mirror of
https://github.com/DrBeef/Raze.git
synced 2024-11-16 09:21:12 +00:00
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/* 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
|