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Merge pull request #297 from borzunov/dev

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Export functions related to dictionary compression from DLL
This commit is contained in:
Yann Collet 2016-08-18 15:05:01 +02:00 committed by GitHub
commit a5dbf9f629
2 changed files with 17 additions and 4 deletions
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19
lib/dictBuilder/zdict.h
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@ -38,6 +38,19 @@
extern "C" { extern "C" {
#endif #endif
/*====== Export for Windows ======*/
/*!
* ZSTD_DLL_EXPORT :
* Enable exporting of functions when building a Windows DLL
*/
#if defined(_WIN32) && defined(ZSTD_DLL_EXPORT) && (ZSTD_DLL_EXPORT==1)
# define ZDICTLIB_API __declspec(dllexport)
#else
# define ZDICTLIB_API
#endif
/*! ZDICT_trainFromBuffer() : /*! ZDICT_trainFromBuffer() :
Train a dictionary from an array of samples. Train a dictionary from an array of samples.
Samples must be stored concatenated in a single flat buffer `samplesBuffer`, Samples must be stored concatenated in a single flat buffer `samplesBuffer`,
@ -50,13 +63,13 @@ extern "C" {
In general, it's recommended to provide a few thousands samples, but this can vary a lot. In general, it's recommended to provide a few thousands samples, but this can vary a lot.
It's recommended that total size of all samples be about ~x100 times the target size of dictionary. It's recommended that total size of all samples be about ~x100 times the target size of dictionary.
*/ */
size_t ZDICT_trainFromBuffer(void* dictBuffer, size_t dictBufferCapacity, ZDICTLIB_API size_t ZDICT_trainFromBuffer(void* dictBuffer, size_t dictBufferCapacity,
const void* samplesBuffer, const size_t* samplesSizes, unsigned nbSamples); const void* samplesBuffer, const size_t* samplesSizes, unsigned nbSamples);
/*====== Helper functions ======*/ /*====== Helper functions ======*/
unsigned ZDICT_isError(size_t errorCode); ZDICTLIB_API unsigned ZDICT_isError(size_t errorCode);
const char* ZDICT_getErrorName(size_t errorCode); ZDICTLIB_API const char* ZDICT_getErrorName(size_t errorCode);

2
lib/zstd.h
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@ -92,7 +92,7 @@ ZSTDLIB_API size_t ZSTD_compress( void* dst, size_t dstCapacity,
* Always ensure result fits within application's authorized limits ! * Always ensure result fits within application's authorized limits !
* Each application can set its own limits. * Each application can set its own limits.
* note 4 : when `return==0`, if precise failure cause is needed, use ZSTD_getFrameParams() to know more. */ * note 4 : when `return==0`, if precise failure cause is needed, use ZSTD_getFrameParams() to know more. */
unsigned long long ZSTD_getDecompressedSize(const void* src, size_t srcSize); ZSTDLIB_API unsigned long long ZSTD_getDecompressedSize(const void* src, size_t srcSize);
/*! ZSTD_decompress() : /*! ZSTD_decompress() :
`compressedSize` : must be the _exact_ size of compressed input, otherwise decompression will fail. `compressedSize` : must be the _exact_ size of compressed input, otherwise decompression will fail.