1 /*
2  * Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
3  * All rights reserved.
4  *
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  */
9 
10 
11 /* *************************************
12 *  Includes
13 ***************************************/
14 #include "util.h"        /* Compiler options, UTIL_GetFileSize, UTIL_sleep */
15 #include <stdlib.h>      /* malloc, free */
16 #include <string.h>      /* memset */
17 #include <stdio.h>       /* fprintf, fopen, ftello64 */
18 #include <time.h>        /* clock_t, clock, CLOCKS_PER_SEC */
19 #include <ctype.h>       /* toupper */
20 #include <errno.h>       /* errno */
21 
22 #include "timefn.h"      /* UTIL_time_t, UTIL_getTime, UTIL_clockSpanMicro, UTIL_waitForNextTick */
23 #include "mem.h"
24 #define ZSTD_STATIC_LINKING_ONLY
25 #include "zstd.h"
26 #include "datagen.h"     /* RDG_genBuffer */
27 #include "xxhash.h"
28 
29 #include "zstd_zlibwrapper.h"
30 
31 
32 
33 /*-************************************
34 *  Tuning parameters
35 **************************************/
36 #ifndef ZSTDCLI_CLEVEL_DEFAULT
37 #  define ZSTDCLI_CLEVEL_DEFAULT 3
38 #endif
39 
40 
41 /*-************************************
42 *  Constants
43 **************************************/
44 #define COMPRESSOR_NAME "Zstandard wrapper for zlib command line interface"
45 #ifndef ZSTD_VERSION
46 #  define ZSTD_VERSION "v" ZSTD_VERSION_STRING
47 #endif
48 #define AUTHOR "Yann Collet"
49 #define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR
50 
51 #ifndef ZSTD_GIT_COMMIT
52 #  define ZSTD_GIT_COMMIT_STRING ""
53 #else
54 #  define ZSTD_GIT_COMMIT_STRING ZSTD_EXPAND_AND_QUOTE(ZSTD_GIT_COMMIT)
55 #endif
56 
57 #define NBLOOPS               3
58 #define TIMELOOP_MICROSEC     1*1000000ULL /* 1 second */
59 #define ACTIVEPERIOD_MICROSEC 70*1000000ULL /* 70 seconds */
60 #define COOLPERIOD_SEC        10
61 
62 #define KB *(1 <<10)
63 #define MB *(1 <<20)
64 #define GB *(1U<<30)
65 
66 static const size_t maxMemory = (sizeof(size_t)==4)  ?  (2 GB - 64 MB) : (size_t)(1ULL << ((sizeof(size_t)*8)-31));
67 
68 static U32 g_compressibilityDefault = 50;
69 
70 
71 /* *************************************
72 *  console display
73 ***************************************/
74 #define DEFAULT_DISPLAY_LEVEL 2
75 #define DISPLAY(...)         fprintf(displayOut, __VA_ARGS__)
76 #define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
77 static int g_displayLevel = DEFAULT_DISPLAY_LEVEL;   /* 0 : no display;   1: errors;   2 : + result + interaction + warnings;   3 : + progression;   4 : + information */
78 static FILE* displayOut;
79 
80 #define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
81             if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \
82             { g_time = clock(); DISPLAY(__VA_ARGS__); \
83             if (g_displayLevel>=4) fflush(displayOut); } }
84 static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100;
85 static clock_t g_time = 0;
86 
87 
88 /* *************************************
89 *  Exceptions
90 ***************************************/
91 #ifndef DEBUG
92 #  define DEBUG 0
93 #endif
94 #define DEBUGOUTPUT(...) { if (DEBUG) DISPLAY(__VA_ARGS__); }
95 #define EXM_THROW(error, ...)                                             \
96 {                                                                         \
97     DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \
98     DISPLAYLEVEL(1, "Error %i : ", error);                                \
99     DISPLAYLEVEL(1, __VA_ARGS__);                                         \
100     DISPLAYLEVEL(1, "\n");                                                \
101     exit(error);                                                          \
102 }
103 
104 
105 /* *************************************
106 *  Benchmark Parameters
107 ***************************************/
108 static unsigned g_nbIterations = NBLOOPS;
109 static size_t g_blockSize = 0;
110 int g_additionalParam = 0;
111 
112 void BMK_setNotificationLevel(unsigned level) { g_displayLevel=level; }
113 
114 void BMK_setAdditionalParam(int additionalParam) { g_additionalParam=additionalParam; }
115 
116 void BMK_SetNbIterations(unsigned nbLoops)
117 {
118     g_nbIterations = nbLoops;
119     DISPLAYLEVEL(3, "- test >= %u seconds per compression / decompression -\n", g_nbIterations);
120 }
121 
122 void BMK_SetBlockSize(size_t blockSize)
123 {
124     g_blockSize = blockSize;
125     DISPLAYLEVEL(2, "using blocks of size %u KB \n", (unsigned)(blockSize>>10));
126 }
127 
128 
129 /* ********************************************************
130 *  Bench functions
131 **********************************************************/
132 #undef MIN
133 #undef MAX
134 #define MIN(a,b) ((a)<(b) ? (a) : (b))
135 #define MAX(a,b) ((a)>(b) ? (a) : (b))
136 
137 typedef struct
138 {
139     z_const char* srcPtr;
140     size_t srcSize;
141     char*  cPtr;
142     size_t cRoom;
143     size_t cSize;
144     char*  resPtr;
145     size_t resSize;
146 } blockParam_t;
147 
148 typedef enum { BMK_ZSTD, BMK_ZSTD_STREAM, BMK_ZLIB, BMK_ZWRAP_ZLIB, BMK_ZWRAP_ZSTD, BMK_ZLIB_REUSE, BMK_ZWRAP_ZLIB_REUSE, BMK_ZWRAP_ZSTD_REUSE } BMK_compressor;
149 
150 
151 static int BMK_benchMem(z_const void* srcBuffer, size_t srcSize,
152                         const char* displayName, int cLevel,
153                         const size_t* fileSizes, U32 nbFiles,
154                         const void* dictBuffer, size_t dictBufferSize, BMK_compressor compressor)
155 {
156     size_t const blockSize = (g_blockSize>=32 ? g_blockSize : srcSize) + (!srcSize) /* avoid div by 0 */ ;
157     size_t const avgSize = MIN(g_blockSize, (srcSize / nbFiles));
158     U32 const maxNbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize) + nbFiles;
159     blockParam_t* const blockTable = (blockParam_t*) malloc(maxNbBlocks * sizeof(blockParam_t));
160     size_t const maxCompressedSize = ZSTD_compressBound(srcSize) + (maxNbBlocks * 1024);   /* add some room for safety */
161     void* const compressedBuffer = malloc(maxCompressedSize);
162     void* const resultBuffer = malloc(srcSize);
163     ZSTD_CCtx* const ctx = ZSTD_createCCtx();
164     ZSTD_DCtx* const dctx = ZSTD_createDCtx();
165     U32 nbBlocks;
166 
167     /* checks */
168     if (!compressedBuffer || !resultBuffer || !blockTable || !ctx || !dctx)
169         EXM_THROW(31, "allocation error : not enough memory");
170 
171     /* init */
172     if (strlen(displayName)>17) displayName += strlen(displayName)-17;   /* can only display 17 characters */
173 
174     /* Init blockTable data */
175     {   z_const char* srcPtr = (z_const char*)srcBuffer;
176         char* cPtr = (char*)compressedBuffer;
177         char* resPtr = (char*)resultBuffer;
178         U32 fileNb;
179         for (nbBlocks=0, fileNb=0; fileNb<nbFiles; fileNb++) {
180             size_t remaining = fileSizes[fileNb];
181             U32 const nbBlocksforThisFile = (U32)((remaining + (blockSize-1)) / blockSize);
182             U32 const blockEnd = nbBlocks + nbBlocksforThisFile;
183             for ( ; nbBlocks<blockEnd; nbBlocks++) {
184                 size_t const thisBlockSize = MIN(remaining, blockSize);
185                 blockTable[nbBlocks].srcPtr = srcPtr;
186                 blockTable[nbBlocks].cPtr = cPtr;
187                 blockTable[nbBlocks].resPtr = resPtr;
188                 blockTable[nbBlocks].srcSize = thisBlockSize;
189                 blockTable[nbBlocks].cRoom = ZSTD_compressBound(thisBlockSize);
190                 srcPtr += thisBlockSize;
191                 cPtr += blockTable[nbBlocks].cRoom;
192                 resPtr += thisBlockSize;
193                 remaining -= thisBlockSize;
194     }   }   }
195 
196     /* warming up memory */
197     RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.50, 1);
198 
199     /* Bench */
200     {   U64 fastestC = (U64)(-1LL), fastestD = (U64)(-1LL);
201         U64 const crcOrig = XXH64(srcBuffer, srcSize, 0);
202         UTIL_time_t coolTime;
203         U64 const maxTime = (g_nbIterations * TIMELOOP_MICROSEC) + 100;
204         U64 totalCTime=0, totalDTime=0;
205         U32 cCompleted=0, dCompleted=0;
206 #       define NB_MARKS 4
207         const char* const marks[NB_MARKS] = { " |", " /", " =",  "\\" };
208         U32 markNb = 0;
209         size_t cSize = 0;
210         double ratio = 0.;
211 
212         coolTime = UTIL_getTime();
213         DISPLAYLEVEL(2, "\r%79s\r", "");
214         while (!cCompleted | !dCompleted) {
215             UTIL_time_t clockStart;
216             U64 clockLoop = g_nbIterations ? TIMELOOP_MICROSEC : 1;
217 
218             /* overheat protection */
219             if (UTIL_clockSpanMicro(coolTime) > ACTIVEPERIOD_MICROSEC) {
220                 DISPLAYLEVEL(2, "\rcooling down ...    \r");
221                 UTIL_sleep(COOLPERIOD_SEC);
222                 coolTime = UTIL_getTime();
223             }
224 
225             /* Compression */
226             DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->\r", marks[markNb], displayName, (unsigned)srcSize);
227             if (!cCompleted) memset(compressedBuffer, 0xE5, maxCompressedSize);  /* warm up and erase result buffer */
228 
229             UTIL_sleepMilli(1);  /* give processor time to other processes */
230             UTIL_waitForNextTick();
231             clockStart = UTIL_getTime();
232 
233             if (!cCompleted) {   /* still some time to do compression tests */
234                 U32 nbLoops = 0;
235                 if (compressor == BMK_ZSTD) {
236                     ZSTD_parameters const zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
237                     ZSTD_customMem const cmem = { NULL, NULL, NULL };
238                     ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictBuffer, dictBufferSize, ZSTD_dlm_byRef, ZSTD_dct_auto, zparams.cParams, cmem);
239                     if (cdict==NULL) EXM_THROW(1, "ZSTD_createCDict_advanced() allocation failure");
240 
241                     do {
242                         U32 blockNb;
243                         size_t rSize;
244                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
245                             if (dictBufferSize) {
246                                 rSize = ZSTD_compress_usingCDict(ctx,
247                                                 blockTable[blockNb].cPtr,  blockTable[blockNb].cRoom,
248                                                 blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize,
249                                                 cdict);
250                             } else {
251                                 rSize = ZSTD_compressCCtx (ctx,
252                                                 blockTable[blockNb].cPtr,  blockTable[blockNb].cRoom,
253                                                 blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize, cLevel);
254                             }
255                             if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compress_usingCDict() failed : %s", ZSTD_getErrorName(rSize));
256                             blockTable[blockNb].cSize = rSize;
257                         }
258                         nbLoops++;
259                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
260                     ZSTD_freeCDict(cdict);
261                 } else if (compressor == BMK_ZSTD_STREAM) {
262                     ZSTD_parameters const zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
263                     ZSTD_inBuffer inBuffer;
264                     ZSTD_outBuffer outBuffer;
265                     ZSTD_CStream* zbc = ZSTD_createCStream();
266                     size_t rSize;
267                     if (zbc == NULL) EXM_THROW(1, "ZSTD_createCStream() allocation failure");
268                     rSize = ZSTD_initCStream_advanced(zbc, dictBuffer, dictBufferSize, zparams, avgSize);
269                     if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_initCStream_advanced() failed : %s", ZSTD_getErrorName(rSize));
270                     do {
271                         U32 blockNb;
272                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
273                             rSize = ZSTD_resetCStream(zbc, blockTable[blockNb].srcSize);
274                             if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_resetCStream() failed : %s", ZSTD_getErrorName(rSize));
275                             inBuffer.src = blockTable[blockNb].srcPtr;
276                             inBuffer.size = blockTable[blockNb].srcSize;
277                             inBuffer.pos = 0;
278                             outBuffer.dst = blockTable[blockNb].cPtr;
279                             outBuffer.size = blockTable[blockNb].cRoom;
280                             outBuffer.pos = 0;
281                             rSize = ZSTD_compressStream(zbc, &outBuffer, &inBuffer);
282                             if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compressStream() failed : %s", ZSTD_getErrorName(rSize));
283                             rSize = ZSTD_endStream(zbc, &outBuffer);
284                             if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_endStream() failed : %s", ZSTD_getErrorName(rSize));
285                             blockTable[blockNb].cSize = outBuffer.pos;
286                         }
287                         nbLoops++;
288                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
289                     ZSTD_freeCStream(zbc);
290                 } else if (compressor == BMK_ZWRAP_ZLIB_REUSE || compressor == BMK_ZWRAP_ZSTD_REUSE || compressor == BMK_ZLIB_REUSE) {
291                     z_stream def;
292                     int ret;
293                     int useSetDict = (dictBuffer != NULL);
294                     if (compressor == BMK_ZLIB_REUSE || compressor == BMK_ZWRAP_ZLIB_REUSE) ZWRAP_useZSTDcompression(0);
295                     else ZWRAP_useZSTDcompression(1);
296                     def.zalloc = Z_NULL;
297                     def.zfree = Z_NULL;
298                     def.opaque = Z_NULL;
299                     ret = deflateInit(&def, cLevel);
300                     if (ret != Z_OK) EXM_THROW(1, "deflateInit failure");
301                  /*   if (ZWRAP_isUsingZSTDcompression()) {
302                         ret = ZWRAP_setPledgedSrcSize(&def, avgSize);
303                         if (ret != Z_OK) EXM_THROW(1, "ZWRAP_setPledgedSrcSize failure");
304                     } */
305                     do {
306                         U32 blockNb;
307                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
308                             if (ZWRAP_isUsingZSTDcompression())
309                                 ret = ZWRAP_deflateReset_keepDict(&def); /* reuse dictionary to make compression faster */
310                             else
311                                 ret = deflateReset(&def);
312                             if (ret != Z_OK) EXM_THROW(1, "deflateReset failure");
313                             if (useSetDict) {
314                                 ret = deflateSetDictionary(&def, (const z_Bytef*)dictBuffer, dictBufferSize);
315                                 if (ret != Z_OK) EXM_THROW(1, "deflateSetDictionary failure");
316                                 if (ZWRAP_isUsingZSTDcompression()) useSetDict = 0; /* zstd doesn't require deflateSetDictionary after ZWRAP_deflateReset_keepDict */
317                             }
318                             def.next_in = (z_const z_Bytef*) blockTable[blockNb].srcPtr;
319                             def.avail_in = (uInt)blockTable[blockNb].srcSize;
320                             def.total_in = 0;
321                             def.next_out = (z_Bytef*) blockTable[blockNb].cPtr;
322                             def.avail_out = (uInt)blockTable[blockNb].cRoom;
323                             def.total_out = 0;
324                             ret = deflate(&def, Z_FINISH);
325                             if (ret != Z_STREAM_END) EXM_THROW(1, "deflate failure ret=%d srcSize=%d" , ret, (int)blockTable[blockNb].srcSize);
326                             blockTable[blockNb].cSize = def.total_out;
327                         }
328                         nbLoops++;
329                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
330                     ret = deflateEnd(&def);
331                     if (ret != Z_OK) EXM_THROW(1, "deflateEnd failure");
332                 } else {
333                     z_stream def;
334                     if (compressor == BMK_ZLIB || compressor == BMK_ZWRAP_ZLIB) ZWRAP_useZSTDcompression(0);
335                     else ZWRAP_useZSTDcompression(1);
336                     do {
337                         U32 blockNb;
338                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
339                             int ret;
340                             def.zalloc = Z_NULL;
341                             def.zfree = Z_NULL;
342                             def.opaque = Z_NULL;
343                             ret = deflateInit(&def, cLevel);
344                             if (ret != Z_OK) EXM_THROW(1, "deflateInit failure");
345                             if (dictBuffer) {
346                                 ret = deflateSetDictionary(&def, (const z_Bytef*)dictBuffer, dictBufferSize);
347                                 if (ret != Z_OK) EXM_THROW(1, "deflateSetDictionary failure");
348                             }
349                             def.next_in = (z_const z_Bytef*) blockTable[blockNb].srcPtr;
350                             def.avail_in = (uInt)blockTable[blockNb].srcSize;
351                             def.total_in = 0;
352                             def.next_out = (z_Bytef*) blockTable[blockNb].cPtr;
353                             def.avail_out = (uInt)blockTable[blockNb].cRoom;
354                             def.total_out = 0;
355                             ret = deflate(&def, Z_FINISH);
356                             if (ret != Z_STREAM_END) EXM_THROW(1, "deflate failure");
357                             ret = deflateEnd(&def);
358                             if (ret != Z_OK) EXM_THROW(1, "deflateEnd failure");
359                             blockTable[blockNb].cSize = def.total_out;
360                         }
361                         nbLoops++;
362                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
363                 }
364                 {   U64 const clockSpan = UTIL_clockSpanMicro(clockStart);
365                     if (clockSpan < fastestC*nbLoops) fastestC = clockSpan / nbLoops;
366                     totalCTime += clockSpan;
367                     cCompleted = totalCTime>maxTime;
368             }   }
369 
370             cSize = 0;
371             { U32 blockNb; for (blockNb=0; blockNb<nbBlocks; blockNb++) cSize += blockTable[blockNb].cSize; }
372             ratio = (double)srcSize / (double)cSize;
373             markNb = (markNb+1) % NB_MARKS;
374             DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s\r",
375                     marks[markNb], displayName, (unsigned)srcSize, (unsigned)cSize, ratio,
376                     (double)srcSize / fastestC );
377 
378             (void)fastestD; (void)crcOrig;   /*  unused when decompression disabled */
379 #if 1
380             /* Decompression */
381             if (!dCompleted) memset(resultBuffer, 0xD6, srcSize);  /* warm result buffer */
382 
383             UTIL_sleepMilli(1); /* give processor time to other processes */
384             UTIL_waitForNextTick();
385             clockStart = UTIL_getTime();
386 
387             if (!dCompleted) {
388                 U32 nbLoops = 0;
389                 if (compressor == BMK_ZSTD) {
390                     ZSTD_DDict* ddict = ZSTD_createDDict(dictBuffer, dictBufferSize);
391                     if (!ddict) EXM_THROW(2, "ZSTD_createDDict() allocation failure");
392                     do {
393                         unsigned blockNb;
394                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
395                             size_t const regenSize = ZSTD_decompress_usingDDict(dctx,
396                                 blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
397                                 blockTable[blockNb].cPtr, blockTable[blockNb].cSize,
398                                 ddict);
399                             if (ZSTD_isError(regenSize)) {
400                                 DISPLAY("ZSTD_decompress_usingDDict() failed on block %u : %s  \n",
401                                           blockNb, ZSTD_getErrorName(regenSize));
402                                 clockLoop = 0;   /* force immediate test end */
403                                 break;
404                             }
405                             blockTable[blockNb].resSize = regenSize;
406                         }
407                         nbLoops++;
408                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
409                     ZSTD_freeDDict(ddict);
410                 } else if (compressor == BMK_ZSTD_STREAM) {
411                     ZSTD_inBuffer inBuffer;
412                     ZSTD_outBuffer outBuffer;
413                     ZSTD_DStream* zbd = ZSTD_createDStream();
414                     size_t rSize;
415                     if (zbd == NULL) EXM_THROW(1, "ZSTD_createDStream() allocation failure");
416                     rSize = ZSTD_initDStream_usingDict(zbd, dictBuffer, dictBufferSize);
417                     if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_initDStream() failed : %s", ZSTD_getErrorName(rSize));
418                     do {
419                         U32 blockNb;
420                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
421                             rSize = ZSTD_resetDStream(zbd);
422                             if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_resetDStream() failed : %s", ZSTD_getErrorName(rSize));
423                             inBuffer.src = blockTable[blockNb].cPtr;
424                             inBuffer.size = blockTable[blockNb].cSize;
425                             inBuffer.pos = 0;
426                             outBuffer.dst = blockTable[blockNb].resPtr;
427                             outBuffer.size = blockTable[blockNb].srcSize;
428                             outBuffer.pos = 0;
429                             rSize = ZSTD_decompressStream(zbd, &outBuffer, &inBuffer);
430                             if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_decompressStream() failed : %s", ZSTD_getErrorName(rSize));
431                             blockTable[blockNb].resSize = outBuffer.pos;
432                         }
433                         nbLoops++;
434                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
435                     ZSTD_freeDStream(zbd);
436                 } else if (compressor == BMK_ZWRAP_ZLIB_REUSE || compressor == BMK_ZWRAP_ZSTD_REUSE || compressor == BMK_ZLIB_REUSE) {
437                     z_stream inf;
438                     int ret;
439                     if (compressor == BMK_ZLIB_REUSE) ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB);
440                     else ZWRAP_setDecompressionType(ZWRAP_AUTO);
441                     inf.zalloc = Z_NULL;
442                     inf.zfree = Z_NULL;
443                     inf.opaque = Z_NULL;
444                     ret = inflateInit(&inf);
445                     if (ret != Z_OK) EXM_THROW(1, "inflateInit failure");
446                     do {
447                         U32 blockNb;
448                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
449                             if (ZWRAP_isUsingZSTDdecompression(&inf))
450                                 ret = ZWRAP_inflateReset_keepDict(&inf); /* reuse dictionary to make decompression faster; inflate will return Z_NEED_DICT only for the first time */
451                             else
452                                 ret = inflateReset(&inf);
453                             if (ret != Z_OK) EXM_THROW(1, "inflateReset failure");
454                             inf.next_in = (z_const z_Bytef*) blockTable[blockNb].cPtr;
455                             inf.avail_in = (uInt)blockTable[blockNb].cSize;
456                             inf.total_in = 0;
457                             inf.next_out = (z_Bytef*) blockTable[blockNb].resPtr;
458                             inf.avail_out = (uInt)blockTable[blockNb].srcSize;
459                             inf.total_out = 0;
460                             ret = inflate(&inf, Z_FINISH);
461                             if (ret == Z_NEED_DICT) {
462                                 ret = inflateSetDictionary(&inf, (const z_Bytef*)dictBuffer, dictBufferSize);
463                                 if (ret != Z_OK) EXM_THROW(1, "inflateSetDictionary failure");
464                                 ret = inflate(&inf, Z_FINISH);
465                             }
466                             if (ret != Z_STREAM_END) EXM_THROW(1, "inflate failure");
467                             blockTable[blockNb].resSize = inf.total_out;
468                         }
469                         nbLoops++;
470                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
471                     ret = inflateEnd(&inf);
472                     if (ret != Z_OK) EXM_THROW(1, "inflateEnd failure");
473                 } else {
474                     z_stream inf;
475                     if (compressor == BMK_ZLIB) ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB);
476                     else ZWRAP_setDecompressionType(ZWRAP_AUTO);
477                     do {
478                         U32 blockNb;
479                         for (blockNb=0; blockNb<nbBlocks; blockNb++) {
480                             int ret;
481                             inf.zalloc = Z_NULL;
482                             inf.zfree = Z_NULL;
483                             inf.opaque = Z_NULL;
484                             ret = inflateInit(&inf);
485                             if (ret != Z_OK) EXM_THROW(1, "inflateInit failure");
486                             inf.next_in = (z_const z_Bytef*) blockTable[blockNb].cPtr;
487                             inf.avail_in = (uInt)blockTable[blockNb].cSize;
488                             inf.total_in = 0;
489                             inf.next_out = (z_Bytef*) blockTable[blockNb].resPtr;
490                             inf.avail_out = (uInt)blockTable[blockNb].srcSize;
491                             inf.total_out = 0;
492                             ret = inflate(&inf, Z_FINISH);
493                             if (ret == Z_NEED_DICT) {
494                                 ret = inflateSetDictionary(&inf, (const z_Bytef*) dictBuffer, dictBufferSize);
495                                 if (ret != Z_OK) EXM_THROW(1, "inflateSetDictionary failure");
496                                 ret = inflate(&inf, Z_FINISH);
497                             }
498                             if (ret != Z_STREAM_END) EXM_THROW(1, "inflate failure");
499                             ret = inflateEnd(&inf);
500                             if (ret != Z_OK) EXM_THROW(1, "inflateEnd failure");
501                             blockTable[blockNb].resSize = inf.total_out;
502                         }
503                         nbLoops++;
504                     } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
505                 }
506                 {   U64 const clockSpan = UTIL_clockSpanMicro(clockStart);
507                     if (clockSpan < fastestD*nbLoops) fastestD = clockSpan / nbLoops;
508                     totalDTime += clockSpan;
509                     dCompleted = totalDTime>maxTime;
510             }   }
511 
512             markNb = (markNb+1) % NB_MARKS;
513             DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s ,%6.1f MB/s\r",
514                     marks[markNb], displayName, (unsigned)srcSize, (unsigned)cSize, ratio,
515                     (double)srcSize / fastestC,
516                     (double)srcSize / fastestD );
517 
518             /* CRC Checking */
519             {   U64 const crcCheck = XXH64(resultBuffer, srcSize, 0);
520                 if (crcOrig!=crcCheck) {
521                     size_t u;
522                     DISPLAY("!!! WARNING !!! %14s : Invalid Checksum : %x != %x   \n", displayName, (unsigned)crcOrig, (unsigned)crcCheck);
523                     for (u=0; u<srcSize; u++) {
524                         if (((const BYTE*)srcBuffer)[u] != ((const BYTE*)resultBuffer)[u]) {
525                             unsigned segNb, bNb, pos;
526                             size_t bacc = 0;
527                             DISPLAY("Decoding error at pos %u ", (unsigned)u);
528                             for (segNb = 0; segNb < nbBlocks; segNb++) {
529                                 if (bacc + blockTable[segNb].srcSize > u) break;
530                                 bacc += blockTable[segNb].srcSize;
531                             }
532                             pos = (U32)(u - bacc);
533                             bNb = pos / (128 KB);
534                             DISPLAY("(block %u, sub %u, pos %u) \n", segNb, bNb, pos);
535                             break;
536                         }
537                         if (u==srcSize-1) {  /* should never happen */
538                             DISPLAY("no difference detected\n");
539                     }   }
540                     break;
541             }   }   /* CRC Checking */
542 #endif
543         }   /* for (testNb = 1; testNb <= (g_nbIterations + !g_nbIterations); testNb++) */
544 
545         if (g_displayLevel == 1) {
546             double cSpeed = (double)srcSize / fastestC;
547             double dSpeed = (double)srcSize / fastestD;
548             if (g_additionalParam)
549                 DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s  %s (param=%d)\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName, g_additionalParam);
550             else
551                 DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s  %s\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName);
552         }
553         DISPLAYLEVEL(2, "%2i#\n", cLevel);
554     }   /* Bench */
555 
556     /* clean up */
557     free(blockTable);
558     free(compressedBuffer);
559     free(resultBuffer);
560     ZSTD_freeCCtx(ctx);
561     ZSTD_freeDCtx(dctx);
562     return 0;
563 }
564 
565 
566 static size_t BMK_findMaxMem(U64 requiredMem)
567 {
568     size_t const step = 64 MB;
569     BYTE* testmem = NULL;
570 
571     requiredMem = (((requiredMem >> 26) + 1) << 26);
572     requiredMem += step;
573     if (requiredMem > maxMemory) requiredMem = maxMemory;
574 
575     do {
576         testmem = (BYTE*)malloc((size_t)requiredMem);
577         requiredMem -= step;
578     } while (!testmem && requiredMem);   /* do not allocate zero bytes */
579 
580     free(testmem);
581     return (size_t)(requiredMem+1);  /* avoid zero */
582 }
583 
584 static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize,
585                             const char* displayName, int cLevel, int cLevelLast,
586                             const size_t* fileSizes, unsigned nbFiles,
587                             const void* dictBuffer, size_t dictBufferSize)
588 {
589     int l;
590 
591     const char* pch = strrchr(displayName, '\\'); /* Windows */
592     if (!pch) pch = strrchr(displayName, '/'); /* Linux */
593     if (pch) displayName = pch+1;
594 
595     SET_REALTIME_PRIORITY;
596 
597     if (g_displayLevel == 1 && !g_additionalParam)
598         DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n",
599                 ZSTD_VERSION_STRING, ZSTD_GIT_COMMIT_STRING,
600                 (unsigned)benchedSize, g_nbIterations, (unsigned)(g_blockSize>>10));
601 
602     if (cLevelLast < cLevel) cLevelLast = cLevel;
603 
604     DISPLAY("benchmarking zstd %s (using ZSTD_CStream)\n", ZSTD_VERSION_STRING);
605     for (l=cLevel; l <= cLevelLast; l++) {
606         BMK_benchMem(srcBuffer, benchedSize,
607                      displayName, l,
608                      fileSizes, nbFiles,
609                      dictBuffer, dictBufferSize, BMK_ZSTD_STREAM);
610     }
611 
612     DISPLAY("benchmarking zstd %s (using ZSTD_CCtx)\n", ZSTD_VERSION_STRING);
613     for (l=cLevel; l <= cLevelLast; l++) {
614         BMK_benchMem(srcBuffer, benchedSize,
615                      displayName, l,
616                      fileSizes, nbFiles,
617                      dictBuffer, dictBufferSize, BMK_ZSTD);
618     }
619 
620     DISPLAY("benchmarking zstd %s (using zlibWrapper)\n", ZSTD_VERSION_STRING);
621     for (l=cLevel; l <= cLevelLast; l++) {
622         BMK_benchMem(srcBuffer, benchedSize,
623                      displayName, l,
624                      fileSizes, nbFiles,
625                      dictBuffer, dictBufferSize, BMK_ZWRAP_ZSTD_REUSE);
626     }
627 
628     DISPLAY("benchmarking zstd %s (zlibWrapper not reusing a context)\n", ZSTD_VERSION_STRING);
629     for (l=cLevel; l <= cLevelLast; l++) {
630         BMK_benchMem(srcBuffer, benchedSize,
631                      displayName, l,
632                      fileSizes, nbFiles,
633                      dictBuffer, dictBufferSize, BMK_ZWRAP_ZSTD);
634     }
635 
636 
637     if (cLevelLast > Z_BEST_COMPRESSION) cLevelLast = Z_BEST_COMPRESSION;
638 
639     DISPLAY("\n");
640     DISPLAY("benchmarking zlib %s\n", ZLIB_VERSION);
641     for (l=cLevel; l <= cLevelLast; l++) {
642         BMK_benchMem(srcBuffer, benchedSize,
643                      displayName, l,
644                      fileSizes, nbFiles,
645                      dictBuffer, dictBufferSize, BMK_ZLIB_REUSE);
646     }
647 
648     DISPLAY("benchmarking zlib %s (zlib not reusing a context)\n", ZLIB_VERSION);
649     for (l=cLevel; l <= cLevelLast; l++) {
650         BMK_benchMem(srcBuffer, benchedSize,
651                      displayName, l,
652                      fileSizes, nbFiles,
653                      dictBuffer, dictBufferSize, BMK_ZLIB);
654     }
655 
656     DISPLAY("benchmarking zlib %s (using zlibWrapper)\n", ZLIB_VERSION);
657     for (l=cLevel; l <= cLevelLast; l++) {
658         BMK_benchMem(srcBuffer, benchedSize,
659                      displayName, l,
660                      fileSizes, nbFiles,
661                      dictBuffer, dictBufferSize, BMK_ZWRAP_ZLIB_REUSE);
662     }
663 
664     DISPLAY("benchmarking zlib %s (zlibWrapper not reusing a context)\n", ZLIB_VERSION);
665     for (l=cLevel; l <= cLevelLast; l++) {
666         BMK_benchMem(srcBuffer, benchedSize,
667                      displayName, l,
668                      fileSizes, nbFiles,
669                      dictBuffer, dictBufferSize, BMK_ZWRAP_ZLIB);
670     }
671 }
672 
673 
674 /*! BMK_loadFiles() :
675     Loads `buffer` with content of files listed within `fileNamesTable`.
676     At most, fills `buffer` entirely */
677 static void BMK_loadFiles(void* buffer, size_t bufferSize,
678                           size_t* fileSizes,
679                           const char** fileNamesTable, unsigned nbFiles)
680 {
681     size_t pos = 0, totalSize = 0;
682     unsigned n;
683     for (n=0; n<nbFiles; n++) {
684         FILE* f;
685         U64 fileSize = UTIL_getFileSize(fileNamesTable[n]);
686         if (UTIL_isDirectory(fileNamesTable[n])) {
687             DISPLAYLEVEL(2, "Ignoring %s directory...       \n", fileNamesTable[n]);
688             fileSizes[n] = 0;
689             continue;
690         }
691         if (fileSize == UTIL_FILESIZE_UNKNOWN) {
692             DISPLAYLEVEL(2, "Cannot determine size of %s ...    \n", fileNamesTable[n]);
693             fileSizes[n] = 0;
694             continue;
695         }
696         f = fopen(fileNamesTable[n], "rb");
697         if (f==NULL) EXM_THROW(10, "impossible to open file %s", fileNamesTable[n]);
698         DISPLAYUPDATE(2, "Loading %s...       \r", fileNamesTable[n]);
699         if (fileSize > bufferSize-pos) fileSize = bufferSize-pos, nbFiles=n;   /* buffer too small - stop after this file */
700         { size_t const readSize = fread(((char*)buffer)+pos, 1, (size_t)fileSize, f);
701           if (readSize != (size_t)fileSize) EXM_THROW(11, "could not read %s", fileNamesTable[n]);
702           pos += readSize; }
703         fileSizes[n] = (size_t)fileSize;
704         totalSize += (size_t)fileSize;
705         fclose(f);
706     }
707 
708     if (totalSize == 0) EXM_THROW(12, "no data to bench");
709 }
710 
711 static void BMK_benchFileTable(const char** fileNamesTable, unsigned nbFiles,
712                                const char* dictFileName, int cLevel, int cLevelLast)
713 {
714     void* srcBuffer;
715     size_t benchedSize;
716     void* dictBuffer = NULL;
717     size_t dictBufferSize = 0;
718     size_t* fileSizes = (size_t*)malloc(nbFiles * sizeof(size_t));
719     U64 const totalSizeToLoad = UTIL_getTotalFileSize(fileNamesTable, nbFiles);
720     char mfName[20] = {0};
721 
722     if (!fileSizes) EXM_THROW(12, "not enough memory for fileSizes");
723 
724     /* Load dictionary */
725     if (dictFileName != NULL) {
726         U64 const dictFileSize = UTIL_getFileSize(dictFileName);
727         if (dictFileSize > 64 MB)
728             EXM_THROW(10, "dictionary file %s too large", dictFileName);
729         dictBufferSize = (size_t)dictFileSize;
730         dictBuffer = malloc(dictBufferSize);
731         if (dictBuffer==NULL)
732             EXM_THROW(11, "not enough memory for dictionary (%u bytes)", (unsigned)dictBufferSize);
733         BMK_loadFiles(dictBuffer, dictBufferSize, fileSizes, &dictFileName, 1);
734     }
735 
736     /* Memory allocation & restrictions */
737     benchedSize = BMK_findMaxMem(totalSizeToLoad * 3) / 3;
738     if ((U64)benchedSize > totalSizeToLoad) benchedSize = (size_t)totalSizeToLoad;
739     if (benchedSize < totalSizeToLoad)
740         DISPLAY("Not enough memory; testing %u MB only...\n", (unsigned)(benchedSize >> 20));
741     srcBuffer = malloc(benchedSize + !benchedSize);
742     if (!srcBuffer) EXM_THROW(12, "not enough memory");
743 
744     /* Load input buffer */
745     BMK_loadFiles(srcBuffer, benchedSize, fileSizes, fileNamesTable, nbFiles);
746 
747     /* Bench */
748     snprintf (mfName, sizeof(mfName), " %u files", nbFiles);
749     {   const char* displayName = (nbFiles > 1) ? mfName : fileNamesTable[0];
750         BMK_benchCLevel(srcBuffer, benchedSize,
751                         displayName, cLevel, cLevelLast,
752                         fileSizes, nbFiles,
753                         dictBuffer, dictBufferSize);
754     }
755 
756     /* clean up */
757     free(srcBuffer);
758     free(dictBuffer);
759     free(fileSizes);
760 }
761 
762 
763 static void BMK_syntheticTest(int cLevel, int cLevelLast, double compressibility)
764 {
765     char name[20] = {0};
766     size_t benchedSize = 10000000;
767     void* const srcBuffer = malloc(benchedSize);
768 
769     /* Memory allocation */
770     if (!srcBuffer) EXM_THROW(21, "not enough memory");
771 
772     /* Fill input buffer */
773     RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0);
774 
775     /* Bench */
776     snprintf (name, sizeof(name), "Synthetic %2u%%", (unsigned)(compressibility*100));
777     BMK_benchCLevel(srcBuffer, benchedSize, name, cLevel, cLevelLast, &benchedSize, 1, NULL, 0);
778 
779     /* clean up */
780     free(srcBuffer);
781 }
782 
783 
784 int BMK_benchFiles(const char** fileNamesTable, unsigned nbFiles,
785                    const char* dictFileName, int cLevel, int cLevelLast)
786 {
787     double const compressibility = (double)g_compressibilityDefault / 100;
788 
789     if (nbFiles == 0)
790         BMK_syntheticTest(cLevel, cLevelLast, compressibility);
791     else
792         BMK_benchFileTable(fileNamesTable, nbFiles, dictFileName, cLevel, cLevelLast);
793     return 0;
794 }
795 
796 
797 
798 
799 /*-************************************
800 *  Command Line
801 **************************************/
802 static int usage(const char* programName)
803 {
804     DISPLAY(WELCOME_MESSAGE);
805     DISPLAY( "Usage :\n");
806     DISPLAY( "      %s [args] [FILE(s)] [-o file]\n", programName);
807     DISPLAY( "\n");
808     DISPLAY( "FILE    : a filename\n");
809     DISPLAY( "          with no FILE, or when FILE is - , read standard input\n");
810     DISPLAY( "Arguments :\n");
811     DISPLAY( " -D file: use `file` as Dictionary \n");
812     DISPLAY( " -h/-H  : display help/long help and exit\n");
813     DISPLAY( " -V     : display Version number and exit\n");
814     DISPLAY( " -v     : verbose mode; specify multiple times to increase log level (default:%d)\n", DEFAULT_DISPLAY_LEVEL);
815     DISPLAY( " -q     : suppress warnings; specify twice to suppress errors too\n");
816 #ifdef UTIL_HAS_CREATEFILELIST
817     DISPLAY( " -r     : operate recursively on directories\n");
818 #endif
819     DISPLAY( "\n");
820     DISPLAY( "Benchmark arguments :\n");
821     DISPLAY( " -b#    : benchmark file(s), using # compression level (default : %d) \n", ZSTDCLI_CLEVEL_DEFAULT);
822     DISPLAY( " -e#    : test all compression levels from -bX to # (default: %d)\n", ZSTDCLI_CLEVEL_DEFAULT);
823     DISPLAY( " -i#    : minimum evaluation time in seconds (default : 3s)\n");
824     DISPLAY( " -B#    : cut file into independent blocks of size # (default: no block)\n");
825     return 0;
826 }
827 
828 static int badusage(const char* programName)
829 {
830     DISPLAYLEVEL(1, "Incorrect parameters\n");
831     if (g_displayLevel >= 1) usage(programName);
832     return 1;
833 }
834 
835 static void waitEnter(void)
836 {
837     int unused;
838     DISPLAY("Press enter to continue...\n");
839     unused = getchar();
840     (void)unused;
841 }
842 
843 /*! readU32FromChar() :
844     @return : unsigned integer value reach from input in `char` format
845     Will also modify `*stringPtr`, advancing it to position where it stopped reading.
846     Note : this function can overflow if digit string > MAX_UINT */
847 static unsigned readU32FromChar(const char** stringPtr)
848 {
849     unsigned result = 0;
850     while ((**stringPtr >='0') && (**stringPtr <='9'))
851         result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
852     return result;
853 }
854 
855 
856 #define CLEAN_RETURN(i) { operationResult = (i); goto _end; }
857 
858 int main(int argCount, char** argv)
859 {
860     int argNb,
861         main_pause=0,
862         nextEntryIsDictionary=0,
863         operationResult=0,
864         nextArgumentIsFile=0;
865     int cLevel = ZSTDCLI_CLEVEL_DEFAULT;
866     int cLevelLast = 1;
867     unsigned recursive = 0;
868     const char** filenameTable = (const char**)malloc(argCount * sizeof(const char*));   /* argCount >= 1 */
869     unsigned filenameIdx = 0;
870     const char* programName = argv[0];
871     const char* dictFileName = NULL;
872     char* dynNameSpace = NULL;
873 #ifdef UTIL_HAS_CREATEFILELIST
874     const char** fileNamesTable = NULL;
875     char* fileNamesBuf = NULL;
876     unsigned fileNamesNb;
877 #endif
878 
879     /* init */
880     if (filenameTable==NULL) { DISPLAY("zstd: %s \n", strerror(errno)); exit(1); }
881     displayOut = stderr;
882 
883     /* Pick out program name from path. Don't rely on stdlib because of conflicting behavior */
884     {   size_t pos;
885         for (pos = (int)strlen(programName); pos > 0; pos--) { if (programName[pos] == '/') { pos++; break; } }
886         programName += pos;
887     }
888 
889      /* command switches */
890     for(argNb=1; argNb<argCount; argNb++) {
891         const char* argument = argv[argNb];
892         if(!argument) continue;   /* Protection if argument empty */
893 
894         if (nextArgumentIsFile==0) {
895 
896             /* long commands (--long-word) */
897             if (!strcmp(argument, "--")) { nextArgumentIsFile=1; continue; }
898             if (!strcmp(argument, "--version")) { displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); }
899             if (!strcmp(argument, "--help")) { displayOut=stdout; CLEAN_RETURN(usage(programName)); }
900             if (!strcmp(argument, "--verbose")) { g_displayLevel++; continue; }
901             if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
902 
903             /* Decode commands (note : aggregated commands are allowed) */
904             if (argument[0]=='-') {
905                 argument++;
906 
907                 while (argument[0]!=0) {
908                     switch(argument[0])
909                     {
910                         /* Display help */
911                     case 'V': displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0);   /* Version Only */
912                     case 'H':
913                     case 'h': displayOut=stdout; CLEAN_RETURN(usage(programName));
914 
915                         /* Use file content as dictionary */
916                     case 'D': nextEntryIsDictionary = 1; argument++; break;
917 
918                         /* Verbose mode */
919                     case 'v': g_displayLevel++; argument++; break;
920 
921                         /* Quiet mode */
922                     case 'q': g_displayLevel--; argument++; break;
923 
924 #ifdef UTIL_HAS_CREATEFILELIST
925                         /* recursive */
926                     case 'r': recursive=1; argument++; break;
927 #endif
928 
929                         /* Benchmark */
930                     case 'b':
931                             /* first compression Level */
932                             argument++;
933                             cLevel = readU32FromChar(&argument);
934                             break;
935 
936                         /* range bench (benchmark only) */
937                     case 'e':
938                             /* last compression Level */
939                             argument++;
940                             cLevelLast = readU32FromChar(&argument);
941                             break;
942 
943                         /* Modify Nb Iterations (benchmark only) */
944                     case 'i':
945                         argument++;
946                         {   U32 const iters = readU32FromChar(&argument);
947                             BMK_setNotificationLevel(g_displayLevel);
948                             BMK_SetNbIterations(iters);
949                         }
950                         break;
951 
952                         /* cut input into blocks (benchmark only) */
953                     case 'B':
954                         argument++;
955                         {   size_t bSize = readU32FromChar(&argument);
956                             if (toupper(*argument)=='K') bSize<<=10, argument++;  /* allows using KB notation */
957                             if (toupper(*argument)=='M') bSize<<=20, argument++;
958                             if (toupper(*argument)=='B') argument++;
959                             BMK_setNotificationLevel(g_displayLevel);
960                             BMK_SetBlockSize(bSize);
961                         }
962                         break;
963 
964                         /* Pause at the end (-p) or set an additional param (-p#) (hidden option) */
965                     case 'p': argument++;
966                         if ((*argument>='0') && (*argument<='9')) {
967                             BMK_setAdditionalParam(readU32FromChar(&argument));
968                         } else
969                             main_pause=1;
970                         break;
971                         /* unknown command */
972                     default : CLEAN_RETURN(badusage(programName));
973                     }
974                 }
975                 continue;
976             }   /* if (argument[0]=='-') */
977 
978         }   /* if (nextArgumentIsAFile==0) */
979 
980         if (nextEntryIsDictionary) {
981             nextEntryIsDictionary = 0;
982             dictFileName = argument;
983             continue;
984         }
985 
986         /* add filename to list */
987         filenameTable[filenameIdx++] = argument;
988     }
989 
990     /* Welcome message (if verbose) */
991     DISPLAYLEVEL(3, WELCOME_MESSAGE);
992 
993 #ifdef UTIL_HAS_CREATEFILELIST
994     if (recursive) {
995         fileNamesTable = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb, 1);
996         if (fileNamesTable) {
997             unsigned u;
998             for (u=0; u<fileNamesNb; u++) DISPLAYLEVEL(4, "%u %s\n", u, fileNamesTable[u]);
999             free((void*)filenameTable);
1000             filenameTable = fileNamesTable;
1001             filenameIdx = fileNamesNb;
1002         }
1003     }
1004 #endif
1005 
1006     BMK_setNotificationLevel(g_displayLevel);
1007     BMK_benchFiles(filenameTable, filenameIdx, dictFileName, cLevel, cLevelLast);
1008 
1009 _end:
1010     if (main_pause) waitEnter();
1011     free(dynNameSpace);
1012 #ifdef UTIL_HAS_CREATEFILELIST
1013     if (fileNamesTable)
1014         UTIL_freeFileList(fileNamesTable, fileNamesBuf);
1015     else
1016 #endif
1017         free((void*)filenameTable);
1018     return operationResult;
1019 }
1020