Alexander Suvorov
99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/* LzFindMt.h -- multithreaded Match finder for LZ algorithms
|
|
2008-10-04 : Igor Pavlov : Public domain */
|
|
|
|
#ifndef __LZFINDMT_H
|
|
#define __LZFINDMT_H
|
|
|
|
#include "lzma_Threads.h"
|
|
#include "lzma_LzFind.h"
|
|
|
|
namespace crnlib {
|
|
|
|
#define kMtHashBlockSize (1 << 13)
|
|
#define kMtHashNumBlocks (1 << 3)
|
|
#define kMtHashNumBlocksMask (kMtHashNumBlocks - 1)
|
|
|
|
#define kMtBtBlockSize (1 << 14)
|
|
#define kMtBtNumBlocks (1 << 6)
|
|
#define kMtBtNumBlocksMask (kMtBtNumBlocks - 1)
|
|
|
|
typedef struct _CMtSync {
|
|
Bool wasCreated;
|
|
Bool needStart;
|
|
Bool exit;
|
|
Bool stopWriting;
|
|
|
|
CThread thread;
|
|
CAutoResetEvent canStart;
|
|
CAutoResetEvent wasStarted;
|
|
CAutoResetEvent wasStopped;
|
|
CSemaphore freeSemaphore;
|
|
CSemaphore filledSemaphore;
|
|
Bool csWasInitialized;
|
|
Bool csWasEntered;
|
|
CCriticalSection cs;
|
|
UInt32 numProcessedBlocks;
|
|
} 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;
|
|
UInt32 btBufPos;
|
|
UInt32 btBufPosLimit;
|
|
UInt32 lzPos;
|
|
UInt32 btNumAvailBytes;
|
|
|
|
UInt32* hash;
|
|
UInt32 fixedHashSize;
|
|
UInt32 historySize;
|
|
const UInt32* crc;
|
|
|
|
Mf_Mix_Matches MixMatchesFunc;
|
|
|
|
/* LZ + BT */
|
|
CMtSync btSync;
|
|
Byte btDummy[kMtCacheLineDummy];
|
|
|
|
/* BT */
|
|
UInt32* hashBuf;
|
|
UInt32 hashBufPos;
|
|
UInt32 hashBufPosLimit;
|
|
UInt32 hashNumAvail;
|
|
|
|
CLzRef* son;
|
|
UInt32 matchMaxLen;
|
|
UInt32 numHashBytes;
|
|
UInt32 pos;
|
|
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;
|
|
} CMatchFinderMt;
|
|
|
|
void MatchFinderMt_Construct(CMatchFinderMt* p);
|
|
void MatchFinderMt_Destruct(CMatchFinderMt* p, ISzAlloc* alloc);
|
|
SRes MatchFinderMt_Create(CMatchFinderMt* p, UInt32 historySize, UInt32 keepAddBufferBefore,
|
|
UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ISzAlloc* alloc);
|
|
void MatchFinderMt_CreateVTable(CMatchFinderMt* p, IMatchFinder* vTable);
|
|
void MatchFinderMt_ReleaseStream(CMatchFinderMt* p);
|
|
}
|
|
|
|
#endif
|