support custom block sizes
This commit is contained in:
parent
cb917827f9
commit
64ad395d27
@ -134,7 +134,8 @@ static int usage_advanced(const char* exeName)
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DISPLAY( " -r : operate recursively on directories (sets also -m) \n");
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DISPLAY( " -r : operate recursively on directories (sets also -m) \n");
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#endif
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#endif
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DISPLAY( " -l : compress using Legacy format (Linux kernel compression)\n");
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DISPLAY( " -l : compress using Legacy format (Linux kernel compression)\n");
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DISPLAY( " -B# : Block size [4-7] (default : 7) \n");
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DISPLAY( " -B# : cut file into independent blocks of size # bytes [32+] \n");
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DISPLAY( " or predefined block size [4-7] (default: 7) \n");
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DISPLAY( " -BD : Block dependency (improve compression ratio) \n");
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DISPLAY( " -BD : Block dependency (improve compression ratio) \n");
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DISPLAY( " -BX : enable block checksum (default:disabled) \n");
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DISPLAY( " -BX : enable block checksum (default:disabled) \n");
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DISPLAY( "--no-frame-crc : disable stream checksum (default:enabled) \n");
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DISPLAY( "--no-frame-crc : disable stream checksum (default:enabled) \n");
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@ -146,8 +147,6 @@ static int usage_advanced(const char* exeName)
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DISPLAY( " -b# : benchmark file(s), using # compression level (default : 1) \n");
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DISPLAY( " -b# : benchmark file(s), using # compression level (default : 1) \n");
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DISPLAY( " -e# : test all compression levels from -bX to # (default : 1)\n");
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DISPLAY( " -e# : test all compression levels from -bX to # (default : 1)\n");
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DISPLAY( " -i# : minimum evaluation time in seconds (default : 3s) \n");
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DISPLAY( " -i# : minimum evaluation time in seconds (default : 3s) \n");
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DISPLAY( " -B# : cut file into independent blocks of size # bytes [32+] \n");
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DISPLAY( " or predefined block size [4-7] (default: 7) \n");
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if (g_lz4c_legacy_commands) {
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if (g_lz4c_legacy_commands) {
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DISPLAY( "Legacy arguments : \n");
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DISPLAY( "Legacy arguments : \n");
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DISPLAY( " -c0 : fast compression \n");
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DISPLAY( " -c0 : fast compression \n");
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@ -497,11 +496,12 @@ int main(int argc, const char** argv)
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DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
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DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
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} else {
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} else {
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if (B < 32) badusage(exeName);
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if (B < 32) badusage(exeName);
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BMK_setBlockSize(B);
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blockSize = LZ4IO_setBlockSize(B);
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if (B >= 1024) {
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BMK_setBlockSize(blockSize);
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DISPLAYLEVEL(2, "bench: using blocks of size %u KB \n", (U32)(B>>10));
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if (blockSize >= 1024) {
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DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
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} else {
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} else {
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DISPLAYLEVEL(2, "bench: using blocks of size %u bytes \n", (U32)(B));
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DISPLAYLEVEL(2, "using blocks of size %u bytes \n", (U32)(blockSize));
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}
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}
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}
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}
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break;
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break;
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@ -110,6 +110,7 @@ static clock_t g_time = 0;
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static int g_overwrite = 1;
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static int g_overwrite = 1;
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static int g_testMode = 0;
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static int g_testMode = 0;
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static int g_blockSizeId = LZ4IO_BLOCKSIZEID_DEFAULT;
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static int g_blockSizeId = LZ4IO_BLOCKSIZEID_DEFAULT;
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static int g_blockSize = 0;
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static int g_blockChecksum = 0;
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static int g_blockChecksum = 0;
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static int g_streamChecksum = 1;
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static int g_streamChecksum = 1;
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static int g_blockIndependence = 1;
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static int g_blockIndependence = 1;
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@ -178,7 +179,25 @@ size_t LZ4IO_setBlockSizeID(unsigned bsid)
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static const unsigned maxBlockSizeID = 7;
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static const unsigned maxBlockSizeID = 7;
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if ((bsid < minBlockSizeID) || (bsid > maxBlockSizeID)) return 0;
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if ((bsid < minBlockSizeID) || (bsid > maxBlockSizeID)) return 0;
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g_blockSizeId = bsid;
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g_blockSizeId = bsid;
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return blockSizeTable[g_blockSizeId-minBlockSizeID];
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g_blockSize = blockSizeTable[g_blockSizeId-minBlockSizeID];
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return g_blockSize;
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}
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size_t LZ4IO_setBlockSize(size_t blockSize)
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{
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static const size_t minBlockSize = 32;
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static const size_t maxBlockSize = 4 MB;
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unsigned bsid = 0;
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if (blockSize < minBlockSize) blockSize = minBlockSize;
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if (blockSize > maxBlockSize) blockSize = maxBlockSize;
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g_blockSize = blockSize;
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blockSize--;
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/* find which of { 64k, 256k, 1MB, 4MB } is closest to blockSize */
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while (blockSize >>= 2)
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bsid++;
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if (bsid < 7) bsid = 7;
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g_blockSizeId = bsid-3;
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return g_blockSize;
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}
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}
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int LZ4IO_setBlockMode(LZ4IO_blockMode_t blockMode)
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int LZ4IO_setBlockMode(LZ4IO_blockMode_t blockMode)
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@ -499,7 +518,7 @@ static LZ4F_CDict* LZ4IO_createCDict(void) {
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static cRess_t LZ4IO_createCResources(void)
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static cRess_t LZ4IO_createCResources(void)
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{
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{
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const size_t blockSize = (size_t)LZ4IO_GetBlockSize_FromBlockId (g_blockSizeId);
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const size_t blockSize = g_blockSize;
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cRess_t ress;
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cRess_t ress;
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LZ4F_errorCode_t const errorCode = LZ4F_createCompressionContext(&(ress.ctx), LZ4F_VERSION);
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LZ4F_errorCode_t const errorCode = LZ4F_createCompressionContext(&(ress.ctx), LZ4F_VERSION);
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@ -543,7 +562,7 @@ static int LZ4IO_compressFilename_extRess(cRess_t ress, const char* srcFileName,
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void* const srcBuffer = ress.srcBuffer;
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void* const srcBuffer = ress.srcBuffer;
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void* const dstBuffer = ress.dstBuffer;
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void* const dstBuffer = ress.dstBuffer;
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const size_t dstBufferSize = ress.dstBufferSize;
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const size_t dstBufferSize = ress.dstBufferSize;
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const size_t blockSize = (size_t)LZ4IO_GetBlockSize_FromBlockId (g_blockSizeId);
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const size_t blockSize = g_blockSize;
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size_t readSize;
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size_t readSize;
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LZ4F_compressionContext_t ctx = ress.ctx; /* just a pointer */
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LZ4F_compressionContext_t ctx = ress.ctx; /* just a pointer */
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LZ4F_preferences_t prefs;
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LZ4F_preferences_t prefs;
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@ -78,6 +78,10 @@ int LZ4IO_setTestMode(int yes);
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return : 0 if error, blockSize if OK */
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return : 0 if error, blockSize if OK */
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size_t LZ4IO_setBlockSizeID(unsigned blockSizeID);
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size_t LZ4IO_setBlockSizeID(unsigned blockSizeID);
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/* blockSize : valid values : 32 -> 4MB
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return : 0 if error, actual blocksize if OK */
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size_t LZ4IO_setBlockSize(size_t blockSize);
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/* Default setting : independent blocks */
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/* Default setting : independent blocks */
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typedef enum { LZ4IO_blockLinked=0, LZ4IO_blockIndependent} LZ4IO_blockMode_t;
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typedef enum { LZ4IO_blockLinked=0, LZ4IO_blockIndependent} LZ4IO_blockMode_t;
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int LZ4IO_setBlockMode(LZ4IO_blockMode_t blockMode);
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int LZ4IO_setBlockMode(LZ4IO_blockMode_t blockMode);
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@ -63,7 +63,7 @@ NB_LOOPS ?= -i1
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default: all
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default: all
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all: fullbench fuzzer frametest roundTripTest datagen
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all: fullbench fuzzer frametest roundTripTest datagen checkFrame
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all32: CFLAGS+=-m32
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all32: CFLAGS+=-m32
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all32: all
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all32: all
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@ -109,6 +109,9 @@ roundTripTest : lz4.o lz4hc.o xxhash.o roundTripTest.c
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datagen : $(PRGDIR)/datagen.c datagencli.c
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datagen : $(PRGDIR)/datagen.c datagencli.c
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$(CC) $(FLAGS) -I$(PRGDIR) $^ -o $@$(EXT)
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$(CC) $(FLAGS) -I$(PRGDIR) $^ -o $@$(EXT)
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checkFrame : lz4frame.o lz4.o lz4hc.o xxhash.o checkFrame.c
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$(CC) $(FLAGS) $^ -o $@$(EXT)
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clean:
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clean:
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@$(MAKE) -C $(LZ4DIR) $@ > $(VOID)
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@$(MAKE) -C $(LZ4DIR) $@ > $(VOID)
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@$(MAKE) -C $(PRGDIR) $@ > $(VOID)
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@$(MAKE) -C $(PRGDIR) $@ > $(VOID)
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@ -118,7 +121,8 @@ clean:
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fuzzer$(EXT) fuzzer32$(EXT) \
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fuzzer$(EXT) fuzzer32$(EXT) \
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frametest$(EXT) frametest32$(EXT) \
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frametest$(EXT) frametest32$(EXT) \
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fasttest$(EXT) roundTripTest$(EXT) \
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fasttest$(EXT) roundTripTest$(EXT) \
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datagen$(EXT) checkTag$(EXT)
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datagen$(EXT) checkTag$(EXT) \
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frameTest$(EXT)
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@rm -fR $(TESTDIR)
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@rm -fR $(TESTDIR)
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@echo Cleaning completed
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@echo Cleaning completed
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269
tests/checkFrame.c
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269
tests/checkFrame.c
Normal file
@ -0,0 +1,269 @@
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/*
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checkFrame - verify frame headers
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Copyright (C) Yann Collet 2014-2016
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GPL v2 License
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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You can contact the author at :
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- LZ4 homepage : http://www.lz4.org
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- LZ4 source repository : https://github.com/lz4/lz4
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*/
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/*-************************************
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* Compiler specific
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**************************************/
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#ifdef _MSC_VER /* Visual Studio */
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# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
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# pragma warning(disable : 4146) /* disable: C4146: minus unsigned expression */
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#endif
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/*-************************************
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* Includes
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**************************************/
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#include "util.h" /* U32 */
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#include <stdlib.h> /* malloc, free */
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#include <stdio.h> /* fprintf */
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#include <string.h> /* strcmp */
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#include <time.h> /* clock_t, clock(), CLOCKS_PER_SEC */
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#include <assert.h>
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#include "lz4frame.h" /* include multiple times to test correctness/safety */
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#include "lz4frame.h"
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#define LZ4F_STATIC_LINKING_ONLY
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#include "lz4frame.h"
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#include "lz4frame.h"
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#include "lz4.h" /* LZ4_VERSION_STRING */
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#define XXH_STATIC_LINKING_ONLY
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#include "xxhash.h" /* XXH64 */
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/*-************************************
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* Constants
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**************************************/
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#define KB *(1U<<10)
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#define MB *(1U<<20)
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#define GB *(1U<<30)
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/*-************************************
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* Macros
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**************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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#define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); }
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/**************************************
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* Exceptions
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***************************************/
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#ifndef DEBUG
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# define DEBUG 0
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#endif
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#define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__);
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#define EXM_THROW(error, ...) \
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{ \
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DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \
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DISPLAYLEVEL(1, "Error %i : ", error); \
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DISPLAYLEVEL(1, __VA_ARGS__); \
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DISPLAYLEVEL(1, " \n"); \
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exit(error); \
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}
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/*-***************************************
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* Local Parameters
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*****************************************/
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static U32 no_prompt = 0;
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static U32 displayLevel = 2;
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static U32 use_pause = 0;
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/*-*******************************************************
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* Fuzzer functions
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*********************************************************/
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#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
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#define MAX(a,b) ( (a) > (b) ? (a) : (b) )
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void frameCheck(const char *srcFileName, unsigned bsid, size_t blockSize)
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{
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FILE *srcFile;
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LZ4F_decompressionContext_t dctx = NULL;
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size_t srcBufferSize = 4 MB;
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void *srcBuffer = malloc(srcBufferSize);
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size_t dstBufferSize = 4 MB;
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void *dstBuffer = malloc(dstBufferSize);
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LZ4F_errorCode_t nextToLoad = 0;
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size_t curblocksize = 0;
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int partialBlock = 0;
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if (!srcBuffer || !dstBuffer) EXM_THROW(31, "Allocation error : not enough memory");
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srcFile = fopen(srcFileName, "rb");
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if ( srcFile==NULL ) EXM_THROW(1, "%s: %s \n", srcFileName, strerror(errno));
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if (LZ4F_isError( LZ4F_createDecompressionContext(&dctx, LZ4F_VERSION) )) {
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EXM_THROW(32, "Unable to create decompression context");
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}
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/* Main Loop */
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for (;;) {
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size_t readSize;
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size_t pos = 0;
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size_t decodedBytes = dstBufferSize;
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size_t remaining;
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LZ4F_frameInfo_t frameInfo;
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/* Read input */
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readSize = fread(srcBuffer, 1, srcBufferSize, srcFile);
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if (!readSize) break; /* reached end of file or stream */
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while (pos < readSize) { /* still to read */
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/* Decode Input (at least partially) */
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if (!nextToLoad) {
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/* LZ4F_decompress returned 0 : starting new frame */
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curblocksize = 0;
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remaining = readSize - pos;
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nextToLoad = LZ4F_getFrameInfo(dctx, &frameInfo, (char*)(srcBuffer)+pos, &remaining);
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if (LZ4F_isError(nextToLoad)) EXM_THROW(66, "Error getting frame info: %s", LZ4F_getErrorName(nextToLoad)); /* XXX */
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if (frameInfo.blockSizeID != bsid) EXM_THROW(66, "Block size ID %u != expected %u", frameInfo.blockSizeID, bsid);
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pos += remaining;
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/* nextToLoad should be block header size */
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remaining = nextToLoad;
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decodedBytes = dstBufferSize;
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nextToLoad = LZ4F_decompress(dctx, dstBuffer, &decodedBytes, (char*)(srcBuffer)+pos, &remaining, NULL);
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if (LZ4F_isError(nextToLoad)) EXM_THROW(66, "Decompression error : %s", LZ4F_getErrorName(nextToLoad));
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pos += remaining;
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}
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decodedBytes = dstBufferSize;
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/* nextToLoad should be just enough to cover the next block */
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if (nextToLoad > (readSize - pos)) {
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/* block is not fully contained in current buffer */
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partialBlock = 1;
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remaining = readSize - pos;
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} else {
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if (partialBlock) {
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partialBlock = 0;
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}
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remaining = nextToLoad;
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}
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nextToLoad = LZ4F_decompress(dctx, dstBuffer, &decodedBytes, (char*)(srcBuffer)+pos, &remaining, NULL);
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if (LZ4F_isError(nextToLoad)) EXM_THROW(66, "Decompression error : %s", LZ4F_getErrorName(nextToLoad));
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curblocksize += decodedBytes;
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pos += remaining;
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if (!partialBlock) {
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/* detect small block due to end of frame; the final 4-byte frame checksum could be left in the buffer */
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if ((curblocksize != 0) && (nextToLoad > 4)) {
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/* allow 4-byte fudge */
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if ((MAX(curblocksize, blockSize) - MIN(curblocksize, blockSize)) > 4)
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EXM_THROW(66, "Block size %zu != expected %zu", curblocksize, blockSize);
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}
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curblocksize = 0;
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}
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}
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}
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/* can be out because readSize == 0, which could be an fread() error */
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if (ferror(srcFile)) EXM_THROW(67, "Read error");
|
||||||
|
|
||||||
|
if (nextToLoad!=0) EXM_THROW(68, "Unfinished stream");
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int FUZ_usage(const char* programName)
|
||||||
|
{
|
||||||
|
DISPLAY( "Usage :\n");
|
||||||
|
DISPLAY( " %s [args] filename\n", programName);
|
||||||
|
DISPLAY( "\n");
|
||||||
|
DISPLAY( "Arguments :\n");
|
||||||
|
DISPLAY( " -b# : expected blocksizeID [4-7] (required)\n");
|
||||||
|
DISPLAY( " -B# : expected blocksize [4-7] (required)\n");
|
||||||
|
DISPLAY( " -v : verbose\n");
|
||||||
|
DISPLAY( " -h : display help and exit\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int main(int argc, const char** argv)
|
||||||
|
{
|
||||||
|
int argNb;
|
||||||
|
int bsid=0;
|
||||||
|
size_t blockSize=0;
|
||||||
|
const char* const programName = argv[0];
|
||||||
|
|
||||||
|
/* Check command line */
|
||||||
|
for (argNb=1; argNb<argc; argNb++) {
|
||||||
|
const char* argument = argv[argNb];
|
||||||
|
|
||||||
|
if(!argument) continue; /* Protection if argument empty */
|
||||||
|
|
||||||
|
/* Decode command (note : aggregated short commands are allowed) */
|
||||||
|
if (argument[0]=='-') {
|
||||||
|
if (!strcmp(argument, "--no-prompt")) {
|
||||||
|
no_prompt=1;
|
||||||
|
displayLevel=1;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
argument++;
|
||||||
|
|
||||||
|
while (*argument!=0) {
|
||||||
|
switch(*argument)
|
||||||
|
{
|
||||||
|
case 'h':
|
||||||
|
return FUZ_usage(programName);
|
||||||
|
case 'v':
|
||||||
|
argument++;
|
||||||
|
displayLevel++;
|
||||||
|
break;
|
||||||
|
case 'q':
|
||||||
|
argument++;
|
||||||
|
displayLevel--;
|
||||||
|
break;
|
||||||
|
case 'p': /* pause at the end */
|
||||||
|
argument++;
|
||||||
|
use_pause = 1;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'b':
|
||||||
|
argument++;
|
||||||
|
bsid=0;
|
||||||
|
while ((*argument>='0') && (*argument<='9')) {
|
||||||
|
bsid *= 10;
|
||||||
|
bsid += *argument - '0';
|
||||||
|
argument++;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'B':
|
||||||
|
argument++;
|
||||||
|
blockSize=0;
|
||||||
|
while ((*argument>='0') && (*argument<='9')) {
|
||||||
|
blockSize *= 10;
|
||||||
|
blockSize += *argument - '0';
|
||||||
|
argument++;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
;
|
||||||
|
return FUZ_usage(programName);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (bsid == 0 || blockSize == 0)
|
||||||
|
return FUZ_usage(programName);
|
||||||
|
DISPLAY("Starting frame checker (%i-bits, %s)\n", (int)(sizeof(size_t)*8), LZ4_VERSION_STRING);
|
||||||
|
frameCheck(argument, bsid, blockSize);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
72
tests/test_custom_block_sizes.sh
Executable file
72
tests/test_custom_block_sizes.sh
Executable file
@ -0,0 +1,72 @@
|
|||||||
|
#/usr/bin/env sh
|
||||||
|
set -e
|
||||||
|
|
||||||
|
LZ4=../lz4
|
||||||
|
CHECKFRAME=./checkFrame
|
||||||
|
DATAGEN=./datagen
|
||||||
|
|
||||||
|
failures=""
|
||||||
|
|
||||||
|
TMPFILE=/tmp/test_custom_block_sizes.$$
|
||||||
|
TMPFILE1=/tmp/test_custom_block_sizes1.$$
|
||||||
|
TMPFILE2=/tmp/test_custom_block_sizes2.$$
|
||||||
|
$DATAGEN -g12345678 > $TMPFILE1
|
||||||
|
$DATAGEN -g12345678 > $TMPFILE2
|
||||||
|
|
||||||
|
echo Testing -B32
|
||||||
|
$LZ4 -f -B32 $TMPFILE && failures="31 (should fail) "
|
||||||
|
|
||||||
|
for blocksize in 512 65535 65536
|
||||||
|
do
|
||||||
|
echo Testing -B$blocksize
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE1
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE2
|
||||||
|
cat $TMPFILE1.lz4 $TMPFILE2.lz4 > $TMPFILE.lz4
|
||||||
|
$CHECKFRAME -B$blocksize -b4 $TMPFILE.lz4 || failures="$failures $blocksize "
|
||||||
|
done
|
||||||
|
|
||||||
|
for blocksize in 65537 262143 262144
|
||||||
|
do
|
||||||
|
echo Testing -B$blocksize
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE1
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE2
|
||||||
|
cat $TMPFILE1.lz4 $TMPFILE2.lz4 > $TMPFILE.lz4
|
||||||
|
$CHECKFRAME -B$blocksize -b5 $TMPFILE.lz4 || failures="$failures $blocksize "
|
||||||
|
done
|
||||||
|
|
||||||
|
for blocksize in 262145 1048575 1048576
|
||||||
|
do
|
||||||
|
echo Testing -B$blocksize
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE1
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE2
|
||||||
|
cat $TMPFILE1.lz4 $TMPFILE2.lz4 > $TMPFILE.lz4
|
||||||
|
$CHECKFRAME -B$blocksize -b6 $TMPFILE.lz4 || failures="$failures $blocksize "
|
||||||
|
done
|
||||||
|
|
||||||
|
for blocksize in 1048577 4194303 4194304
|
||||||
|
do
|
||||||
|
echo Testing -B$blocksize
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE1
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE2
|
||||||
|
cat $TMPFILE1.lz4 $TMPFILE2.lz4 > $TMPFILE.lz4
|
||||||
|
$CHECKFRAME -B$blocksize -b7 $TMPFILE.lz4 || failures="$failures $blocksize "
|
||||||
|
done
|
||||||
|
|
||||||
|
for blocksize in 4194305 10485760
|
||||||
|
do
|
||||||
|
echo Testing -B$blocksize
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE1
|
||||||
|
$LZ4 -f -B$blocksize $TMPFILE2
|
||||||
|
cat $TMPFILE1.lz4 $TMPFILE2.lz4 > $TMPFILE.lz4
|
||||||
|
$CHECKFRAME -B4194304 -b7 $TMPFILE.lz4 || failures="$failures $blocksize "
|
||||||
|
done
|
||||||
|
|
||||||
|
rm $TMPFILE.lz4 $TMPFILE1 $TMPFILE1.lz4 $TMPFILE2 $TMPFILE2.lz4
|
||||||
|
if [ "$failures" == "" ]
|
||||||
|
then
|
||||||
|
echo ---- All tests passed
|
||||||
|
exit 0
|
||||||
|
else
|
||||||
|
echo ---- The following tests had failures: $failures
|
||||||
|
exit 1
|
||||||
|
fi
|
Loading…
Reference in New Issue
Block a user