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authorKotresh HR <khiremat@redhat.com>2017-06-28 05:09:12 -0400
committerNiels de Vos <ndevos@redhat.com>2017-06-30 08:16:57 +0000
commit292b4e42fdc023e307fde35e189285040d4b9cdd (patch)
tree1c91585e4a9c4bd3871666622f8fe5f158c67ec0
parentd95535bae2d200c2210feac7568b1fdbf6f545a9 (diff)
contrib/xxhash: Add xxhash library
xxhash is a faster non-cryptographic hash. https://github.com/Cyan4973/xxHash Release Taken: "xxHash v0.6.2" -------------- Files added: contrib/xxhash/xxhash.c contrib/xxhash/xxhash.h contrib/xxhash/xxhsum.c Modifications to source: ------------------------ Following functions and data types got 'GF_' prefix as below to avoid any form of name collisions in future. ---- Functions ---- GF_XXH_versionNumber GF_XXH32 GF_XXH32_createState GF_XXH32_freeState GF_XXH32_copyState GF_XXH32_reset GF_XXH32_update GF_XXH32_digest GF_XXH32_canonicalFromHash GF_XXH32_hashFromCanonical GF_XXH64 GF_XXH64_createState GF_XXH64_freeState GF_XXH64_copyState GF_XXH64_reset GF_XXH64_update GF_XXH64_digest GF_XXH64_canonicalFromHash GF_XXH64_hashFromCanonical ---- Data Types ---- GF_XXH_errorcode GF_XXH32_state_t* GF_XXH32_canonical_t* GF_XXH32_hash_t GF_XXH64_state_t* GF_XXH64_canonical_t* GF_XXH64_hash_t It is linked with libglusterfs.so. A wrapper funtion is also added for the easy usage in common-utils.c. xxhash can be used for the all the usecases where a faster non-cryptographic hash is required. gfid to path infra would be using this for now. NOTE: ---- The gluster coding guidelines check is ignored as maintaining it further would be difficult. Updates: #253 Change-Id: Ib143f90d91d4ee99864a10246d5983e92900173b Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: https://review.gluster.org/17641 Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Amar Tumballi <amarts@redhat.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Niels de Vos <ndevos@redhat.com>
Diffstat
-rw-r--r--MAINTAINERS8
-rw-r--r--contrib/xxhash/xxhash.c890
-rw-r--r--contrib/xxhash/xxhash.h301
-rw-r--r--contrib/xxhash/xxhsum.c1238
-rw-r--r--libglusterfs/src/Makefile.am5
-rw-r--r--libglusterfs/src/common-utils.c18
-rw-r--r--libglusterfs/src/common-utils.h5
7 files changed, 2464 insertions, 1 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index b1ccca0f48a..4bb7aebc238 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -191,6 +191,14 @@ M: Pranith Karampuri <pkarampu@redhat.com>
S: Maintained
F: libglusterfs/
+xxhash
+M: Aravinda VK <avishwan@redhat.com>
+M: Kotresh HR <khiremat@redhat.com>
+P: Amar Tumballi <amarts@redhat.com>
+S: Maintained
+F: contrib/xxhash/
+T: https://github.com/Cyan4973/xxHash.git
+
Management Daemon
M: Kaushal Madappa <kmadapp@redhat.com>
M: Atin Mukherjee <amukherj@redhat.com>
diff --git a/contrib/xxhash/xxhash.c b/contrib/xxhash/xxhash.c
new file mode 100644
index 00000000000..d5592c2d7ee
--- /dev/null
+++ b/contrib/xxhash/xxhash.c
@@ -0,0 +1,890 @@
+/*
+* xxHash - Fast Hash algorithm
+* Copyright (C) 2012-2016, 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 :
+* - xxHash homepage: http://www.xxhash.com
+* - xxHash source repository : https://github.com/Cyan4973/xxHash
+*/
+
+
+/* *************************************
+* Tuning parameters
+***************************************/
+/*!XXH_FORCE_MEMORY_ACCESS :
+ * By default, access to unaligned memory is controlled by `memcpy()`, which is safe and portable.
+ * Unfortunately, on some target/compiler combinations, the generated assembly is sub-optimal.
+ * The below switch allow to select different access method for improved performance.
+ * Method 0 (default) : use `memcpy()`. Safe and portable.
+ * Method 1 : `__packed` statement. It depends on compiler extension (ie, not portable).
+ * This method is safe if your compiler supports it, and *generally* as fast or faster than `memcpy`.
+ * Method 2 : direct access. This method doesn't depend on compiler but violate C standard.
+ * It can generate buggy code on targets which do not support unaligned memory accesses.
+ * But in some circumstances, it's the only known way to get the most performance (ie GCC + ARMv6)
+ * See http://stackoverflow.com/a/32095106/646947 for details.
+ * Prefer these methods in priority order (0 > 1 > 2)
+ */
+#ifndef XXH_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
+# if defined(__GNUC__) && ( defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) )
+# define XXH_FORCE_MEMORY_ACCESS 2
+# elif defined(__INTEL_COMPILER) || \
+ (defined(__GNUC__) && ( defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__) ))
+# define XXH_FORCE_MEMORY_ACCESS 1
+# endif
+#endif
+
+/*!XXH_ACCEPT_NULL_INPUT_POINTER :
+ * If the input pointer is a null pointer, xxHash default behavior is to trigger a memory access error, since it is a bad pointer.
+ * When this option is enabled, xxHash output for null input pointers will be the same as a null-length input.
+ * By default, this option is disabled. To enable it, uncomment below define :
+ */
+/* #define XXH_ACCEPT_NULL_INPUT_POINTER 1 */
+
+/*!XXH_FORCE_NATIVE_FORMAT :
+ * By default, xxHash library provides endian-independant Hash values, based on little-endian convention.
+ * Results are therefore identical for little-endian and big-endian CPU.
+ * This comes at a performance cost for big-endian CPU, since some swapping is required to emulate little-endian format.
+ * Should endian-independance be of no importance for your application, you may set the #define below to 1,
+ * to improve speed for Big-endian CPU.
+ * This option has no impact on Little_Endian CPU.
+ */
+#ifndef XXH_FORCE_NATIVE_FORMAT /* can be defined externally */
+# define XXH_FORCE_NATIVE_FORMAT 0
+#endif
+
+/*!XXH_FORCE_ALIGN_CHECK :
+ * This is a minor performance trick, only useful with lots of very small keys.
+ * It means : check for aligned/unaligned input.
+ * The check costs one initial branch per hash; set to 0 when the input data
+ * is guaranteed to be aligned.
+ */
+#ifndef XXH_FORCE_ALIGN_CHECK /* can be defined externally */
+# if defined(__i386) || defined(_M_IX86) || defined(__x86_64__) || defined(_M_X64)
+# define XXH_FORCE_ALIGN_CHECK 0
+# else
+# define XXH_FORCE_ALIGN_CHECK 1
+# endif
+#endif
+
+
+/* *************************************
+* Includes & Memory related functions
+***************************************/
+/* Modify the local functions below should you wish to use some other memory routines */
+/* for malloc(), free() */
+#include <stdlib.h>
+static void* XXH_malloc(size_t s) { return malloc(s); }
+static void XXH_free (void* p) { free(p); }
+/* for memcpy() */
+#include <string.h>
+static void* XXH_memcpy(void* dest, const void* src, size_t size) { return memcpy(dest,src,size); }
+
+#define XXH_STATIC_LINKING_ONLY
+#include "xxhash.h"
+
+
+/* *************************************
+* Compiler Specific Options
+***************************************/
+#ifdef _MSC_VER /* Visual Studio */
+# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
+# define FORCE_INLINE static __forceinline
+#else
+# if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
+# ifdef __GNUC__
+# define FORCE_INLINE static inline __attribute__((always_inline))
+# else
+# define FORCE_INLINE static inline
+# endif
+# else
+# define FORCE_INLINE static
+# endif /* __STDC_VERSION__ */
+#endif
+
+
+/* *************************************
+* Basic Types
+***************************************/
+#ifndef MEM_MODULE
+# if !defined (__VMS) && (defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) )
+# include <stdint.h>
+ typedef uint8_t BYTE;
+ typedef uint16_t U16;
+ typedef uint32_t U32;
+ typedef int32_t S32;
+# else
+ typedef unsigned char BYTE;
+ typedef unsigned short U16;
+ typedef unsigned int U32;
+ typedef signed int S32;
+# endif
+#endif
+
+#if (defined(XXH_FORCE_MEMORY_ACCESS) && (XXH_FORCE_MEMORY_ACCESS==2))
+
+/* Force direct memory access. Only works on CPU which support unaligned memory access in hardware */
+static U32 XXH_read32(const void* memPtr) { return *(const U32*) memPtr; }
+
+#elif (defined(XXH_FORCE_MEMORY_ACCESS) && (XXH_FORCE_MEMORY_ACCESS==1))
+
+/* __pack instructions are safer, but compiler specific, hence potentially problematic for some compilers */
+/* currently only defined for gcc and icc */
+typedef union { U32 u32; } __attribute__((packed)) unalign;
+static U32 XXH_read32(const void* ptr) { return ((const unalign*)ptr)->u32; }
+
+#else
+
+/* portable and safe solution. Generally efficient.
+ * see : http://stackoverflow.com/a/32095106/646947
+ */
+static U32 XXH_read32(const void* memPtr)
+{
+ U32 val;
+ memcpy(&val, memPtr, sizeof(val));
+ return val;
+}
+
+#endif /* XXH_FORCE_DIRECT_MEMORY_ACCESS */
+
+
+/* ****************************************
+* Compiler-specific Functions and Macros
+******************************************/
+#define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
+
+/* Note : although _rotl exists for minGW (GCC under windows), performance seems poor */
+#if defined(_MSC_VER)
+# define XXH_rotl32(x,r) _rotl(x,r)
+# define XXH_rotl64(x,r) _rotl64(x,r)
+#else
+# define XXH_rotl32(x,r) ((x << r) | (x >> (32 - r)))
+# define XXH_rotl64(x,r) ((x << r) | (x >> (64 - r)))
+#endif
+
+#if defined(_MSC_VER) /* Visual Studio */
+# define XXH_swap32 _byteswap_ulong
+#elif GCC_VERSION >= 403
+# define XXH_swap32 __builtin_bswap32
+#else
+static U32 XXH_swap32 (U32 x)
+{
+ return ((x << 24) & 0xff000000 ) |
+ ((x << 8) & 0x00ff0000 ) |
+ ((x >> 8) & 0x0000ff00 ) |
+ ((x >> 24) & 0x000000ff );
+}
+#endif
+
+
+/* *************************************
+* Architecture Macros
+***************************************/
+typedef enum { XXH_bigEndian=0, XXH_littleEndian=1 } XXH_endianess;
+
+/* XXH_CPU_LITTLE_ENDIAN can be defined externally, for example on the compiler command line */
+#ifndef XXH_CPU_LITTLE_ENDIAN
+ static const int g_one = 1;
+# define XXH_CPU_LITTLE_ENDIAN (*(const char*)(&g_one))
+#endif
+
+
+/* ***************************
+* Memory reads
+*****************************/
+typedef enum { XXH_aligned, XXH_unaligned } XXH_alignment;
+
+FORCE_INLINE U32 XXH_readLE32_align(const void* ptr, XXH_endianess endian, XXH_alignment align)
+{
+ if (align==XXH_unaligned)
+ return endian==XXH_littleEndian ? XXH_read32(ptr) : XXH_swap32(XXH_read32(ptr));
+ else
+ return endian==XXH_littleEndian ? *(const U32*)ptr : XXH_swap32(*(const U32*)ptr);
+}
+
+FORCE_INLINE U32 XXH_readLE32(const void* ptr, XXH_endianess endian)
+{
+ return XXH_readLE32_align(ptr, endian, XXH_unaligned);
+}
+
+static U32 XXH_readBE32(const void* ptr)
+{
+ return XXH_CPU_LITTLE_ENDIAN ? XXH_swap32(XXH_read32(ptr)) : XXH_read32(ptr);
+}
+
+
+/* *************************************
+* Macros
+***************************************/
+#define XXH_STATIC_ASSERT(c) { enum { XXH_static_assert = 1/(int)(!!(c)) }; } /* use only *after* variable declarations */
+XXH_PUBLIC_API unsigned GF_XXH_versionNumber (void) { return XXH_VERSION_NUMBER; }
+
+
+/* *******************************************************************
+* 32-bits hash functions
+*********************************************************************/
+static const U32 PRIME32_1 = 2654435761U;
+static const U32 PRIME32_2 = 2246822519U;
+static const U32 PRIME32_3 = 3266489917U;
+static const U32 PRIME32_4 = 668265263U;
+static const U32 PRIME32_5 = 374761393U;
+
+static U32 XXH32_round(U32 seed, U32 input)
+{
+ seed += input * PRIME32_2;
+ seed = XXH_rotl32(seed, 13);
+ seed *= PRIME32_1;
+ return seed;
+}
+
+FORCE_INLINE U32 XXH32_endian_align(const void* input, size_t len, U32 seed, XXH_endianess endian, XXH_alignment align)
+{
+ const BYTE* p = (const BYTE*)input;
+ const BYTE* bEnd = p + len;
+ U32 h32;
+#define XXH_get32bits(p) XXH_readLE32_align(p, endian, align)
+
+#ifdef XXH_ACCEPT_NULL_INPUT_POINTER
+ if (p==NULL) {
+ len=0;
+ bEnd=p=(const BYTE*)(size_t)16;
+ }
+#endif
+
+ if (len>=16) {
+ const BYTE* const limit = bEnd - 16;
+ U32 v1 = seed + PRIME32_1 + PRIME32_2;
+ U32 v2 = seed + PRIME32_2;
+ U32 v3 = seed + 0;
+ U32 v4 = seed - PRIME32_1;
+
+ do {
+ v1 = XXH32_round(v1, XXH_get32bits(p)); p+=4;
+ v2 = XXH32_round(v2, XXH_get32bits(p)); p+=4;
+ v3 = XXH32_round(v3, XXH_get32bits(p)); p+=4;
+ v4 = XXH32_round(v4, XXH_get32bits(p)); p+=4;
+ } while (p<=limit);
+
+ h32 = XXH_rotl32(v1, 1) + XXH_rotl32(v2, 7) + XXH_rotl32(v3, 12) + XXH_rotl32(v4, 18);
+ } else {
+ h32 = seed + PRIME32_5;
+ }
+
+ h32 += (U32) len;
+
+ while (p+4<=bEnd) {
+ h32 += XXH_get32bits(p) * PRIME32_3;
+ h32 = XXH_rotl32(h32, 17) * PRIME32_4 ;
+ p+=4;
+ }
+
+ while (p<bEnd) {
+ h32 += (*p) * PRIME32_5;
+ h32 = XXH_rotl32(h32, 11) * PRIME32_1 ;
+ p++;
+ }
+
+ h32 ^= h32 >> 15;
+ h32 *= PRIME32_2;
+ h32 ^= h32 >> 13;
+ h32 *= PRIME32_3;
+ h32 ^= h32 >> 16;
+
+ return h32;
+}
+
+
+XXH_PUBLIC_API unsigned int GF_XXH32 (const void* input, size_t len, unsigned int seed)
+{
+#if 0
+ /* Simple version, good for code maintenance, but unfortunately slow for small inputs */
+ XXH32_CREATESTATE_STATIC(state);
+ GF_XXH32_reset(state, seed);
+ GF_XXH32_update(state, input, len);
+ return GF_XXH32_digest(state);
+#else
+ XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
+
+ if (XXH_FORCE_ALIGN_CHECK) {
+ if ((((size_t)input) & 3) == 0) { /* Input is 4-bytes aligned, leverage the speed benefit */
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH32_endian_align(input, len, seed, XXH_littleEndian, XXH_aligned);
+ else
+ return XXH32_endian_align(input, len, seed, XXH_bigEndian, XXH_aligned);
+ } }
+
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH32_endian_align(input, len, seed, XXH_littleEndian, XXH_unaligned);
+ else
+ return XXH32_endian_align(input, len, seed, XXH_bigEndian, XXH_unaligned);
+#endif
+}
+
+
+
+/*====== Hash streaming ======*/
+
+XXH_PUBLIC_API GF_XXH32_state_t* GF_XXH32_createState(void)
+{
+ return (GF_XXH32_state_t*)XXH_malloc(sizeof(GF_XXH32_state_t));
+}
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH32_freeState(GF_XXH32_state_t* statePtr)
+{
+ XXH_free(statePtr);
+ return XXH_OK;
+}
+
+XXH_PUBLIC_API void GF_XXH32_copyState(GF_XXH32_state_t* restrict dstState, const GF_XXH32_state_t* restrict srcState)
+{
+ memcpy(dstState, srcState, sizeof(*dstState));
+}
+
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH32_reset(GF_XXH32_state_t* statePtr, unsigned int seed)
+{
+ GF_XXH32_state_t state; /* using a local state to memcpy() in order to avoid strict-aliasing warnings */
+ memset(&state, 0, sizeof(state)-4); /* do not write into reserved, for future removal */
+ state.v1 = seed + PRIME32_1 + PRIME32_2;
+ state.v2 = seed + PRIME32_2;
+ state.v3 = seed + 0;
+ state.v4 = seed - PRIME32_1;
+ memcpy(statePtr, &state, sizeof(state));
+ return XXH_OK;
+}
+
+
+FORCE_INLINE GF_XXH_errorcode XXH32_update_endian (GF_XXH32_state_t* state, const void* input, size_t len, XXH_endianess endian)
+{
+ const BYTE* p = (const BYTE*)input;
+ const BYTE* const bEnd = p + len;
+
+#ifdef XXH_ACCEPT_NULL_INPUT_POINTER
+ if (input==NULL) return XXH_ERROR;
+#endif
+
+ state->total_len_32 += (unsigned)len;
+ state->large_len |= (len>=16) | (state->total_len_32>=16);
+
+ if (state->memsize + len < 16) { /* fill in tmp buffer */
+ XXH_memcpy((BYTE*)(state->mem32) + state->memsize, input, len);
+ state->memsize += (unsigned)len;
+ return XXH_OK;
+ }
+
+ if (state->memsize) { /* some data left from previous update */
+ XXH_memcpy((BYTE*)(state->mem32) + state->memsize, input, 16-state->memsize);
+ { const U32* p32 = state->mem32;
+ state->v1 = XXH32_round(state->v1, XXH_readLE32(p32, endian)); p32++;
+ state->v2 = XXH32_round(state->v2, XXH_readLE32(p32, endian)); p32++;
+ state->v3 = XXH32_round(state->v3, XXH_readLE32(p32, endian)); p32++;
+ state->v4 = XXH32_round(state->v4, XXH_readLE32(p32, endian)); p32++;
+ }
+ p += 16-state->memsize;
+ state->memsize = 0;
+ }
+
+ if (p <= bEnd-16) {
+ const BYTE* const limit = bEnd - 16;
+ U32 v1 = state->v1;
+ U32 v2 = state->v2;
+ U32 v3 = state->v3;
+ U32 v4 = state->v4;
+
+ do {
+ v1 = XXH32_round(v1, XXH_readLE32(p, endian)); p+=4;
+ v2 = XXH32_round(v2, XXH_readLE32(p, endian)); p+=4;
+ v3 = XXH32_round(v3, XXH_readLE32(p, endian)); p+=4;
+ v4 = XXH32_round(v4, XXH_readLE32(p, endian)); p+=4;
+ } while (p<=limit);
+
+ state->v1 = v1;
+ state->v2 = v2;
+ state->v3 = v3;
+ state->v4 = v4;
+ }
+
+ if (p < bEnd) {
+ XXH_memcpy(state->mem32, p, (size_t)(bEnd-p));
+ state->memsize = (unsigned)(bEnd-p);
+ }
+
+ return XXH_OK;
+}
+
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH32_update (GF_XXH32_state_t* state_in, const void* input, size_t len)
+{
+ XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
+
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH32_update_endian(state_in, input, len, XXH_littleEndian);
+ else
+ return XXH32_update_endian(state_in, input, len, XXH_bigEndian);
+}
+
+
+
+FORCE_INLINE U32 XXH32_digest_endian (const GF_XXH32_state_t* state, XXH_endianess endian)
+{
+ const BYTE * p = (const BYTE*)state->mem32;
+ const BYTE* const bEnd = (const BYTE*)(state->mem32) + state->memsize;
+ U32 h32;
+
+ if (state->large_len) {
+ h32 = XXH_rotl32(state->v1, 1) + XXH_rotl32(state->v2, 7) + XXH_rotl32(state->v3, 12) + XXH_rotl32(state->v4, 18);
+ } else {
+ h32 = state->v3 /* == seed */ + PRIME32_5;
+ }
+
+ h32 += state->total_len_32;
+
+ while (p+4<=bEnd) {
+ h32 += XXH_readLE32(p, endian) * PRIME32_3;
+ h32 = XXH_rotl32(h32, 17) * PRIME32_4;
+ p+=4;
+ }
+
+ while (p<bEnd) {
+ h32 += (*p) * PRIME32_5;
+ h32 = XXH_rotl32(h32, 11) * PRIME32_1;
+ p++;
+ }
+
+ h32 ^= h32 >> 15;
+ h32 *= PRIME32_2;
+ h32 ^= h32 >> 13;
+ h32 *= PRIME32_3;
+ h32 ^= h32 >> 16;
+
+ return h32;
+}
+
+
+XXH_PUBLIC_API unsigned int GF_XXH32_digest (const GF_XXH32_state_t* state_in)
+{
+ XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
+
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH32_digest_endian(state_in, XXH_littleEndian);
+ else
+ return XXH32_digest_endian(state_in, XXH_bigEndian);
+}
+
+
+/*====== Canonical representation ======*/
+
+/*! Default XXH result types are basic unsigned 32 and 64 bits.
+* The canonical representation follows human-readable write convention, aka big-endian (large digits first).
+* These functions allow transformation of hash result into and from its canonical format.
+* This way, hash values can be written into a file or buffer, and remain comparable across different systems and programs.
+*/
+
+XXH_PUBLIC_API void GF_XXH32_canonicalFromHash(GF_XXH32_canonical_t* dst, GF_XXH32_hash_t hash)
+{
+ XXH_STATIC_ASSERT(sizeof(GF_XXH32_canonical_t) == sizeof(GF_XXH32_hash_t));
+ if (XXH_CPU_LITTLE_ENDIAN) hash = XXH_swap32(hash);
+ memcpy(dst, &hash, sizeof(*dst));
+}
+
+XXH_PUBLIC_API GF_XXH32_hash_t GF_XXH32_hashFromCanonical(const GF_XXH32_canonical_t* src)
+{
+ return XXH_readBE32(src);
+}
+
+
+#ifndef XXH_NO_LONG_LONG
+
+/* *******************************************************************
+* 64-bits hash functions
+*********************************************************************/
+
+/*====== Memory access ======*/
+
+#ifndef MEM_MODULE
+# define MEM_MODULE
+# if !defined (__VMS) && (defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) )
+# include <stdint.h>
+ typedef uint64_t U64;
+# else
+ typedef unsigned long long U64; /* if your compiler doesn't support unsigned long long, replace by another 64-bit type here. Note that xxhash.h will also need to be updated. */
+# endif
+#endif
+
+
+#if (defined(XXH_FORCE_MEMORY_ACCESS) && (XXH_FORCE_MEMORY_ACCESS==2))
+
+/* Force direct memory access. Only works on CPU which support unaligned memory access in hardware */
+static U64 XXH_read64(const void* memPtr) { return *(const U64*) memPtr; }
+
+#elif (defined(XXH_FORCE_MEMORY_ACCESS) && (XXH_FORCE_MEMORY_ACCESS==1))
+
+/* __pack instructions are safer, but compiler specific, hence potentially problematic for some compilers */
+/* currently only defined for gcc and icc */
+typedef union { U32 u32; U64 u64; } __attribute__((packed)) unalign64;
+
+static U64 XXH_read64(const void* ptr) { return ((const unalign64*)ptr)->u64; }
+
+#else
+
+/* portable and safe solution. Generally efficient.
+ * see : http://stackoverflow.com/a/32095106/646947
+ */
+
+static U64 XXH_read64(const void* memPtr)
+{
+ U64 val;
+ memcpy(&val, memPtr, sizeof(val));
+ return val;
+}
+
+#endif /* XXH_FORCE_DIRECT_MEMORY_ACCESS */
+
+#if defined(_MSC_VER) /* Visual Studio */
+# define XXH_swap64 _byteswap_uint64
+#elif GCC_VERSION >= 403
+# define XXH_swap64 __builtin_bswap64
+#else
+static U64 XXH_swap64 (U64 x)
+{
+ return ((x << 56) & 0xff00000000000000ULL) |
+ ((x << 40) & 0x00ff000000000000ULL) |
+ ((x << 24) & 0x0000ff0000000000ULL) |
+ ((x << 8) & 0x000000ff00000000ULL) |
+ ((x >> 8) & 0x00000000ff000000ULL) |
+ ((x >> 24) & 0x0000000000ff0000ULL) |
+ ((x >> 40) & 0x000000000000ff00ULL) |
+ ((x >> 56) & 0x00000000000000ffULL);
+}
+#endif
+
+FORCE_INLINE U64 XXH_readLE64_align(const void* ptr, XXH_endianess endian, XXH_alignment align)
+{
+ if (align==XXH_unaligned)
+ return endian==XXH_littleEndian ? XXH_read64(ptr) : XXH_swap64(XXH_read64(ptr));
+ else
+ return endian==XXH_littleEndian ? *(const U64*)ptr : XXH_swap64(*(const U64*)ptr);
+}
+
+FORCE_INLINE U64 XXH_readLE64(const void* ptr, XXH_endianess endian)
+{
+ return XXH_readLE64_align(ptr, endian, XXH_unaligned);
+}
+
+static U64 XXH_readBE64(const void* ptr)
+{
+ return XXH_CPU_LITTLE_ENDIAN ? XXH_swap64(XXH_read64(ptr)) : XXH_read64(ptr);
+}
+
+
+/*====== xxh64 ======*/
+
+static const U64 PRIME64_1 = 11400714785074694791ULL;
+static const U64 PRIME64_2 = 14029467366897019727ULL;
+static const U64 PRIME64_3 = 1609587929392839161ULL;
+static const U64 PRIME64_4 = 9650029242287828579ULL;
+static const U64 PRIME64_5 = 2870177450012600261ULL;
+
+static U64 XXH64_round(U64 acc, U64 input)
+{
+ acc += input * PRIME64_2;
+ acc = XXH_rotl64(acc, 31);
+ acc *= PRIME64_1;
+ return acc;
+}
+
+static U64 XXH64_mergeRound(U64 acc, U64 val)
+{
+ val = XXH64_round(0, val);
+ acc ^= val;
+ acc = acc * PRIME64_1 + PRIME64_4;
+ return acc;
+}
+
+FORCE_INLINE U64 XXH64_endian_align(const void* input, size_t len, U64 seed, XXH_endianess endian, XXH_alignment align)
+{
+ const BYTE* p = (const BYTE*)input;
+ const BYTE* const bEnd = p + len;
+ U64 h64;
+#define XXH_get64bits(p) XXH_readLE64_align(p, endian, align)
+
+#ifdef XXH_ACCEPT_NULL_INPUT_POINTER
+ if (p==NULL) {
+ len=0;
+ bEnd=p=(const BYTE*)(size_t)32;
+ }
+#endif
+
+ if (len>=32) {
+ const BYTE* const limit = bEnd - 32;
+ U64 v1 = seed + PRIME64_1 + PRIME64_2;
+ U64 v2 = seed + PRIME64_2;
+ U64 v3 = seed + 0;
+ U64 v4 = seed - PRIME64_1;
+
+ do {
+ v1 = XXH64_round(v1, XXH_get64bits(p)); p+=8;
+ v2 = XXH64_round(v2, XXH_get64bits(p)); p+=8;
+ v3 = XXH64_round(v3, XXH_get64bits(p)); p+=8;
+ v4 = XXH64_round(v4, XXH_get64bits(p)); p+=8;
+ } while (p<=limit);
+
+ h64 = XXH_rotl64(v1, 1) + XXH_rotl64(v2, 7) + XXH_rotl64(v3, 12) + XXH_rotl64(v4, 18);
+ h64 = XXH64_mergeRound(h64, v1);
+ h64 = XXH64_mergeRound(h64, v2);
+ h64 = XXH64_mergeRound(h64, v3);
+ h64 = XXH64_mergeRound(h64, v4);
+
+ } else {
+ h64 = seed + PRIME64_5;
+ }
+
+ h64 += (U64) len;
+
+ while (p+8<=bEnd) {
+ U64 const k1 = XXH64_round(0, XXH_get64bits(p));
+ h64 ^= k1;
+ h64 = XXH_rotl64(h64,27) * PRIME64_1 + PRIME64_4;
+ p+=8;
+ }
+
+ if (p+4<=bEnd) {
+ h64 ^= (U64)(XXH_get32bits(p)) * PRIME64_1;
+ h64 = XXH_rotl64(h64, 23) * PRIME64_2 + PRIME64_3;
+ p+=4;
+ }
+
+ while (p<bEnd) {
+ h64 ^= (*p) * PRIME64_5;
+ h64 = XXH_rotl64(h64, 11) * PRIME64_1;
+ p++;
+ }
+
+ h64 ^= h64 >> 33;
+ h64 *= PRIME64_2;
+ h64 ^= h64 >> 29;
+ h64 *= PRIME64_3;
+ h64 ^= h64 >> 32;
+
+ return h64;
+}
+
+
+XXH_PUBLIC_API unsigned long long GF_XXH64 (const void* input, size_t len, unsigned long long seed)
+{
+#if 0
+ /* Simple version, good for code maintenance, but unfortunately slow for small inputs */
+ XXH64_CREATESTATE_STATIC(state);
+ GF_XXH64_reset(state, seed);
+ GF_XXH64_update(state, input, len);
+ return GF_XXH64_digest(state);
+#else
+ XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
+
+ if (XXH_FORCE_ALIGN_CHECK) {
+ if ((((size_t)input) & 7)==0) { /* Input is aligned, let's leverage the speed advantage */
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH64_endian_align(input, len, seed, XXH_littleEndian, XXH_aligned);
+ else
+ return XXH64_endian_align(input, len, seed, XXH_bigEndian, XXH_aligned);
+ } }
+
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH64_endian_align(input, len, seed, XXH_littleEndian, XXH_unaligned);
+ else
+ return XXH64_endian_align(input, len, seed, XXH_bigEndian, XXH_unaligned);
+#endif
+}
+
+/*====== Hash Streaming ======*/
+
+XXH_PUBLIC_API GF_XXH64_state_t* GF_XXH64_createState(void)
+{
+ return (GF_XXH64_state_t*)XXH_malloc(sizeof(GF_XXH64_state_t));
+}
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH64_freeState(GF_XXH64_state_t* statePtr)
+{
+ XXH_free(statePtr);
+ return XXH_OK;
+}
+
+XXH_PUBLIC_API void GF_XXH64_copyState(GF_XXH64_state_t* restrict dstState, const GF_XXH64_state_t* restrict srcState)
+{
+ memcpy(dstState, srcState, sizeof(*dstState));
+}
+
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH64_reset(GF_XXH64_state_t* statePtr, unsigned long long seed)
+{
+ GF_XXH64_state_t state; /* using a local state to memcpy() in order to avoid strict-aliasing warnings */
+ memset(&state, 0, sizeof(state)-8); /* do not write into reserved, for future removal */
+ state.v1 = seed + PRIME64_1 + PRIME64_2;
+ state.v2 = seed + PRIME64_2;
+ state.v3 = seed + 0;
+ state.v4 = seed - PRIME64_1;
+ memcpy(statePtr, &state, sizeof(state));
+ return XXH_OK;
+}
+
+FORCE_INLINE GF_XXH_errorcode XXH64_update_endian (GF_XXH64_state_t* state, const void* input, size_t len, XXH_endianess endian)
+{
+ const BYTE* p = (const BYTE*)input;
+ const BYTE* const bEnd = p + len;
+
+#ifdef XXH_ACCEPT_NULL_INPUT_POINTER
+ if (input==NULL) return XXH_ERROR;
+#endif
+
+ state->total_len += len;
+
+ if (state->memsize + len < 32) { /* fill in tmp buffer */
+ XXH_memcpy(((BYTE*)state->mem64) + state->memsize, input, len);
+ state->memsize += (U32)len;
+ return XXH_OK;
+ }
+
+ if (state->memsize) { /* tmp buffer is full */
+ XXH_memcpy(((BYTE*)state->mem64) + state->memsize, input, 32-state->memsize);
+ state->v1 = XXH64_round(state->v1, XXH_readLE64(state->mem64+0, endian));
+ state->v2 = XXH64_round(state->v2, XXH_readLE64(state->mem64+1, endian));
+ state->v3 = XXH64_round(state->v3, XXH_readLE64(state->mem64+2, endian));
+ state->v4 = XXH64_round(state->v4, XXH_readLE64(state->mem64+3, endian));
+ p += 32-state->memsize;
+ state->memsize = 0;
+ }
+
+ if (p+32 <= bEnd) {
+ const BYTE* const limit = bEnd - 32;
+ U64 v1 = state->v1;
+ U64 v2 = state->v2;
+ U64 v3 = state->v3;
+ U64 v4 = state->v4;
+
+ do {
+ v1 = XXH64_round(v1, XXH_readLE64(p, endian)); p+=8;
+ v2 = XXH64_round(v2, XXH_readLE64(p, endian)); p+=8;
+ v3 = XXH64_round(v3, XXH_readLE64(p, endian)); p+=8;
+ v4 = XXH64_round(v4, XXH_readLE64(p, endian)); p+=8;
+ } while (p<=limit);
+
+ state->v1 = v1;
+ state->v2 = v2;
+ state->v3 = v3;
+ state->v4 = v4;
+ }
+
+ if (p < bEnd) {
+ XXH_memcpy(state->mem64, p, (size_t)(bEnd-p));
+ state->memsize = (unsigned)(bEnd-p);
+ }
+
+ return XXH_OK;
+}
+
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH64_update (GF_XXH64_state_t* state_in, const void* input, size_t len)
+{
+ XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
+
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH64_update_endian(state_in, input, len, XXH_littleEndian);
+ else
+ return XXH64_update_endian(state_in, input, len, XXH_bigEndian);
+}
+
+FORCE_INLINE U64 XXH64_digest_endian (const GF_XXH64_state_t* state, XXH_endianess endian)
+{
+ const BYTE * p = (const BYTE*)state->mem64;
+ const BYTE* const bEnd = (const BYTE*)state->mem64 + state->memsize;
+ U64 h64;
+
+ if (state->total_len >= 32) {
+ U64 const v1 = state->v1;
+ U64 const v2 = state->v2;
+ U64 const v3 = state->v3;
+ U64 const v4 = state->v4;
+
+ h64 = XXH_rotl64(v1, 1) + XXH_rotl64(v2, 7) + XXH_rotl64(v3, 12) + XXH_rotl64(v4, 18);
+ h64 = XXH64_mergeRound(h64, v1);
+ h64 = XXH64_mergeRound(h64, v2);
+ h64 = XXH64_mergeRound(h64, v3);
+ h64 = XXH64_mergeRound(h64, v4);
+ } else {
+ h64 = state->v3 + PRIME64_5;
+ }
+
+ h64 += (U64) state->total_len;
+
+ while (p+8<=bEnd) {
+ U64 const k1 = XXH64_round(0, XXH_readLE64(p, endian));
+ h64 ^= k1;
+ h64 = XXH_rotl64(h64,27) * PRIME64_1 + PRIME64_4;
+ p+=8;
+ }
+
+ if (p+4<=bEnd) {
+ h64 ^= (U64)(XXH_readLE32(p, endian)) * PRIME64_1;
+ h64 = XXH_rotl64(h64, 23) * PRIME64_2 + PRIME64_3;
+ p+=4;
+ }
+
+ while (p<bEnd) {
+ h64 ^= (*p) * PRIME64_5;
+ h64 = XXH_rotl64(h64, 11) * PRIME64_1;
+ p++;
+ }
+
+ h64 ^= h64 >> 33;
+ h64 *= PRIME64_2;
+ h64 ^= h64 >> 29;
+ h64 *= PRIME64_3;
+ h64 ^= h64 >> 32;
+
+ return h64;
+}
+
+XXH_PUBLIC_API unsigned long long GF_XXH64_digest (const GF_XXH64_state_t* state_in)
+{
+ XXH_endianess endian_detected = (XXH_endianess)XXH_CPU_LITTLE_ENDIAN;
+
+ if ((endian_detected==XXH_littleEndian) || XXH_FORCE_NATIVE_FORMAT)
+ return XXH64_digest_endian(state_in, XXH_littleEndian);
+ else
+ return XXH64_digest_endian(state_in, XXH_bigEndian);
+}
+
+
+/*====== Canonical representation ======*/
+
+XXH_PUBLIC_API void GF_XXH64_canonicalFromHash(GF_XXH64_canonical_t* dst, GF_XXH64_hash_t hash)
+{
+ XXH_STATIC_ASSERT(sizeof(GF_XXH64_canonical_t) == sizeof(GF_XXH64_hash_t));
+ if (XXH_CPU_LITTLE_ENDIAN) hash = XXH_swap64(hash);
+ memcpy(dst, &hash, sizeof(*dst));
+}
+
+XXH_PUBLIC_API GF_XXH64_hash_t GF_XXH64_hashFromCanonical(const GF_XXH64_canonical_t* src)
+{
+ return XXH_readBE64(src);
+}
+
+#endif /* XXH_NO_LONG_LONG */
diff --git a/contrib/xxhash/xxhash.h b/contrib/xxhash/xxhash.h
new file mode 100644
index 00000000000..98352b9018e
--- /dev/null
+++ b/contrib/xxhash/xxhash.h
@@ -0,0 +1,301 @@
+/*
+ xxHash - Extremely Fast Hash algorithm
+ Header File
+ Copyright (C) 2012-2016, 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 :
+ - xxHash source repository : https://github.com/Cyan4973/xxHash
+*/
+
+/* Notice extracted from xxHash homepage :
+
+xxHash is an extremely fast Hash algorithm, running at RAM speed limits.
+It also successfully passes all tests from the SMHasher suite.
+
+Comparison (single thread, Windows Seven 32 bits, using SMHasher on a Core 2 Duo @3GHz)
+
+Name Speed Q.Score Author
+xxHash 5.4 GB/s 10
+CrapWow 3.2 GB/s 2 Andrew
+MumurHash 3a 2.7 GB/s 10 Austin Appleby
+SpookyHash 2.0 GB/s 10 Bob Jenkins
+SBox 1.4 GB/s 9 Bret Mulvey
+Lookup3 1.2 GB/s 9 Bob Jenkins
+SuperFastHash 1.2 GB/s 1 Paul Hsieh
+CityHash64 1.05 GB/s 10 Pike & Alakuijala
+FNV 0.55 GB/s 5 Fowler, Noll, Vo
+CRC32 0.43 GB/s 9
+MD5-32 0.33 GB/s 10 Ronald L. Rivest
+SHA1-32 0.28 GB/s 10
+
+Q.Score is a measure of quality of the hash function.
+It depends on successfully passing SMHasher test set.
+10 is a perfect score.
+
+A 64-bits version, named XXH64, is available since r35.
+It offers much better speed, but for 64-bits applications only.
+Name Speed on 64 bits Speed on 32 bits
+XXH64 13.8 GB/s 1.9 GB/s
+XXH32 6.8 GB/s 6.0 GB/s
+*/
+
+#ifndef XXHASH_H_5627135585666179
+#define XXHASH_H_5627135585666179 1
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+
+/* ****************************
+* Compiler specifics
+******************************/
+#if !(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) /* ! C99 */
+# define restrict /* disable restrict */
+#endif
+
+
+/* ****************************
+* Definitions
+******************************/
+#include <stddef.h> /* size_t */
+typedef enum { XXH_OK=0, XXH_ERROR } GF_XXH_errorcode;
+
+
+/* ****************************
+* API modifier
+******************************/
+/** XXH_PRIVATE_API
+* This is useful to include xxhash functions in `static` mode
+* in order to inline them, and remove their symbol from the public list.
+* Methodology :
+* #define XXH_PRIVATE_API
+* #include "xxhash.h"
+* `xxhash.c` is automatically included.
+* It's not useful to compile and link it as a separate module.
+*/
+#ifdef XXH_PRIVATE_API
+# ifndef XXH_STATIC_LINKING_ONLY
+# define XXH_STATIC_LINKING_ONLY
+# endif
+# if defined(__GNUC__)
+# define XXH_PUBLIC_API static __inline __attribute__((unused))
+# elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
+# define XXH_PUBLIC_API static inline
+# elif defined(_MSC_VER)
+# define XXH_PUBLIC_API static __inline
+# else
+# define XXH_PUBLIC_API static /* this version may generate warnings for unused static functions; disable the relevant warning */
+# endif
+#else
+# define XXH_PUBLIC_API /* do nothing */
+#endif /* XXH_PRIVATE_API */
+
+/*!XXH_NAMESPACE, aka Namespace Emulation :
+
+If you want to include _and expose_ xxHash functions from within your own library,
+but also want to avoid symbol collisions with other libraries which may also include xxHash,
+
+you can use XXH_NAMESPACE, to automatically prefix any public symbol from xxhash library
+with the value of XXH_NAMESPACE (therefore, avoid NULL and numeric values).
+
+Note that no change is required within the calling program as long as it includes `xxhash.h` :
+regular symbol name will be automatically translated by this header.
+*/
+#ifdef XXH_NAMESPACE
+# define XXH_CAT(A,B) A##B
+# define XXH_NAME2(A,B) XXH_CAT(A,B)
+# define GF_XXH_versionNumber XXH_NAME2(XXH_NAMESPACE, GF_XXH_versionNumber)
+# define GF_XXH32 XXH_NAME2(XXH_NAMESPACE, GF_XXH32)
+# define GF_XXH32_createState XXH_NAME2(XXH_NAMESPACE, GF_XXH32_createState)
+# define GF_XXH32_freeState XXH_NAME2(XXH_NAMESPACE, GF_XXH32_freeState)
+# define GF_XXH32_reset XXH_NAME2(XXH_NAMESPACE, GF_XXH32_reset)
+# define GF_XXH32_update XXH_NAME2(XXH_NAMESPACE, GF_XXH32_update)
+# define GF_XXH32_digest XXH_NAME2(XXH_NAMESPACE, GF_XXH32_digest)
+# define GF_XXH32_copyState XXH_NAME2(XXH_NAMESPACE, GF_XXH32_copyState)
+# define GF_XXH32_canonicalFromHash XXH_NAME2(XXH_NAMESPACE, GF_XXH32_canonicalFromHash)
+# define GF_XXH32_hashFromCanonical XXH_NAME2(XXH_NAMESPACE, GF_XXH32_hashFromCanonical)
+# define GF_XXH64 XXH_NAME2(XXH_NAMESPACE, GF_XXH64)
+# define GF_XXH64_createState XXH_NAME2(XXH_NAMESPACE, GF_XXH64_createState)
+# define GF_XXH64_freeState XXH_NAME2(XXH_NAMESPACE, GF_XXH64_freeState)
+# define GF_XXH64_reset XXH_NAME2(XXH_NAMESPACE, GF_XXH64_reset)
+# define GF_XXH64_update XXH_NAME2(XXH_NAMESPACE, GF_XXH64_update)
+# define GF_XXH64_digest XXH_NAME2(XXH_NAMESPACE, GF_XXH64_digest)
+# define GF_XXH64_copyState XXH_NAME2(XXH_NAMESPACE, GF_XXH64_copyState)
+# define GF_XXH64_canonicalFromHash XXH_NAME2(XXH_NAMESPACE, GF_XXH64_canonicalFromHash)
+# define GF_XXH64_hashFromCanonical XXH_NAME2(XXH_NAMESPACE, GF_XXH64_hashFromCanonical)
+#endif
+
+
+/* *************************************
+* Version
+***************************************/
+#define XXH_VERSION_MAJOR 0
+#define XXH_VERSION_MINOR 6
+#define XXH_VERSION_RELEASE 2
+#define XXH_VERSION_NUMBER (XXH_VERSION_MAJOR *100*100 + XXH_VERSION_MINOR *100 + XXH_VERSION_RELEASE)
+XXH_PUBLIC_API unsigned GF_XXH_versionNumber (void);
+
+
+/*-**********************************************************************
+* 32-bits hash
+************************************************************************/
+typedef unsigned int GF_XXH32_hash_t;
+
+/*! XXH32() :
+ Calculate the 32-bits hash of sequence "length" bytes stored at memory address "input".
+ The memory between input & input+length must be valid (allocated and read-accessible).
+ "seed" can be used to alter the result predictably.
+ Speed on Core 2 Duo @ 3 GHz (single thread, SMHasher benchmark) : 5.4 GB/s */
+XXH_PUBLIC_API GF_XXH32_hash_t GF_XXH32 (const void* input, size_t length, unsigned int seed);
+
+/*====== Streaming ======*/
+typedef struct XXH32_state_s GF_XXH32_state_t; /* incomplete type */
+XXH_PUBLIC_API GF_XXH32_state_t* GF_XXH32_createState(void);
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH32_freeState(GF_XXH32_state_t* statePtr);
+XXH_PUBLIC_API void GF_XXH32_copyState(GF_XXH32_state_t* restrict dst_state, const GF_XXH32_state_t* restrict src_state);
+
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH32_reset (GF_XXH32_state_t* statePtr, unsigned int seed);
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH32_update (GF_XXH32_state_t* statePtr, const void* input, size_t length);
+XXH_PUBLIC_API GF_XXH32_hash_t GF_XXH32_digest (const GF_XXH32_state_t* statePtr);
+
+/*
+These functions generate the xxHash of an input provided in multiple segments.
+Note that, for small input, they are slower than single-call functions, due to state management.
+For small input, prefer `XXH32()` and `XXH64()` .
+
+XXH state must first be allocated, using XXH*_createState() .
+
+Start a new hash by initializing state with a seed, using XXH*_reset().
+
+Then, feed the hash state by calling XXH*_update() as many times as necessary.
+Obviously, input must be allocated and read accessible.
+The function returns an error code, with 0 meaning OK, and any other value meaning there is an error.
+
+Finally, a hash value can be produced anytime, by using XXH*_digest().
+This function returns the nn-bits hash as an int or long long.
+
+It's still possible to continue inserting input into the hash state after a digest,
+and generate some new hashes later on, by calling again XXH*_digest().
+
+When done, free XXH state space if it was allocated dynamically.
+*/
+
+/*====== Canonical representation ======*/
+
+typedef struct { unsigned char digest[4]; } GF_XXH32_canonical_t;
+XXH_PUBLIC_API void GF_XXH32_canonicalFromHash(GF_XXH32_canonical_t* dst, GF_XXH32_hash_t hash);
+XXH_PUBLIC_API GF_XXH32_hash_t GF_XXH32_hashFromCanonical(const GF_XXH32_canonical_t* src);
+
+/* Default result type for XXH functions are primitive unsigned 32 and 64 bits.
+* The canonical representation uses human-readable write convention, aka big-endian (large digits first).
+* These functions allow transformation of hash result into and from its canonical format.
+* This way, hash values can be written into a file / memory, and remain comparable on different systems and programs.
+*/
+
+
+#ifndef XXH_NO_LONG_LONG
+/*-**********************************************************************
+* 64-bits hash
+************************************************************************/
+typedef unsigned long long GF_XXH64_hash_t;
+
+/*! XXH64() :
+ Calculate the 64-bits hash of sequence of length "len" stored at memory address "input".
+ "seed" can be used to alter the result predictably.
+ This function runs faster on 64-bits systems, but slower on 32-bits systems (see benchmark).
+*/
+XXH_PUBLIC_API GF_XXH64_hash_t GF_XXH64 (const void* input, size_t length, unsigned long long seed);
+
+/*====== Streaming ======*/
+typedef struct XXH64_state_s GF_XXH64_state_t; /* incomplete type */
+XXH_PUBLIC_API GF_XXH64_state_t* GF_XXH64_createState(void);
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH64_freeState(GF_XXH64_state_t* statePtr);
+XXH_PUBLIC_API void GF_XXH64_copyState(GF_XXH64_state_t* restrict dst_state, const GF_XXH64_state_t* restrict src_state);
+
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH64_reset (GF_XXH64_state_t* statePtr, unsigned long long seed);
+XXH_PUBLIC_API GF_XXH_errorcode GF_XXH64_update (GF_XXH64_state_t* statePtr, const void* input, size_t length);
+XXH_PUBLIC_API GF_XXH64_hash_t GF_XXH64_digest (const GF_XXH64_state_t* statePtr);
+
+/*====== Canonical representation ======*/
+typedef struct { unsigned char digest[8]; } GF_XXH64_canonical_t;
+XXH_PUBLIC_API void GF_XXH64_canonicalFromHash(GF_XXH64_canonical_t* dst, GF_XXH64_hash_t hash);
+XXH_PUBLIC_API GF_XXH64_hash_t GF_XXH64_hashFromCanonical(const GF_XXH64_canonical_t* src);
+#endif /* XXH_NO_LONG_LONG */
+
+
+#ifdef XXH_STATIC_LINKING_ONLY
+
+/* ================================================================================================
+ This section contains definitions which are not guaranteed to remain stable.
+ They may change in future versions, becoming incompatible with a different version of the library.
+ They shall only be used with static linking.
+ Never use these definitions in association with dynamic linking !
+=================================================================================================== */
+
+/* These definitions are only meant to allow allocation of XXH state
+ statically, on stack, or in a struct for example.
+ Do not use members directly. */
+
+ struct XXH32_state_s {
+ unsigned total_len_32;
+ unsigned large_len;
+ unsigned v1;
+ unsigned v2;
+ unsigned v3;
+ unsigned v4;
+ unsigned mem32[4]; /* buffer defined as U32 for alignment */
+ unsigned memsize;
+ unsigned reserved; /* never read nor write, will be removed in a future version */
+ }; /* typedef'd to XXH32_state_t */
+
+#ifndef XXH_NO_LONG_LONG
+ struct XXH64_state_s {
+ unsigned long long total_len;
+ unsigned long long v1;
+ unsigned long long v2;
+ unsigned long long v3;
+ unsigned long long v4;
+ unsigned long long mem64[4]; /* buffer defined as U64 for alignment */
+ unsigned memsize;
+ unsigned reserved[2]; /* never read nor write, will be removed in a future version */
+ }; /* typedef'd to XXH64_state_t */
+#endif
+
+# ifdef XXH_PRIVATE_API
+# include "xxhash.c" /* include xxhash function bodies as `static`, for inlining */
+# endif
+
+#endif /* XXH_STATIC_LINKING_ONLY */
+
+
+#if defined (__cplusplus)
+}
+#endif
+
+#endif /* XXHASH_H_5627135585666179 */
diff --git a/contrib/xxhash/xxhsum.c b/contrib/xxhash/xxhsum.c
new file mode 100644
index 00000000000..0148e3c4566
--- /dev/null
+++ b/contrib/xxhash/xxhsum.c
@@ -0,0 +1,1238 @@
+/*
+* xxhsum - Command line interface for xxhash algorithms
+* Copyright (C) Yann Collet 2012-2016
+*
+* GPL v2 License
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License along
+* with this program; if not, write to the Free Software Foundation, Inc.,
+* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*
+* You can contact the author at :
+* - xxHash homepage : http://www.xxhash.com
+* - xxHash source repository : https://github.com/Cyan4973/xxHash
+*/
+
+/* xxhsum :
+ * Provides hash value of a file content, or a list of files, or stdin
+ * Display convention is Big Endian, for both 32 and 64 bits algorithms
+ */
+
+#ifndef XXHASH_C_2097394837
+#define XXHASH_C_2097394837
+
+/* ************************************
+* Compiler Options
+**************************************/
+/* MS Visual */
+#if defined(_MSC_VER) || defined(_WIN32)
+# define _CRT_SECURE_NO_WARNINGS /* removes visual warnings */
+#endif
+
+/* Under Linux at least, pull in the *64 commands */
+#ifndef _LARGEFILE64_SOURCE
+# define _LARGEFILE64_SOURCE
+#endif
+
+
+/* ************************************
+* Includes
+**************************************/
+#include <stdlib.h> /* malloc */
+#include <stdio.h> /* fprintf, fopen, ftello64, fread, stdin, stdout; when present : _fileno */
+#include <string.h> /* strcmp */
+#include <sys/types.h> /* stat64 */
+#include <sys/stat.h> /* stat64 */
+#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
+
+#define XXH_STATIC_LINKING_ONLY /* *_state_t */
+#include "xxhash.h"
+
+
+/*-************************************
+* OS-Specific Includes
+**************************************/
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
+# include <fcntl.h> /* _O_BINARY */
+# include <io.h> /* _setmode, _isatty */
+# ifdef __MINGW32__
+ int _fileno(FILE *stream); /* MINGW somehow forgets to include this windows declaration into <stdio.h> */
+# endif
+# define SET_BINARY_MODE(file) _setmode(_fileno(file), _O_BINARY)
+# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
+#else
+# include <unistd.h> /* isatty, STDIN_FILENO */
+# define SET_BINARY_MODE(file)
+# define IS_CONSOLE(stdStream) isatty(STDIN_FILENO)
+#endif
+
+#if !defined(S_ISREG)
+# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
+#endif
+
+
+/* ************************************
+* Basic Types
+**************************************/
+#ifndef MEM_MODULE
+# define MEM_MODULE
+# if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
+# include <stdint.h>
+ 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
+#endif
+
+static unsigned BMK_isLittleEndian(void)
+{
+ const union { U32 u; BYTE c[4]; } one = { 1 }; /* don't use static : performance detrimental */
+ return one.c[0];
+}
+
+
+/* *************************************
+* Constants
+***************************************/
+#define LIB_VERSION XXH_VERSION_MAJOR.XXH_VERSION_MINOR.XXH_VERSION_RELEASE
+#define QUOTE(str) #str
+#define EXPAND_AND_QUOTE(str) QUOTE(str)
+#define PROGRAM_VERSION EXPAND_AND_QUOTE(LIB_VERSION)
+static const int g_nbBits = (int)(sizeof(void*)*8);
+static const char g_lename[] = "little endian";
+static const char g_bename[] = "big endian";
+#define ENDIAN_NAME (BMK_isLittleEndian() ? g_lename : g_bename)
+static const char author[] = "Yann Collet";
+#define WELCOME_MESSAGE(exename) "%s %s (%i-bits %s), by %s \n", exename, PROGRAM_VERSION, g_nbBits, ENDIAN_NAME, author
+
+#define NBLOOPS 3 /* Default number of benchmark iterations */
+#define TIMELOOP_S 1
+#define TIMELOOP (TIMELOOP_S * CLOCKS_PER_SEC) /* Minimum timing per iteration */
+#define XXHSUM32_DEFAULT_SEED 0 /* Default seed for algo_xxh32 */
+#define XXHSUM64_DEFAULT_SEED 0 /* Default seed for algo_xxh64 */
+
+#define KB *( 1<<10)
+#define MB *( 1<<20)
+#define GB *(1U<<30)
+
+#define MAX_MEM (2 GB - 64 MB)
+
+static const char stdinName[] = "-";
+typedef enum { algo_xxh32, algo_xxh64 } algoType;
+static const algoType g_defaultAlgo = algo_xxh64; /* required within main() & usage() */
+
+/* <16 hex char> <SPC> <SPC> <filename> <'\0'>
+ * '4096' is typical Linux PATH_MAX configuration. */
+#define DEFAULT_LINE_LENGTH (sizeof(GF_XXH64_hash_t) * 2 + 2 + 4096 + 1)
+
+/* Maximum acceptable line length. */
+#define MAX_LINE_LENGTH (32 KB)
+
+
+/* ************************************
+* Display macros
+**************************************/
+#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+#define DISPLAYRESULT(...) fprintf(stdout, __VA_ARGS__)
+#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) DISPLAY(__VA_ARGS__);
+static U32 g_displayLevel = 1;
+
+
+/* ************************************
+* Local variables
+**************************************/
+static size_t g_sampleSize = 100 KB;
+static U32 g_nbIterations = NBLOOPS;
+
+
+/* ************************************
+* Benchmark Functions
+**************************************/
+static clock_t BMK_clockSpan( clock_t start )
+{
+ return clock() - start; /* works even if overflow; Typical max span ~ 30 mn */
+}
+
+
+static size_t BMK_findMaxMem(U64 requiredMem)
+{
+ size_t const step = 64 MB;
+ void* testmem = NULL;
+
+ requiredMem = (((requiredMem >> 26) + 1) << 26);
+ requiredMem += 2*step;
+ if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
+
+ while (!testmem) {
+ if (requiredMem > step) requiredMem -= step;
+ else requiredMem >>= 1;
+ testmem = malloc ((size_t)requiredMem);
+ }
+ free (testmem);
+
+ /* keep some space available */
+ if (requiredMem > step) requiredMem -= step;
+ else requiredMem >>= 1;
+
+ return (size_t)requiredMem;
+}
+
+
+static U64 BMK_GetFileSize(const char* infilename)
+{
+ int r;
+#if defined(_MSC_VER)
+ struct _stat64 statbuf;
+ r = _stat64(infilename, &statbuf);
+#else
+ struct stat statbuf;
+ r = stat(infilename, &statbuf);
+#endif
+ if (r || !S_ISREG(statbuf.st_mode)) return 0; /* No good... */
+ return (U64)statbuf.st_size;
+}
+
+typedef U32 (*hashFunction)(const void* buffer, size_t bufferSize, U32 seed);
+
+static U32 localXXH32(const void* buffer, size_t bufferSize, U32 seed) { return GF_XXH32(buffer, bufferSize, seed); }
+
+static U32 localXXH64(const void* buffer, size_t bufferSize, U32 seed) { return (U32)GF_XXH64(buffer, bufferSize, seed); }
+
+static void BMK_benchHash(hashFunction h, const char* hName, const void* buffer, size_t bufferSize)
+{
+ static const U32 nbh_perloop = 100;
+ U32 iterationNb;
+ double fastestH = 100000000.;
+
+ DISPLAY("\r%79s\r", ""); /* Clean display line */
+ if (g_nbIterations<1) g_nbIterations=1;
+ for (iterationNb = 1; iterationNb <= g_nbIterations; iterationNb++) {
+ U32 nbHashes = 0, r=0;
+ clock_t cStart;
+
+ DISPLAY("%1i-%-17.17s : %10u ->\r", iterationNb, hName, (U32)bufferSize);
+ cStart = clock();
+ while (clock() == cStart); /* starts clock() at its exact beginning */
+ cStart = clock();
+
+ while (BMK_clockSpan(cStart) < TIMELOOP) {
+ U32 i;
+ for (i=0; i<nbh_perloop; i++)
+ r += h(buffer, bufferSize, i);
+ nbHashes += nbh_perloop;
+ }
+ if (r==0) DISPLAY(".\r"); /* need to do something with r to avoid compiler optimizing away the hash function */
+ { double const timeS = ((double)BMK_clockSpan(cStart) / CLOCKS_PER_SEC) / nbHashes;
+ if (timeS < fastestH) fastestH = timeS;
+ DISPLAY("%1i-%-17.17s : %10u -> %7.1f MB/s\r", iterationNb, hName, (U32)bufferSize, ((double)bufferSize / (1<<20)) / fastestH );
+ }
+ }
+ DISPLAY("%-19.19s : %10u -> %7.1f MB/s \n", hName, (U32)bufferSize, ((double)bufferSize / (1<<20)) / fastestH);
+}
+
+
+/* Note : buffer is supposed malloc'ed, hence aligned */
+static void BMK_benchMem(const void* buffer, size_t bufferSize)
+{
+ /* XXH32 bench */
+ BMK_benchHash(localXXH32, "XXH32", buffer, bufferSize);
+
+ /* Bench XXH32 on Unaligned input */
+ if (bufferSize>1)
+ BMK_benchHash(localXXH32, "XXH32 unaligned", ((const char*)buffer)+1, bufferSize-1);
+
+ /* Bench XXH64 */
+ BMK_benchHash(localXXH64, "XXH64", buffer, bufferSize);
+
+ /* Bench XXH64 on Unaligned input */
+ if (bufferSize>1)
+ BMK_benchHash(localXXH64, "XXH64 unaligned", ((const char*)buffer)+1, bufferSize-1);
+}
+
+
+static size_t BMK_selectBenchedSize(const char* fileName)
+{ U64 const inFileSize = BMK_GetFileSize(fileName);
+ size_t benchedSize = (size_t) BMK_findMaxMem(inFileSize);
+ if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
+ if (benchedSize < inFileSize) {
+ DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", fileName, (int)(benchedSize>>20));
+ }
+ return benchedSize;
+}
+
+
+static int BMK_benchFiles(const char** fileNamesTable, int nbFiles)
+{
+ int fileIdx;
+ for (fileIdx=0; fileIdx<nbFiles; fileIdx++) {
+ const char* const inFileName = fileNamesTable[fileIdx];
+ FILE* const inFile = fopen( inFileName, "rb" );
+ size_t const benchedSize = BMK_selectBenchedSize(inFileName);
+ char* const buffer = (char*)malloc(benchedSize+16);
+ void* const alignedBuffer = (buffer+15) - (((size_t)(buffer+15)) & 0xF); /* align on next 16 bytes boundaries */
+
+ /* Checks */
+ if ((inFile==NULL) || (inFileName==NULL)) {
+ DISPLAY( "Pb opening %s\n", inFileName);
+ free(buffer);
+ return 11;
+ }
+ if(!buffer) {
+ DISPLAY("\nError: not enough memory!\n");
+ fclose(inFile);
+ return 12;
+ }
+
+ /* Fill input buffer */
+ DISPLAY("\rLoading %s... \n", inFileName);
+ { size_t const readSize = fread(alignedBuffer, 1, benchedSize, inFile);
+ fclose(inFile);
+ if(readSize != benchedSize) {
+ DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
+ free(buffer);
+ return 13;
+ } }
+
+ /* bench */
+ BMK_benchMem(alignedBuffer, benchedSize);
+
+ free(buffer);
+ }
+
+ return 0;
+}
+
+
+
+static int BMK_benchInternal(void)
+{
+ size_t const benchedSize = g_sampleSize;
+ void* const buffer = malloc(benchedSize);
+ if(!buffer) {
+ DISPLAY("\nError: not enough memory!\n");
+ return 12;
+ }
+
+ /* bench */
+ DISPLAY("\rSample of %u KB... \n", (U32)(benchedSize >> 10));
+ BMK_benchMem(buffer, benchedSize);
+
+ free(buffer);
+ return 0;
+}
+
+
+static void BMK_checkResult(U32 r1, U32 r2)
+{
+ static int nbTests = 1;
+ if (r1==r2) DISPLAY("\rTest%3i : %08X == %08X ok ", nbTests, r1, r2);
+ else {
+ DISPLAY("\rERROR : Test%3i : %08X <> %08X !!!!! \n", nbTests, r1, r2);
+ exit(1);
+ }
+ nbTests++;
+}
+
+
+static void BMK_checkResult64(U64 r1, U64 r2)
+{
+ static int nbTests = 1;
+ if (r1!=r2) {
+ DISPLAY("\rERROR : Test%3i : 64-bits values non equals !!!!! \n", nbTests);
+ DISPLAY("\r %08X%08X != %08X%08X \n", (U32)(r1>>32), (U32)r1, (U32)(r2>>32), (U32)r2);
+ exit(1);
+ }
+ nbTests++;
+}
+
+
+static void BMK_testSequence64(void* sentence, size_t len, U64 seed, U64 Nresult)
+{
+ GF_XXH64_state_t state;
+ U64 Dresult;
+ size_t pos;
+
+ Dresult = GF_XXH64(sentence, len, seed);
+ BMK_checkResult64(Dresult, Nresult);
+
+ GF_XXH64_reset(&state, seed);
+ GF_XXH64_update(&state, sentence, len);
+ Dresult = GF_XXH64_digest(&state);
+ BMK_checkResult64(Dresult, Nresult);
+
+ GF_XXH64_reset(&state, seed);
+ for (pos=0; pos<len; pos++) GF_XXH64_update(&state, ((char*)sentence)+pos, 1);
+ Dresult = GF_XXH64_digest(&state);
+ BMK_checkResult64(Dresult, Nresult);
+}
+
+
+static void BMK_testSequence(const void* sequence, size_t len, U32 seed, U32 Nresult)
+{
+ GF_XXH32_state_t state;
+ U32 Dresult;
+ size_t pos;
+
+ Dresult = GF_XXH32(sequence, len, seed);
+ BMK_checkResult(Dresult, Nresult);
+
+ GF_XXH32_reset(&state, seed);
+ GF_XXH32_update(&state, sequence, len);
+ Dresult = GF_XXH32_digest(&state);
+ BMK_checkResult(Dresult, Nresult);
+
+ GF_XXH32_reset(&state, seed);
+ for (pos=0; pos<len; pos++) GF_XXH32_update(&state, ((const char*)sequence)+pos, 1);
+ Dresult = GF_XXH32_digest(&state);
+ BMK_checkResult(Dresult, Nresult);
+}
+
+
+#define SANITY_BUFFER_SIZE 101
+static void BMK_sanityCheck(void)
+{
+ static const U32 prime = 2654435761U;
+ BYTE sanityBuffer[SANITY_BUFFER_SIZE];
+ U32 byteGen = prime;
+
+ int i;
+ for (i=0; i<SANITY_BUFFER_SIZE; i++) {
+ sanityBuffer[i] = (BYTE)(byteGen>>24);
+ byteGen *= byteGen;
+ }
+
+ BMK_testSequence(NULL, 0, 0, 0x02CC5D05);
+ BMK_testSequence(NULL, 0, prime, 0x36B78AE7);
+ BMK_testSequence(sanityBuffer, 1, 0, 0xB85CBEE5);
+ BMK_testSequence(sanityBuffer, 1, prime, 0xD5845D64);
+ BMK_testSequence(sanityBuffer, 14, 0, 0xE5AA0AB4);
+ BMK_testSequence(sanityBuffer, 14, prime, 0x4481951D);
+ BMK_testSequence(sanityBuffer, SANITY_BUFFER_SIZE, 0, 0x1F1AA412);
+ BMK_testSequence(sanityBuffer, SANITY_BUFFER_SIZE, prime, 0x498EC8E2);
+
+ BMK_testSequence64(NULL , 0, 0, 0xEF46DB3751D8E999ULL);
+ BMK_testSequence64(NULL , 0, prime, 0xAC75FDA2929B17EFULL);
+ BMK_testSequence64(sanityBuffer, 1, 0, 0x4FCE394CC88952D8ULL);
+ BMK_testSequence64(sanityBuffer, 1, prime, 0x739840CB819FA723ULL);
+ BMK_testSequence64(sanityBuffer, 14, 0, 0xCFFA8DB881BC3A3DULL);
+ BMK_testSequence64(sanityBuffer, 14, prime, 0x5B9611585EFCC9CBULL);
+ BMK_testSequence64(sanityBuffer, SANITY_BUFFER_SIZE, 0, 0x0EAB543384F878ADULL);
+ BMK_testSequence64(sanityBuffer, SANITY_BUFFER_SIZE, prime, 0xCAA65939306F1E21ULL);
+
+ DISPLAY("\r%79s\r", ""); /* Clean display line */
+ DISPLAYLEVEL(2, "Sanity check -- all tests ok\n");
+}
+
+
+/* ********************************************************
+* File Hashing
+**********************************************************/
+
+static void BMK_display_LittleEndian(const void* ptr, size_t length)
+{
+ const BYTE* p = (const BYTE*)ptr;
+ size_t idx;
+ for (idx=length-1; idx<length; idx--) /* intentional underflow to negative to detect end */
+ DISPLAYRESULT("%02x", p[idx]);
+}
+
+static void BMK_display_BigEndian(const void* ptr, size_t length)
+{
+ const BYTE* p = (const BYTE*)ptr;
+ size_t idx;
+ for (idx=0; idx<length; idx++)
+ DISPLAYRESULT("%02x", p[idx]);
+}
+
+static void BMK_hashStream(void* xxhHashValue, const algoType hashType, FILE* inFile, void* buffer, size_t blockSize)
+{
+ GF_XXH64_state_t state64;
+ GF_XXH32_state_t state32;
+ size_t readSize;
+
+ /* Init */
+ GF_XXH32_reset(&state32, XXHSUM32_DEFAULT_SEED);
+ GF_XXH64_reset(&state64, XXHSUM64_DEFAULT_SEED);
+
+ /* Load file & update hash */
+ readSize = 1;
+ while (readSize) {
+ readSize = fread(buffer, 1, blockSize, inFile);
+ switch(hashType)
+ {
+ case algo_xxh32:
+ GF_XXH32_update(&state32, buffer, readSize);
+ break;
+ case algo_xxh64:
+ GF_XXH64_update(&state64, buffer, readSize);
+ break;
+ default:
+ break;
+ }
+ }
+
+ switch(hashType)
+ {
+ case algo_xxh32:
+ { U32 const h32 = GF_XXH32_digest(&state32);
+ memcpy(xxhHashValue, &h32, sizeof(h32));
+ break;
+ }
+ case algo_xxh64:
+ { U64 const h64 = GF_XXH64_digest(&state64);
+ memcpy(xxhHashValue, &h64, sizeof(h64));
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+
+typedef enum { big_endian, little_endian} endianess;
+
+static int BMK_hash(const char* fileName,
+ const algoType hashType,
+ const endianess displayEndianess)
+{
+ FILE* inFile;
+ size_t const blockSize = 64 KB;
+ void* buffer;
+ U32 h32 = 0;
+ U64 h64 = 0;
+
+ /* Check file existence */
+ if (fileName == stdinName) {
+ inFile = stdin;
+ SET_BINARY_MODE(stdin);
+ }
+ else
+ inFile = fopen( fileName, "rb" );
+ if (inFile==NULL) {
+ DISPLAY( "Pb opening %s\n", fileName);
+ return 1;
+ }
+
+ /* Memory allocation & restrictions */
+ buffer = malloc(blockSize);
+ if(!buffer) {
+ DISPLAY("\nError: not enough memory!\n");
+ fclose(inFile);
+ return 1;
+ }
+
+ /* loading notification */
+ { const size_t fileNameSize = strlen(fileName);
+ const char* const fileNameEnd = fileName + fileNameSize;
+ const size_t maxInfoFilenameSize = fileNameSize > 30 ? 30 : fileNameSize;
+ size_t infoFilenameSize = 1;
+ while ( (infoFilenameSize < maxInfoFilenameSize)
+ &&(fileNameEnd[-1-infoFilenameSize] != '/')
+ &&(fileNameEnd[-1-infoFilenameSize] != '\\') )
+ infoFilenameSize++;
+ DISPLAY("\rLoading %s... \r", fileNameEnd - infoFilenameSize);
+ }
+
+ /* Load file & update hash */
+ switch(hashType)
+ {
+ case algo_xxh32:
+ BMK_hashStream(&h32, algo_xxh32, inFile, buffer, blockSize);
+ break;
+ case algo_xxh64:
+ BMK_hashStream(&h64, algo_xxh64, inFile, buffer, blockSize);
+ break;
+ default:
+ break;
+ }
+
+ fclose(inFile);
+ free(buffer);
+
+ /* display Hash */
+ switch(hashType)
+ {
+ case algo_xxh32:
+ { GF_XXH32_canonical_t hcbe32;
+ GF_XXH32_canonicalFromHash(&hcbe32, h32);
+ displayEndianess==big_endian ?
+ BMK_display_BigEndian(&hcbe32, sizeof(hcbe32)) : BMK_display_LittleEndian(&hcbe32, sizeof(hcbe32));
+ DISPLAYRESULT(" %s\n", fileName);
+ break;
+ }
+ case algo_xxh64:
+ { GF_XXH64_canonical_t hcbe64;
+ GF_XXH64_canonicalFromHash(&hcbe64, h64);
+ displayEndianess==big_endian ?
+ BMK_display_BigEndian(&hcbe64, sizeof(hcbe64)) : BMK_display_LittleEndian(&hcbe64, sizeof(hcbe64));
+ DISPLAYRESULT(" %s\n", fileName);
+ break;
+ }
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+
+static int BMK_hashFiles(const char** fnList, int fnTotal,
+ algoType hashType, endianess displayEndianess)
+{
+ int fnNb;
+ int result = 0;
+
+ if (fnTotal==0)
+ return BMK_hash(stdinName, hashType, displayEndianess);
+
+ for (fnNb=0; fnNb<fnTotal; fnNb++)
+ result += BMK_hash(fnList[fnNb], hashType, displayEndianess);
+ DISPLAY("\r%70s\r", "");
+ return result;
+}
+
+
+typedef enum {
+ GetLine_ok,
+ GetLine_eof,
+ GetLine_exceedMaxLineLength,
+ GetLine_outOfMemory,
+} GetLineResult;
+
+typedef enum {
+ CanonicalFromString_ok,
+ CanonicalFromString_invalidFormat,
+} CanonicalFromStringResult;
+
+typedef enum {
+ ParseLine_ok,
+ ParseLine_invalidFormat,
+} ParseLineResult;
+
+typedef enum {
+ LineStatus_hashOk,
+ LineStatus_hashFailed,
+ LineStatus_failedToOpen,
+} LineStatus;
+
+typedef union {
+ GF_XXH32_canonical_t xxh32;
+ GF_XXH64_canonical_t xxh64;
+} Canonical;
+
+typedef struct {
+ Canonical canonical;
+ const char* filename;
+ int xxhBits; /* canonical type : 32:xxh32, 64:xxh64 */
+} ParsedLine;
+
+typedef struct {
+ unsigned long nProperlyFormattedLines;
+ unsigned long nImproperlyFormattedLines;
+ unsigned long nMismatchedChecksums;
+ unsigned long nOpenOrReadFailures;
+ unsigned long nMixedFormatLines;
+ int xxhBits;
+ int quit;
+} ParseFileReport;
+
+typedef struct {
+ const char* inFileName;
+ FILE* inFile;
+ int lineMax;
+ char* lineBuf;
+ size_t blockSize;
+ char* blockBuf;
+ int strictMode;
+ int statusOnly;
+ int warn;
+ int quiet;
+ ParseFileReport report;
+} ParseFileArg;
+
+
+/* Read line from stream.
+ Returns GetLine_ok, if it reads line successfully.
+ Returns GetLine_eof, if stream reaches EOF.
+ Returns GetLine_exceedMaxLineLength, if line length is longer than MAX_LINE_LENGTH.
+ Returns GetLine_outOfMemory, if line buffer memory allocation failed.
+ */
+static GetLineResult getLine(char** lineBuf, int* lineMax, FILE* inFile)
+{
+ GetLineResult result = GetLine_ok;
+ int len = 0;
+
+ if (*lineBuf == NULL || *lineMax < 1) {
+ *lineMax = DEFAULT_LINE_LENGTH;
+ *lineBuf = (char*) realloc(*lineBuf, *lineMax);
+ if(*lineBuf == NULL) return GetLine_outOfMemory;
+ }
+
+ for (;;) {
+ const int c = fgetc(inFile);
+ if (c == EOF) {
+ /* If we meet EOF before first character, returns GetLine_eof,
+ * otherwise GetLine_ok.
+ */
+ if (len == 0) result = GetLine_eof;
+ break;
+ }
+
+ /* Make enough space for len+1 (for final NUL) bytes. */
+ if (len+1 >= *lineMax) {
+ char* newLineBuf = NULL;
+ int newBufSize = *lineMax;
+
+ newBufSize += (newBufSize/2) + 1; /* x 1.5 */
+ if (newBufSize > MAX_LINE_LENGTH) newBufSize = MAX_LINE_LENGTH;
+ if (len+1 >= newBufSize) return GetLine_exceedMaxLineLength;
+
+ newLineBuf = (char*) realloc(*lineBuf, newBufSize);
+ if (newLineBuf == NULL) return GetLine_outOfMemory;
+
+ *lineBuf = newLineBuf;
+ *lineMax = newBufSize;
+ }
+
+ if (c == '\n') break;
+ (*lineBuf)[len++] = (char) c;
+ }
+
+ (*lineBuf)[len] = '\0';
+ return result;
+}
+
+
+/* Converts one hexadecimal character to integer.
+ * Returns -1, if given character is not hexadecimal.
+ */
+static int charToHex(char c)
+{
+ int result = -1;
+ if (c >= '0' && c <= '9') {
+ result = (int) (c - '0');
+ } else if (c >= 'A' && c <= 'F') {
+ result = (int) (c - 'A') + 0x0a;
+ } else if (c >= 'a' && c <= 'f') {
+ result = (int) (c - 'a') + 0x0a;
+ }
+ return result;
+}
+
+
+/* Converts XXH32 canonical hexadecimal string hashStr to big endian unsigned char array dst.
+ * Returns CANONICAL_FROM_STRING_INVALID_FORMAT, if hashStr is not well formatted.
+ * Returns CANONICAL_FROM_STRING_OK, if hashStr is parsed successfully.
+ */
+static CanonicalFromStringResult canonicalFromString(unsigned char* dst,
+ size_t dstSize,
+ const char* hashStr)
+{
+ size_t i;
+ for (i = 0; i < dstSize; ++i) {
+ int h0, h1;
+
+ h0 = charToHex(hashStr[i*2 + 0]);
+ if (h0 < 0) return CanonicalFromString_invalidFormat;
+
+ h1 = charToHex(hashStr[i*2 + 1]);
+ if (h1 < 0) return CanonicalFromString_invalidFormat;
+
+ dst[i] = (unsigned char) ((h0 << 4) | h1);
+ }
+ return CanonicalFromString_ok;
+}
+
+
+/* Parse single line of xxHash checksum file.
+ * Returns PARSE_LINE_ERROR_INVALID_FORMAT, if line is not well formatted.
+ * Returns PARSE_LINE_OK if line is parsed successfully.
+ * And members of parseLine will be filled by parsed values.
+ *
+ * - line must be ended with '\0'.
+ * - Since parsedLine.filename will point within given argument `line`,
+ * users must keep `line`s content during they are using parsedLine.
+ *
+ * Given xxHash checksum line should have the following format:
+ *
+ * <8 or 16 hexadecimal char> <space> <space> <filename...> <'\0'>
+ */
+static ParseLineResult parseLine(ParsedLine* parsedLine, const char* line)
+{
+ const char* const firstSpace = strchr(line, ' ');
+ const char* const secondSpace = firstSpace + 1;
+
+ parsedLine->filename = NULL;
+ parsedLine->xxhBits = 0;
+
+ if (firstSpace == NULL || *secondSpace != ' ') return ParseLine_invalidFormat;
+
+ switch (firstSpace - line)
+ {
+ case 8:
+ { GF_XXH32_canonical_t* xxh32c = &parsedLine->canonical.xxh32;
+ if (canonicalFromString(xxh32c->digest, sizeof(xxh32c->digest), line)
+ != CanonicalFromString_ok) {
+ return ParseLine_invalidFormat;
+ }
+ parsedLine->xxhBits = 32;
+ break;
+ }
+
+ case 16:
+ { GF_XXH64_canonical_t* xxh64c = &parsedLine->canonical.xxh64;
+ if (canonicalFromString(xxh64c->digest, sizeof(xxh64c->digest), line)
+ != CanonicalFromString_ok) {
+ return ParseLine_invalidFormat;
+ }
+ parsedLine->xxhBits = 64;
+ break;
+ }
+
+ default:
+ return ParseLine_invalidFormat;
+ break;
+ }
+
+ parsedLine->filename = secondSpace + 1;
+ return ParseLine_ok;
+}
+
+
+/*! Parse xxHash checksum file.
+ */
+static void parseFile1(ParseFileArg* parseFileArg)
+{
+ const char* const inFileName = parseFileArg->inFileName;
+ ParseFileReport* const report = &parseFileArg->report;
+
+ unsigned long lineNumber = 0;
+ memset(report, 0, sizeof(*report));
+
+ while (!report->quit) {
+ FILE* fp = NULL;
+ LineStatus lineStatus = LineStatus_hashFailed;
+ GetLineResult getLineResult;
+ ParsedLine parsedLine;
+ memset(&parsedLine, 0, sizeof(parsedLine));
+
+ lineNumber++;
+ if (lineNumber == 0) {
+ /* This is unlikely happen, but md5sum.c has this
+ * error check. */
+ DISPLAY("%s : too many checksum lines\n", inFileName);
+ report->quit = 1;
+ break;
+ }
+
+ getLineResult = getLine(&parseFileArg->lineBuf, &parseFileArg->lineMax,
+ parseFileArg->inFile);
+ if (getLineResult != GetLine_ok) {
+ if (getLineResult == GetLine_eof) break;
+
+ switch (getLineResult)
+ {
+ case GetLine_ok:
+ case GetLine_eof:
+ /* These cases never happen. See above getLineResult related "if"s.
+ They exist just for make gcc's -Wswitch-enum happy. */
+ break;
+
+ default:
+ DISPLAY("%s : %lu: unknown error\n", inFileName, lineNumber);
+ break;
+
+ case GetLine_exceedMaxLineLength:
+ DISPLAY("%s : %lu: too long line\n", inFileName, lineNumber);
+ break;
+
+ case GetLine_outOfMemory:
+ DISPLAY("%s : %lu: out of memory\n", inFileName, lineNumber);
+ break;
+ }
+ report->quit = 1;
+ break;
+ }
+
+ if (parseLine(&parsedLine, parseFileArg->lineBuf) != ParseLine_ok) {
+ report->nImproperlyFormattedLines++;
+ if (parseFileArg->warn) {
+ DISPLAY("%s : %lu: improperly formatted XXHASH checksum line\n"
+ , inFileName, lineNumber);
+ }
+ continue;
+ }
+
+ if (report->xxhBits != 0 && report->xxhBits != parsedLine.xxhBits) {
+ /* Don't accept xxh32/xxh64 mixed file */
+ report->nImproperlyFormattedLines++;
+ report->nMixedFormatLines++;
+ if (parseFileArg->warn) {
+ DISPLAY("%s : %lu: improperly formatted XXHASH checksum line (XXH32/64)\n"
+ , inFileName, lineNumber);
+ }
+ continue;
+ }
+
+ report->nProperlyFormattedLines++;
+ if (report->xxhBits == 0) {
+ report->xxhBits = parsedLine.xxhBits;
+ }
+
+ fp = fopen(parsedLine.filename, "rb");
+ if (fp == NULL) {
+ lineStatus = LineStatus_failedToOpen;
+ } else {
+ lineStatus = LineStatus_hashFailed;
+ switch (parsedLine.xxhBits)
+ {
+ case 32:
+ { GF_XXH32_hash_t xxh;
+ BMK_hashStream(&xxh, algo_xxh32, fp, parseFileArg->blockBuf, parseFileArg->blockSize);
+ if (xxh == GF_XXH32_hashFromCanonical(&parsedLine.canonical.xxh32)) {
+ lineStatus = LineStatus_hashOk;
+ } }
+ break;
+
+ case 64:
+ { GF_XXH64_hash_t xxh;
+ BMK_hashStream(&xxh, algo_xxh64, fp, parseFileArg->blockBuf, parseFileArg->blockSize);
+ if (xxh == GF_XXH64_hashFromCanonical(&parsedLine.canonical.xxh64)) {
+ lineStatus = LineStatus_hashOk;
+ } }
+ break;
+
+ default:
+ break;
+ }
+ fclose(fp);
+ }
+
+ switch (lineStatus)
+ {
+ default:
+ DISPLAY("%s : unknown error\n", inFileName);
+ report->quit = 1;
+ break;
+
+ case LineStatus_failedToOpen:
+ report->nOpenOrReadFailures++;
+ if (!parseFileArg->statusOnly) {
+ DISPLAYRESULT("%s : %lu: FAILED open or read %s\n"
+ , inFileName, lineNumber, parsedLine.filename);
+ }
+ break;
+
+ case LineStatus_hashOk:
+ case LineStatus_hashFailed:
+ { int b = 1;
+ if (lineStatus == LineStatus_hashOk) {
+ /* If --quiet is specified, don't display "OK" */
+ if (parseFileArg->quiet) b = 0;
+ } else {
+ report->nMismatchedChecksums++;
+ }
+
+ if (b && !parseFileArg->statusOnly) {
+ DISPLAYRESULT("%s: %s\n", parsedLine.filename
+ , lineStatus == LineStatus_hashOk ? "OK" : "FAILED");
+ } }
+ break;
+ }
+ } /* while (!report->quit) */
+}
+
+
+/* Parse xxHash checksum file.
+ * Returns 1, if all procedures were succeeded.
+ * Returns 0, if any procedures was failed.
+ *
+ * If strictMode != 0, return error code if any line is invalid.
+ * If statusOnly != 0, don't generate any output.
+ * If warn != 0, print a warning message to stderr.
+ * If quiet != 0, suppress "OK" line.
+ *
+ * "All procedures are succeeded" means:
+ * - Checksum file contains at least one line and less than SIZE_T_MAX lines.
+ * - All files are properly opened and read.
+ * - All hash values match with its content.
+ * - (strict mode) All lines in checksum file are consistent and well formatted.
+ *
+ */
+static int checkFile(const char* inFileName,
+ const endianess displayEndianess,
+ U32 strictMode,
+ U32 statusOnly,
+ U32 warn,
+ U32 quiet)
+{
+ int result = 0;
+ FILE* inFile = NULL;
+ ParseFileArg parseFileArgBody;
+ ParseFileArg* const parseFileArg = &parseFileArgBody;
+ ParseFileReport* const report = &parseFileArg->report;
+
+ if (displayEndianess != big_endian) {
+ /* Don't accept little endian */
+ DISPLAY( "Check file mode doesn't support little endian\n" );
+ return 0;
+ }
+
+ /* note : stdinName is special constant pointer. It is not a string. */
+ if (inFileName == stdinName) {
+ /* note : Since we expect text input for xxhash -c mode,
+ * Don't set binary mode for stdin */
+ inFile = stdin;
+ } else {
+ inFile = fopen( inFileName, "rt" );
+ }
+
+ if (inFile == NULL) {
+ DISPLAY( "Pb opening %s\n", inFileName);
+ return 0;
+ }
+
+ parseFileArg->inFileName = inFileName;
+ parseFileArg->inFile = inFile;
+ parseFileArg->lineMax = DEFAULT_LINE_LENGTH;
+ parseFileArg->lineBuf = (char*) malloc((size_t) parseFileArg->lineMax);
+ parseFileArg->blockSize = 64 * 1024;
+ parseFileArg->blockBuf = (char*) malloc(parseFileArg->blockSize);
+ parseFileArg->strictMode = strictMode;
+ parseFileArg->statusOnly = statusOnly;
+ parseFileArg->warn = warn;
+ parseFileArg->quiet = quiet;
+
+ parseFile1(parseFileArg);
+
+ free(parseFileArg->blockBuf);
+ free(parseFileArg->lineBuf);
+
+ if (inFile != stdin) fclose(inFile);
+
+ /* Show error/warning messages. All messages are copied from md5sum.c
+ */
+ if (report->nProperlyFormattedLines == 0) {
+ DISPLAY("%s: no properly formatted XXHASH checksum lines found\n", inFileName);
+ } else if (!statusOnly) {
+ if (report->nImproperlyFormattedLines) {
+ DISPLAYRESULT("%lu lines are improperly formatted\n"
+ , report->nImproperlyFormattedLines);
+ }
+ if (report->nOpenOrReadFailures) {
+ DISPLAYRESULT("%lu listed files could not be read\n"
+ , report->nOpenOrReadFailures);
+ }
+ if (report->nMismatchedChecksums) {
+ DISPLAYRESULT("%lu computed checksums did NOT match\n"
+ , report->nMismatchedChecksums);
+ } }
+
+ /* Result (exit) code logic is copied from
+ * gnu coreutils/src/md5sum.c digest_check() */
+ result = report->nProperlyFormattedLines != 0
+ && report->nMismatchedChecksums == 0
+ && report->nOpenOrReadFailures == 0
+ && (!strictMode || report->nImproperlyFormattedLines == 0)
+ && report->quit == 0;
+ return result;
+}
+
+
+static int checkFiles(const char** fnList, int fnTotal,
+ const endianess displayEndianess,
+ U32 strictMode,
+ U32 statusOnly,
+ U32 warn,
+ U32 quiet)
+{
+ int ok = 1;
+
+ /* Special case for stdinName "-",
+ * note: stdinName is not a string. It's special pointer. */
+ if (fnTotal==0) {
+ ok &= checkFile(stdinName, displayEndianess, strictMode, statusOnly, warn, quiet);
+ } else {
+ int fnNb;
+ for (fnNb=0; fnNb<fnTotal; fnNb++)
+ ok &= checkFile(fnList[fnNb], displayEndianess, strictMode, statusOnly, warn, quiet);
+ }
+ return ok ? 0 : 1;
+}
+
+
+/* ********************************************************
+* Main
+**********************************************************/
+
+static int usage(const char* exename)
+{
+ DISPLAY( WELCOME_MESSAGE(exename) );
+ DISPLAY( "Usage :\n");
+ DISPLAY( " %s [arg] [filenames]\n", exename);
+ DISPLAY( "When no filename provided, or - provided : use stdin as input\n");
+ DISPLAY( "Arguments :\n");
+ DISPLAY( " -H# : hash selection : 0=32bits, 1=64bits (default: %i)\n", (int)g_defaultAlgo);
+ DISPLAY( " -c : read xxHash sums from the [filenames] and check them\n");
+ DISPLAY( " -h : help \n");
+ return 0;
+}
+
+
+static int usage_advanced(const char* exename)
+{
+ usage(exename);
+ DISPLAY( "Advanced :\n");
+ DISPLAY( " --little-endian : hash printed using little endian convention (default: big endian)\n");
+ DISPLAY( " -V, --version : display version\n");
+ DISPLAY( " -h, --help : display long help and exit\n");
+ DISPLAY( " -b : benchmark mode \n");
+ DISPLAY( " -i# : number of iterations (benchmark mode; default %i)\n", g_nbIterations);
+ DISPLAY( "\n");
+ DISPLAY( "The following four options are useful only when verifying checksums (-c):\n");
+ DISPLAY( "--strict : don't print OK for each successfully verified file\n");
+ DISPLAY( "--status : don't output anything, status code shows success\n");
+ DISPLAY( "--quiet : exit non-zero for improperly formatted checksum lines\n");
+ DISPLAY( "--warn : warn about improperly formatted checksum lines\n");
+ return 0;
+}
+
+static int badusage(const char* exename)
+{
+ DISPLAY("Wrong parameters\n");
+ usage(exename);
+ return 1;
+}
+
+
+int main(int argc, const char** argv)
+{
+ int i, filenamesStart=0;
+ const char* const exename = argv[0];
+ U32 benchmarkMode = 0;
+ U32 fileCheckMode = 0;
+ U32 strictMode = 0;
+ U32 statusOnly = 0;
+ U32 warn = 0;
+ U32 quiet = 0;
+ algoType algo = g_defaultAlgo;
+ endianess displayEndianess = big_endian;
+
+ /* special case : xxh32sum default to 32 bits checksum */
+ if (strstr(exename, "xxh32sum") != NULL) algo = algo_xxh32;
+
+ for(i=1; i<argc; i++) {
+ const char* argument = argv[i];
+
+ if(!argument) continue; /* Protection, if argument empty */
+
+ if (!strcmp(argument, "--little-endian")) { displayEndianess = little_endian; continue; }
+ if (!strcmp(argument, "--check")) { fileCheckMode = 1; continue; }
+ if (!strcmp(argument, "--strict")) { strictMode = 1; continue; }
+ if (!strcmp(argument, "--status")) { statusOnly = 1; continue; }
+ if (!strcmp(argument, "--quiet")) { quiet = 1; continue; }
+ if (!strcmp(argument, "--warn")) { warn = 1; continue; }
+ if (!strcmp(argument, "--help")) { return usage_advanced(exename); }
+ if (!strcmp(argument, "--version")) { DISPLAY(WELCOME_MESSAGE(exename)); return 0; }
+
+ if (*argument!='-') {
+ if (filenamesStart==0) filenamesStart=i; /* only supports a continuous list of filenames */
+ continue;
+ }
+
+ /* command selection */
+ argument++; /* note : *argument=='-' */
+
+ while (*argument!=0) {
+ switch(*argument)
+ {
+ /* Display version */
+ case 'V':
+ DISPLAY(WELCOME_MESSAGE(exename)); return 0;
+
+ /* Display help on usage */
+ case 'h':
+ return usage_advanced(exename);
+
+ /* select hash algorithm */
+ case 'H':
+ algo = (algoType)(argument[1] - '0');
+ argument+=2;
+ break;
+
+ /* File check mode */
+ case 'c':
+ fileCheckMode=1;
+ argument++;
+ break;
+
+ /* Warning mode (file check mode only, alias of "--warning") */
+ case 'w':
+ warn=1;
+ argument++;
+ break;
+
+ /* Trigger benchmark mode */
+ case 'b':
+ argument++;
+ benchmarkMode=1;
+ break;
+
+ /* Modify Nb Iterations (benchmark only) */
+ case 'i':
+ g_nbIterations = argument[1] - '0';
+ argument+=2;
+ break;
+
+ /* Modify Block size (benchmark only) */
+ case 'B':
+ argument++;
+ g_sampleSize = 0;
+ while (argument[0]>='0' && argument[0]<='9')
+ g_sampleSize *= 10, g_sampleSize += argument[0]-'0', argument++;
+ break;
+
+ default:
+ return badusage(exename);
+ }
+ }
+ } /* for(i=1; i<argc; i++) */
+
+ /* Check benchmark mode */
+ if (benchmarkMode) {
+ DISPLAY( WELCOME_MESSAGE(exename) );
+ BMK_sanityCheck();
+ if (filenamesStart==0) return BMK_benchInternal();
+ return BMK_benchFiles(argv+filenamesStart, argc-filenamesStart);
+ }
+
+ /* Check if input is defined as console; trigger an error in this case */
+ if ( (filenamesStart==0) && IS_CONSOLE(stdin) ) return badusage(exename);
+
+ if (filenamesStart==0) filenamesStart = argc;
+ if (fileCheckMode) {
+ return checkFiles(argv+filenamesStart, argc-filenamesStart, displayEndianess, strictMode, statusOnly, warn, quiet);
+ } else {
+ return BMK_hashFiles(argv+filenamesStart, argc-filenamesStart, algo, displayEndianess);
+ }
+}
+
+#endif /* XXHASH_C_2097394837 */
diff --git a/libglusterfs/src/Makefile.am b/libglusterfs/src/Makefile.am
index 52b73166ddb..768fe042a10 100644
--- a/libglusterfs/src/Makefile.am
+++ b/libglusterfs/src/Makefile.am
@@ -9,7 +9,8 @@ libglusterfs_la_CPPFLAGS = $(GF_CPPFLAGS) -D__USE_FILE_OFFSET64 \
-I$(top_srcdir)/rpc/xdr/src/ -I$(top_builddir)/rpc/xdr/src/ \
-I$(top_srcdir)/rpc/rpc-lib/src/ -I$(CONTRIBDIR)/rbtree \
-I$(CONTRIBDIR)/libexecinfo ${ARGP_STANDALONE_CPPFLAGS} \
- -DSBIN_DIR=\"$(sbindir)\" -I$(CONTRIBDIR)/timer-wheel
+ -DSBIN_DIR=\"$(sbindir)\" -I$(CONTRIBDIR)/timer-wheel \
+ -I$(CONTRIBDIR)/xxhash
libglusterfs_la_LIBADD = @LEXLIB@ $(ZLIB_LIBS) $(MATH_LIB) $(UUID_LIBS)
libglusterfs_la_LDFLAGS = -version-info $(LIBGLUSTERFS_LT_VERSION)
@@ -33,6 +34,7 @@ libglusterfs_la_SOURCES = dict.c xlator.c logging.c \
$(CONTRIBDIR)/libexecinfo/execinfo.c quota-common-utils.c rot-buffs.c \
$(CONTRIBDIR)/timer-wheel/timer-wheel.c \
$(CONTRIBDIR)/timer-wheel/find_last_bit.c default-args.c locking.c \
+ $(CONTRIBDIR)/xxhash/xxhash.c \
compound-fop-utils.c throttle-tbf.c
nodist_libglusterfs_la_SOURCES = y.tab.c graph.lex.c defaults.c
@@ -62,6 +64,7 @@ noinst_HEADERS = unittest/unittest.h \
$(CONTRIBDIR)/mount/mntent_compat.h \
$(CONTRIBDIR)/libexecinfo/execinfo_compat.h \
$(CONTRIBDIR)/timer-wheel/timer-wheel.h \
+ $(CONTRIBDIR)/xxhash/xxhash.h \
tier-ctr-interface.h
if !HAVE_LIBUUID
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 65557fefba2..5015d9666b6 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -49,6 +49,7 @@
#include "lkowner.h"
#include "syscall.h"
#include "cli1-xdr.h"
+#include "xxhash.h"
#include <ifaddrs.h>
#include "libglusterfs-messages.h"
@@ -82,6 +83,23 @@ md5_wrapper(const unsigned char *data, size_t len, char *md5)
snprintf(md5 + i * 2, lim-i*2, "%02x", scratch[i]);
}
+void
+gf_xxh64_wrapper(const unsigned char *data, size_t len, unsigned long long seed,
+ char *xxh64)
+{
+ unsigned short i = 0;
+ unsigned short lim = GF_XXH64_DIGEST_LENGTH*2+1;
+ GF_XXH64_hash_t hash = 0;
+ GF_XXH64_canonical_t c_hash = {{0,},};
+ const uint8_t *p = (const uint8_t *) &c_hash;
+
+ hash = GF_XXH64(data, len, seed);
+ GF_XXH64_canonicalFromHash(&c_hash, hash);
+
+ for (i = 0; i < GF_XXH64_DIGEST_LENGTH; i++)
+ snprintf(xxh64 + i * 2, lim-i*2, "%02x", p[i]);
+}
+
/* works similar to mkdir(1) -p.
*/
int
diff --git a/libglusterfs/src/common-utils.h b/libglusterfs/src/common-utils.h
index 6bd24179592..c3c5ec77350 100644
--- a/libglusterfs/src/common-utils.h
+++ b/libglusterfs/src/common-utils.h
@@ -113,6 +113,9 @@ void trap (void);
/* Default value of signing waiting time to sign a file for bitrot */
#define SIGNING_TIMEOUT "120"
+/* xxhash */
+#define GF_XXH64_DIGEST_LENGTH 8
+
/* Shard */
#define GF_XATTR_SHARD_FILE_SIZE "trusted.glusterfs.shard.file-size"
#define SHARD_ROOT_GFID "be318638-e8a0-4c6d-977d-7a937aa84806"
@@ -823,6 +826,8 @@ int gf_get_hostname_from_ip (char *client_ip, char **hostname);
gf_boolean_t gf_is_local_addr (char *hostname);
gf_boolean_t gf_is_same_address (char *host1, char *host2);
void md5_wrapper(const unsigned char *data, size_t len, char *md5);
+void gf_xxh64_wrapper(const unsigned char *data, size_t len,
+ unsigned long long seed, char *xxh64);
int gf_set_timestamp (const char *src, const char* dest);
int gf_thread_create (pthread_t *thread, const pthread_attr_t *attr,
generated by cgit (git 2.34.1) at 2025-11-04 03:44:52 +0000