ce188d4d |
1 | /* LzFindMt.h -- multithreaded Match finder for LZ algorithms\r |
2 | 2015-05-03 : Igor Pavlov : Public domain */\r |
3 | \r |
4 | #ifndef __LZ_FIND_MT_H\r |
5 | #define __LZ_FIND_MT_H\r |
6 | \r |
7 | #include "LzFind.h"\r |
8 | #include "Threads.h"\r |
9 | \r |
10 | EXTERN_C_BEGIN\r |
11 | \r |
12 | #define kMtHashBlockSize (1 << 13)\r |
13 | #define kMtHashNumBlocks (1 << 3)\r |
14 | #define kMtHashNumBlocksMask (kMtHashNumBlocks - 1)\r |
15 | \r |
16 | #define kMtBtBlockSize (1 << 14)\r |
17 | #define kMtBtNumBlocks (1 << 6)\r |
18 | #define kMtBtNumBlocksMask (kMtBtNumBlocks - 1)\r |
19 | \r |
20 | typedef struct _CMtSync\r |
21 | {\r |
22 | Bool wasCreated;\r |
23 | Bool needStart;\r |
24 | Bool exit;\r |
25 | Bool stopWriting;\r |
26 | \r |
27 | CThread thread;\r |
28 | CAutoResetEvent canStart;\r |
29 | CAutoResetEvent wasStarted;\r |
30 | CAutoResetEvent wasStopped;\r |
31 | CSemaphore freeSemaphore;\r |
32 | CSemaphore filledSemaphore;\r |
33 | Bool csWasInitialized;\r |
34 | Bool csWasEntered;\r |
35 | CCriticalSection cs;\r |
36 | UInt32 numProcessedBlocks;\r |
37 | } CMtSync;\r |
38 | \r |
39 | typedef UInt32 * (*Mf_Mix_Matches)(void *p, UInt32 matchMinPos, UInt32 *distances);\r |
40 | \r |
41 | /* kMtCacheLineDummy must be >= size_of_CPU_cache_line */\r |
42 | #define kMtCacheLineDummy 128\r |
43 | \r |
44 | typedef void (*Mf_GetHeads)(const Byte *buffer, UInt32 pos,\r |
45 | UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads, const UInt32 *crc);\r |
46 | \r |
47 | typedef struct _CMatchFinderMt\r |
48 | {\r |
49 | /* LZ */\r |
50 | const Byte *pointerToCurPos;\r |
51 | UInt32 *btBuf;\r |
52 | UInt32 btBufPos;\r |
53 | UInt32 btBufPosLimit;\r |
54 | UInt32 lzPos;\r |
55 | UInt32 btNumAvailBytes;\r |
56 | \r |
57 | UInt32 *hash;\r |
58 | UInt32 fixedHashSize;\r |
59 | UInt32 historySize;\r |
60 | const UInt32 *crc;\r |
61 | \r |
62 | Mf_Mix_Matches MixMatchesFunc;\r |
63 | \r |
64 | /* LZ + BT */\r |
65 | CMtSync btSync;\r |
66 | Byte btDummy[kMtCacheLineDummy];\r |
67 | \r |
68 | /* BT */\r |
69 | UInt32 *hashBuf;\r |
70 | UInt32 hashBufPos;\r |
71 | UInt32 hashBufPosLimit;\r |
72 | UInt32 hashNumAvail;\r |
73 | \r |
74 | CLzRef *son;\r |
75 | UInt32 matchMaxLen;\r |
76 | UInt32 numHashBytes;\r |
77 | UInt32 pos;\r |
78 | const Byte *buffer;\r |
79 | UInt32 cyclicBufferPos;\r |
80 | UInt32 cyclicBufferSize; /* it must be historySize + 1 */\r |
81 | UInt32 cutValue;\r |
82 | \r |
83 | /* BT + Hash */\r |
84 | CMtSync hashSync;\r |
85 | /* Byte hashDummy[kMtCacheLineDummy]; */\r |
86 | \r |
87 | /* Hash */\r |
88 | Mf_GetHeads GetHeadsFunc;\r |
89 | CMatchFinder *MatchFinder;\r |
90 | } CMatchFinderMt;\r |
91 | \r |
92 | void MatchFinderMt_Construct(CMatchFinderMt *p);\r |
93 | void MatchFinderMt_Destruct(CMatchFinderMt *p, ISzAlloc *alloc);\r |
94 | SRes MatchFinderMt_Create(CMatchFinderMt *p, UInt32 historySize, UInt32 keepAddBufferBefore,\r |
95 | UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ISzAlloc *alloc);\r |
96 | void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder *vTable);\r |
97 | void MatchFinderMt_ReleaseStream(CMatchFinderMt *p);\r |
98 | \r |
99 | EXTERN_C_END\r |
100 | \r |
101 | #endif\r |