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made ZSTD_compress_generic() definition accessible

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note that the implementation is not done yet.
This commit is contained in:
Yann Collet
2017-05-12 13:46:49 -07:00
parent 33eb7ac6b6
commit db8e21d5a0
3 changed files with 10 additions and 11 deletions
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6
doc/zstd_manual.html
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@@ -574,13 +574,13 @@ size_t ZSTD_estimateDDictSize(size_t dictSize);
size_t ZSTD_CDict_setParameter(ZSTD_CDict* cdict, ZSTD_cParameter param, unsigned value); </b>/* Not ready yet ! */<b> size_t ZSTD_CDict_setParameter(ZSTD_CDict* cdict, ZSTD_cParameter param, unsigned value); </b>/* Not ready yet ! */<b>
size_t ZSTD_CDict_loadDictionary(ZSTD_CDict* cdict, const void* dict, size_t dictSize); </b>/* Not ready yet ! */<b> size_t ZSTD_CDict_loadDictionary(ZSTD_CDict* cdict, const void* dict, size_t dictSize); </b>/* Not ready yet ! */<b>
</b><p> Create a CDict object which is still mutable after creation. </b><p> Create a CDict object which is still mutable after creation.
It allows usage of ZSTD_CDict_setParameter(). It's the only one case allowing usage of ZSTD_CDict_setParameter().
Once all compression parameters are selected, Once all compression parameters are selected,
it's possible to load the target dictionary, using ZSTD_CDict_loadDictionary(). it's possible to load the target dictionary, using ZSTD_CDict_loadDictionary().
Dictionary content will be copied internally, except if ZSTD_p_refDictContent is used. Dictionary content will be copied internally (except if ZSTD_p_refDictContent is set).
After loading the dictionary, no more change is possible. After loading the dictionary, no more change is possible.
The only remaining operation is to free CDict object. The only remaining operation is to free CDict object.
Note : An unfinished CDict behaves the same as a NULL CDict when referenced into a CCtx. Note : An unfinished CDict behaves the same as a NULL CDict if referenced into a CCtx.
</p></pre><BR> </p></pre><BR>

6
lib/compress/zstd_compress.c
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@@ -2468,14 +2468,14 @@ static size_t ZSTD_compressBlock_internal(ZSTD_CCtx* zc, void* dst, size_t dstCa
} }
/*! ZSTD_compress_generic() : /*! ZSTD_compress_frameChunk() :
* Compress a chunk of data into one or multiple blocks. * Compress a chunk of data into one or multiple blocks.
* All blocks will be terminated, all input will be consumed. * All blocks will be terminated, all input will be consumed.
* Function will issue an error if there is not enough `dstCapacity` to hold the compressed content. * Function will issue an error if there is not enough `dstCapacity` to hold the compressed content.
* Frame is supposed already started (header already produced) * Frame is supposed already started (header already produced)
* @return : compressed size, or an error code * @return : compressed size, or an error code
*/ */
static size_t ZSTD_compress_generic (ZSTD_CCtx* cctx, static size_t ZSTD_compress_frameChunk (ZSTD_CCtx* cctx,
void* dst, size_t dstCapacity, void* dst, size_t dstCapacity,
const void* src, size_t srcSize, const void* src, size_t srcSize,
U32 lastFrameChunk) U32 lastFrameChunk)
@@ -2630,7 +2630,7 @@ static size_t ZSTD_compressContinue_internal (ZSTD_CCtx* cctx,
if (srcSize) { if (srcSize) {
size_t const cSize = frame ? size_t const cSize = frame ?
ZSTD_compress_generic (cctx, dst, dstCapacity, src, srcSize, lastFrameChunk) : ZSTD_compress_frameChunk (cctx, dst, dstCapacity, src, srcSize, lastFrameChunk) :
ZSTD_compressBlock_internal (cctx, dst, dstCapacity, src, srcSize); ZSTD_compressBlock_internal (cctx, dst, dstCapacity, src, srcSize);
if (ZSTD_isError(cSize)) return cSize; if (ZSTD_isError(cSize)) return cSize;
cctx->consumedSrcSize += srcSize; cctx->consumedSrcSize += srcSize;

9
lib/zstd.h
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@@ -688,13 +688,13 @@ ZSTDLIB_API size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx, const void* prefix, size
/*! ZSTD_CDict_createEmpty() : /*! ZSTD_CDict_createEmpty() :
* Create a CDict object which is still mutable after creation. * Create a CDict object which is still mutable after creation.
* It allows usage of ZSTD_CDict_setParameter(). * It's the only one case allowing usage of ZSTD_CDict_setParameter().
* Once all compression parameters are selected, * Once all compression parameters are selected,
* it's possible to load the target dictionary, using ZSTD_CDict_loadDictionary(). * it's possible to load the target dictionary, using ZSTD_CDict_loadDictionary().
* Dictionary content will be copied internally, except if ZSTD_p_refDictContent is used. * Dictionary content will be copied internally (except if ZSTD_p_refDictContent is set).
* After loading the dictionary, no more change is possible. * After loading the dictionary, no more change is possible.
* The only remaining operation is to free CDict object. * The only remaining operation is to free CDict object.
* Note : An unfinished CDict behaves the same as a NULL CDict when referenced into a CCtx. * Note : An unfinished CDict behaves the same as a NULL CDict if referenced into a CCtx.
*/ */
ZSTDLIB_API ZSTD_CDict* ZSTD_CDict_createEmpty(void); /* Not ready yet ! */ ZSTDLIB_API ZSTD_CDict* ZSTD_CDict_createEmpty(void); /* Not ready yet ! */
ZSTDLIB_API size_t ZSTD_CDict_setParameter(ZSTD_CDict* cdict, ZSTD_cParameter param, unsigned value); /* Not ready yet ! */ ZSTDLIB_API size_t ZSTD_CDict_setParameter(ZSTD_CDict* cdict, ZSTD_cParameter param, unsigned value); /* Not ready yet ! */
@@ -714,7 +714,6 @@ ZSTDLIB_API size_t ZSTD_CDict_loadDictionary(ZSTD_CDict* cdict, const void* dict
ZSTDLIB_API size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict); /* Not ready yet ! */ ZSTDLIB_API size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict); /* Not ready yet ! */
#if 0
// Target advanced compression API // Target advanced compression API
// Not ready yet !!! // Not ready yet !!!
@@ -749,9 +748,9 @@ ZSTDLIB_API size_t ZSTD_compress_generic (ZSTD_CCtx* cctx,
* It's allowed to change compression parameters after a reset. * It's allowed to change compression parameters after a reset.
* Any internal data not yet flushed is cancelled. * Any internal data not yet flushed is cancelled.
*/ */
// Not ready yet !!!
ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx); ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx);
#endif
/*--- Advanced decompression functions ---*/ /*--- Advanced decompression functions ---*/