diff options
Diffstat (limited to 'lib/lz4frame.h')
| -rw-r--r-- | lib/lz4frame.h | 56 |
1 files changed, 36 insertions, 20 deletions
diff --git a/lib/lz4frame.h b/lib/lz4frame.h index 6a1f987..d1cfa0c 100644 --- a/lib/lz4frame.h +++ b/lib/lz4frame.h @@ -49,14 +49,30 @@ extern "C" { **************************************/ #include <stddef.h> /* size_t */ +/*-*************************************************************** +* Export parameters +*****************************************************************/ +/*! +* LZ4_DLL_EXPORT : +* Enable exporting of functions when building a Windows DLL +*/ +#if defined(_WIN32) +# if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1) +# define LZ4LIB_API __declspec(dllexport) +# else +# define LZ4LIB_API __declspec(dllimport) +# endif +#else +# define LZ4LIB_API +#endif /*-************************************ * Error management **************************************/ typedef size_t LZ4F_errorCode_t; -unsigned LZ4F_isError(LZ4F_errorCode_t code); -const char* LZ4F_getErrorName(LZ4F_errorCode_t code); /* return error code string; useful for debugging */ +LZ4LIB_API unsigned LZ4F_isError(LZ4F_errorCode_t code); +LZ4LIB_API const char* LZ4F_getErrorName(LZ4F_errorCode_t code); /* return error code string; useful for debugging */ /*-************************************ @@ -128,7 +144,7 @@ typedef struct { /*-********************************* * Simple compression function ***********************************/ -size_t LZ4F_compressFrameBound(size_t srcSize, const LZ4F_preferences_t* preferencesPtr); +LZ4LIB_API size_t LZ4F_compressFrameBound(size_t srcSize, const LZ4F_preferences_t* preferencesPtr); /*!LZ4F_compressFrame() : * Compress an entire srcBuffer into a valid LZ4 frame, as defined by specification v1.5.1 @@ -139,7 +155,7 @@ size_t LZ4F_compressFrameBound(size_t srcSize, const LZ4F_preferences_t* prefere * The result of the function is the number of bytes written into dstBuffer. * The function outputs an error code if it fails (can be tested using LZ4F_isError()) */ -size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_preferences_t* preferencesPtr); +LZ4LIB_API size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_preferences_t* preferencesPtr); @@ -156,8 +172,8 @@ typedef struct { /* Resource Management */ #define LZ4F_VERSION 100 -LZ4F_errorCode_t LZ4F_createCompressionContext(LZ4F_compressionContext_t* cctxPtr, unsigned version); -LZ4F_errorCode_t LZ4F_freeCompressionContext(LZ4F_compressionContext_t cctx); +LZ4LIB_API LZ4F_errorCode_t LZ4F_createCompressionContext(LZ4F_compressionContext_t* cctxPtr, unsigned version); +LZ4LIB_API LZ4F_errorCode_t LZ4F_freeCompressionContext(LZ4F_compressionContext_t cctx); /* LZ4F_createCompressionContext() : * The first thing to do is to create a compressionContext object, which will be used in all compression operations. * This is achieved using LZ4F_createCompressionContext(), which takes as argument a version and an LZ4F_preferences_t structure. @@ -170,7 +186,7 @@ LZ4F_errorCode_t LZ4F_freeCompressionContext(LZ4F_compressionContext_t cctx); /* Compression */ -size_t LZ4F_compressBegin(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const LZ4F_preferences_t* prefsPtr); +LZ4LIB_API size_t LZ4F_compressBegin(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const LZ4F_preferences_t* prefsPtr); /* LZ4F_compressBegin() : * will write the frame header into dstBuffer. * dstBuffer must be large enough to accommodate a header (dstMaxSize). Maximum header size is 15 bytes. @@ -179,7 +195,7 @@ size_t LZ4F_compressBegin(LZ4F_compressionContext_t cctx, void* dstBuffer, size_ * or an error code (can be tested using LZ4F_isError()) */ -size_t LZ4F_compressBound(size_t srcSize, const LZ4F_preferences_t* prefsPtr); +LZ4LIB_API size_t LZ4F_compressBound(size_t srcSize, const LZ4F_preferences_t* prefsPtr); /* LZ4F_compressBound() : * Provides the minimum size of Dst buffer given srcSize to handle worst case situations. * Different preferences can produce different results. @@ -187,7 +203,7 @@ size_t LZ4F_compressBound(size_t srcSize, const LZ4F_preferences_t* prefsPtr); * This function includes frame termination cost (4 bytes, or 8 if frame checksum is enabled) */ -size_t LZ4F_compressUpdate(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_compressOptions_t* cOptPtr); +LZ4LIB_API size_t LZ4F_compressUpdate(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_compressOptions_t* cOptPtr); /* LZ4F_compressUpdate() * LZ4F_compressUpdate() can be called repetitively to compress as much data as necessary. * The most important rule is that dstBuffer MUST be large enough (dstMaxSize) to ensure compression completion even in worst case. @@ -199,7 +215,7 @@ size_t LZ4F_compressUpdate(LZ4F_compressionContext_t cctx, void* dstBuffer, size * The function outputs an error code if it fails (can be tested using LZ4F_isError()) */ -size_t LZ4F_flush(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* cOptPtr); +LZ4LIB_API size_t LZ4F_flush(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* cOptPtr); /* LZ4F_flush() * Should you need to generate compressed data immediately, without waiting for the current block to be filled, * you can call LZ4_flush(), which will immediately compress any remaining data buffered within cctx. @@ -210,7 +226,7 @@ size_t LZ4F_flush(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMax * The function outputs an error code if it fails (can be tested using LZ4F_isError()) */ -size_t LZ4F_compressEnd(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* cOptPtr); +LZ4LIB_API size_t LZ4F_compressEnd(LZ4F_compressionContext_t cctx, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* cOptPtr); /* LZ4F_compressEnd() * When you want to properly finish the compressed frame, just call LZ4F_compressEnd(). * It will flush whatever data remained within compressionContext (like LZ4_flush()) @@ -245,8 +261,8 @@ typedef struct { * The result of LZ4F_freeDecompressionContext() is indicative of the current state of decompressionContext when being released. * That is, it should be == 0 if decompression has been completed fully and correctly. */ -LZ4F_errorCode_t LZ4F_createDecompressionContext(LZ4F_decompressionContext_t* dctxPtr, unsigned version); -LZ4F_errorCode_t LZ4F_freeDecompressionContext(LZ4F_decompressionContext_t dctx); +LZ4LIB_API LZ4F_errorCode_t LZ4F_createDecompressionContext(LZ4F_decompressionContext_t* dctxPtr, unsigned version); +LZ4LIB_API LZ4F_errorCode_t LZ4F_freeDecompressionContext(LZ4F_decompressionContext_t dctx); /*====== Decompression ======*/ @@ -263,9 +279,9 @@ LZ4F_errorCode_t LZ4F_freeDecompressionContext(LZ4F_decompressionContext_t dctx) * (typically, when there is not enough src bytes to fully decode the frame header) * Decompression is expected to resume from where it stopped (srcBuffer + *srcSizePtr) */ -size_t LZ4F_getFrameInfo(LZ4F_decompressionContext_t dctx, - LZ4F_frameInfo_t* frameInfoPtr, - const void* srcBuffer, size_t* srcSizePtr); +LZ4LIB_API size_t LZ4F_getFrameInfo(LZ4F_decompressionContext_t dctx, + LZ4F_frameInfo_t* frameInfoPtr, + const void* srcBuffer, size_t* srcSizePtr); /*!LZ4F_decompress() : * Call this function repetitively to regenerate data compressed within srcBuffer. @@ -291,10 +307,10 @@ size_t LZ4F_getFrameInfo(LZ4F_decompressionContext_t dctx, * * After a frame is fully decoded, dctx can be used again to decompress another frame. */ -size_t LZ4F_decompress(LZ4F_decompressionContext_t dctx, - void* dstBuffer, size_t* dstSizePtr, - const void* srcBuffer, size_t* srcSizePtr, - const LZ4F_decompressOptions_t* dOptPtr); +LZ4LIB_API size_t LZ4F_decompress(LZ4F_decompressionContext_t dctx, + void* dstBuffer, size_t* dstSizePtr, + const void* srcBuffer, size_t* srcSizePtr, + const LZ4F_decompressOptions_t* dOptPtr); |