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Add legacy mode in documentation

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This commit is contained in:
shakeelrao 2019-03-18 20:33:15 -07:00
parent 20aa1b455c
commit 0a3fa6f909
16 changed files with 39 additions and 7 deletions
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2
lib/decompress/zstd_decompress.c
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@ -518,7 +518,7 @@ size_t ZSTD_findFrameCompressedSize(const void *src, size_t srcSize)
/** ZSTD_decompressBound() :
* currently incompatible with legacy mode
* compatible with legacy mode
* `src` must point to the start of a ZSTD frame or a skippeable frame
* `srcSize` must be at least as large as the frame contained
* @return : the maximum decompressed size of the compressed source

2
lib/legacy/zstd_v01.c
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@ -2001,6 +2001,8 @@ size_t ZSTDv01_decompress(void* dst, size_t maxDstSize, const void* src, size_t
return ZSTDv01_decompressDCtx(&ctx, dst, maxDstSize, src, srcSize);
}
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;

2
lib/legacy/zstd_v01.h
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@ -42,6 +42,8 @@ size_t ZSTDv01_decompress( void* dst, size_t maxOriginalSize,
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv01_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

4
lib/legacy/zstd_v02.c
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@ -3314,7 +3314,9 @@ static size_t ZSTD_decompress(void* dst, size_t maxDstSize, const void* src, siz
return ZSTD_decompressDCtx(&ctx, dst, maxDstSize, src, srcSize);
}
MEM_STATIC void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;
*dBound = ZSTD_CONTENTSIZE_ERROR;

2
lib/legacy/zstd_v02.h
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@ -42,6 +42,8 @@ size_t ZSTDv02_decompress( void* dst, size_t maxOriginalSize,
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv02_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

2
lib/legacy/zstd_v03.c
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@ -2955,6 +2955,8 @@ static size_t ZSTD_decompress(void* dst, size_t maxDstSize, const void* src, siz
return ZSTD_decompressDCtx(&ctx, dst, maxDstSize, src, srcSize);
}
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
MEM_STATIC void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;

3
lib/legacy/zstd_v03.h
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@ -42,6 +42,9 @@ size_t ZSTDv03_decompress( void* dst, size_t maxOriginalSize,
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv03_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

4
lib/legacy/zstd_v04.c
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@ -3121,7 +3121,9 @@ static size_t ZSTD_decompress_usingDict(ZSTD_DCtx* ctx,
return op-ostart;
}
MEM_STATIC void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;
*dBound = ZSTD_CONTENTSIZE_ERROR;

2
lib/legacy/zstd_v04.h
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@ -42,6 +42,8 @@ size_t ZSTDv04_decompress( void* dst, size_t maxOriginalSize,
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv04_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

4
lib/legacy/zstd_v05.c
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@ -3510,7 +3510,9 @@ size_t ZSTDv05_decompress(void* dst, size_t maxDstSize, const void* src, size_t
#endif
}
MEM_STATIC void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;
*dBound = ZSTD_CONTENTSIZE_ERROR;

3
lib/legacy/zstd_v05.h
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@ -40,6 +40,9 @@ size_t ZSTDv05_decompress( void* dst, size_t dstCapacity,
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv05_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

4
lib/legacy/zstd_v06.c
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@ -3656,7 +3656,9 @@ size_t ZSTDv06_decompress(void* dst, size_t dstCapacity, const void* src, size_t
#endif
}
MEM_STATIC void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;
*dBound = ZSTD_CONTENTSIZE_ERROR;

3
lib/legacy/zstd_v06.h
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@ -49,6 +49,9 @@ ZSTDv06_findFrameSizeInfoLegacy() : get the source length and decompressed bound
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv06_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

4
lib/legacy/zstd_v07.c
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@ -3897,7 +3897,9 @@ size_t ZSTDv07_decompress(void* dst, size_t dstCapacity, const void* src, size_t
#endif
}
MEM_STATIC void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
/* ZSTD_errorFrameSizeInfoLegacy() :
assumes `cSize` and `dBound` are _not_ NULL */
static void ZSTD_errorFrameSizeInfoLegacy(size_t* cSize, unsigned long long* dBound, size_t ret)
{
*cSize = ret;
*dBound = ZSTD_CONTENTSIZE_ERROR;

3
lib/legacy/zstd_v07.h
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@ -56,6 +56,9 @@ ZSTDv07_findFrameSizeInfoLegacy() : get the source length and decompressed bound
or an errorCode if it fails (which can be tested using ZSTDv01_isError())
dBound (output paramter) : an upper-bound for the decompressed size of the data in the frame
or ZSTD_CONTENTSIZE_ERROR if an error occurs
note : assumes `cSize` and `dBound` are _not_ NULL.
*/
void ZSTDv07_findFrameSizeInfoLegacy(const void *src, size_t srcSize,
size_t* cSize, unsigned long long* dBound);

2
lib/zstd.h
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@ -1115,7 +1115,7 @@ ZSTDLIB_API unsigned long long ZSTD_findDecompressedSize(const void* src, size_t
* @return : - upper-bound for the decompressed size of all data in all successive frames
* - if an error occured: ZSTD_CONTENTSIZE_ERROR
*
* note 1 : an error can occur if `src` contains a legacy frame or an invalid/incorrectly formatted frame.
* note 1 : an error can occur if `src` contains an invalid or incorrectly formatted frame.
* note 2 : the upper-bound is exact when the decompressed size field is available in every ZSTD encoded frame of `src`.
* in this case, `ZSTD_findDecompressedSize` and `ZSTD_decompressBound` return the same value.
* note 3 : when the decompressed size field isn't available, the upper-bound for that frame is calculated by: