Mercurial > public > mercurial-scm > hg
diff contrib/python-zstandard/zstd/common/xxhash.h @ 37495:b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
This was just released. It features a number of goodies. More info at
https://gregoryszorc.com/blog/2018/04/09/release-of-python-zstandard-0.9/.
The clang-format ignore list was updated to reflect the new source
of files.
The project contains a vendored copy of zstandard 1.3.4. The old
version was 1.1.3. One of the changes between those versions is that
zstandard is now dual licensed BSD + GPLv2 and the patent rights grant
has been removed. Good riddance.
The API should be backwards compatible. So no changes in core
should be needed. However, there were a number of changes in the
library that we'll want to adapt to. Those will be addressed in
subsequent commits.
Differential Revision: https://phab.mercurial-scm.org/D3198
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Mon, 09 Apr 2018 10:13:29 -0700 |
| parents | 2e484bdea8c4 |
| children |
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--- a/contrib/python-zstandard/zstd/common/xxhash.h Sun Apr 08 01:08:43 2018 +0200 +++ b/contrib/python-zstandard/zstd/common/xxhash.h Mon Apr 09 10:13:29 2018 -0700 @@ -64,16 +64,12 @@ XXH32 6.8 GB/s 6.0 GB/s */ -#ifndef XXHASH_H_5627135585666179 -#define XXHASH_H_5627135585666179 1 - #if defined (__cplusplus) extern "C" { #endif -#ifndef XXH_NAMESPACE -# define XXH_NAMESPACE ZSTD_ /* Zstandard specific */ -#endif +#ifndef XXHASH_H_5627135585666179 +#define XXHASH_H_5627135585666179 1 /* **************************** @@ -242,6 +238,11 @@ /* ************************** * Canonical representation ****************************/ +/* 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. +*/ typedef struct { unsigned char digest[4]; } XXH32_canonical_t; typedef struct { unsigned char digest[8]; } XXH64_canonical_t; @@ -251,14 +252,9 @@ XXH_PUBLIC_API XXH32_hash_t XXH32_hashFromCanonical(const XXH32_canonical_t* src); XXH_PUBLIC_API XXH64_hash_t XXH64_hashFromCanonical(const XXH64_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. -*/ +#endif /* XXHASH_H_5627135585666179 */ -#ifdef XXH_STATIC_LINKING_ONLY /* ================================================================================================ This section contains definitions which are not guaranteed to remain stable. @@ -266,6 +262,8 @@ They shall only be used with static linking. Never use these definitions in association with dynamic linking ! =================================================================================================== */ +#if defined(XXH_STATIC_LINKING_ONLY) && !defined(XXH_STATIC_H_3543687687345) +#define XXH_STATIC_H_3543687687345 /* These definitions are only meant to allow allocation of XXH state statically, on stack, or in a struct for example. @@ -299,11 +297,9 @@ # include "xxhash.c" /* include xxhash functions as `static`, for inlining */ # endif -#endif /* XXH_STATIC_LINKING_ONLY */ +#endif /* XXH_STATIC_LINKING_ONLY && XXH_STATIC_H_3543687687345 */ #if defined (__cplusplus) } #endif - -#endif /* XXHASH_H_5627135585666179 */