77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
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/*
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zstdhc - high compression variant
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Header File
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Copyright (C) 2015, Yann Collet.
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BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following disclaimer
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in the documentation and/or other materials provided with the
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distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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You can contact the author at :
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- zstd source repository : http://www.zstd.net
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*/
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#pragma once
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#if defined (__cplusplus)
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extern "C" {
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#endif
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/* *************************************
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* Includes
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***************************************/
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#include <stddef.h> /* size_t */
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/* *************************************
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* Simple function
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***************************************/
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/**
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ZSTD_HC_compress() :
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Compresses 'srcSize' bytes from buffer 'src' into buffer 'dst', of maximum size 'dstSize'.
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Destination buffer must be already allocated.
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Compression runs faster if maxDstSize >= ZSTD_compressBound(srcSize).
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@return : the number of bytes written into buffer 'dst'
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or an error code if it fails (which can be tested using ZSTD_isError())
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*/
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size_t ZSTD_HC_compress(void* dst, size_t maxDstSize,
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const void* src, size_t srcSize,
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unsigned compressionLevel);
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/* *************************************
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* Advanced functions
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***************************************/
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typedef struct ZSTD_HC_CCtx_s ZSTD_HC_CCtx; /* incomplete type */
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ZSTD_HC_CCtx* ZSTD_HC_createCCtx(void);
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size_t ZSTD_HC_freeCCtx(ZSTD_HC_CCtx* cctx);
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/**
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ZSTD_HC_compressCCtx() :
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Same as ZSTD_compress(), but requires a ZSTD_HC_CCtx working space already allocated
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*/
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size_t ZSTD_HC_compressCCtx(ZSTD_HC_CCtx* ctx, void* dst, size_t maxDstSize, const void* src, size_t srcSize, unsigned compressionLevel);
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#if defined (__cplusplus)
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}
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#endif
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