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checksum generation can be selected from command line (--checksum)

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This commit is contained in:
Yann Collet 2016-06-01 19:22:15 +02:00
parent eb70043e59
commit 87cfbe3e5f
3 changed files with 6 additions and 0 deletions
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3
programs/fileio.c
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@ -135,6 +135,8 @@ static U32 g_sparseFileSupport = 1; /* 0 : no sparse allowed; 1: auto (file ye
void FIO_setSparseWrite(unsigned sparse) { g_sparseFileSupport=sparse; }
static U32 g_dictIDFlag = 1;
void FIO_setDictIDFlag(unsigned dictIDFlag) { g_dictIDFlag = dictIDFlag; }
static U32 g_checksumFlag = 0;
void FIO_setChecksumFlag(unsigned checksumFlag) { g_checksumFlag = checksumFlag; }
/*-*************************************
@ -313,6 +315,7 @@ static int FIO_compressFilename_internal(cRess_t ress,
memset(&params, 0, sizeof(params));
params.cParams = ZSTD_getCParams(cLevel, fileSize, ress.dictBufferSize);
params.fParams.contentSizeFlag = 1;
params.fParams.checksumFlag = g_checksumFlag;
params.fParams.noDictIDFlag = !g_dictIDFlag;
if (g_maxWLog) if (params.cParams.windowLog > g_maxWLog) params.cParams.windowLog = g_maxWLog;
{ size_t const errorCode = ZBUFF_compressInit_advanced(ress.ctx, ress.dictBuffer, ress.dictBufferSize, params, fileSize);

1
programs/fileio.h
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@ -49,6 +49,7 @@ void FIO_setNotificationLevel(unsigned level);
void FIO_setMaxWLog(unsigned maxWLog); /**< if `maxWLog` == 0, no max enforced */
void FIO_setSparseWrite(unsigned sparse); /**< 0: no sparse; 1: disable on stdout; 2: always enabled */
void FIO_setDictIDFlag(unsigned dictIDFlag);
void FIO_setChecksumFlag(unsigned checksumFlag);
/*-*************************************

2
programs/zstdcli.c
View File

@ -134,6 +134,7 @@ static int usage_advanced(const char* programName)
#ifndef ZSTD_NOCOMPRESS
DISPLAY( "--ultra : enable ultra modes (requires more memory to decompress)\n");
DISPLAY( "--no-dictID:don't write dictID into header (dictionary compression)\n");
DISPLAY( "--checksum:compute checksum of content, for decompressor validation\n");
#endif
#ifndef ZSTD_NODECOMPRESS
DISPLAY( " -t : test compressed file integrity \n");
@ -240,6 +241,7 @@ int main(int argCount, const char** argv)
if (!strcmp(argument, "--quiet")) { displayLevel--; continue; }
if (!strcmp(argument, "--stdout")) { forceStdout=1; outFileName=stdoutmark; displayLevel=1; continue; }
if (!strcmp(argument, "--ultra")) { FIO_setMaxWLog(0); continue; }
if (!strcmp(argument, "--checksum")) { FIO_setChecksumFlag(2); continue; }
if (!strcmp(argument, "--no-dictID")) { FIO_setDictIDFlag(0); continue; }
if (!strcmp(argument, "--sparse")) { FIO_setSparseWrite(2); continue; }
if (!strcmp(argument, "--no-sparse")) { FIO_setSparseWrite(0); continue; }