diff options
Diffstat (limited to 'lib/lz4hc.h')
| -rw-r--r-- | lib/lz4hc.h | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/lib/lz4hc.h b/lib/lz4hc.h index 3d441fb6..e937acfe 100644 --- a/lib/lz4hc.h +++ b/lib/lz4hc.h @@ -1,7 +1,7 @@ /* LZ4 HC - High Compression Mode of LZ4 Header File - Copyright (C) 2011-2017, Yann Collet. + Copyright (C) 2011-2020, Yann Collet. BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php) Redistribution and use in source and binary forms, with or without @@ -198,14 +198,17 @@ LZ4LIB_API int LZ4_saveDictHC (LZ4_streamHC_t* streamHCPtr, char* safeBuffer, in #define LZ4HC_HASH_MASK (LZ4HC_HASHTABLESIZE - 1) +/* Never ever use these definitions directly ! + * Declare or allocate an LZ4_streamHC_t instead. +**/ typedef struct LZ4HC_CCtx_internal LZ4HC_CCtx_internal; struct LZ4HC_CCtx_internal { LZ4_u32 hashTable[LZ4HC_HASHTABLESIZE]; LZ4_u16 chainTable[LZ4HC_MAXD]; const LZ4_byte* end; /* next block here to continue on current prefix */ - const LZ4_byte* base; /* All index relative to this position */ - const LZ4_byte* dictBase; /* alternate base for extDict */ + const LZ4_byte* prefixStart; /* Indexes relative to this position */ + const LZ4_byte* dictStart; /* alternate reference for extDict */ LZ4_u32 dictLimit; /* below that point, need extDict */ LZ4_u32 lowLimit; /* below that point, no more dict */ LZ4_u32 nextToUpdate; /* index from which to continue dictionary update */ @@ -216,20 +219,15 @@ struct LZ4HC_CCtx_internal const LZ4HC_CCtx_internal* dictCtx; }; - -/* Do not use these definitions directly ! - * Declare or allocate an LZ4_streamHC_t instead. - */ -#define LZ4_STREAMHCSIZE 262200 /* static size, for inter-version compatibility */ -#define LZ4_STREAMHCSIZE_VOIDP (LZ4_STREAMHCSIZE / sizeof(void*)) +#define LZ4_STREAMHC_MINSIZE 262200 /* static size, for inter-version compatibility */ union LZ4_streamHC_u { - void* table[LZ4_STREAMHCSIZE_VOIDP]; + char minStateSize[LZ4_STREAMHC_MINSIZE]; LZ4HC_CCtx_internal internal_donotuse; }; /* previously typedef'd to LZ4_streamHC_t */ /* LZ4_streamHC_t : * This structure allows static allocation of LZ4 HC streaming state. - * This can be used to allocate statically, on state, or as part of a larger structure. + * This can be used to allocate statically on stack, or as part of a larger structure. * * Such state **must** be initialized using LZ4_initStreamHC() before first use. * @@ -244,7 +242,7 @@ union LZ4_streamHC_u { * Required before first use of a statically allocated LZ4_streamHC_t. * Before v1.9.0 : use LZ4_resetStreamHC() instead */ -LZ4LIB_API LZ4_streamHC_t* LZ4_initStreamHC (void* buffer, size_t size); +LZ4LIB_API LZ4_streamHC_t* LZ4_initStreamHC(void* buffer, size_t size); /*-************************************ @@ -272,9 +270,11 @@ LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_comp * LZ4_slideInputBufferHC() will truncate the history of the stream, rather * than preserve a window-sized chunk of history. */ +#if !defined(LZ4_STATIC_LINKING_ONLY_DISABLE_MEMORY_ALLOCATION) LZ4_DEPRECATED("use LZ4_createStreamHC() instead") LZ4LIB_API void* LZ4_createHC (const char* inputBuffer); -LZ4_DEPRECATED("use LZ4_saveDictHC() instead") LZ4LIB_API char* LZ4_slideInputBufferHC (void* LZ4HC_Data); LZ4_DEPRECATED("use LZ4_freeStreamHC() instead") LZ4LIB_API int LZ4_freeHC (void* LZ4HC_Data); +#endif +LZ4_DEPRECATED("use LZ4_saveDictHC() instead") LZ4LIB_API char* LZ4_slideInputBufferHC (void* LZ4HC_Data); LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_compressHC2_continue (void* LZ4HC_Data, const char* source, char* dest, int inputSize, int compressionLevel); LZ4_DEPRECATED("use LZ4_compress_HC_continue() instead") LZ4LIB_API int LZ4_compressHC2_limitedOutput_continue (void* LZ4HC_Data, const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel); LZ4_DEPRECATED("use LZ4_createStreamHC() instead") LZ4LIB_API int LZ4_sizeofStreamStateHC(void); @@ -305,7 +305,7 @@ LZ4LIB_API void LZ4_resetStreamHC (LZ4_streamHC_t* streamHCPtr, int compressionL * They should not be linked from DLL, * as there is no guarantee of API stability yet. * Prototypes will be promoted to "stable" status - * after successfull usage in real-life scenarios. + * after successful usage in real-life scenarios. ***************************************************/ #ifdef LZ4_HC_STATIC_LINKING_ONLY /* protection macro */ #ifndef LZ4_HC_SLO_098092834 |