From 8c1ae998379bce4a0e719aaac43a777713ab5c00 Mon Sep 17 00:00:00 2001 From: Yann Collet Date: Mon, 22 Sep 2014 18:42:00 +0100 Subject: fixed : clang warnings --- examples/blockStreaming_doubleBuffer.c | 6 +- examples/blockStreaming_lineByLine.c | 6 +- examples/blockStreaming_ringBuffer.c | 6 +- lz4frame.c | 897 +++++++++++++++++---------------- programs/frametest.c | 308 +++++------ programs/lz4cli.c | 6 +- 6 files changed, 628 insertions(+), 601 deletions(-) diff --git a/examples/blockStreaming_doubleBuffer.c b/examples/blockStreaming_doubleBuffer.c index bd87e77..0adf6ae 100644 --- a/examples/blockStreaming_doubleBuffer.c +++ b/examples/blockStreaming_doubleBuffer.c @@ -140,9 +140,9 @@ int main(int argc, char* argv[]) return 0; } - sprintf(inpFilename, "%s", argv[1]); - sprintf(lz4Filename, "%s.lz4s-%d", argv[1], BLOCK_BYTES); - sprintf(decFilename, "%s.lz4s-%d.dec", argv[1], BLOCK_BYTES); + snprintf(inpFilename, 256, "%s", argv[1]); + snprintf(lz4Filename, 256, "%s.lz4s-%d", argv[1], BLOCK_BYTES); + snprintf(decFilename, 256, "%s.lz4s-%d.dec", argv[1], BLOCK_BYTES); printf("inp = [%s]\n", inpFilename); printf("lz4 = [%s]\n", lz4Filename); diff --git a/examples/blockStreaming_lineByLine.c b/examples/blockStreaming_lineByLine.c index e236a44..6d14801 100644 --- a/examples/blockStreaming_lineByLine.c +++ b/examples/blockStreaming_lineByLine.c @@ -158,9 +158,9 @@ int main(int argc, char* argv[]) return 0; } - sprintf(inpFilename, "%s", argv[1]); - sprintf(lz4Filename, "%s.lz4s", argv[1]); - sprintf(decFilename, "%s.lz4s.dec", argv[1]); + snprintf(inpFilename, 256, "%s", argv[1]); + snprintf(lz4Filename, 256, "%s.lz4s", argv[1]); + snprintf(decFilename, 256, "%s.lz4s.dec", argv[1]); printf("inp = [%s]\n", inpFilename); printf("lz4 = [%s]\n", lz4Filename); diff --git a/examples/blockStreaming_ringBuffer.c b/examples/blockStreaming_ringBuffer.c index 725e375..bfdbed1 100644 --- a/examples/blockStreaming_ringBuffer.c +++ b/examples/blockStreaming_ringBuffer.c @@ -136,9 +136,9 @@ int main(int argc, char** argv) return 0; } - sprintf(inpFilename, "%s", argv[1]); - sprintf(lz4Filename, "%s.lz4s-%d", argv[1], 0); - sprintf(decFilename, "%s.lz4s-%d.dec", argv[1], 0); + snprintf(inpFilename, 256, "%s", argv[1]); + snprintf(lz4Filename, 256, "%s.lz4s-%d", argv[1], 0); + snprintf(decFilename, 256, "%s.lz4s-%d.dec", argv[1], 0); printf("inp = [%s]\n", inpFilename); printf("lz4 = [%s]\n", lz4Filename); diff --git a/lz4frame.c b/lz4frame.c index 35e5b0b..3a750c0 100644 --- a/lz4frame.c +++ b/lz4frame.c @@ -76,17 +76,17 @@ **************************************/ #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */ # include - typedef uint8_t BYTE; - typedef uint16_t U16; - typedef uint32_t U32; - typedef int32_t S32; - typedef uint64_t U64; +typedef uint8_t BYTE; +typedef uint16_t U16; +typedef uint32_t U32; +typedef int32_t S32; +typedef uint64_t U64; #else - typedef unsigned char BYTE; - typedef unsigned short U16; - typedef unsigned int U32; - typedef signed int S32; - typedef unsigned long long U64; +typedef unsigned char BYTE; +typedef unsigned short U16; +typedef unsigned int U32; +typedef signed int S32; +typedef unsigned long long U64; #endif @@ -112,37 +112,39 @@ /************************************** Structures and local types **************************************/ -typedef struct { - LZ4F_preferences_t prefs; - unsigned version; - unsigned cStage; - size_t maxBlockSize; - size_t maxBufferSize; - BYTE* tmpBuff; - BYTE* tmpIn; - size_t tmpInSize; - XXH32_stateSpace_t xxh; - LZ4_stream_t lz4ctx; +typedef struct +{ + LZ4F_preferences_t prefs; + unsigned version; + unsigned cStage; + size_t maxBlockSize; + size_t maxBufferSize; + BYTE* tmpBuff; + BYTE* tmpIn; + size_t tmpInSize; + XXH32_stateSpace_t xxh; + LZ4_stream_t lz4ctx; } LZ4F_cctx_internal_t; -typedef struct { +typedef struct +{ LZ4F_frameInfo_t frameInfo; - unsigned version; - unsigned dStage; - size_t maxBlockSize; - size_t maxBufferSize; - const BYTE* srcExpect; - BYTE* tmpIn; - size_t tmpInSize; - size_t tmpInTarget; - BYTE* tmpOutBuffer; - BYTE* dict; - size_t dictSize; - BYTE* tmpOut; - size_t tmpOutSize; - size_t tmpOutStart; - XXH32_stateSpace_t xxh; - BYTE header[8]; + unsigned version; + unsigned dStage; + size_t maxBlockSize; + size_t maxBufferSize; + const BYTE* srcExpect; + BYTE* tmpIn; + size_t tmpInSize; + size_t tmpInTarget; + BYTE* tmpOutBuffer; + BYTE* dict; + size_t dictSize; + BYTE* tmpOut; + size_t tmpOutSize; + size_t tmpOutStart; + XXH32_stateSpace_t xxh; + BYTE header[8]; } LZ4F_dctx_internal_t; @@ -171,7 +173,7 @@ typedef enum { OK_NoError=0, ERROR_GENERIC = 1, int LZ4F_isError(LZ4F_errorCode_t code) { - return (code > (LZ4F_errorCode_t)(-ERROR_maxCode)); + return (code > (LZ4F_errorCode_t)(-ERROR_maxCode)); } const char* LZ4F_getErrorName(LZ4F_errorCode_t code) @@ -187,22 +189,22 @@ const char* LZ4F_getErrorName(LZ4F_errorCode_t code) **************************************/ static size_t LZ4F_getBlockSize(unsigned blockSizeID) { - static const size_t blockSizes[4] = { 64 KB, 256 KB, 1 MB, 4 MB }; + static const size_t blockSizes[4] = { 64 KB, 256 KB, 1 MB, 4 MB }; - if (blockSizeID == 0) blockSizeID = LZ4F_BLOCKSIZEID_DEFAULT; - blockSizeID -= 4; - if (blockSizeID > 3) return (size_t)-ERROR_maxBlockSize_invalid; - return blockSizes[blockSizeID]; + if (blockSizeID == 0) blockSizeID = LZ4F_BLOCKSIZEID_DEFAULT; + blockSizeID -= 4; + if (blockSizeID > 3) return (size_t)-ERROR_maxBlockSize_invalid; + return blockSizes[blockSizeID]; } /* unoptimized version; solves endianess & alignment issues */ static void LZ4F_writeLE32 (BYTE* dstPtr, U32 value32) { - dstPtr[0] = (BYTE)value32; - dstPtr[1] = (BYTE)(value32 >> 8); - dstPtr[2] = (BYTE)(value32 >> 16); - dstPtr[3] = (BYTE)(value32 >> 24); + dstPtr[0] = (BYTE)value32; + dstPtr[1] = (BYTE)(value32 >> 8); + dstPtr[2] = (BYTE)(value32 >> 16); + dstPtr[3] = (BYTE)(value32 >> 24); } static U32 LZ4F_readLE32 (const BYTE* srcPtr) @@ -217,8 +219,8 @@ static U32 LZ4F_readLE32 (const BYTE* srcPtr) static BYTE LZ4F_headerChecksum (const BYTE* header, size_t length) { - U32 xxh = XXH32(header, (U32)length, 0); - return (BYTE)(xxh >> 8); + U32 xxh = XXH32(header, (U32)length, 0); + return (BYTE)(xxh >> 8); } @@ -227,17 +229,17 @@ static BYTE LZ4F_headerChecksum (const BYTE* header, size_t length) **************************************/ size_t LZ4F_compressFrameBound(size_t srcSize, const LZ4F_preferences_t* preferencesPtr) { - LZ4F_preferences_t prefs = { 0 }; - size_t headerSize; - size_t streamSize; + LZ4F_preferences_t prefs = { 0 }; + size_t headerSize; + size_t streamSize; - if (preferencesPtr!=NULL) prefs = *preferencesPtr; - prefs.autoFlush = 1; + if (preferencesPtr!=NULL) prefs = *preferencesPtr; + prefs.autoFlush = 1; - headerSize = 7; /* basic header size (no option) including magic number */ - streamSize = LZ4F_compressBound(srcSize, &prefs); + headerSize = 7; /* basic header size (no option) including magic number */ + streamSize = LZ4F_compressBound(srcSize, &prefs); - return headerSize + streamSize; + return headerSize + streamSize; } @@ -254,11 +256,11 @@ size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuf { LZ4F_cctx_internal_t cctxI = { 0 }; /* works because no allocation */ LZ4F_preferences_t prefs = { 0 }; - LZ4F_compressOptions_t options = { 0 }; - LZ4F_errorCode_t errorCode; - BYTE* const dstStart = (BYTE*) dstBuffer; - BYTE* dstPtr = dstStart; - BYTE* const dstEnd = dstStart + dstMaxSize; + LZ4F_compressOptions_t options = { 0 }; + LZ4F_errorCode_t errorCode; + BYTE* const dstStart = (BYTE*) dstBuffer; + BYTE* dstPtr = dstStart; + BYTE* const dstEnd = dstStart + dstMaxSize; cctxI.version = LZ4F_VERSION; @@ -285,23 +287,23 @@ size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuf options.stableSrc = 1; - if (dstMaxSize < LZ4F_compressFrameBound(srcSize, &prefs)) - return (size_t)-ERROR_dstMaxSize_tooSmall; + if (dstMaxSize < LZ4F_compressFrameBound(srcSize, &prefs)) + return (size_t)-ERROR_dstMaxSize_tooSmall; - errorCode = LZ4F_compressBegin(&cctxI, dstBuffer, dstMaxSize, &prefs); /* write header */ - if (LZ4F_isError(errorCode)) return errorCode; - dstPtr += errorCode; /* header size */ + errorCode = LZ4F_compressBegin(&cctxI, dstBuffer, dstMaxSize, &prefs); /* write header */ + if (LZ4F_isError(errorCode)) return errorCode; + dstPtr += errorCode; /* header size */ - dstMaxSize -= errorCode; + dstMaxSize -= errorCode; errorCode = LZ4F_compressUpdate(&cctxI, dstPtr, dstMaxSize, srcBuffer, srcSize, &options); - if (LZ4F_isError(errorCode)) return errorCode; - dstPtr += errorCode; + if (LZ4F_isError(errorCode)) return errorCode; + dstPtr += errorCode; - errorCode = LZ4F_compressEnd(&cctxI, dstPtr, dstEnd-dstPtr, &options); /* flush last block, and generate suffix */ - if (LZ4F_isError(errorCode)) return errorCode; - dstPtr += errorCode; + errorCode = LZ4F_compressEnd(&cctxI, dstPtr, dstEnd-dstPtr, &options); /* flush last block, and generate suffix */ + if (LZ4F_isError(errorCode)) return errorCode; + dstPtr += errorCode; - return (dstPtr - dstStart); + return (dstPtr - dstStart); } @@ -319,28 +321,28 @@ size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuf */ LZ4F_errorCode_t LZ4F_createCompressionContext(LZ4F_compressionContext_t* LZ4F_compressionContextPtr, unsigned version) { - LZ4F_cctx_internal_t* cctxPtr; + LZ4F_cctx_internal_t* cctxPtr; - cctxPtr = ALLOCATOR(sizeof(LZ4F_cctx_internal_t)); - if (cctxPtr==NULL) return (LZ4F_errorCode_t)-ERROR_allocation_failed; + cctxPtr = ALLOCATOR(sizeof(LZ4F_cctx_internal_t)); + if (cctxPtr==NULL) return (LZ4F_errorCode_t)-ERROR_allocation_failed; - cctxPtr->version = version; - cctxPtr->cStage = 0; /* Next stage : write header */ + cctxPtr->version = version; + cctxPtr->cStage = 0; /* Next stage : write header */ - *LZ4F_compressionContextPtr = (LZ4F_compressionContext_t)cctxPtr; + *LZ4F_compressionContextPtr = (LZ4F_compressionContext_t)cctxPtr; - return OK_NoError; + return OK_NoError; } LZ4F_errorCode_t LZ4F_freeCompressionContext(LZ4F_compressionContext_t LZ4F_compressionContext) { - LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)LZ4F_compressionContext; + LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)LZ4F_compressionContext; - FREEMEM(cctxPtr->tmpBuff); - FREEMEM(LZ4F_compressionContext); + FREEMEM(cctxPtr->tmpBuff); + FREEMEM(LZ4F_compressionContext); - return OK_NoError; + return OK_NoError; } @@ -353,26 +355,26 @@ LZ4F_errorCode_t LZ4F_freeCompressionContext(LZ4F_compressionContext_t LZ4F_comp size_t LZ4F_compressBegin(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const LZ4F_preferences_t* preferencesPtr) { LZ4F_preferences_t prefNull = { 0 }; - LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; - BYTE* const dstStart = (BYTE*)dstBuffer; - BYTE* dstPtr = dstStart; - BYTE* headerStart; - size_t requiredBuffSize; - - if (dstMaxSize < LZ4F_MAXHEADERFRAME_SIZE) return (size_t)-ERROR_dstMaxSize_tooSmall; - if (cctxPtr->cStage != 0) return (size_t)-ERROR_GENERIC; - if (preferencesPtr == NULL) preferencesPtr = &prefNull; - - /* Buffer Management */ - cctxPtr->prefs = *preferencesPtr; - if (cctxPtr->prefs.frameInfo.blockSizeID == 0) cctxPtr->prefs.frameInfo.blockSizeID = LZ4F_BLOCKSIZEID_DEFAULT; - cctxPtr->maxBlockSize = LZ4F_getBlockSize(cctxPtr->prefs.frameInfo.blockSizeID); - - requiredBuffSize = cctxPtr->maxBlockSize + ((cctxPtr->prefs.frameInfo.blockMode == blockLinked) * 128 KB); - if (preferencesPtr->autoFlush) + LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; + BYTE* const dstStart = (BYTE*)dstBuffer; + BYTE* dstPtr = dstStart; + BYTE* headerStart; + size_t requiredBuffSize; + + if (dstMaxSize < LZ4F_MAXHEADERFRAME_SIZE) return (size_t)-ERROR_dstMaxSize_tooSmall; + if (cctxPtr->cStage != 0) return (size_t)-ERROR_GENERIC; + if (preferencesPtr == NULL) preferencesPtr = &prefNull; + + /* Buffer Management */ + cctxPtr->prefs = *preferencesPtr; + if (cctxPtr->prefs.frameInfo.blockSizeID == 0) cctxPtr->prefs.frameInfo.blockSizeID = LZ4F_BLOCKSIZEID_DEFAULT; + cctxPtr->maxBlockSize = LZ4F_getBlockSize(cctxPtr->prefs.frameInfo.blockSizeID); + + requiredBuffSize = cctxPtr->maxBlockSize + ((cctxPtr->prefs.frameInfo.blockMode == blockLinked) * 128 KB); + if (preferencesPtr->autoFlush) requiredBuffSize = (cctxPtr->prefs.frameInfo.blockMode == blockLinked) * 64 KB; /* just needs dict */ - if (cctxPtr->maxBufferSize < requiredBuffSize) + if (cctxPtr->maxBufferSize < requiredBuffSize) { cctxPtr->maxBufferSize = requiredBuffSize; FREEMEM(cctxPtr->tmpBuff); @@ -381,27 +383,27 @@ size_t LZ4F_compressBegin(LZ4F_compressionContext_t compressionContext, void* ds } cctxPtr->tmpIn = cctxPtr->tmpBuff; cctxPtr->tmpInSize = 0; - XXH32_resetState(&(cctxPtr->xxh), 0); - LZ4_resetStream(&(cctxPtr->lz4ctx)); + XXH32_resetState(&(cctxPtr->xxh), 0); + LZ4_resetStream(&(cctxPtr->lz4ctx)); - /* Magic Number */ - LZ4F_writeLE32(dstPtr, LZ4F_MAGICNUMBER); - dstPtr += 4; - headerStart = dstPtr; + /* Magic Number */ + LZ4F_writeLE32(dstPtr, LZ4F_MAGICNUMBER); + dstPtr += 4; + headerStart = dstPtr; - /* FLG Byte */ - //cctxPtr->prefs.frameInfo.blockMode = 1; // <============ debug + /* FLG Byte */ + //cctxPtr->prefs.frameInfo.blockMode = 1; // <============ debug *dstPtr++ = ((1 & _2BITS) << 6) /* Version('01') */ - + ((cctxPtr->prefs.frameInfo.blockMode & _1BIT ) << 5) /* Block mode */ - + (char)((cctxPtr->prefs.frameInfo.contentChecksumFlag & _1BIT ) << 2); /* Stream checksum */ - /* BD Byte */ + + ((cctxPtr->prefs.frameInfo.blockMode & _1BIT ) << 5) /* Block mode */ + + (char)((cctxPtr->prefs.frameInfo.contentChecksumFlag & _1BIT ) << 2); /* Stream checksum */ + /* BD Byte */ *dstPtr++ = (char)((cctxPtr->prefs.frameInfo.blockSizeID & _3BITS) << 4); - /* CRC Byte */ - *dstPtr++ = LZ4F_headerChecksum(headerStart, 2); + /* CRC Byte */ + *dstPtr++ = LZ4F_headerChecksum(headerStart, 2); - cctxPtr->cStage = 1; /* header written, wait for data block */ + cctxPtr->cStage = 1; /* header written, wait for data block */ - return (dstPtr - dstStart); + return (dstPtr - dstStart); } @@ -412,15 +414,15 @@ size_t LZ4F_compressBegin(LZ4F_compressionContext_t compressionContext, void* ds size_t LZ4F_compressBound(size_t srcSize, const LZ4F_preferences_t* preferencesPtr) { LZ4F_frameInfo_t* frameInfoPtr = (LZ4F_frameInfo_t*)preferencesPtr; /* works because prefs starts with frameInfo */ - blockSizeID_t bid = (frameInfoPtr==NULL) ? LZ4F_BLOCKSIZEID_DEFAULT : frameInfoPtr->blockSizeID; - size_t blockSize = LZ4F_getBlockSize(bid); - unsigned nbBlocks = (unsigned)(srcSize / blockSize) + 1; - size_t lastBlockSize = preferencesPtr->autoFlush ? srcSize % blockSize : blockSize; - size_t blockInfo = 4; /* default, without block CRC option */ - size_t frameEnd = 4 + (frameInfoPtr->contentChecksumFlag*4); - size_t result = (blockInfo * nbBlocks) + (blockSize * (nbBlocks-1)) + lastBlockSize + frameEnd; - - return result; + blockSizeID_t bid = (frameInfoPtr==NULL) ? LZ4F_BLOCKSIZEID_DEFAULT : frameInfoPtr->blockSizeID; + size_t blockSize = LZ4F_getBlockSize(bid); + unsigned nbBlocks = (unsigned)(srcSize / blockSize) + 1; + size_t lastBlockSize = preferencesPtr->autoFlush ? srcSize % blockSize : blockSize; + size_t blockInfo = 4; /* default, without block CRC option */ + size_t frameEnd = 4 + (frameInfoPtr->contentChecksumFlag*4); + size_t result = (blockInfo * nbBlocks) + (blockSize * (nbBlocks-1)) + lastBlockSize + frameEnd; + + return result; } @@ -456,66 +458,66 @@ typedef enum { notDone, fromTmpBuffer, fromSrcBuffer } LZ4F_lastBlockStatus; */ size_t LZ4F_compressUpdate(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_compressOptions_t* compressOptionsPtr) { - LZ4F_compressOptions_t cOptionsNull = { 0 }; - LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; - size_t blockSize = cctxPtr->maxBlockSize; - const BYTE* srcPtr = (const BYTE*)srcBuffer; - const BYTE* const srcEnd = srcPtr + srcSize; - BYTE* const dstStart = (BYTE*)dstBuffer; - BYTE* dstPtr = dstStart; - LZ4F_lastBlockStatus lastBlockCompressed = notDone; - compressFunc_t compress; - - - if (cctxPtr->cStage != 1) return (size_t)-ERROR_GENERIC; - if (dstMaxSize < LZ4F_compressBound(srcSize, &(cctxPtr->prefs))) return (size_t)-ERROR_dstMaxSize_tooSmall; - if (compressOptionsPtr == NULL) compressOptionsPtr = &cOptionsNull; - - /* select compression function */ - compress = (cctxPtr->prefs.frameInfo.blockMode == blockLinked) ? - (int(*)(void*,const char*,char*,int,int))LZ4_compress_limitedOutput_continue : - LZ4_compress_limitedOutput_withState; - - /* complete tmp buffer */ - if (cctxPtr->tmpInSize > 0) /* some data already within tmp buffer */ - { - size_t sizeToCopy = blockSize - cctxPtr->tmpInSize; - if (sizeToCopy > srcSize) - { - /* add src to tmpIn buffer */ - memcpy(cctxPtr->tmpIn + cctxPtr->tmpInSize, srcBuffer, srcSize); - srcPtr = srcEnd; - cctxPtr->tmpInSize += srcSize; - /* still needs some CRC */ - } - else - { - /* complete tmpIn block and then compress it */ - lastBlockCompressed = fromTmpBuffer; - memcpy(cctxPtr->tmpIn + cctxPtr->tmpInSize, srcBuffer, sizeToCopy); - srcPtr += sizeToCopy; - - dstPtr += LZ4F_compressBlock(dstPtr, cctxPtr->tmpIn, blockSize, compress, &(cctxPtr->lz4ctx)); - - if (cctxPtr->prefs.frameInfo.blockMode==blockLinked) cctxPtr->tmpIn += blockSize; - cctxPtr->tmpInSize = 0; - } - } - - while ((size_t)(srcEnd - srcPtr) >= blockSize) - { - /* compress full block */ + LZ4F_compressOptions_t cOptionsNull = { 0 }; + LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; + size_t blockSize = cctxPtr->maxBlockSize; + const BYTE* srcPtr = (const BYTE*)srcBuffer; + const BYTE* const srcEnd = srcPtr + srcSize; + BYTE* const dstStart = (BYTE*)dstBuffer; + BYTE* dstPtr = dstStart; + LZ4F_lastBlockStatus lastBlockCompressed = notDone; + compressFunc_t compress; + + + if (cctxPtr->cStage != 1) return (size_t)-ERROR_GENERIC; + if (dstMaxSize < LZ4F_compressBound(srcSize, &(cctxPtr->prefs))) return (size_t)-ERROR_dstMaxSize_tooSmall; + if (compressOptionsPtr == NULL) compressOptionsPtr = &cOptionsNull; + + /* select compression function */ + compress = (cctxPtr->prefs.frameInfo.blockMode == blockLinked) ? + (int(*)(void*,const char*,char*,int,int))LZ4_compress_limitedOutput_continue : + LZ4_compress_limitedOutput_withState; + + /* complete tmp buffer */ + if (cctxPtr->tmpInSize > 0) /* some data already within tmp buffer */ + { + size_t sizeToCopy = blockSize - cctxPtr->tmpInSize; + if (sizeToCopy > srcSize) + { + /* add src to tmpIn buffer */ + memcpy(cctxPtr->tmpIn + cctxPtr->tmpInSize, srcBuffer, srcSize); + srcPtr = srcEnd; + cctxPtr->tmpInSize += srcSize; + /* still needs some CRC */ + } + else + { + /* complete tmpIn block and then compress it */ + lastBlockCompressed = fromTmpBuffer; + memcpy(cctxPtr->tmpIn + cctxPtr->tmpInSize, srcBuffer, sizeToCopy); + srcPtr += sizeToCopy; + + dstPtr += LZ4F_compressBlock(dstPtr, cctxPtr->tmpIn, blockSize, compress, &(cctxPtr->lz4ctx)); + + if (cctxPtr->prefs.frameInfo.blockMode==blockLinked) cctxPtr->tmpIn += blockSize; + cctxPtr->tmpInSize = 0; + } + } + + while ((size_t)(srcEnd - srcPtr) >= blockSize) + { + /* compress full block */ lastBlockCompressed = fromSrcBuffer; dstPtr += LZ4F_compressBlock(dstPtr, srcPtr, blockSize, compress, &(cctxPtr->lz4ctx)); - srcPtr += blockSize; - } + srcPtr += blockSize; + } if ((cctxPtr->prefs.autoFlush) && (srcPtr < srcEnd)) { /* compress remaining input < blockSize */ lastBlockCompressed = fromSrcBuffer; dstPtr += LZ4F_compressBlock(dstPtr, srcPtr, srcEnd - srcPtr, compress, &(cctxPtr->lz4ctx)); - srcPtr = srcEnd; + srcPtr = srcEnd; } /* preserve dictionary if necessary */ @@ -542,7 +544,7 @@ size_t LZ4F_compressUpdate(LZ4F_compressionContext_t compressionContext, void* d } /* some input data left, necessarily < blockSize */ - if (srcPtr < srcEnd) + if (srcPtr < srcEnd) { /* fill tmp buffer */ size_t sizeToCopy = srcEnd - srcPtr; @@ -550,10 +552,10 @@ size_t LZ4F_compressUpdate(LZ4F_compressionContext_t compressionContext, void* d cctxPtr->tmpInSize = sizeToCopy; } - if (cctxPtr->prefs.frameInfo.contentChecksumFlag == contentChecksumEnabled) - XXH32_update(&(cctxPtr->xxh), srcBuffer, (unsigned)srcSize); + if (cctxPtr->prefs.frameInfo.contentChecksumFlag == contentChecksumEnabled) + XXH32_update(&(cctxPtr->xxh), srcBuffer, (unsigned)srcSize); - return dstPtr - dstStart; + return dstPtr - dstStart; } @@ -567,27 +569,28 @@ size_t LZ4F_compressUpdate(LZ4F_compressionContext_t compressionContext, void* d */ size_t LZ4F_flush(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* compressOptionsPtr) { - LZ4F_compressOptions_t cOptionsNull = { 0 }; - LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; - BYTE* const dstStart = (BYTE*)dstBuffer; - BYTE* dstPtr = dstStart; - int (*compress)(void*, const char*, char*, int, int); + LZ4F_compressOptions_t cOptionsNull = { 0 }; + LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; + BYTE* const dstStart = (BYTE*)dstBuffer; + BYTE* dstPtr = dstStart; + int (*compress)(void*, const char*, char*, int, int); - if (cctxPtr->tmpInSize == 0) return 0; /* nothing to flush */ - if (cctxPtr->cStage != 1) return (size_t)-ERROR_GENERIC; - if (dstMaxSize < (cctxPtr->tmpInSize + 16)) return (size_t)-ERROR_dstMaxSize_tooSmall; - if (compressOptionsPtr == NULL) compressOptionsPtr = &cOptionsNull; + if (cctxPtr->tmpInSize == 0) return 0; /* nothing to flush */ + if (cctxPtr->cStage != 1) return (size_t)-ERROR_GENERIC; + if (dstMaxSize < (cctxPtr->tmpInSize + 16)) return (size_t)-ERROR_dstMaxSize_tooSmall; + if (compressOptionsPtr == NULL) compressOptionsPtr = &cOptionsNull; + (void)compressOptionsPtr; /* not yet useful */ - /* select compression function */ - compress = (cctxPtr->prefs.frameInfo.blockMode == blockLinked) ? - (int(*)(void*,const char*,char*,int,int))LZ4_compress_limitedOutput_continue : - LZ4_compress_limitedOutput_withState; + /* select compression function */ + compress = (cctxPtr->prefs.frameInfo.blockMode == blockLinked) ? + (int(*)(void*,const char*,char*,int,int))LZ4_compress_limitedOutput_continue : + LZ4_compress_limitedOutput_withState; /* compress tmp buffer */ dstPtr += LZ4F_compressBlock(dstPtr, cctxPtr->tmpIn, cctxPtr->tmpInSize, compress, &(cctxPtr->lz4ctx)); if (cctxPtr->prefs.frameInfo.blockMode==blockLinked) cctxPtr->tmpIn += cctxPtr->tmpInSize; - cctxPtr->tmpInSize = 0; + cctxPtr->tmpInSize = 0; /* keep tmpIn within limits */ if ((cctxPtr->tmpIn + cctxPtr->maxBlockSize) > (cctxPtr->tmpBuff + cctxPtr->maxBufferSize)) /* necessarily blockLinked */ @@ -596,7 +599,7 @@ size_t LZ4F_flush(LZ4F_compressionContext_t compressionContext, void* dstBuffer, cctxPtr->tmpIn = cctxPtr->tmpBuff + 64 KB; } - return dstPtr - dstStart; + return dstPtr - dstStart; } @@ -611,27 +614,28 @@ size_t LZ4F_flush(LZ4F_compressionContext_t compressionContext, void* dstBuffer, */ size_t LZ4F_compressEnd(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* compressOptionsPtr) { - LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; - BYTE* const dstStart = (BYTE*)dstBuffer; - BYTE* dstPtr = dstStart; - size_t errorCode; + LZ4F_cctx_internal_t* cctxPtr = (LZ4F_cctx_internal_t*)compressionContext; + BYTE* const dstStart = (BYTE*)dstBuffer; + BYTE* dstPtr = dstStart; + size_t errorCode; - errorCode = LZ4F_flush(compressionContext, dstBuffer, dstMaxSize, compressOptionsPtr); - if (LZ4F_isError(errorCode)) return errorCode; - dstPtr += errorCode; + errorCode = LZ4F_flush(compressionContext, dstBuffer, dstMaxSize, compressOptionsPtr); + if (LZ4F_isError(errorCode)) return errorCode; + dstPtr += errorCode; - LZ4F_writeLE32(dstPtr, 0); dstPtr+=4; /* endMark */ + LZ4F_writeLE32(dstPtr, 0); + dstPtr+=4; /* endMark */ - if (cctxPtr->prefs.frameInfo.contentChecksumFlag == contentChecksumEnabled) - { - U32 xxh = XXH32_intermediateDigest(&(cctxPtr->xxh)); - LZ4F_writeLE32(dstPtr, xxh); - dstPtr+=4; /* content Checksum */ - } + if (cctxPtr->prefs.frameInfo.contentChecksumFlag == contentChecksumEnabled) + { + U32 xxh = XXH32_intermediateDigest(&(cctxPtr->xxh)); + LZ4F_writeLE32(dstPtr, xxh); + dstPtr+=4; /* content Checksum */ + } - cctxPtr->cStage = 0; /* state is now re-usable (with identical preferences) */ + cctxPtr->cStage = 0; /* state is now re-usable (with identical preferences) */ - return dstPtr - dstStart; + return dstPtr - dstStart; } @@ -748,7 +752,8 @@ typedef enum { dstage_getHeader=0, dstage_storeHeader, dstage_decodeHeader, dstage_copyDirect, dstage_getCBlock, dstage_storeCBlock, dstage_decodeCBlock, dstage_decodeCBlock_intoDst, dstage_decodeCBlock_intoTmp, dstage_flushOut, - dstage_getSuffix, dstage_storeSuffix, dstage_checkSuffix } dStage_t; + dstage_getSuffix, dstage_storeSuffix, dstage_checkSuffix + } dStage_t; /* LZ4F_getFrameInfo() @@ -785,7 +790,8 @@ LZ4F_errorCode_t LZ4F_getFrameInfo(LZ4F_decompressionContext_t decompressionCont static int LZ4F_decompress_safe (const char* source, char* dest, int compressedSize, int maxDecompressedSize, const char* dictStart, int dictSize) { - (void)dictStart; (void)dictSize; + (void)dictStart; + (void)dictSize; return LZ4_decompress_safe (source, dest, compressedSize, maxDecompressedSize); } @@ -903,7 +909,8 @@ size_t LZ4F_decompress(LZ4F_decompressionContext_t decompressionContext, if (decompressOptionsPtr==NULL) decompressOptionsPtr = &optionsNull; - *srcSizePtr = 0; *dstSizePtr = 0; + *srcSizePtr = 0; + *dstSizePtr = 0; /* expect to continue decoding src buffer where it left previously */ if (dctxPtr->srcExpect != NULL) @@ -920,314 +927,314 @@ size_t LZ4F_decompress(LZ4F_decompressionContext_t decompressionContext, { case dstage_getHeader: + { + if (srcEnd-srcPtr >= 7) { - if (srcEnd-srcPtr >= 7) - { - selectedIn = srcPtr; - srcPtr += 7; - dctxPtr->dStage = dstage_decodeHeader; - break; - } - dctxPtr->tmpInSize = 0; - dctxPtr->dStage = dstage_storeHeader; + selectedIn = srcPtr; + srcPtr += 7; + dctxPtr->dStage = dstage_decodeHeader; break; } + dctxPtr->tmpInSize = 0; + dctxPtr->dStage = dstage_storeHeader; + break; + } case dstage_storeHeader: + { + size_t sizeToCopy = 7 - dctxPtr->tmpInSize; + if (sizeToCopy > (size_t)(srcEnd - srcPtr)) sizeToCopy = srcEnd - srcPtr; + memcpy(dctxPtr->header + dctxPtr->tmpInSize, srcPtr, sizeToCopy); + dctxPtr->tmpInSize += sizeToCopy; + srcPtr += sizeToCopy; + if (dctxPtr->tmpInSize < 7) { - size_t sizeToCopy = 7 - dctxPtr->tmpInSize; - if (sizeToCopy > (size_t)(srcEnd - srcPtr)) sizeToCopy = srcEnd - srcPtr; - memcpy(dctxPtr->header + dctxPtr->tmpInSize, srcPtr, sizeToCopy); - dctxPtr->tmpInSize += sizeToCopy; - srcPtr += sizeToCopy; - if (dctxPtr->tmpInSize < 7) - { - nextSrcSizeHint = (7 - dctxPtr->tmpInSize) + 4; - doAnotherStage = 0; /* no enough src, wait to get some more */ - break; - } - selectedIn = dctxPtr->header; - dctxPtr->dStage = dstage_decodeHeader; + nextSrcSizeHint = (7 - dctxPtr->tmpInSize) + 4; + doAnotherStage = 0; /* no enough src, wait to get some more */ break; } + selectedIn = dctxPtr->header; + dctxPtr->dStage = dstage_decodeHeader; + break; + } case dstage_decodeHeader: - { - LZ4F_errorCode_t errorCode = LZ4F_decodeHeader(dctxPtr, selectedIn, 7); - if (LZ4F_isError(errorCode)) return errorCode; - dctxPtr->dStage = dstage_getCBlockSize; - break; - } + { + LZ4F_errorCode_t errorCode = LZ4F_decodeHeader(dctxPtr, selectedIn, 7); + if (LZ4F_isError(errorCode)) return errorCode; + dctxPtr->dStage = dstage_getCBlockSize; + break; + } case dstage_getCBlockSize: + { + if ((srcEnd - srcPtr) >= 4) { - if ((srcEnd - srcPtr) >= 4) - { - selectedIn = srcPtr; - srcPtr += 4; - dctxPtr->dStage = dstage_decodeCBlockSize; - break; - } - /* not enough input to read cBlockSize field */ - dctxPtr->tmpInSize = 0; - dctxPtr->dStage = dstage_storeCBlockSize; + selectedIn = srcPtr; + srcPtr += 4; + dctxPtr->dStage = dstage_decodeCBlockSize; break; } + /* not enough input to read cBlockSize field */ + dctxPtr->tmpInSize = 0; + dctxPtr->dStage = dstage_storeCBlockSize; + break; + } case dstage_storeCBlockSize: + { + size_t sizeToCopy = 4 - dctxPtr->tmpInSize; + if (sizeToCopy > (size_t)(srcEnd - srcPtr)) sizeToCopy = srcEnd - srcPtr; + memcpy(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy); + srcPtr += sizeToCopy; + dctxPtr->tmpInSize += sizeToCopy; + if (dctxPtr->tmpInSize < 4) /* not enough input to get full cBlockSize; wait for more */ { - size_t sizeToCopy = 4 - dctxPtr->tmpInSize; - if (sizeToCopy > (size_t)(srcEnd - srcPtr)) sizeToCopy = srcEnd - srcPtr; - memcpy(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy); - srcPtr += sizeToCopy; - dctxPtr->tmpInSize += sizeToCopy; - if (dctxPtr->tmpInSize < 4) /* not enough input to get full cBlockSize; wait for more */ - { - nextSrcSizeHint = 4 - dctxPtr->tmpInSize; - doAnotherStage=0; - break; - } - selectedIn = dctxPtr->tmpIn; - dctxPtr->dStage = dstage_decodeCBlockSize; + nextSrcSizeHint = 4 - dctxPtr->tmpInSize; + doAnotherStage=0; break; } + selectedIn = dctxPtr->tmpIn; + dctxPtr->dStage = dstage_decodeCBlockSize; + break; + } case dstage_decodeCBlockSize: + { + size_t nextCBlockSize = LZ4F_readLE32(selectedIn) & 0x7FFFFFFFU; + if (nextCBlockSize==0) /* frameEnd signal, no more CBlock */ { - size_t nextCBlockSize = LZ4F_readLE32(selectedIn) & 0x7FFFFFFFU; - if (nextCBlockSize==0) /* frameEnd signal, no more CBlock */ - { - dctxPtr->dStage = dstage_getSuffix; - break; - } - if (nextCBlockSize > dctxPtr->maxBlockSize) return (size_t)-ERROR_GENERIC; /* invalid cBlockSize */ - dctxPtr->tmpInTarget = nextCBlockSize; - if (LZ4F_readLE32(selectedIn) & LZ4F_BLOCKUNCOMPRESSED_FLAG) - { - dctxPtr->dStage = dstage_copyDirect; - break; - } - dctxPtr->dStage = dstage_getCBlock; - if (dstPtr==dstEnd) - { - nextSrcSizeHint = nextCBlockSize + 4; - doAnotherStage = 0; - } + dctxPtr->dStage = dstage_getSuffix; + break; + } + if (nextCBlockSize > dctxPtr->maxBlockSize) return (size_t)-ERROR_GENERIC; /* invalid cBlockSize */ + dctxPtr->tmpInTarget = nextCBlockSize; + if (LZ4F_readLE32(selectedIn) & LZ4F_BLOCKUNCOMPRESSED_FLAG) + { + dctxPtr->dStage = dstage_copyDirect; break; } + dctxPtr->dStage = dstage_getCBlock; + if (dstPtr==dstEnd) + { + nextSrcSizeHint = nextCBlockSize + 4; + doAnotherStage = 0; + } + break; + } case dstage_copyDirect: /* uncompressed block */ + { + size_t sizeToCopy = dctxPtr->tmpInTarget; + if ((size_t)(srcEnd-srcPtr) < sizeToCopy) sizeToCopy = srcEnd - srcPtr; /* not enough input to read full block */ + if ((size_t)(dstEnd-dstPtr) < sizeToCopy) sizeToCopy = dstEnd - dstPtr; + memcpy(dstPtr, srcPtr, sizeToCopy); + if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), srcPtr, (U32)sizeToCopy); + + /* dictionary management */ + if (dctxPtr->frameInfo.blockMode==blockLinked) + LZ4F_updateDict(dctxPtr, dstPtr, sizeToCopy, dstStart, 0); + + srcPtr += sizeToCopy; + dstPtr += sizeToCopy; + if (sizeToCopy == dctxPtr->tmpInTarget) /* all copied */ { - size_t sizeToCopy = dctxPtr->tmpInTarget; - if ((size_t)(srcEnd-srcPtr) < sizeToCopy) sizeToCopy = srcEnd - srcPtr; /* not enough input to read full block */ - if ((size_t)(dstEnd-dstPtr) < sizeToCopy) sizeToCopy = dstEnd - dstPtr; - memcpy(dstPtr, srcPtr, sizeToCopy); - if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), srcPtr, (U32)sizeToCopy); - - /* dictionary management */ - if (dctxPtr->frameInfo.blockMode==blockLinked) - LZ4F_updateDict(dctxPtr, dstPtr, sizeToCopy, dstStart, 0); - - srcPtr += sizeToCopy; - dstPtr += sizeToCopy; - if (sizeToCopy == dctxPtr->tmpInTarget) /* all copied */ - { - dctxPtr->dStage = dstage_getCBlockSize; - break; - } - dctxPtr->tmpInTarget -= sizeToCopy; /* still need to copy more */ - nextSrcSizeHint = dctxPtr->tmpInTarget + 4; - doAnotherStage = 0; + dctxPtr->dStage = dstage_getCBlockSize; break; } + dctxPtr->tmpInTarget -= sizeToCopy; /* still need to copy more */ + nextSrcSizeHint = dctxPtr->tmpInTarget + 4; + doAnotherStage = 0; + break; + } case dstage_getCBlock: /* entry from dstage_decodeCBlockSize */ + { + if ((size_t)(srcEnd-srcPtr) < dctxPtr->tmpInTarget) { - if ((size_t)(srcEnd-srcPtr) < dctxPtr->tmpInTarget) - { - dctxPtr->tmpInSize = 0; - dctxPtr->dStage = dstage_storeCBlock; - break; - } - selectedIn = srcPtr; - srcPtr += dctxPtr->tmpInTarget; - dctxPtr->dStage = dstage_decodeCBlock; + dctxPtr->tmpInSize = 0; + dctxPtr->dStage = dstage_storeCBlock; break; } + selectedIn = srcPtr; + srcPtr += dctxPtr->tmpInTarget; + dctxPtr->dStage = dstage_decodeCBlock; + break; + } case dstage_storeCBlock: + { + size_t sizeToCopy = dctxPtr->tmpInTarget - dctxPtr->tmpInSize; + if (sizeToCopy > (size_t)(srcEnd-srcPtr)) sizeToCopy = srcEnd-srcPtr; + memcpy(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy); + dctxPtr->tmpInSize += sizeToCopy; + srcPtr += sizeToCopy; + if (dctxPtr->tmpInSize < dctxPtr->tmpInTarget) /* need more input */ { - size_t sizeToCopy = dctxPtr->tmpInTarget - dctxPtr->tmpInSize; - if (sizeToCopy > (size_t)(srcEnd-srcPtr)) sizeToCopy = srcEnd-srcPtr; - memcpy(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy); - dctxPtr->tmpInSize += sizeToCopy; - srcPtr += sizeToCopy; - if (dctxPtr->tmpInSize < dctxPtr->tmpInTarget) /* need more input */ - { - nextSrcSizeHint = (dctxPtr->tmpInTarget - dctxPtr->tmpInSize) + 4; - doAnotherStage=0; - break; - } - selectedIn = dctxPtr->tmpIn; - dctxPtr->dStage = dstage_decodeCBlock; + nextSrcSizeHint = (dctxPtr->tmpInTarget - dctxPtr->tmpInSize) + 4; + doAnotherStage=0; break; } + selectedIn = dctxPtr->tmpIn; + dctxPtr->dStage = dstage_decodeCBlock; + break; + } case dstage_decodeCBlock: - { - if ((size_t)(dstEnd-dstPtr) < dctxPtr->maxBlockSize) /* not enough place into dst : decode into tmpOut */ - dctxPtr->dStage = dstage_decodeCBlock_intoTmp; - else - dctxPtr->dStage = dstage_decodeCBlock_intoDst; - break; - } + { + if ((size_t)(dstEnd-dstPtr) < dctxPtr->maxBlockSize) /* not enough place into dst : decode into tmpOut */ + dctxPtr->dStage = dstage_decodeCBlock_intoTmp; + else + dctxPtr->dStage = dstage_decodeCBlock_intoDst; + break; + } case dstage_decodeCBlock_intoDst: - { - int (*decoder)(const char*, char*, int, int, const char*, int); - int decodedSize; + { + int (*decoder)(const char*, char*, int, int, const char*, int); + int decodedSize; - if (dctxPtr->frameInfo.blockMode == blockLinked) - decoder = LZ4_decompress_safe_usingDict; - else - decoder = LZ4F_decompress_safe; + if (dctxPtr->frameInfo.blockMode == blockLinked) + decoder = LZ4_decompress_safe_usingDict; + else + decoder = LZ4F_decompress_safe; - decodedSize = decoder((const char*)selectedIn, (char*)dstPtr, (int)dctxPtr->tmpInTarget, (int)dctxPtr->maxBlockSize, (const char*)dctxPtr->dict, (int)dctxPtr->dictSize); - if (decodedSize < 0) return (size_t)-ERROR_GENERIC; /* decompression failed */ - if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), dstPtr, decodedSize); + decodedSize = decoder((const char*)selectedIn, (char*)dstPtr, (int)dctxPtr->tmpInTarget, (int)dctxPtr->maxBlockSize, (const char*)dctxPtr->dict, (int)dctxPtr->dictSize); + if (decodedSize < 0) return (size_t)-ERROR_GENERIC; /* decompression failed */ + if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), dstPtr, decodedSize); - /* dictionary management */ - if (dctxPtr->frameInfo.blockMode==blockLinked) - LZ4F_updateDict(dctxPtr, dstPtr, decodedSize, dstStart, 0); + /* dictionary management */ + if (dctxPtr->frameInfo.blockMode==blockLinked) + LZ4F_updateDict(dctxPtr, dstPtr, decodedSize, dstStart, 0); - dstPtr += decodedSize; - dctxPtr->dStage = dstage_getCBlockSize; - break; - } + dstPtr += decodedSize; + dctxPtr->dStage = dstage_getCBlockSize; + break; + } case dstage_decodeCBlock_intoTmp: - { - /* not enough place into dst : decode into tmpOut */ - int (*decoder)(const char*, char*, int, int, const char*, int); - int decodedSize; + { + /* not enough place into dst : decode into tmpOut */ + int (*decoder)(const char*, char*, int, int, const char*, int); + int decodedSize; - if (dctxPtr->frameInfo.blockMode == blockLinked) - decoder = LZ4_decompress_safe_usingDict; - else - decoder = LZ4F_decompress_safe; + if (dctxPtr->frameInfo.blockMode == blockLinked) + decoder = LZ4_decompress_safe_usingDict; + else + decoder = LZ4F_decompress_safe; - /* ensure enough place for tmpOut */ - if (dctxPtr->frameInfo.blockMode == blockLinked) + /* ensure enough place for tmpOut */ + if (dctxPtr->frameInfo.blockMode == blockLinked) + { + if (dctxPtr->dict == dctxPtr->tmpOutBuffer) { - if (dctxPtr->dict == dctxPtr->tmpOutBuffer) - { - if (dctxPtr->dictSize > 128 KB) - { - memcpy(dctxPtr->dict, dctxPtr->dict + dctxPtr->dictSize - 64 KB, 64 KB); - dctxPtr->dictSize = 64 KB; - } - dctxPtr->tmpOut = dctxPtr->dict + dctxPtr->dictSize; - } - else /* dict not within tmp */ + if (dctxPtr->dictSize > 128 KB) { - size_t reservedDictSpace = dctxPtr->dictSize; - if (reservedDictSpace > 64 KB) reservedDictSpace = 64 KB; - dctxPtr->tmpOut = dctxPtr->tmpOutBuffer + reservedDictSpace; + memcpy(dctxPtr->dict, dctxPtr->dict + dctxPtr->dictSize - 64 KB, 64 KB); + dctxPtr->dictSize = 64 KB; } + dctxPtr->tmpOut = dctxPtr->dict + dctxPtr->dictSize; + } + else /* dict not within tmp */ + { + size_t reservedDictSpace = dctxPtr->dictSize; + if (reservedDictSpace > 64 KB) reservedDictSpace = 64 KB; + dctxPtr->tmpOut = dctxPtr->tmpOutBuffer + reservedDictSpace; } - - /* Decode */ - decodedSize = decoder((const char*)selectedIn, (char*)dctxPtr->tmpOut, (int)dctxPtr->tmpInTarget, (int)dctxPtr->maxBlockSize, (const char*)dctxPtr->dict, (int)dctxPtr->dictSize); - if (decodedSize < 0) return (size_t)-ERROR_decompressionFailed; /* decompression failed */ - if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), dctxPtr->tmpOut, decodedSize); - dctxPtr->tmpOutSize = decodedSize; - dctxPtr->tmpOutStart = 0; - dctxPtr->dStage = dstage_flushOut; - break; } + /* Decode */ + decodedSize = decoder((const char*)selectedIn, (char*)dctxPtr->tmpOut, (int)dctxPtr->tmpInTarget, (int)dctxPtr->maxBlockSize, (const char*)dctxPtr->dict, (int)dctxPtr->dictSize); + if (decodedSize < 0) return (size_t)-ERROR_decompressionFailed; /* decompression failed */ + if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), dctxPtr->tmpOut, decodedSize); + dctxPtr->tmpOutSize = decodedSize; + dctxPtr->tmpOutStart = 0; + dctxPtr->dStage = dstage_flushOut; + break; + } + case dstage_flushOut: /* flush decoded data from tmpOut to dstBuffer */ - { - size_t sizeToCopy = dctxPtr->tmpOutSize - dctxPtr->tmpOutStart; - if (sizeToCopy > (size_t)(dstEnd-dstPtr)) sizeToCopy = dstEnd-dstPtr; - memcpy(dstPtr, dctxPtr->tmpOut + dctxPtr->tmpOutStart, sizeToCopy); + { + size_t sizeToCopy = dctxPtr->tmpOutSize - dctxPtr->tmpOutStart; + if (sizeToCopy > (size_t)(dstEnd-dstPtr)) sizeToCopy = dstEnd-dstPtr; + memcpy(dstPtr, dctxPtr->tmpOut + dctxPtr->tmpOutStart, sizeToCopy); - /* dictionary management */ - if (dctxPtr->frameInfo.blockMode==blockLinked) - LZ4F_updateDict(dctxPtr, dstPtr, sizeToCopy, dstStart, 1); + /* dictionary management */ + if (dctxPtr->frameInfo.blockMode==blockLinked) + LZ4F_updateDict(dctxPtr, dstPtr, sizeToCopy, dstStart, 1); - dctxPtr->tmpOutStart += sizeToCopy; - dstPtr += sizeToCopy; + dctxPtr->tmpOutStart += sizeToCopy; + dstPtr += sizeToCopy; - /* end of flush ? */ - if (dctxPtr->tmpOutStart == dctxPtr->tmpOutSize) - { - dctxPtr->dStage = dstage_getCBlockSize; - break; - } - nextSrcSizeHint = 4; - doAnotherStage = 0; /* still some data to flush */ + /* end of flush ? */ + if (dctxPtr->tmpOutStart == dctxPtr->tmpOutSize) + { + dctxPtr->dStage = dstage_getCBlockSize; break; } + nextSrcSizeHint = 4; + doAnotherStage = 0; /* still some data to flush */ + break; + } - case dstage_getSuffix: + case dstage_getSuffix: + { + size_t suffixSize = dctxPtr->frameInfo.contentChecksumFlag * 4; + if (suffixSize == 0) /* frame completed */ { - size_t suffixSize = dctxPtr->frameInfo.contentChecksumFlag * 4; - if (suffixSize == 0) /* frame completed */ - { - nextSrcSizeHint = 0; - dctxPtr->dStage = dstage_getHeader; - doAnotherStage = 0; - break; - } - if ((srcEnd - srcPtr) >= 4) /* CRC present */ - { - selectedIn = srcPtr; - srcPtr += 4; - dctxPtr->dStage = dstage_checkSuffix; - break; - } - dctxPtr->tmpInSize = 0; - dctxPtr->dStage = dstage_storeSuffix; + nextSrcSizeHint = 0; + dctxPtr->dStage = dstage_getHeader; + doAnotherStage = 0; break; } - - case dstage_storeSuffix: + if ((srcEnd - srcPtr) >= 4) /* CRC present */ { - size_t sizeToCopy = 4 - dctxPtr->tmpInSize; - if (sizeToCopy > (size_t)(srcEnd - srcPtr)) sizeToCopy = srcEnd - srcPtr; - memcpy(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy); - srcPtr += sizeToCopy; - dctxPtr->tmpInSize += sizeToCopy; - if (dctxPtr->tmpInSize < 4) /* not enough input to read complete suffix */ - { - nextSrcSizeHint = 4 - dctxPtr->tmpInSize; - doAnotherStage=0; - break; - } - selectedIn = dctxPtr->tmpIn; + selectedIn = srcPtr; + srcPtr += 4; dctxPtr->dStage = dstage_checkSuffix; break; } + dctxPtr->tmpInSize = 0; + dctxPtr->dStage = dstage_storeSuffix; + break; + } - case dstage_checkSuffix: + case dstage_storeSuffix: + { + size_t sizeToCopy = 4 - dctxPtr->tmpInSize; + if (sizeToCopy > (size_t)(srcEnd - srcPtr)) sizeToCopy = srcEnd - srcPtr; + memcpy(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy); + srcPtr += sizeToCopy; + dctxPtr->tmpInSize += sizeToCopy; + if (dctxPtr->tmpInSize < 4) /* not enough input to read complete suffix */ { - U32 readCRC = LZ4F_readLE32(selectedIn); - U32 resultCRC = XXH32_intermediateDigest(&(dctxPtr->xxh)); - if (readCRC != resultCRC) return (size_t)-ERROR_checksum_invalid; - nextSrcSizeHint = 0; - dctxPtr->dStage = dstage_getHeader; - doAnotherStage = 0; + nextSrcSizeHint = 4 - dctxPtr->tmpInSize; + doAnotherStage=0; break; } + selectedIn = dctxPtr->tmpIn; + dctxPtr->dStage = dstage_checkSuffix; + break; + } + + case dstage_checkSuffix: + { + U32 readCRC = LZ4F_readLE32(selectedIn); + U32 resultCRC = XXH32_intermediateDigest(&(dctxPtr->xxh)); + if (readCRC != resultCRC) return (size_t)-ERROR_checksum_invalid; + nextSrcSizeHint = 0; + dctxPtr->dStage = dstage_getHeader; + doAnotherStage = 0; + break; + } } } /* preserve dictionary within tmp if necessary */ if ( (dctxPtr->frameInfo.blockMode==blockLinked) - &&(dctxPtr->dict != dctxPtr->tmpOutBuffer) - &&(!decompressOptionsPtr->stableDst) - &&((unsigned)(dctxPtr->dStage-1) < (unsigned)(dstage_getSuffix-1)) + &&(dctxPtr->dict != dctxPtr->tmpOutBuffer) + &&(!decompressOptionsPtr->stableDst) + &&((unsigned)(dctxPtr->dStage-1) < (unsigned)(dstage_getSuffix-1)) ) { if (dctxPtr->dStage == dstage_flushOut) diff --git a/programs/frametest.c b/programs/frametest.c index 19e8e82..3d19ef4 100644 --- a/programs/frametest.c +++ b/programs/frametest.c @@ -53,17 +53,17 @@ **************************************/ #if defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */ # include - typedef uint8_t BYTE; - typedef uint16_t U16; - typedef uint32_t U32; - typedef int32_t S32; - typedef uint64_t U64; +typedef uint8_t BYTE; +typedef uint16_t U16; +typedef uint32_t U32; +typedef int32_t S32; +typedef uint64_t U64; #else - typedef unsigned char BYTE; - typedef unsigned short U16; - typedef unsigned int U32; - typedef signed int S32; - typedef unsigned long long U64; +typedef unsigned char BYTE; +typedef unsigned short U16; +typedef unsigned int U32; +typedef signed int S32; +typedef unsigned long long U64; #endif @@ -113,21 +113,21 @@ static U32 pause = 0; *********************************************************/ static U32 FUZ_GetMilliStart(void) { - struct timeb tb; - U32 nCount; - ftime( &tb ); - nCount = (U32) (((tb.time & 0xFFFFF) * 1000) + tb.millitm); - return nCount; + struct timeb tb; + U32 nCount; + ftime( &tb ); + nCount = (U32) (((tb.time & 0xFFFFF) * 1000) + tb.millitm); + return nCount; } static U32 FUZ_GetMilliSpan(U32 nTimeStart) { - U32 nCurrent = FUZ_GetMilliStart(); - U32 nSpan = nCurrent - nTimeStart; - if (nTimeStart > nCurrent) - nSpan += 0x100000 * 1000; - return nSpan; + U32 nCurrent = FUZ_GetMilliStart(); + U32 nSpan = nCurrent - nTimeStart; + if (nTimeStart > nCurrent) + nSpan += 0x100000 * 1000; + return nSpan; } @@ -187,39 +187,43 @@ static unsigned FUZ_highbit(U32 v32) { unsigned nbBits = 0; if (v32==0) return 0; - while (v32) { v32 >>= 1; nbBits ++; } + while (v32) + { + v32 >>= 1; + nbBits ++; + } return nbBits; } int basicTests(U32 seed, double compressibility) { - int testResult = 0; - void* CNBuffer; - void* compressedBuffer; - void* decodedBuffer; - U32 randState = seed; - size_t cSize, testSize; - LZ4F_preferences_t prefs = { 0 }; - LZ4F_decompressionContext_t dCtx; - U64 crcOrig; - - // Create compressible test buffer - CNBuffer = malloc(COMPRESSIBLE_NOISE_LENGTH); - compressedBuffer = malloc(LZ4F_compressFrameBound(COMPRESSIBLE_NOISE_LENGTH, NULL)); - decodedBuffer = malloc(COMPRESSIBLE_NOISE_LENGTH); - FUZ_fillCompressibleNoiseBuffer(CNBuffer, COMPRESSIBLE_NOISE_LENGTH, compressibility, &randState); - crcOrig = XXH64(CNBuffer, COMPRESSIBLE_NOISE_LENGTH, 1); - - // Trivial tests : one-step frame - testSize = COMPRESSIBLE_NOISE_LENGTH; - DISPLAYLEVEL(3, "Using NULL preferences : \n"); - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, NULL), CNBuffer, testSize, NULL); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "Decompression test : \n"); - { + int testResult = 0; + void* CNBuffer; + void* compressedBuffer; + void* decodedBuffer; + U32 randState = seed; + size_t cSize, testSize; + LZ4F_preferences_t prefs = { 0 }; + LZ4F_decompressionContext_t dCtx; + U64 crcOrig; + + // Create compressible test buffer + CNBuffer = malloc(COMPRESSIBLE_NOISE_LENGTH); + compressedBuffer = malloc(LZ4F_compressFrameBound(COMPRESSIBLE_NOISE_LENGTH, NULL)); + decodedBuffer = malloc(COMPRESSIBLE_NOISE_LENGTH); + FUZ_fillCompressibleNoiseBuffer(CNBuffer, COMPRESSIBLE_NOISE_LENGTH, compressibility, &randState); + crcOrig = XXH64(CNBuffer, COMPRESSIBLE_NOISE_LENGTH, 1); + + // Trivial tests : one-step frame + testSize = COMPRESSIBLE_NOISE_LENGTH; + DISPLAYLEVEL(3, "Using NULL preferences : \n"); + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, NULL), CNBuffer, testSize, NULL); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "Decompression test : \n"); + { size_t decodedBufferSize = COMPRESSIBLE_NOISE_LENGTH; size_t compressedBufferSize = cSize; BYTE* op = (BYTE*)decodedBuffer; @@ -254,30 +258,30 @@ int basicTests(U32 seed, double compressibility) errorCode = LZ4F_freeDecompressionContext(dCtx); if (LZ4F_isError(errorCode)) goto _output_error; - } - - DISPLAYLEVEL(3, "Using 64 KB block : \n"); - prefs.frameInfo.blockSizeID = max64KB; - prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "without checksum : \n"); - prefs.frameInfo.contentChecksumFlag = noContentChecksum; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "Using 256 KB block : \n"); - prefs.frameInfo.blockSizeID = max256KB; - prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "Decompression test : \n"); - { + } + + DISPLAYLEVEL(3, "Using 64 KB block : \n"); + prefs.frameInfo.blockSizeID = max64KB; + prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "without checksum : \n"); + prefs.frameInfo.contentChecksumFlag = noContentChecksum; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "Using 256 KB block : \n"); + prefs.frameInfo.blockSizeID = max256KB; + prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "Decompression test : \n"); + { size_t decodedBufferSize = COMPRESSIBLE_NOISE_LENGTH; unsigned maxBits = FUZ_highbit((U32)decodedBufferSize); BYTE* op = (BYTE*)decodedBuffer; @@ -308,51 +312,51 @@ int basicTests(U32 seed, double compressibility) errorCode = LZ4F_freeDecompressionContext(dCtx); if (LZ4F_isError(errorCode)) goto _output_error; - } - - DISPLAYLEVEL(3, "without checksum : \n"); - prefs.frameInfo.contentChecksumFlag = noContentChecksum; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "Using 1 MB block : \n"); - prefs.frameInfo.blockSizeID = max1MB; - prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "without checksum : \n"); - prefs.frameInfo.contentChecksumFlag = noContentChecksum; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "Using 4 MB block : \n"); - prefs.frameInfo.blockSizeID = max4MB; - prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAYLEVEL(3, "without checksum : \n"); - prefs.frameInfo.contentChecksumFlag = noContentChecksum; - cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); - if (LZ4F_isError(cSize)) goto _output_error; - DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); - - DISPLAY("Basic tests completed \n"); + } + + DISPLAYLEVEL(3, "without checksum : \n"); + prefs.frameInfo.contentChecksumFlag = noContentChecksum; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "Using 1 MB block : \n"); + prefs.frameInfo.blockSizeID = max1MB; + prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "without checksum : \n"); + prefs.frameInfo.contentChecksumFlag = noContentChecksum; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "Using 4 MB block : \n"); + prefs.frameInfo.blockSizeID = max4MB; + prefs.frameInfo.contentChecksumFlag = contentChecksumEnabled; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAYLEVEL(3, "without checksum : \n"); + prefs.frameInfo.contentChecksumFlag = noContentChecksum; + cSize = LZ4F_compressFrame(compressedBuffer, LZ4F_compressFrameBound(testSize, &prefs), CNBuffer, testSize, &prefs); + if (LZ4F_isError(cSize)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + + DISPLAY("Basic tests completed \n"); _end: - free(CNBuffer); - free(compressedBuffer); - free(decodedBuffer); - return testResult; + free(CNBuffer); + free(compressedBuffer); + free(decodedBuffer); + return testResult; _output_error: - testResult = 1; - DISPLAY("Error detected ! \n"); - goto _end; + testResult = 1; + DISPLAY("Error detected ! \n"); + goto _end; } @@ -361,44 +365,48 @@ static void locateBuffDiff(const void* buff1, const void* buff2, size_t size, un int p=0; BYTE* b1=(BYTE*)buff1; BYTE* b2=(BYTE*)buff2; - if (nonContiguous) { DISPLAY("Non-contiguous output test (%i bytes)\n", (int)size); return; } + if (nonContiguous) + { + DISPLAY("Non-contiguous output test (%i bytes)\n", (int)size); + return; + } while (b1[p]==b2[p]) p++; DISPLAY("Error at pos %i/%i : %02X != %02X \n", p, (int)size, b1[p], b2[p]); - } +} static const U32 srcDataLength = 9 MB; /* needs to be > 2x4MB to test large blocks */ int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressibility) { - unsigned testResult = 0; - unsigned testNb = 0; - void* srcBuffer = NULL; - void* compressedBuffer = NULL; - void* decodedBuffer = NULL; - U32 coreRand = seed; - LZ4F_decompressionContext_t dCtx = NULL; - LZ4F_compressionContext_t cCtx = NULL; + unsigned testResult = 0; + unsigned testNb = 0; + void* srcBuffer = NULL; + void* compressedBuffer = NULL; + void* decodedBuffer = NULL; + U32 coreRand = seed; + LZ4F_decompressionContext_t dCtx = NULL; + LZ4F_compressionContext_t cCtx = NULL; size_t result; XXH64_stateSpace_t xxh64; # define CHECK(cond, ...) if (cond) { DISPLAY("Error => "); DISPLAY(__VA_ARGS__); \ - DISPLAY(" (seed %u, test nb %i) \n", seed, testNb); goto _output_error; } + DISPLAY(" (seed %u, test nb %u) \n", seed, testNb); goto _output_error; } - // Create buffers - result = LZ4F_createDecompressionContext(&dCtx, LZ4F_VERSION); + // Create buffers + result = LZ4F_createDecompressionContext(&dCtx, LZ4F_VERSION); CHECK(LZ4F_isError(result), "Allocation failed (error %i)", (int)result); - result = LZ4F_createCompressionContext(&cCtx, LZ4F_VERSION); + result = LZ4F_createCompressionContext(&cCtx, LZ4F_VERSION); CHECK(LZ4F_isError(result), "Allocation failed (error %i)", (int)result); - srcBuffer = malloc(srcDataLength); + srcBuffer = malloc(srcDataLength); CHECK(srcBuffer==NULL, "srcBuffer Allocation failed"); - compressedBuffer = malloc(LZ4F_compressFrameBound(srcDataLength, NULL)); + compressedBuffer = malloc(LZ4F_compressFrameBound(srcDataLength, NULL)); CHECK(compressedBuffer==NULL, "compressedBuffer Allocation failed"); - decodedBuffer = malloc(srcDataLength); + decodedBuffer = malloc(srcDataLength); CHECK(decodedBuffer==NULL, "decodedBuffer Allocation failed"); - FUZ_fillCompressibleNoiseBuffer(srcBuffer, srcDataLength, compressibility, &coreRand); + FUZ_fillCompressibleNoiseBuffer(srcBuffer, srcDataLength, compressibility, &coreRand); // jump to requested testNb - for (testNb =0; testNb < startTest; testNb++) (void)FUZ_rand(&coreRand); // sync randomizer + for (testNb =0; testNb < startTest; testNb++) (void)FUZ_rand(&coreRand); // sync randomizer // main fuzzer loop for ( ; testNb < nbTests; testNb++) @@ -423,7 +431,7 @@ int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressi prefs.frameInfo.contentChecksumFlag = CCflag; prefs.autoFlush = autoflush; - DISPLAYUPDATE(2, "\r%5i ", testNb); + DISPLAYUPDATE(2, "\r%5u ", testNb); crcOrig = XXH64((BYTE*)srcBuffer+srcStart, (U32)srcSize, 1); if ((FUZ_rand(&randState)&0xF) == 2) @@ -450,7 +458,7 @@ int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressi size_t oSize = oend-op; unsigned forceFlush = ((FUZ_rand(&randState) & 3) == 1); if (iSize > (size_t)(iend-ip)) iSize = iend-ip; - cOptions.stableSrc = ((FUZ_rand(&randState) && 3) == 1); + cOptions.stableSrc = ((FUZ_rand(&randState) & 3) == 1); result = LZ4F_compressUpdate(cCtx, op, oSize, ip, iSize, &cOptions); CHECK(LZ4F_isError(result), "Compression failed (error %i)", (int)result); @@ -508,25 +516,25 @@ int fuzzerTests(U32 seed, unsigned nbTests, unsigned startTest, double compressi } } - DISPLAYLEVEL(2, "\rAll tests completed \n"); + DISPLAYLEVEL(2, "\rAll tests completed \n"); _end: LZ4F_freeDecompressionContext(dCtx); LZ4F_freeCompressionContext(cCtx); - free(srcBuffer); - free(compressedBuffer); - free(decodedBuffer); + free(srcBuffer); + free(compressedBuffer); + free(decodedBuffer); - if (pause) + if (pause) { DISPLAY("press enter to finish \n"); getchar(); } - return testResult; + return testResult; _output_error: - testResult = 1; - goto _end; + testResult = 1; + goto _end; } @@ -536,7 +544,7 @@ int FUZ_usage(void) DISPLAY( " %s [args]\n", programName); DISPLAY( "\n"); DISPLAY( "Arguments :\n"); - DISPLAY( " -i# : Nb of tests (default:%i) \n", nbTestsDefault); + DISPLAY( " -i# : Nb of tests (default:%u) \n", nbTestsDefault); DISPLAY( " -s# : Select seed (default:prompt user)\n"); DISPLAY( " -t# : Select starting test number (default:0)\n"); DISPLAY( " -p# : Select compressibility in %% (default:%i%%)\n", FUZ_COMPRESSIBILITY_DEFAULT); @@ -567,7 +575,13 @@ int main(int argc, char** argv) // Decode command (note : aggregated commands are allowed) if (argument[0]=='-') { - if (!strcmp(argument, "--no-prompt")) { no_prompt=1; seedset=1; displayLevel=1; continue; } + if (!strcmp(argument, "--no-prompt")) + { + no_prompt=1; + seedset=1; + displayLevel=1; + continue; + } argument++; while (*argument!=0) @@ -596,7 +610,8 @@ int main(int argc, char** argv) break; case 's': argument++; - seed=0; seedset=1; + seed=0; + seedset=1; while ((*argument>='0') && (*argument<='9')) { seed *= 10; @@ -630,7 +645,8 @@ int main(int argc, char** argv) argument++; pause = 1; break; - default: ; + default: + ; return FUZ_usage(); } } diff --git a/programs/lz4cli.c b/programs/lz4cli.c index 70f0760..2d612e7 100644 --- a/programs/lz4cli.c +++ b/programs/lz4cli.c @@ -48,6 +48,10 @@ # pragma warning(disable : 4127) // disable: C4127: conditional expression is constant #endif +#ifdef __clang__ +# pragma clang diagnostic ignored "-Wunused-const-variable" // const variable one is really used ! +#endif + #define _FILE_OFFSET_BITS 64 // Large file support on 32-bits unix #define _POSIX_SOURCE 1 // for fileno() within on unix @@ -91,7 +95,7 @@ #if defined(_MSC_VER) // Visual Studio # define swap32 _byteswap_ulong -#elif GCC_VERSION >= 403 +#elif (GCC_VERSION >= 403) || defined(__clang__) # define swap32 __builtin_bswap32 #else static inline unsigned int swap32(unsigned int x) -- cgit v0.12