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author | Ruslan Kovalev <ruslan.a.kovalev@gmail.com> | 2022-02-10 16:46:44 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:44 +0300 |
commit | 59e19371de37995fcb36beb16cd6ec030af960bc (patch) | |
tree | fa68e36093ebff8b805462e9e6d331fe9d348214 /contrib/libs/zstd/lib/legacy/zstd_v02.h | |
parent | 89db6fe2fe2c32d2a832ddfeb04e8d078e301084 (diff) | |
download | ydb-59e19371de37995fcb36beb16cd6ec030af960bc.tar.gz |
Restoring authorship annotation for Ruslan Kovalev <ruslan.a.kovalev@gmail.com>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/zstd/lib/legacy/zstd_v02.h')
-rw-r--r-- | contrib/libs/zstd/lib/legacy/zstd_v02.h | 132 |
1 files changed, 66 insertions, 66 deletions
diff --git a/contrib/libs/zstd/lib/legacy/zstd_v02.h b/contrib/libs/zstd/lib/legacy/zstd_v02.h index 1b371953b7..d52d1d8b01 100644 --- a/contrib/libs/zstd/lib/legacy/zstd_v02.h +++ b/contrib/libs/zstd/lib/legacy/zstd_v02.h @@ -7,34 +7,34 @@ * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ - + #ifndef ZSTD_V02_H_4174539423 #define ZSTD_V02_H_4174539423 - -#if defined (__cplusplus) -extern "C" { -#endif - -/* ************************************* -* Includes -***************************************/ -#include <stddef.h> /* size_t */ - - -/* ************************************* -* Simple one-step function -***************************************/ -/** -ZSTDv02_decompress() : decompress ZSTD frames compliant with v0.2.x format - compressedSize : is the exact source size - maxOriginalSize : is the size of the 'dst' buffer, which must be already allocated. - It must be equal or larger than originalSize, otherwise decompression will fail. - return : the number of bytes decompressed into destination buffer (originalSize) - or an errorCode if it fails (which can be tested using ZSTDv01_isError()) -*/ -size_t ZSTDv02_decompress( void* dst, size_t maxOriginalSize, - const void* src, size_t compressedSize); - + +#if defined (__cplusplus) +extern "C" { +#endif + +/* ************************************* +* Includes +***************************************/ +#include <stddef.h> /* size_t */ + + +/* ************************************* +* Simple one-step function +***************************************/ +/** +ZSTDv02_decompress() : decompress ZSTD frames compliant with v0.2.x format + compressedSize : is the exact source size + maxOriginalSize : is the size of the 'dst' buffer, which must be already allocated. + It must be equal or larger than originalSize, otherwise decompression will fail. + return : the number of bytes decompressed into destination buffer (originalSize) + or an errorCode if it fails (which can be tested using ZSTDv01_isError()) +*/ +size_t ZSTDv02_decompress( void* dst, size_t maxOriginalSize, + const void* src, size_t compressedSize); + /** ZSTDv02_findFrameSizeInfoLegacy() : get the source length and decompressed bound of a ZSTD frame compliant with v0.2.x format srcSize : The size of the 'src' buffer, at least as large as the frame pointed to by 'src' @@ -49,45 +49,45 @@ void ZSTDv02_findFrameSizeInfoLegacy(const void *src, size_t srcSize, size_t* cSize, unsigned long long* dBound); /** -ZSTDv02_isError() : tells if the result of ZSTDv02_decompress() is an error -*/ -unsigned ZSTDv02_isError(size_t code); - - -/* ************************************* -* Advanced functions -***************************************/ -typedef struct ZSTDv02_Dctx_s ZSTDv02_Dctx; -ZSTDv02_Dctx* ZSTDv02_createDCtx(void); -size_t ZSTDv02_freeDCtx(ZSTDv02_Dctx* dctx); - -size_t ZSTDv02_decompressDCtx(void* ctx, - void* dst, size_t maxOriginalSize, - const void* src, size_t compressedSize); - -/* ************************************* -* Streaming functions -***************************************/ -size_t ZSTDv02_resetDCtx(ZSTDv02_Dctx* dctx); - -size_t ZSTDv02_nextSrcSizeToDecompress(ZSTDv02_Dctx* dctx); -size_t ZSTDv02_decompressContinue(ZSTDv02_Dctx* dctx, void* dst, size_t maxDstSize, const void* src, size_t srcSize); -/** - Use above functions alternatively. - ZSTD_nextSrcSizeToDecompress() tells how much bytes to provide as 'srcSize' to ZSTD_decompressContinue(). - ZSTD_decompressContinue() will use previous data blocks to improve compression if they are located prior to current block. - Result is the number of bytes regenerated within 'dst'. - It can be zero, which is not an error; it just means ZSTD_decompressContinue() has decoded some header. -*/ - -/* ************************************* -* Prefix - version detection -***************************************/ -#define ZSTDv02_magicNumber 0xFD2FB522 /* v0.2 */ - - -#if defined (__cplusplus) -} -#endif +ZSTDv02_isError() : tells if the result of ZSTDv02_decompress() is an error +*/ +unsigned ZSTDv02_isError(size_t code); + + +/* ************************************* +* Advanced functions +***************************************/ +typedef struct ZSTDv02_Dctx_s ZSTDv02_Dctx; +ZSTDv02_Dctx* ZSTDv02_createDCtx(void); +size_t ZSTDv02_freeDCtx(ZSTDv02_Dctx* dctx); + +size_t ZSTDv02_decompressDCtx(void* ctx, + void* dst, size_t maxOriginalSize, + const void* src, size_t compressedSize); + +/* ************************************* +* Streaming functions +***************************************/ +size_t ZSTDv02_resetDCtx(ZSTDv02_Dctx* dctx); + +size_t ZSTDv02_nextSrcSizeToDecompress(ZSTDv02_Dctx* dctx); +size_t ZSTDv02_decompressContinue(ZSTDv02_Dctx* dctx, void* dst, size_t maxDstSize, const void* src, size_t srcSize); +/** + Use above functions alternatively. + ZSTD_nextSrcSizeToDecompress() tells how much bytes to provide as 'srcSize' to ZSTD_decompressContinue(). + ZSTD_decompressContinue() will use previous data blocks to improve compression if they are located prior to current block. + Result is the number of bytes regenerated within 'dst'. + It can be zero, which is not an error; it just means ZSTD_decompressContinue() has decoded some header. +*/ + +/* ************************************* +* Prefix - version detection +***************************************/ +#define ZSTDv02_magicNumber 0xFD2FB522 /* v0.2 */ + + +#if defined (__cplusplus) +} +#endif #endif /* ZSTD_V02_H_4174539423 */ |