From: Kern Sibbald Date: Sat, 28 Oct 2017 18:45:10 +0000 (+0200) Subject: Remove unused lib/lz4.c.orig file X-Git-Tag: Release-9.0.5~26 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=df191eab8a598a68da94fbf593c9a17d10f8be1b;p=bacula%2Fbacula Remove unused lib/lz4.c.orig file --- diff --git a/bacula/src/lib/lz4.c.orig b/bacula/src/lib/lz4.c.orig deleted file mode 100644 index 1e174016c3..0000000000 --- a/bacula/src/lib/lz4.c.orig +++ /dev/null @@ -1,685 +0,0 @@ -/* - LZ4 - Fast LZ compression algorithm - Copyright (C) 2011-2013, Yann Collet. - BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php) - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are - met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the following disclaimer - in the documentation and/or other materials provided with the - distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - You can contact the author at : - - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html - - LZ4 source repository : http://code.google.com/p/lz4/ -*/ - -#include "config.h" - -/* -Note : this source file requires "lz4_encoder.h" -*/ - -//************************************** -// Tuning parameters -//************************************** -// MEMORY_USAGE : -// Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; etc.) -// Increasing memory usage improves compression ratio -// Reduced memory usage can improve speed, due to cache effect -// Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache -#define MEMORY_USAGE 14 - -// HEAPMODE : -// Select how default compression function will allocate memory for its hash table, -// in memory stack (0:default, fastest), or in memory heap (1:requires memory allocation (malloc)). -// Default allocation strategy is to use stack (HEAPMODE 0) -// Note : explicit functions *_stack* and *_heap* are unaffected by this setting -#define HEAPMODE 0 - -// BIG_ENDIAN_NATIVE_BUT_INCOMPATIBLE : -// This will provide a small boost to performance for big endian cpu, but the resulting compressed stream will be incompatible with little-endian CPU. -// You can set this option to 1 in situations where data will remain within closed environment -// This option is useless on Little_Endian CPU (such as x86) -//#define BIG_ENDIAN_NATIVE_BUT_INCOMPATIBLE 1 - -#ifdef HAVE_BIG_ENDIAN -#define LZ4_BIG_ENDIAN 1 -#else -#if defined(__sparc) || defined(__sparc__) \ - || defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) \ - || defined(__hpux) || defined(__hppa) \ - || defined(_MIPSEB) || defined(__s390__) -#error "BIG Endian detected but not set" -#endif -#endif - -//************************************** -// CPU Feature Detection -//************************************** -// 32 or 64 bits ? -#if (defined(__x86_64__) || defined(_M_X64) || defined(_WIN64) \ - || defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) \ - || defined(__64BIT__) || defined(_LP64) || defined(__LP64__) \ - || defined(__ia64) || defined(__itanium__) || defined(_M_IA64) ) // Detects 64 bits mode -# define LZ4_ARCH64 1 -#else -# define LZ4_ARCH64 0 -#endif - - -// Unaligned memory access is automatically enabled for "common" CPU, such as x86. -// For others CPU, the compiler will be more cautious, and insert extra code to ensure aligned access is respected -// If you know your target CPU supports unaligned memory access, you want to force this option manually to improve performance -#if defined(__ARM_FEATURE_UNALIGNED) -# define LZ4_FORCE_UNALIGNED_ACCESS 1 -#endif - -// Define this parameter if your target system or compiler does not support hardware bit count -#if defined(_MSC_VER) && defined(_WIN32_WCE) // Visual Studio for Windows CE does not support Hardware bit count -# define LZ4_FORCE_SW_BITCOUNT -#endif - - -//************************************** -// Compiler Options -//************************************** -#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L // C99 -/* "restrict" is a known keyword */ -#elif !defined restrict -# define restrict // Disable restrict -#endif - - -#define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) - -#ifdef _MSC_VER // Visual Studio -# include // For Visual 2005 -# if LZ4_ARCH64 // 64-bit -# pragma intrinsic(_BitScanForward64) // For Visual 2005 -# pragma intrinsic(_BitScanReverse64) // For Visual 2005 -# else -# pragma intrinsic(_BitScanForward) // For Visual 2005 -# pragma intrinsic(_BitScanReverse) // For Visual 2005 -# endif -# pragma warning(disable : 4127) // disable: C4127: conditional expression is constant -#endif - -#ifdef _MSC_VER -# define lz4_bswap16(x) _byteswap_ushort(x) -#else -# define lz4_bswap16(x) ((unsigned short int) ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8))) -#endif - -#if (GCC_VERSION >= 302) || (__INTEL_COMPILER >= 800) || defined(__clang__) -# define expect(expr,value) (__builtin_expect ((expr),(value)) ) -#else -# define expect(expr,value) (expr) -#endif - -#define likely(expr) expect((expr) != 0, 1) -#define unlikely(expr) expect((expr) != 0, 0) - - -//************************************** -// Includes -//************************************** -#include // for malloc -#include // for memset -#include "lz4.h" - - -//************************************** -// Basic Types -//************************************** -#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; -#else - typedef unsigned char BYTE; - typedef unsigned short U16; - typedef unsigned int U32; - typedef signed int S32; - typedef unsigned long long U64; -#endif - -#if defined(__GNUC__) && !defined(LZ4_FORCE_UNALIGNED_ACCESS) -# define _PACKED __attribute__ ((packed)) -#else -# define _PACKED -#endif - -#if !defined(LZ4_FORCE_UNALIGNED_ACCESS) && !defined(__GNUC__) -# pragma pack(push, 1) -#endif - -typedef struct _U16_S { U16 v; } _PACKED U16_S; -typedef struct _U32_S { U32 v; } _PACKED U32_S; -typedef struct _U64_S { U64 v; } _PACKED U64_S; - -#if !defined(LZ4_FORCE_UNALIGNED_ACCESS) && !defined(__GNUC__) -# pragma pack(pop) -#endif - -#define A64(x) (((U64_S *)(x))->v) -#define A32(x) (((U32_S *)(x))->v) -#define A16(x) (((U16_S *)(x))->v) - - -//************************************** -// Constants -//************************************** -#define HASHTABLESIZE (1 << MEMORY_USAGE) - -#define MINMATCH 4 - -#define COPYLENGTH 8 -#define LASTLITERALS 5 -#define MFLIMIT (COPYLENGTH+MINMATCH) -#define MINLENGTH (MFLIMIT+1) - -#define LZ4_64KLIMIT ((1<<16) + (MFLIMIT-1)) -#define SKIPSTRENGTH 6 // Increasing this value will make the compression run slower on incompressible data - -#define MAXD_LOG 16 -#define MAX_DISTANCE ((1 << MAXD_LOG) - 1) - -#define ML_BITS 4 -#define ML_MASK ((1U<>3); - #elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT) - return (__builtin_clzll(val) >> 3); - #else - int r; - if (!(val>>32)) { r=4; } else { r=0; val>>=32; } - if (!(val>>16)) { r+=2; val>>=8; } else { val>>=24; } - r += (!val); - return r; - #endif -#else - #if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT) - unsigned long r = 0; - _BitScanForward64( &r, val ); - return (int)(r>>3); - #elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT) - return (__builtin_ctzll(val) >> 3); - #else - static const int DeBruijnBytePos[64] = { 0, 0, 0, 0, 0, 1, 1, 2, 0, 3, 1, 3, 1, 4, 2, 7, 0, 2, 3, 6, 1, 5, 3, 5, 1, 3, 4, 4, 2, 5, 6, 7, 7, 0, 1, 2, 3, 3, 4, 6, 2, 6, 5, 5, 3, 4, 5, 6, 7, 1, 2, 4, 6, 4, 4, 5, 7, 2, 6, 5, 7, 6, 7, 7 }; - return DeBruijnBytePos[((U64)((val & -val) * 0x0218A392CDABBD3F)) >> 58]; - #endif -#endif -} - -#else - -static inline int LZ4_NbCommonBytes (register U32 val) -{ -#if defined(LZ4_BIG_ENDIAN) -# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT) - unsigned long r = 0; - _BitScanReverse( &r, val ); - return (int)(r>>3); -# elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT) - return (__builtin_clz(val) >> 3); -# else - int r; - if (!(val>>16)) { r=2; val>>=8; } else { r=0; val>>=24; } - r += (!val); - return r; -# endif -#else -# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT) - unsigned long r; - _BitScanForward( &r, val ); - return (int)(r>>3); -# elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT) - return (__builtin_ctz(val) >> 3); -# else - static const int DeBruijnBytePos[32] = { 0, 0, 3, 0, 3, 1, 3, 0, 3, 2, 2, 1, 3, 2, 0, 1, 3, 3, 1, 2, 2, 2, 2, 0, 3, 1, 2, 0, 1, 0, 1, 1 }; - return DeBruijnBytePos[((U32)((val & -(S32)val) * 0x077CB531U)) >> 27]; -# endif -#endif -} - -#endif - - - -//****************************** -// Compression functions -//****************************** - -/* -int LZ4_compress_stack( - const char* source, - char* dest, - int inputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest'. -Destination buffer must be already allocated, and sized at a minimum of LZ4_compressBound(inputSize). -return : the number of bytes written in buffer 'dest' -*/ -#define FUNCTION_NAME LZ4_compress_stack -#include "lz4_encoder.h" - - -/* -int LZ4_compress_stack_limitedOutput( - const char* source, - char* dest, - int inputSize, - int maxOutputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest' of maximum size 'maxOutputSize'. -If it cannot achieve it, compression will stop, and result of the function will be zero. -return : the number of bytes written in buffer 'dest', or 0 if the compression fails -*/ -#define FUNCTION_NAME LZ4_compress_stack_limitedOutput -#define LIMITED_OUTPUT -#include "lz4_encoder.h" - - -/* -int LZ4_compress64k_stack( - const char* source, - char* dest, - int inputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest'. -This function compresses better than LZ4_compress_stack(), on the condition that -'inputSize' must be < to LZ4_64KLIMIT, or the function will fail. -Destination buffer must be already allocated, and sized at a minimum of LZ4_compressBound(inputSize). -return : the number of bytes written in buffer 'dest', or 0 if compression fails -*/ -#define FUNCTION_NAME LZ4_compress64k_stack -#define COMPRESS_64K -#include "lz4_encoder.h" - - -/* -int LZ4_compress64k_stack_limitedOutput( - const char* source, - char* dest, - int inputSize, - int maxOutputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest' of maximum size 'maxOutputSize'. -This function compresses better than LZ4_compress_stack_limitedOutput(), on the condition that -'inputSize' must be < to LZ4_64KLIMIT, or the function will fail. -If it cannot achieve it, compression will stop, and result of the function will be zero. -return : the number of bytes written in buffer 'dest', or 0 if the compression fails -*/ -#define FUNCTION_NAME LZ4_compress64k_stack_limitedOutput -#define COMPRESS_64K -#define LIMITED_OUTPUT -#include "lz4_encoder.h" - - -/* -void* LZ4_createHeapMemory(); -int LZ4_freeHeapMemory(void* ctx); - -Used to allocate and free hashTable memory -to be used by the LZ4_compress_heap* family of functions. -LZ4_createHeapMemory() returns NULL is memory allocation fails. -*/ -void* LZ4_create() { return malloc(HASHTABLESIZE); } -int LZ4_free(void* ctx) { free(ctx); return 0; } - - -/* -int LZ4_compress_heap( - void* ctx, - const char* source, - char* dest, - int inputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest'. -The memory used for compression must be created by LZ4_createHeapMemory() and provided by pointer 'ctx'. -Destination buffer must be already allocated, and sized at a minimum of LZ4_compressBound(inputSize). -return : the number of bytes written in buffer 'dest' -*/ -#define FUNCTION_NAME LZ4_compress_heap -#define USE_HEAPMEMORY -#include "lz4_encoder.h" - - -/* -int LZ4_compress_heap_limitedOutput( - void* ctx, - const char* source, - char* dest, - int inputSize, - int maxOutputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest' of maximum size 'maxOutputSize'. -If it cannot achieve it, compression will stop, and result of the function will be zero. -The memory used for compression must be created by LZ4_createHeapMemory() and provided by pointer 'ctx'. -return : the number of bytes written in buffer 'dest', or 0 if the compression fails -*/ -#define FUNCTION_NAME LZ4_compress_heap_limitedOutput -#define LIMITED_OUTPUT -#define USE_HEAPMEMORY -#include "lz4_encoder.h" - - -/* -int LZ4_compress64k_heap( - void* ctx, - const char* source, - char* dest, - int inputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest'. -The memory used for compression must be created by LZ4_createHeapMemory() and provided by pointer 'ctx'. -'inputSize' must be < to LZ4_64KLIMIT, or the function will fail. -Destination buffer must be already allocated, and sized at a minimum of LZ4_compressBound(inputSize). -return : the number of bytes written in buffer 'dest' -*/ -#define FUNCTION_NAME LZ4_compress64k_heap -#define COMPRESS_64K -#define USE_HEAPMEMORY -#include "lz4_encoder.h" - - -/* -int LZ4_compress64k_heap_limitedOutput( - void* ctx, - const char* source, - char* dest, - int inputSize, - int maxOutputSize) - -Compress 'inputSize' bytes from 'source' into an output buffer 'dest' of maximum size 'maxOutputSize'. -If it cannot achieve it, compression will stop, and result of the function will be zero. -The memory used for compression must be created by LZ4_createHeapMemory() and provided by pointer 'ctx'. -'inputSize' must be < to LZ4_64KLIMIT, or the function will fail. -return : the number of bytes written in buffer 'dest', or 0 if the compression fails -*/ -#define FUNCTION_NAME LZ4_compress64k_heap_limitedOutput -#define COMPRESS_64K -#define LIMITED_OUTPUT -#define USE_HEAPMEMORY -#include "lz4_encoder.h" - - -int LZ4_compress(const char* source, char* dest, int inputSize) -{ -#if HEAPMODE - void* ctx = LZ4_create(); - int result; - if (ctx == NULL) return 0; // Failed allocation => compression not done - if (inputSize < LZ4_64KLIMIT) - result = LZ4_compress64k_heap(ctx, source, dest, inputSize); - else result = LZ4_compress_heap(ctx, source, dest, inputSize); - LZ4_free(ctx); - return result; -#else - if (inputSize < (int)LZ4_64KLIMIT) return LZ4_compress64k_stack(source, dest, inputSize); - return LZ4_compress_stack(source, dest, inputSize); -#endif -} - - -int LZ4_compress_limitedOutput(const char* source, char* dest, int inputSize, int maxOutputSize) -{ -#if HEAPMODE - void* ctx = LZ4_create(); - int result; - if (ctx == NULL) return 0; // Failed allocation => compression not done - if (inputSize < LZ4_64KLIMIT) - result = LZ4_compress64k_heap_limitedOutput(ctx, source, dest, inputSize, maxOutputSize); - else result = LZ4_compress_heap_limitedOutput(ctx, source, dest, inputSize, maxOutputSize); - LZ4_free(ctx); - return result; -#else - if (inputSize < (int)LZ4_64KLIMIT) return LZ4_compress64k_stack_limitedOutput(source, dest, inputSize, maxOutputSize); - return LZ4_compress_stack_limitedOutput(source, dest, inputSize, maxOutputSize); -#endif -} - - -//**************************** -// Decompression functions -//**************************** - -typedef enum { noPrefix = 0, withPrefix = 1 } prefix64k_directive; -typedef enum { endOnOutputSize = 0, endOnInputSize = 1 } end_directive; -typedef enum { full = 0, partial = 1 } exit_directive; - - -// This generic decompression function cover all use cases. -// It shall be instanciated several times, using different sets of directives -// Note that it is essential this generic function is really inlined, -// in order to remove useless branches during compilation optimisation. -static inline int LZ4_decompress_generic( - const char* source, - char* dest, - int inputSize, // - int outputSize, // OutputSize must be != 0; if endOnInput==endOnInputSize, this value is the max size of Output Buffer. - - int endOnInput, // endOnOutputSize, endOnInputSize - int prefix64k, // noPrefix, withPrefix - int partialDecoding, // full, partial - int targetOutputSize // only used if partialDecoding==partial - ) -{ - // Local Variables - const BYTE* restrict ip = (const BYTE*) source; - const BYTE* ref; - const BYTE* const iend = ip + inputSize; - - BYTE* op = (BYTE*) dest; - BYTE* const oend = op + outputSize; - BYTE* cpy; - BYTE* oexit = op + targetOutputSize; - - size_t dec32table[] = {0, 3, 2, 3, 0, 0, 0, 0}; -#if LZ4_ARCH64 - size_t dec64table[] = {0, 0, 0, (size_t)-1, 0, 1, 2, 3}; -#endif - - - // Special case - if ((partialDecoding) && (oexit> oend-MFLIMIT)) oexit = oend-MFLIMIT; // targetOutputSize too large, better decode everything - if unlikely(outputSize==0) goto _output_error; // Empty output buffer - - - // Main Loop - while (1) - { - unsigned token; - size_t length; - - // get runlength - token = *ip++; - if ((length=(token>>ML_BITS)) == RUN_MASK) - { - unsigned s=255; - while (((endOnInput)?ip(partialDecoding?oexit:oend-MFLIMIT)) || (ip+length>iend-(2+1+LASTLITERALS))) ) - || ((!endOnInput) && (cpy>oend-COPYLENGTH))) - { - if (partialDecoding) - { - if (cpy > oend) goto _output_error; // Error : write attempt beyond end of output buffer - if ((endOnInput) && (ip+length > iend)) goto _output_error; // Error : read attempt beyond end of input buffer - } - else - { - if ((!endOnInput) && (cpy != oend)) goto _output_error; // Error : block decoding must stop exactly there, due to parsing restrictions - if ((endOnInput) && ((ip+length != iend) || (cpy > oend))) goto _output_error; // Error : not enough place for another match (min 4) + 5 literals - } - memcpy(op, ip, length); - ip += length; - op += length; - break; // Necessarily EOF, due to parsing restrictions - } - LZ4_WILDCOPY(ip, op, cpy); ip -= (op-cpy); op = cpy; - - // get offset - LZ4_READ_LITTLEENDIAN_16(ref,cpy,ip); ip+=2; - if ((prefix64k==noPrefix) && unlikely(ref < (BYTE* const)dest)) goto _output_error; // Error : offset outside destination buffer - - // get matchlength - if ((length=(token&ML_MASK)) == ML_MASK) - { - while (endOnInput ? ipoend-(COPYLENGTH)-(STEPSIZE-4)) - { - if (cpy > oend-LASTLITERALS) goto _output_error; // Error : last 5 bytes must be literals - LZ4_SECURECOPY(ref, op, (oend-COPYLENGTH)); - while(op