You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
2.3 KiB
102 lines
2.3 KiB
![]()
4 years ago
|
/* LzFindMt.h -- multithreaded Match finder for LZ algorithms
|
||
|
2013-01-18 : Igor Pavlov : Public domain */
|
||
|
|
||
|
#ifndef __LZ_FIND_MT_H
|
||
|
#define __LZ_FIND_MT_H
|
||
|
|
||
|
#include "LzFind.h"
|
||
|
#include "Threads.h"
|
||
|
|
||
|
EXTERN_C_BEGIN
|
||
|
|
||
|
#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);
|
||
|
|
||
|
EXTERN_C_END
|
||
|
|
||
|
#endif
|