696 { size_t const sizeCheck = fwrite(ress->dstBuffer, 1, outSize, ress->dstFile);
697 if (sizeCheck!=outSize) EXM_THROW(36, "Write error : cannot write compressed block"); }
699 /* Read next block */
700 readSize = fread(ress->srcBuffer, (size_t)1, (size_t)blockSize, ress->srcFile);
701 inFileSize += readSize;
703 if (ferror(ress->srcFile)) EXM_THROW(37, "Error reading %s ", srcFileName);
705 /* End of Stream mark */
706 headerSize = LZ4F_compressEnd(ctx, ress->dstBuffer, ress->dstBufferSize, NULL);
707 if (LZ4F_isError(headerSize))
708 EXM_THROW(38, "zstd: %s: lz4 end of file generation failed : %s",
709 srcFileName, LZ4F_getErrorName(headerSize));
711 { size_t const sizeCheck = fwrite(ress->dstBuffer, 1, headerSize, ress->dstFile);
712 if (sizeCheck!=headerSize) EXM_THROW(39, "Write error : cannot write end of stream"); }
713 outFileSize += headerSize;
716 *readsize = inFileSize;
717 LZ4F_freeCompressionContext(ctx);
724 /*! FIO_compressFilename_internal() :
725 * same as FIO_compressFilename_extRess(), with `ress.desFile` already opened.
726 * @return : 0 : compression completed correctly,
727 * 1 : missing or pb opening srcFileName
729 static int FIO_compressFilename_internal(cRess_t ress,
730 const char* dstFileName, const char* srcFileName, int compressionLevel)
732 FILE* const srcFile = ress.srcFile;
733 FILE* const dstFile = ress.dstFile;
735 U64 compressedfilesize = 0;
736 U64 const fileSize = UTIL_getFileSize(srcFileName);
737 ZSTD_EndDirective directive = ZSTD_e_continue;
738 DISPLAYLEVEL(5, "%s: %u bytes \n", srcFileName, (U32)fileSize);
740 switch (g_compressionType) {
741 case FIO_zstdCompression:
744 case FIO_gzipCompression:
745 #ifdef ZSTD_GZCOMPRESS
746 compressedfilesize = FIO_compressGzFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize);
748 (void)compressionLevel;
749 EXM_THROW(20, "zstd: %s: file cannot be compressed as gzip (zstd compiled without ZSTD_GZCOMPRESS) -- ignored \n",
754 case FIO_xzCompression:
755 case FIO_lzmaCompression:
756 #ifdef ZSTD_LZMACOMPRESS
757 compressedfilesize = FIO_compressLzmaFrame(&ress, srcFileName, fileSize, compressionLevel, &readsize, g_compressionType==FIO_lzmaCompression);
759 (void)compressionLevel;
760 EXM_THROW(20, "zstd: %s: file cannot be compressed as xz/lzma (zstd compiled without ZSTD_LZMACOMPRESS) -- ignored \n",
765 case FIO_lz4Compression:
766 #ifdef ZSTD_LZ4COMPRESS
767 compressedfilesize = FIO_compressLz4Frame(&ress, srcFileName, fileSize, compressionLevel, &readsize);
769 (void)compressionLevel;
770 EXM_THROW(20, "zstd: %s: file cannot be compressed as lz4 (zstd compiled without ZSTD_LZ4COMPRESS) -- ignored \n",
777 if (fileSize != UTIL_FILESIZE_UNKNOWN)
778 ZSTD_CCtx_setPledgedSrcSize(ress.cctx, fileSize);
780 /* Main compression loop */
783 /* Fill input Buffer */
784 size_t const inSize = fread(ress.srcBuffer, (size_t)1, ress.srcBufferSize, srcFile);
785 ZSTD_inBuffer inBuff = { ress.srcBuffer, inSize, 0 };
788 if (inSize == 0 || (fileSize != UTIL_FILESIZE_UNKNOWN && readsize == fileSize))
789 directive = ZSTD_e_end;
792 while (inBuff.pos != inBuff.size || (directive == ZSTD_e_end && result != 0)) {
793 ZSTD_outBuffer outBuff = { ress.dstBuffer, ress.dstBufferSize, 0 };
794 CHECK_V(result, ZSTD_compress_generic(ress.cctx, &outBuff, &inBuff, directive));
796 /* Write compressed stream */
797 DISPLAYLEVEL(6, "ZSTD_compress_generic,ZSTD_e_continue: generated %u bytes \n",
800 size_t const sizeCheck = fwrite(ress.dstBuffer, 1, outBuff.pos, dstFile);
801 if (sizeCheck!=outBuff.pos)
802 EXM_THROW(25, "Write error : cannot write compressed block into %s", dstFileName);
803 compressedfilesize += outBuff.pos;
806 if (g_nbThreads > 1) {
807 if (fileSize == UTIL_FILESIZE_UNKNOWN)
808 DISPLAYUPDATE(2, "\rRead : %u MB", (U32)(readsize>>20))
810 DISPLAYUPDATE(2, "\rRead : %u / %u MB",
811 (U32)(readsize>>20), (U32)(fileSize>>20));
813 if (fileSize == UTIL_FILESIZE_UNKNOWN)
814 DISPLAYUPDATE(2, "\rRead : %u MB ==> %.2f%%",
816 (double)compressedfilesize/readsize*100)
818 DISPLAYUPDATE(2, "\rRead : %u / %u MB ==> %.2f%%",
819 (U32)(readsize>>20), (U32)(fileSize>>20),
820 (double)compressedfilesize/readsize*100);
822 } while (directive != ZSTD_e_end);
826 DISPLAYLEVEL(2, "\r%79s\r", "");
827 DISPLAYLEVEL(2,"%-20s :%6.2f%% (%6llu => %6llu bytes, %s) \n", srcFileName,
828 (double)compressedfilesize/(readsize+(!readsize) /* avoid div by zero */ )*100,
829 (unsigned long long)readsize, (unsigned long long) compressedfilesize,
836 /*! FIO_compressFilename_srcFile() :
837 * note : ress.destFile already opened
838 * @return : 0 : compression completed correctly,
839 * 1 : missing or pb opening srcFileName
841 static int FIO_compressFilename_srcFile(cRess_t ress,
842 const char* dstFileName, const char* srcFileName,
843 int compressionLevel)
848 if (UTIL_isDirectory(srcFileName)) {
849 DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName);
853 ress.srcFile = FIO_openSrcFile(srcFileName);
854 if (!ress.srcFile) return 1; /* srcFile could not be opened */
856 result = FIO_compressFilename_internal(ress, dstFileName, srcFileName, compressionLevel);
858 fclose(ress.srcFile);
859 if (g_removeSrcFile /* --rm */ && !result && strcmp(srcFileName, stdinmark)) {
860 /* We must clear the handler, since after this point calling it would
861 * delete both the source and destination files.
864 if (remove(srcFileName))
865 EXM_THROW(1, "zstd: %s: %s", srcFileName, strerror(errno));
871 /*! FIO_compressFilename_dstFile() :
872 * @return : 0 : compression completed correctly,
875 static int FIO_compressFilename_dstFile(cRess_t ress,
876 const char* dstFileName,
877 const char* srcFileName,
878 int compressionLevel)
884 ress.dstFile = FIO_openDstFile(dstFileName);
885 if (ress.dstFile==NULL) return 1; /* could not open dstFileName */
886 /* Must ony be added after FIO_openDstFile() succeeds.
887 * Otherwise we may delete the destination file if at already exists, and
888 * the user presses Ctrl-C when asked if they wish to overwrite.
890 addHandler(dstFileName);
892 if (strcmp (srcFileName, stdinmark) && UTIL_getFileStat(srcFileName, &statbuf))
894 result = FIO_compressFilename_srcFile(ress, dstFileName, srcFileName, compressionLevel);
897 if (fclose(ress.dstFile)) { /* error closing dstFile */
898 DISPLAYLEVEL(1, "zstd: %s: %s \n", dstFileName, strerror(errno));
901 if (result!=0) { /* remove operation artefact */
902 if (remove(dstFileName))
903 EXM_THROW(1, "zstd: %s: %s", dstFileName, strerror(errno));
905 else if (strcmp (dstFileName, stdoutmark) && stat_result)
906 UTIL_setFileStat(dstFileName, &statbuf);
912 int FIO_compressFilename(const char* dstFileName, const char* srcFileName,
913 const char* dictFileName, int compressionLevel, ZSTD_compressionParameters* comprParams)
915 clock_t const start = clock();
916 U64 const fileSize = UTIL_getFileSize(srcFileName);
917 U64 const srcSize = (fileSize == UTIL_FILESIZE_UNKNOWN) ? ZSTD_CONTENTSIZE_UNKNOWN : fileSize;
919 cRess_t const ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, comprParams);
920 int const result = FIO_compressFilename_dstFile(ress, dstFileName, srcFileName, compressionLevel);
922 double const seconds = (double)(clock() - start) / CLOCKS_PER_SEC;
923 DISPLAYLEVEL(4, "Completed in %.2f sec \n", seconds);
925 FIO_freeCResources(ress);
930 int FIO_compressMultipleFilenames(const char** inFileNamesTable, unsigned nbFiles,
931 const char* outFileName, const char* suffix,
932 const char* dictFileName, int compressionLevel,
933 ZSTD_compressionParameters* comprParams)
935 int missed_files = 0;
936 size_t dfnSize = FNSPACE;
937 char* dstFileName = (char*)malloc(FNSPACE);
938 size_t const suffixSize = suffix ? strlen(suffix) : 0;
939 U64 const firstFileSize = UTIL_getFileSize(inFileNamesTable[0]);
940 U64 const firstSrcSize = (firstFileSize == UTIL_FILESIZE_UNKNOWN) ? ZSTD_CONTENTSIZE_UNKNOWN : firstFileSize;
941 U64 const srcSize = (nbFiles != 1) ? ZSTD_CONTENTSIZE_UNKNOWN : firstSrcSize ;
942 cRess_t ress = FIO_createCResources(dictFileName, compressionLevel, srcSize, comprParams);
945 if (dstFileName==NULL)
946 EXM_THROW(27, "FIO_compressMultipleFilenames : allocation error for dstFileName");
947 if (outFileName == NULL && suffix == NULL)
948 EXM_THROW(28, "FIO_compressMultipleFilenames : dst unknown"); /* should never happen */
950 /* loop on each file */
951 if (outFileName != NULL) {
953 ress.dstFile = FIO_openDstFile(outFileName);
954 for (u=0; u<nbFiles; u++)
955 missed_files += FIO_compressFilename_srcFile(ress, outFileName, inFileNamesTable[u], compressionLevel);
956 if (fclose(ress.dstFile))
957 EXM_THROW(29, "Write error : cannot properly close stdout");
960 for (u=0; u<nbFiles; u++) {
961 size_t const ifnSize = strlen(inFileNamesTable[u]);
962 if (dfnSize <= ifnSize+suffixSize+1) { /* resize name buffer */
964 dfnSize = ifnSize + 20;
965 dstFileName = (char*)malloc(dfnSize);
967 EXM_THROW(30, "zstd: %s", strerror(errno));
969 strcpy(dstFileName, inFileNamesTable[u]);
970 strcat(dstFileName, suffix);
971 missed_files += FIO_compressFilename_dstFile(ress, dstFileName, inFileNamesTable[u], compressionLevel);
974 FIO_freeCResources(ress);
979 #endif /* #ifndef ZSTD_NOCOMPRESS */
983 #ifndef ZSTD_NODECOMPRESS
985 /* **************************************************************************
987 ***************************************************************************/
990 size_t srcBufferSize;
991 size_t srcBufferLoaded;
993 size_t dstBufferSize;
998 static dRess_t FIO_createDResources(const char* dictFileName)
1001 memset(&ress, 0, sizeof(ress));
1004 ress.dctx = ZSTD_createDStream();
1005 if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZSTD_DStream");
1006 CHECK( ZSTD_setDStreamParameter(ress.dctx, DStream_p_maxWindowSize, g_memLimit) );
1007 ress.srcBufferSize = ZSTD_DStreamInSize();
1008 ress.srcBuffer = malloc(ress.srcBufferSize);
1009 ress.dstBufferSize = ZSTD_DStreamOutSize();
1010 ress.dstBuffer = malloc(ress.dstBufferSize);
1011 if (!ress.srcBuffer || !ress.dstBuffer)
1012 EXM_THROW(61, "Allocation error : not enough memory");
1016 size_t const dictBufferSize = FIO_createDictBuffer(&dictBuffer, dictFileName);
1017 CHECK( ZSTD_initDStream_usingDict(ress.dctx, dictBuffer, dictBufferSize) );
1024 static void FIO_freeDResources(dRess_t ress)
1026 CHECK( ZSTD_freeDStream(ress.dctx) );
1027 free(ress.srcBuffer);
1028 free(ress.dstBuffer);
1032 /** FIO_fwriteSparse() :
1033 * @return : storedSkips, to be provided to next call to FIO_fwriteSparse() of LZ4IO_fwriteSparseEnd() */
1034 static unsigned FIO_fwriteSparse(FILE* file, const void* buffer, size_t bufferSize, unsigned storedSkips)
1036 const size_t* const bufferT = (const size_t*)buffer; /* Buffer is supposed malloc'ed, hence aligned on size_t */
1037 size_t bufferSizeT = bufferSize / sizeof(size_t);
1038 const size_t* const bufferTEnd = bufferT + bufferSizeT;
1039 const size_t* ptrT = bufferT;
1040 static const size_t segmentSizeT = (32 KB) / sizeof(size_t); /* 0-test re-attempted every 32 KB */
1042 if (!g_sparseFileSupport) { /* normal write */
1043 size_t const sizeCheck = fwrite(buffer, 1, bufferSize, file);
1044 if (sizeCheck != bufferSize) EXM_THROW(70, "Write error : cannot write decoded block");
1048 /* avoid int overflow */
1049 if (storedSkips > 1 GB) {
1050 int const seekResult = LONG_SEEK(file, 1 GB, SEEK_CUR);
1051 if (seekResult != 0) EXM_THROW(71, "1 GB skip error (sparse file support)");
1052 storedSkips -= 1 GB;
1055 while (ptrT < bufferTEnd) {
1056 size_t seg0SizeT = segmentSizeT;
1059 /* count leading zeros */
1060 if (seg0SizeT > bufferSizeT) seg0SizeT = bufferSizeT;
1061 bufferSizeT -= seg0SizeT;
1062 for (nb0T=0; (nb0T < seg0SizeT) && (ptrT[nb0T] == 0); nb0T++) ;
1063 storedSkips += (unsigned)(nb0T * sizeof(size_t));
1065 if (nb0T != seg0SizeT) { /* not all 0s */
1066 int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR);
1067 if (seekResult) EXM_THROW(72, "Sparse skip error ; try --no-sparse");
1071 { size_t const sizeCheck = fwrite(ptrT, sizeof(size_t), seg0SizeT, file);
1072 if (sizeCheck != seg0SizeT)
1073 EXM_THROW(73, "Write error : cannot write decoded block");
1078 { static size_t const maskT = sizeof(size_t)-1;
1079 if (bufferSize & maskT) {
1080 /* size not multiple of sizeof(size_t) : implies end of block */
1081 const char* const restStart = (const char*)bufferTEnd;
1082 const char* restPtr = restStart;
1083 size_t restSize = bufferSize & maskT;
1084 const char* const restEnd = restStart + restSize;
1085 for ( ; (restPtr < restEnd) && (*restPtr == 0); restPtr++) ;
1086 storedSkips += (unsigned) (restPtr - restStart);
1087 if (restPtr != restEnd) {
1088 int seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR);
1090 EXM_THROW(74, "Sparse skip error ; try --no-sparse");
1092 { size_t const sizeCheck = fwrite(restPtr, 1, restEnd - restPtr, file);
1093 if (sizeCheck != (size_t)(restEnd - restPtr))
1094 EXM_THROW(75, "Write error : cannot write decoded end of block");
1100 static void FIO_fwriteSparseEnd(FILE* file, unsigned storedSkips)
1102 if (storedSkips-->0) { /* implies g_sparseFileSupport>0 */
1103 int const seekResult = LONG_SEEK(file, storedSkips, SEEK_CUR);
1104 if (seekResult != 0) EXM_THROW(69, "Final skip error (sparse file)");
1105 { const char lastZeroByte[1] = { 0 };
1106 size_t const sizeCheck = fwrite(lastZeroByte, 1, 1, file);
1108 EXM_THROW(69, "Write error : cannot write last zero");
1113 /** FIO_passThrough() : just copy input into output, for compatibility with gzip -df mode
1114 @return : 0 (no error) */
1115 static unsigned FIO_passThrough(FILE* foutput, FILE* finput, void* buffer, size_t bufferSize, size_t alreadyLoaded)
1117 size_t const blockSize = MIN(64 KB, bufferSize);
1118 size_t readFromInput = 1;
1119 unsigned storedSkips = 0;
1121 /* assumption : ress->srcBufferLoaded bytes already loaded and stored within buffer */
1122 { size_t const sizeCheck = fwrite(buffer, 1, alreadyLoaded, foutput);
1123 if (sizeCheck != alreadyLoaded) {
1124 DISPLAYLEVEL(1, "Pass-through write error \n");
1128 while (readFromInput) {
1129 readFromInput = fread(buffer, 1, blockSize, finput);
1130 storedSkips = FIO_fwriteSparse(foutput, buffer, readFromInput, storedSkips);
1133 FIO_fwriteSparseEnd(foutput, storedSkips);
1137 static void FIO_zstdErrorHelp(dRess_t* ress, size_t ret, char const* srcFileName)
1139 ZSTD_frameHeader header;
1140 /* No special help for these errors */
1141 if (ZSTD_getErrorCode(ret) != ZSTD_error_frameParameter_windowTooLarge)
1143 /* Try to decode the frame header */
1144 ret = ZSTD_getFrameHeader(&header, ress->srcBuffer, ress->srcBufferLoaded);
1146 U32 const windowSize = (U32)header.windowSize;
1147 U32 const windowLog = BIT_highbit32(windowSize) + ((windowSize & (windowSize - 1)) != 0);
1148 U32 const windowMB = (windowSize >> 20) + ((windowSize & ((1 MB) - 1)) != 0);
1149 assert(header.windowSize <= (U64)((U32)-1));
1150 assert(g_memLimit > 0);
1151 DISPLAYLEVEL(1, "%s : Window size larger than maximum : %llu > %u\n",
1152 srcFileName, header.windowSize, g_memLimit);
1153 if (windowLog <= ZSTD_WINDOWLOG_MAX) {
1154 DISPLAYLEVEL(1, "%s : Use --long=%u or --memory=%uMB\n",
1155 srcFileName, windowLog, windowMB);
1158 } else if (ZSTD_getErrorCode(ret) != ZSTD_error_frameParameter_windowTooLarge) {
1159 DISPLAYLEVEL(1, "%s : Error decoding frame header to read window size : %s\n",
1160 srcFileName, ZSTD_getErrorName(ret));
1163 DISPLAYLEVEL(1, "%s : Window log larger than ZSTD_WINDOWLOG_MAX=%u not supported\n",
1164 srcFileName, ZSTD_WINDOWLOG_MAX);
1167 /** FIO_decompressFrame() :
1168 * @return : size of decoded zstd frame, or an error code
1170 #define FIO_ERROR_FRAME_DECODING ((unsigned long long)(-2))
1171 unsigned long long FIO_decompressZstdFrame(dRess_t* ress,
1173 const char* srcFileName,
1177 U32 storedSkips = 0;
1179 size_t const srcFileLength = strlen(srcFileName);
1180 if (srcFileLength>20) srcFileName += srcFileLength-20; /* display last 20 characters only */
1182 ZSTD_resetDStream(ress->dctx);
1184 /* Header loading : ensures ZSTD_getFrameHeader() will succeed */
1185 { size_t const toDecode = ZSTD_FRAMEHEADERSIZE_MAX;
1186 if (ress->srcBufferLoaded < toDecode) {
1187 size_t const toRead = toDecode - ress->srcBufferLoaded;
1188 void* const startPosition = (char*)ress->srcBuffer + ress->srcBufferLoaded;
1189 ress->srcBufferLoaded += fread(startPosition, 1, toRead, finput);
1192 /* Main decompression Loop */
1194 ZSTD_inBuffer inBuff = { ress->srcBuffer, ress->srcBufferLoaded, 0 };
1195 ZSTD_outBuffer outBuff= { ress->dstBuffer, ress->dstBufferSize, 0 };
1196 size_t const readSizeHint = ZSTD_decompressStream(ress->dctx, &outBuff, &inBuff);
1197 if (ZSTD_isError(readSizeHint)) {
1198 DISPLAYLEVEL(1, "%s : Decoding error (36) : %s \n",
1199 srcFileName, ZSTD_getErrorName(readSizeHint));
1200 FIO_zstdErrorHelp(ress, readSizeHint, srcFileName);
1201 return FIO_ERROR_FRAME_DECODING;
1205 storedSkips = FIO_fwriteSparse(ress->dstFile, ress->dstBuffer, outBuff.pos, storedSkips);
1206 frameSize += outBuff.pos;
1207 DISPLAYUPDATE(2, "\r%-20.20s : %u MB... ",
1208 srcFileName, (U32)((alreadyDecoded+frameSize)>>20) );
1210 if (inBuff.pos > 0) {
1211 memmove(ress->srcBuffer, (char*)ress->srcBuffer + inBuff.pos, inBuff.size - inBuff.pos);
1212 ress->srcBufferLoaded -= inBuff.pos;
1215 if (readSizeHint == 0) break; /* end of frame */
1216 if (inBuff.size != inBuff.pos) {
1217 DISPLAYLEVEL(1, "%s : Decoding error (37) : should consume entire input \n",
1219 return FIO_ERROR_FRAME_DECODING;
1222 /* Fill input buffer */
1223 { size_t const toDecode = MIN(readSizeHint, ress->srcBufferSize); /* support large skippable frames */
1224 if (ress->srcBufferLoaded < toDecode) {
1225 size_t const toRead = toDecode - ress->srcBufferLoaded; /* > 0 */
1226 void* const startPosition = (char*)ress->srcBuffer + ress->srcBufferLoaded;
1227 size_t const readSize = fread(startPosition, 1, toRead, finput);
1229 DISPLAYLEVEL(1, "%s : Read error (39) : premature end \n",
1231 return FIO_ERROR_FRAME_DECODING;
1233 ress->srcBufferLoaded += readSize;
1236 FIO_fwriteSparseEnd(ress->dstFile, storedSkips);
1242 #ifdef ZSTD_GZDECOMPRESS
1243 static unsigned long long FIO_decompressGzFrame(dRess_t* ress,
1244 FILE* srcFile, const char* srcFileName)
1246 unsigned long long outFileSize = 0;
1248 int flush = Z_NO_FLUSH;
1249 int decodingError = 0;
1251 strm.zalloc = Z_NULL;
1252 strm.zfree = Z_NULL;
1253 strm.opaque = Z_NULL;
1256 /* see http://www.zlib.net/manual.html */
1257 if (inflateInit2(&strm, 15 /* maxWindowLogSize */ + 16 /* gzip only */) != Z_OK)
1258 return FIO_ERROR_FRAME_DECODING;
1260 strm.next_out = (Bytef*)ress->dstBuffer;
1261 strm.avail_out = (uInt)ress->dstBufferSize;
1262 strm.avail_in = (uInt)ress->srcBufferLoaded;
1263 strm.next_in = (z_const unsigned char*)ress->srcBuffer;
1267 if (strm.avail_in == 0) {
1268 ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile);
1269 if (ress->srcBufferLoaded == 0) flush = Z_FINISH;
1270 strm.next_in = (z_const unsigned char*)ress->srcBuffer;
1271 strm.avail_in = (uInt)ress->srcBufferLoaded;
1273 ret = inflate(&strm, flush);
1274 if (ret == Z_BUF_ERROR) {
1275 DISPLAYLEVEL(1, "zstd: %s: premature gz end \n", srcFileName);
1276 decodingError = 1; break;
1278 if (ret != Z_OK && ret != Z_STREAM_END) {
1279 DISPLAYLEVEL(1, "zstd: %s: inflate error %d \n", srcFileName, ret);
1280 decodingError = 1; break;
1282 { size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
1284 if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) {
1285 DISPLAYLEVEL(1, "zstd: %s \n", strerror(errno));
1286 decodingError = 1; break;
1288 outFileSize += decompBytes;
1289 strm.next_out = (Bytef*)ress->dstBuffer;
1290 strm.avail_out = (uInt)ress->dstBufferSize;
1293 if (ret == Z_STREAM_END) break;
1296 if (strm.avail_in > 0)
1297 memmove(ress->srcBuffer, strm.next_in, strm.avail_in);
1298 ress->srcBufferLoaded = strm.avail_in;
1299 if ( (inflateEnd(&strm) != Z_OK) /* release resources ; error detected */
1300 && (decodingError==0) ) {
1301 DISPLAYLEVEL(1, "zstd: %s: inflateEnd error \n", srcFileName);
1304 return decodingError ? FIO_ERROR_FRAME_DECODING : outFileSize;
1309 #ifdef ZSTD_LZMADECOMPRESS
1310 static unsigned long long FIO_decompressLzmaFrame(dRess_t* ress, FILE* srcFile, const char* srcFileName, int plain_lzma)
1312 unsigned long long outFileSize = 0;
1313 lzma_stream strm = LZMA_STREAM_INIT;
1314 lzma_action action = LZMA_RUN;
1316 int decodingError = 0;
1321 initRet = lzma_alone_decoder(&strm, UINT64_MAX); /* LZMA */
1323 initRet = lzma_stream_decoder(&strm, UINT64_MAX, 0); /* XZ */
1326 if (initRet != LZMA_OK) {
1327 DISPLAYLEVEL(1, "zstd: %s: %s error %d \n",
1328 plain_lzma ? "lzma_alone_decoder" : "lzma_stream_decoder",
1329 srcFileName, initRet);
1330 return FIO_ERROR_FRAME_DECODING;
1333 strm.next_out = (BYTE*)ress->dstBuffer;
1334 strm.avail_out = ress->dstBufferSize;
1335 strm.next_in = (BYTE const*)ress->srcBuffer;
1336 strm.avail_in = ress->srcBufferLoaded;
1340 if (strm.avail_in == 0) {
1341 ress->srcBufferLoaded = fread(ress->srcBuffer, 1, ress->srcBufferSize, srcFile);
1342 if (ress->srcBufferLoaded == 0) action = LZMA_FINISH;
1343 strm.next_in = (BYTE const*)ress->srcBuffer;
1344 strm.avail_in = ress->srcBufferLoaded;
1346 ret = lzma_code(&strm, action);
1348 if (ret == LZMA_BUF_ERROR) {
1349 DISPLAYLEVEL(1, "zstd: %s: premature lzma end \n", srcFileName);
1350 decodingError = 1; break;
1352 if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
1353 DISPLAYLEVEL(1, "zstd: %s: lzma_code decoding error %d \n",
1355 decodingError = 1; break;
1357 { size_t const decompBytes = ress->dstBufferSize - strm.avail_out;
1359 if (fwrite(ress->dstBuffer, 1, decompBytes, ress->dstFile) != decompBytes) {
1360 DISPLAYLEVEL(1, "zstd: %s \n", strerror(errno));
1361 decodingError = 1; break;
1363 outFileSize += decompBytes;
1364 strm.next_out = (BYTE*)ress->dstBuffer;
1365 strm.avail_out = ress->dstBufferSize;
1367 if (ret == LZMA_STREAM_END) break;
1370 if (strm.avail_in > 0)
1371 memmove(ress->srcBuffer, strm.next_in, strm.avail_in);
1372 ress->srcBufferLoaded = strm.avail_in;
1374 return decodingError ? FIO_ERROR_FRAME_DECODING : outFileSize;
1378 #ifdef ZSTD_LZ4DECOMPRESS
1379 static unsigned long long FIO_decompressLz4Frame(dRess_t* ress,
1380 FILE* srcFile, const char* srcFileName)
1382 unsigned long long filesize = 0;
1383 LZ4F_errorCode_t nextToLoad;
1384 LZ4F_decompressionContext_t dCtx;
1385 LZ4F_errorCode_t const errorCode = LZ4F_createDecompressionContext(&dCtx, LZ4F_VERSION);
1386 int decodingError = 0;
1388 if (LZ4F_isError(errorCode)) {
1389 DISPLAYLEVEL(1, "zstd: failed to create lz4 decompression context \n");
1390 return FIO_ERROR_FRAME_DECODING;
1393 /* Init feed with magic number (already consumed from FILE* sFile) */
1394 { size_t inSize = 4;
1396 MEM_writeLE32(ress->srcBuffer, LZ4_MAGICNUMBER);
1397 nextToLoad = LZ4F_decompress(dCtx, ress->dstBuffer, &outSize, ress->srcBuffer, &inSize, NULL);
1398 if (LZ4F_isError(nextToLoad)) {
1399 DISPLAYLEVEL(1, "zstd: %s: lz4 header error : %s \n",
1400 srcFileName, LZ4F_getErrorName(nextToLoad));
1401 LZ4F_freeDecompressionContext(dCtx);
1402 return FIO_ERROR_FRAME_DECODING;
1406 for (;nextToLoad;) {
1409 size_t decodedBytes = ress->dstBufferSize;
1412 if (nextToLoad > ress->srcBufferSize) nextToLoad = ress->srcBufferSize;
1413 readSize = fread(ress->srcBuffer, 1, nextToLoad, srcFile);
1414 if (!readSize) break; /* reached end of file or stream */
1416 while ((pos < readSize) || (decodedBytes == ress->dstBufferSize)) { /* still to read, or still to flush */
1417 /* Decode Input (at least partially) */
1418 size_t remaining = readSize - pos;
1419 decodedBytes = ress->dstBufferSize;
1420 nextToLoad = LZ4F_decompress(dCtx, ress->dstBuffer, &decodedBytes, (char*)(ress->srcBuffer)+pos, &remaining, NULL);
1421 if (LZ4F_isError(nextToLoad)) {
1422 DISPLAYLEVEL(1, "zstd: %s: lz4 decompression error : %s \n",
1423 srcFileName, LZ4F_getErrorName(nextToLoad));
1424 decodingError = 1; break;
1430 if (fwrite(ress->dstBuffer, 1, decodedBytes, ress->dstFile) != decodedBytes) {
1431 DISPLAYLEVEL(1, "zstd: %s \n", strerror(errno));
1432 decodingError = 1; break;
1434 filesize += decodedBytes;
1435 DISPLAYUPDATE(2, "\rDecompressed : %u MB ", (unsigned)(filesize>>20));
1438 if (!nextToLoad) break;
1441 /* can be out because readSize == 0, which could be an fread() error */
1442 if (ferror(srcFile)) {
1443 DISPLAYLEVEL(1, "zstd: %s: read error \n", srcFileName);
1447 if (nextToLoad!=0) {
1448 DISPLAYLEVEL(1, "zstd: %s: unfinished lz4 stream \n", srcFileName);
1452 LZ4F_freeDecompressionContext(dCtx);
1453 ress->srcBufferLoaded = 0; /* LZ4F will reach exact frame boundary */
1455 return decodingError ? FIO_ERROR_FRAME_DECODING : filesize;
1461 /** FIO_decompressFrames() :
1462 * Find and decode frames inside srcFile
1463 * srcFile presumed opened and valid
1467 static int FIO_decompressFrames(dRess_t ress, FILE* srcFile,
1468 const char* dstFileName, const char* srcFileName)
1470 unsigned readSomething = 0;
1471 unsigned long long filesize = 0;
1472 assert(srcFile != NULL);
1474 /* for each frame */
1476 /* check magic number -> version */
1477 size_t const toRead = 4;
1478 const BYTE* const buf = (const BYTE*)ress.srcBuffer;
1479 if (ress.srcBufferLoaded < toRead) /* load up to 4 bytes for header */
1480 ress.srcBufferLoaded += fread((char*)ress.srcBuffer + ress.srcBufferLoaded,
1481 (size_t)1, toRead - ress.srcBufferLoaded, srcFile);
1482 if (ress.srcBufferLoaded==0) {
1483 if (readSomething==0) { /* srcFile is empty (which is invalid) */
1484 DISPLAYLEVEL(1, "zstd: %s: unexpected end of file \n", srcFileName);
1486 } /* else, just reached frame boundary */
1487 break; /* no more input */
1489 readSomething = 1; /* there is at least 1 byte in srcFile */
1490 if (ress.srcBufferLoaded < toRead) {
1491 DISPLAYLEVEL(1, "zstd: %s: unknown header \n", srcFileName);
1494 if (ZSTD_isFrame(buf, ress.srcBufferLoaded)) {
1495 unsigned long long const frameSize = FIO_decompressZstdFrame(&ress, srcFile, srcFileName, filesize);
1496 if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
1497 filesize += frameSize;
1498 } else if (buf[0] == 31 && buf[1] == 139) { /* gz magic number */
1499 #ifdef ZSTD_GZDECOMPRESS
1500 unsigned long long const frameSize = FIO_decompressGzFrame(&ress, srcFile, srcFileName);
1501 if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
1502 filesize += frameSize;
1504 DISPLAYLEVEL(1, "zstd: %s: gzip file cannot be uncompressed (zstd compiled without HAVE_ZLIB) -- ignored \n", srcFileName);
1507 } else if ((buf[0] == 0xFD && buf[1] == 0x37) /* xz magic number */
1508 || (buf[0] == 0x5D && buf[1] == 0x00)) { /* lzma header (no magic number) */
1509 #ifdef ZSTD_LZMADECOMPRESS
1510 unsigned long long const frameSize = FIO_decompressLzmaFrame(&ress, srcFile, srcFileName, buf[0] != 0xFD);
1511 if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
1512 filesize += frameSize;
1514 DISPLAYLEVEL(1, "zstd: %s: xz/lzma file cannot be uncompressed (zstd compiled without HAVE_LZMA) -- ignored \n", srcFileName);
1517 } else if (MEM_readLE32(buf) == LZ4_MAGICNUMBER) {
1518 #ifdef ZSTD_LZ4DECOMPRESS
1519 unsigned long long const frameSize = FIO_decompressLz4Frame(&ress, srcFile, srcFileName);
1520 if (frameSize == FIO_ERROR_FRAME_DECODING) return 1;
1521 filesize += frameSize;
1523 DISPLAYLEVEL(1, "zstd: %s: lz4 file cannot be uncompressed (zstd compiled without HAVE_LZ4) -- ignored \n", srcFileName);
1526 } else if ((g_overwrite) && !strcmp (dstFileName, stdoutmark)) { /* pass-through mode */
1527 return FIO_passThrough(ress.dstFile, srcFile,
1528 ress.srcBuffer, ress.srcBufferSize, ress.srcBufferLoaded);
1530 DISPLAYLEVEL(1, "zstd: %s: unsupported format \n", srcFileName);
1532 } } /* for each frame */
1535 DISPLAYLEVEL(2, "\r%79s\r", "");
1536 DISPLAYLEVEL(2, "%-20s: %llu bytes \n", srcFileName, filesize);
1542 /** FIO_decompressSrcFile() :
1543 Decompression `srcFileName` into `ress.dstFile`
1545 1 : operation not started
1547 static int FIO_decompressSrcFile(dRess_t ress, const char* dstFileName, const char* srcFileName)
1552 if (UTIL_isDirectory(srcFileName)) {
1553 DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName);
1557 srcFile = FIO_openSrcFile(srcFileName);
1558 if (srcFile==NULL) return 1;
1560 result = FIO_decompressFrames(ress, srcFile, dstFileName, srcFileName);
1563 if (fclose(srcFile)) {
1564 DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno)); /* error should not happen */
1567 if ( g_removeSrcFile /* --rm */
1568 && (result==0) /* decompression successful */
1569 && strcmp(srcFileName, stdinmark) ) /* not stdin */ {
1570 /* We must clear the handler, since after this point calling it would
1571 * delete both the source and destination files.
1574 if (remove(srcFileName)) {
1575 /* failed to remove src file */
1576 DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno));
1583 /** FIO_decompressFile_extRess() :
1584 decompress `srcFileName` into `dstFileName`
1586 1 : operation aborted (src not available, dst already taken, etc.)
1588 static int FIO_decompressDstFile(dRess_t ress,
1589 const char* dstFileName, const char* srcFileName)
1593 int stat_result = 0;
1595 ress.dstFile = FIO_openDstFile(dstFileName);
1596 if (ress.dstFile==0) return 1;
1597 /* Must ony be added after FIO_openDstFile() succeeds.
1598 * Otherwise we may delete the destination file if at already exists, and
1599 * the user presses Ctrl-C when asked if they wish to overwrite.
1601 addHandler(dstFileName);
1603 if ( strcmp(srcFileName, stdinmark)
1604 && UTIL_getFileStat(srcFileName, &statbuf) )
1606 result = FIO_decompressSrcFile(ress, dstFileName, srcFileName);
1609 if (fclose(ress.dstFile)) {
1610 DISPLAYLEVEL(1, "zstd: %s: %s \n", dstFileName, strerror(errno));
1614 if ( (result != 0) /* operation failure */
1615 && strcmp(dstFileName, nulmark) /* special case : don't remove() /dev/null (#316) */
1616 && strcmp(dstFileName, stdoutmark) ) /* special case : don't remove() stdout */
1617 remove(dstFileName); /* remove decompression artefact; note don't do anything special if remove() fails */
1618 else { /* operation success */
1619 if ( strcmp(dstFileName, stdoutmark) /* special case : don't chmod stdout */
1620 && strcmp(dstFileName, nulmark) /* special case : don't chmod /dev/null */
1621 && stat_result ) /* file permissions correctly extracted from src */
1622 UTIL_setFileStat(dstFileName, &statbuf); /* transfer file permissions from src into dst */
1625 signal(SIGINT, SIG_DFL);
1631 int FIO_decompressFilename(const char* dstFileName, const char* srcFileName,
1632 const char* dictFileName)
1634 dRess_t const ress = FIO_createDResources(dictFileName);
1636 int const decodingError = FIO_decompressDstFile(ress, dstFileName, srcFileName);
1638 FIO_freeDResources(ress);
1639 return decodingError;
1643 #define MAXSUFFIXSIZE 8
1644 int FIO_decompressMultipleFilenames(const char** srcNamesTable, unsigned nbFiles,
1645 const char* outFileName,
1646 const char* dictFileName)
1648 int skippedFiles = 0;
1649 int missingFiles = 0;
1650 dRess_t ress = FIO_createDResources(dictFileName);
1654 ress.dstFile = FIO_openDstFile(outFileName);
1655 if (ress.dstFile == 0) EXM_THROW(71, "cannot open %s", outFileName);
1656 for (u=0; u<nbFiles; u++)
1657 missingFiles += FIO_decompressSrcFile(ress, outFileName, srcNamesTable[u]);
1658 if (fclose(ress.dstFile))
1659 EXM_THROW(72, "Write error : cannot properly close output file");
1662 size_t dfnSize = FNSPACE;
1664 char* dstFileName = (char*)malloc(FNSPACE);
1665 if (dstFileName==NULL)
1666 EXM_THROW(73, "not enough memory for dstFileName");
1667 for (u=0; u<nbFiles; u++) { /* create dstFileName */
1668 const char* const srcFileName = srcNamesTable[u];
1669 const char* const suffixPtr = strrchr(srcFileName, '.');
1670 size_t const sfnSize = strlen(srcFileName);
1672 DISPLAYLEVEL(1, "zstd: %s: unknown suffix -- ignored \n",
1677 suffixSize = strlen(suffixPtr);
1678 if (dfnSize+suffixSize <= sfnSize+1) {
1680 dfnSize = sfnSize + 20;
1681 dstFileName = (char*)malloc(dfnSize);
1682 if (dstFileName==NULL)
1683 EXM_THROW(74, "not enough memory for dstFileName");
1685 if (sfnSize <= suffixSize
1686 || (strcmp(suffixPtr, GZ_EXTENSION)
1687 && strcmp(suffixPtr, XZ_EXTENSION)
1688 && strcmp(suffixPtr, ZSTD_EXTENSION)
1689 && strcmp(suffixPtr, LZMA_EXTENSION)
1690 && strcmp(suffixPtr, LZ4_EXTENSION)) ) {
1691 DISPLAYLEVEL(1, "zstd: %s: unknown suffix (%s/%s/%s/%s/%s expected) -- ignored \n",
1692 srcFileName, GZ_EXTENSION, XZ_EXTENSION, ZSTD_EXTENSION, LZMA_EXTENSION, LZ4_EXTENSION);
1696 memcpy(dstFileName, srcFileName, sfnSize - suffixSize);
1697 dstFileName[sfnSize-suffixSize] = '\0';
1699 missingFiles += FIO_decompressDstFile(ress, dstFileName, srcFileName);
1704 FIO_freeDResources(ress);
1705 return missingFiles + skippedFiles;
1710 /* **************************************************************************
1711 * .zst file info (--list command)
1712 ***************************************************************************/
1715 U64 decompressedSize;
1718 int numActualFrames;
1719 int numSkippableFrames;
1720 int decompUnavailable;
1726 * Reads information from file, stores in *info
1727 * @return : 0 if successful
1728 * 1 for frame analysis error
1729 * 2 for file not compressed with zstd
1730 * 3 for cases in which file could not be opened.
1732 static int getFileInfo_fileConfirmed(fileInfo_t* info, const char* inFileName){
1733 int detectError = 0;
1734 FILE* const srcFile = FIO_openSrcFile(inFileName);
1735 if (srcFile == NULL) {
1736 DISPLAY("Error: could not open source file %s\n", inFileName);
1739 info->compressedSize = UTIL_getFileSize(inFileName);
1741 /* begin analyzing frame */
1743 BYTE headerBuffer[ZSTD_FRAMEHEADERSIZE_MAX];
1744 size_t const numBytesRead = fread(headerBuffer, 1, sizeof(headerBuffer), srcFile);
1745 if (numBytesRead < ZSTD_frameHeaderSize_min) {
1747 && (numBytesRead == 0)
1748 && (info->compressedSize > 0)
1749 && (info->compressedSize != UTIL_FILESIZE_UNKNOWN) ) {
1752 else if (feof(srcFile)) {
1753 DISPLAY("Error: reached end of file with incomplete frame\n");
1758 DISPLAY("Error: did not reach end of file but ran out of frames\n");
1763 { U32 const magicNumber = MEM_readLE32(headerBuffer);
1764 /* Zstandard frame */
1765 if (magicNumber == ZSTD_MAGICNUMBER) {
1766 ZSTD_frameHeader header;
1767 U64 const frameContentSize = ZSTD_getFrameContentSize(headerBuffer, numBytesRead);
1768 if (frameContentSize == ZSTD_CONTENTSIZE_ERROR || frameContentSize == ZSTD_CONTENTSIZE_UNKNOWN) {
1769 info->decompUnavailable = 1;
1771 info->decompressedSize += frameContentSize;
1773 if (ZSTD_getFrameHeader(&header, headerBuffer, numBytesRead) != 0) {
1774 DISPLAY("Error: could not decode frame header\n");
1778 info->windowSize = header.windowSize;
1779 /* move to the end of the frame header */
1780 { size_t const headerSize = ZSTD_frameHeaderSize(headerBuffer, numBytesRead);
1781 if (ZSTD_isError(headerSize)) {
1782 DISPLAY("Error: could not determine frame header size\n");
1786 { int const ret = fseek(srcFile, ((long)headerSize)-((long)numBytesRead), SEEK_CUR);
1788 DISPLAY("Error: could not move to end of frame header\n");
1793 /* skip the rest of the blocks in the frame */
1794 { int lastBlock = 0;
1796 BYTE blockHeaderBuffer[3];
1797 size_t const readBytes = fread(blockHeaderBuffer, 1, 3, srcFile);
1798 if (readBytes != 3) {
1799 DISPLAY("There was a problem reading the block header\n");
1803 { U32 const blockHeader = MEM_readLE24(blockHeaderBuffer);
1804 U32 const blockTypeID = (blockHeader >> 1) & 3;
1805 U32 const isRLE = (blockTypeID == 1);
1806 U32 const isWrongBlock = (blockTypeID == 3);
1807 long const blockSize = isRLE ? 1 : (long)(blockHeader >> 3);
1809 DISPLAY("Error: unsupported block type \n");
1813 lastBlock = blockHeader & 1;
1814 { int const ret = fseek(srcFile, blockSize, SEEK_CUR);
1816 DISPLAY("Error: could not skip to end of block\n");
1820 } while (lastBlock != 1);
1822 if (detectError) break;
1825 /* check if checksum is used */
1826 { BYTE const frameHeaderDescriptor = headerBuffer[4];
1827 int const contentChecksumFlag = (frameHeaderDescriptor & (1 << 2)) >> 2;
1828 if (contentChecksumFlag) {
1829 int const ret = fseek(srcFile, 4, SEEK_CUR);
1830 info->usesCheck = 1;
1832 DISPLAY("Error: could not skip past checksum\n");
1836 info->numActualFrames++;
1838 /* Skippable frame */
1839 else if ((magicNumber & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) {
1840 U32 const frameSize = MEM_readLE32(headerBuffer + 4);
1841 long const seek = (long)(8 + frameSize - numBytesRead);
1842 int const ret = LONG_SEEK(srcFile, seek, SEEK_CUR);
1844 DISPLAY("Error: could not find end of skippable frame\n");
1848 info->numSkippableFrames++;
1850 /* unknown content */
1856 } /* end analyzing frame */
1862 static int getFileInfo(fileInfo_t* info, const char* srcFileName)
1864 int const isAFile = UTIL_isRegularFile(srcFileName);
1866 DISPLAY("Error : %s is not a file", srcFileName);
1869 return getFileInfo_fileConfirmed(info, srcFileName);
1873 static void displayInfo(const char* inFileName, const fileInfo_t* info, int displayLevel){
1874 unsigned const unit = info->compressedSize < (1 MB) ? (1 KB) : (1 MB);
1875 const char* const unitStr = info->compressedSize < (1 MB) ? "KB" : "MB";
1876 double const windowSizeUnit = (double)info->windowSize / unit;
1877 double const compressedSizeUnit = (double)info->compressedSize / unit;
1878 double const decompressedSizeUnit = (double)info->decompressedSize / unit;
1879 double const ratio = (info->compressedSize == 0) ? 0 : ((double)info->decompressedSize)/info->compressedSize;
1880 const char* const checkString = (info->usesCheck ? "XXH64" : "None");
1881 if (displayLevel <= 2) {
1882 if (!info->decompUnavailable) {
1883 DISPLAYOUT("%6d %5d %7.2f %2s %9.2f %2s %5.3f %5s %s\n",
1884 info->numSkippableFrames + info->numActualFrames,
1885 info->numSkippableFrames,
1886 compressedSizeUnit, unitStr, decompressedSizeUnit, unitStr,
1887 ratio, checkString, inFileName);
1889 DISPLAYOUT("%6d %5d %7.2f %2s %5s %s\n",
1890 info->numSkippableFrames + info->numActualFrames,
1891 info->numSkippableFrames,
1892 compressedSizeUnit, unitStr,
1893 checkString, inFileName);
1896 DISPLAYOUT("%s \n", inFileName);
1897 DISPLAYOUT("# Zstandard Frames: %d\n", info->numActualFrames);
1898 if (info->numSkippableFrames)
1899 DISPLAYOUT("# Skippable Frames: %d\n", info->numSkippableFrames);
1900 DISPLAYOUT("Window Size: %.2f %2s (%llu B)\n",
1901 windowSizeUnit, unitStr,
1902 (unsigned long long)info->windowSize);
1903 DISPLAYOUT("Compressed Size: %.2f %2s (%llu B)\n",
1904 compressedSizeUnit, unitStr,
1905 (unsigned long long)info->compressedSize);
1906 if (!info->decompUnavailable) {
1907 DISPLAYOUT("Decompressed Size: %.2f %2s (%llu B)\n",
1908 decompressedSizeUnit, unitStr,
1909 (unsigned long long)info->decompressedSize);
1910 DISPLAYOUT("Ratio: %.4f\n", ratio);
1912 DISPLAYOUT("Check: %s\n", checkString);
1917 static fileInfo_t FIO_addFInfo(fileInfo_t fi1, fileInfo_t fi2)
1920 total.numActualFrames = fi1.numActualFrames + fi2.numActualFrames;
1921 total.numSkippableFrames = fi1.numSkippableFrames + fi2.numSkippableFrames;
1922 total.compressedSize = fi1.compressedSize + fi2.compressedSize;
1923 total.decompressedSize = fi1.decompressedSize + fi2.decompressedSize;
1924 total.decompUnavailable = fi1.decompUnavailable | fi2.decompUnavailable;
1925 total.usesCheck = fi1.usesCheck & fi2.usesCheck;
1926 total.nbFiles = fi1.nbFiles + fi2.nbFiles;
1930 static int FIO_listFile(fileInfo_t* total, const char* inFileName, int displayLevel){
1932 memset(&info, 0, sizeof(info));
1933 { int const error = getFileInfo(&info, inFileName);
1935 /* display error, but provide output */
1936 DISPLAY("An error occurred while getting file info \n");
1938 else if (error == 2) {
1939 DISPLAYOUT("File %s not compressed by zstd \n", inFileName);
1940 if (displayLevel > 2) DISPLAYOUT("\n");
1943 else if (error == 3) {
1944 /* error occurred while opening the file */
1945 if (displayLevel > 2) DISPLAYOUT("\n");
1948 displayInfo(inFileName, &info, displayLevel);
1949 *total = FIO_addFInfo(*total, info);
1954 int FIO_listMultipleFiles(unsigned numFiles, const char** filenameTable, int displayLevel){
1955 if (numFiles == 0) {
1956 DISPLAYOUT("No files given\n");
1959 if (displayLevel <= 2) {
1960 DISPLAYOUT("Frames Skips Compressed Uncompressed Ratio Check Filename\n");
1965 memset(&total, 0, sizeof(total));
1966 total.usesCheck = 1;
1967 for (u=0; u<numFiles;u++) {
1968 error |= FIO_listFile(&total, filenameTable[u], displayLevel);
1970 if (numFiles > 1 && displayLevel <= 2) { /* display total */
1971 unsigned const unit = total.compressedSize < (1 MB) ? (1 KB) : (1 MB);
1972 const char* const unitStr = total.compressedSize < (1 MB) ? "KB" : "MB";
1973 double const compressedSizeUnit = (double)total.compressedSize / unit;
1974 double const decompressedSizeUnit = (double)total.decompressedSize / unit;
1975 double const ratio = (total.compressedSize == 0) ? 0 : ((double)total.decompressedSize)/total.compressedSize;
1976 const char* const checkString = (total.usesCheck ? "XXH64" : "");
1977 DISPLAYOUT("----------------------------------------------------------------- \n");
1978 if (total.decompUnavailable) {
1979 DISPLAYOUT("%6d %5d %7.2f %2s %5s %u files\n",
1980 total.numSkippableFrames + total.numActualFrames,
1981 total.numSkippableFrames,
1982 compressedSizeUnit, unitStr,
1983 checkString, total.nbFiles);
1985 DISPLAYOUT("%6d %5d %7.2f %2s %9.2f %2s %5.3f %5s %u files\n",
1986 total.numSkippableFrames + total.numActualFrames,
1987 total.numSkippableFrames,
1988 compressedSizeUnit, unitStr, decompressedSizeUnit, unitStr,
1989 ratio, checkString, total.nbFiles);
1996 #endif /* #ifndef ZSTD_NODECOMPRESS */