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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2022-02-09 23:47:25 +0100 |
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| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2022-02-10 01:21:17 +0100 |
| commit | 1ef05f24e28938c7a0608b4c6b369094d1dccaa6 (patch) | |
| tree | 680a5b679c78cd999045abf207bfc7363aa1d9b9 /src/Common/lzma/LzFindMt.h | |
| parent | 302dc37fb9baa45c5864af533664c4139e209590 (diff) | |
| download | VeraCrypt-1ef05f24e28938c7a0608b4c6b369094d1dccaa6.tar.gz VeraCrypt-1ef05f24e28938c7a0608b4c6b369094d1dccaa6.zip | |
Windows: Reduce the size of installers by almost 50% by using LZMA compression instead of DEFLATE
Diffstat (limited to 'src/Common/lzma/LzFindMt.h')
| -rw-r--r-- | src/Common/lzma/LzFindMt.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/Common/lzma/LzFindMt.h b/src/Common/lzma/LzFindMt.h new file mode 100644 index 00000000..660b7244 --- /dev/null +++ b/src/Common/lzma/LzFindMt.h @@ -0,0 +1,109 @@ +/* LzFindMt.h -- multithreaded Match finder for LZ algorithms +2021-07-12 : Igor Pavlov : Public domain */ + +#ifndef __LZ_FIND_MT_H +#define __LZ_FIND_MT_H + +#include "LzFind.h" +#include "Threads.h" + +EXTERN_C_BEGIN + +typedef struct _CMtSync +{ + UInt32 numProcessedBlocks; + CThread thread; + UInt64 affinity; + + BoolInt wasCreated; + BoolInt needStart; + BoolInt csWasInitialized; + BoolInt csWasEntered; + + BoolInt exit; + BoolInt stopWriting; + + CAutoResetEvent canStart; + CAutoResetEvent wasStopped; + CSemaphore freeSemaphore; + CSemaphore filledSemaphore; + CCriticalSection cs; + // UInt32 numBlocks_Sent; +} CMtSync; + +typedef UInt32 * (*Mf_Mix_Matches)(void *p, UInt32 matchMinPos, UInt32 *distances); + +/* kMtCacheLineDummy must be >= size_of_CPU_cache_line */ +#define kMtCacheLineDummy 128 + +typedef void (*Mf_GetHeads)(const Byte *buffer, UInt32 pos, + UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads, const UInt32 *crc); + +typedef struct _CMatchFinderMt +{ + /* LZ */ + const Byte *pointerToCurPos; + UInt32 *btBuf; + const UInt32 *btBufPos; + const UInt32 *btBufPosLimit; + UInt32 lzPos; + UInt32 btNumAvailBytes; + + UInt32 *hash; + UInt32 fixedHashSize; + // UInt32 hash4Mask; + UInt32 historySize; + const UInt32 *crc; + + Mf_Mix_Matches MixMatchesFunc; + UInt32 failure_LZ_BT; // failure in BT transfered to LZ + // UInt32 failure_LZ_LZ; // failure in LZ tables + UInt32 failureBuf[1]; + // UInt32 crc[256]; + + /* LZ + BT */ + CMtSync btSync; + Byte btDummy[kMtCacheLineDummy]; + + /* BT */ + UInt32 *hashBuf; + UInt32 hashBufPos; + UInt32 hashBufPosLimit; + UInt32 hashNumAvail; + UInt32 failure_BT; + + + CLzRef *son; + UInt32 matchMaxLen; + UInt32 numHashBytes; + UInt32 pos; + const Byte *buffer; + UInt32 cyclicBufferPos; + UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */ + UInt32 cutValue; + + /* BT + Hash */ + CMtSync hashSync; + /* Byte hashDummy[kMtCacheLineDummy]; */ + + /* Hash */ + Mf_GetHeads GetHeadsFunc; + CMatchFinder *MatchFinder; + // CMatchFinder MatchFinder; +} CMatchFinderMt; + +// only for Mt part +void MatchFinderMt_Construct(CMatchFinderMt *p); +void MatchFinderMt_Destruct(CMatchFinderMt *p, ISzAllocPtr alloc); + +SRes MatchFinderMt_Create(CMatchFinderMt *p, UInt32 historySize, UInt32 keepAddBufferBefore, + UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ISzAllocPtr alloc); +void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder2 *vTable); + +/* call MatchFinderMt_InitMt() before IMatchFinder::Init() */ +SRes MatchFinderMt_InitMt(CMatchFinderMt *p); +void MatchFinderMt_ReleaseStream(CMatchFinderMt *p); + +EXTERN_C_END + +#endif |