1/* Lzma2DecMt.h -- LZMA2 Decoder Multi-thread
 22018-02-17 : Igor Pavlov : Public domain */
 3
 4#ifndef __LZMA2_DEC_MT_H
 5#define __LZMA2_DEC_MT_H
 6
 7#include "7zTypes.h"
 8
 9EXTERN_C_BEGIN
10
11typedef struct
12{
13  size_t inBufSize_ST;
14  size_t outStep_ST;
15  
16  #ifndef _7ZIP_ST
17  unsigned numThreads;
18  size_t inBufSize_MT;
19  size_t outBlockMax;
20  size_t inBlockMax;
21  #endif
22} CLzma2DecMtProps;
23
24/* init to single-thread mode */
25void Lzma2DecMtProps_Init(CLzma2DecMtProps *p);
26
27
28/* ---------- CLzma2DecMtHandle Interface ---------- */
29
30/* Lzma2DecMt_ * functions can return the following exit codes:
31SRes:
32  SZ_OK           - OK
33  SZ_ERROR_MEM    - Memory allocation error
34  SZ_ERROR_PARAM  - Incorrect paramater in props
35  SZ_ERROR_WRITE  - ISeqOutStream write callback error
36  // SZ_ERROR_OUTPUT_EOF - output buffer overflow - version with (Byte *) output
37  SZ_ERROR_PROGRESS - some break from progress callback
38  SZ_ERROR_THREAD - error in multithreading functions (only for Mt version)
39*/
40
41typedef void * CLzma2DecMtHandle;
42
43CLzma2DecMtHandle Lzma2DecMt_Create(ISzAllocPtr alloc, ISzAllocPtr allocMid);
44void Lzma2DecMt_Destroy(CLzma2DecMtHandle p);
45
46SRes Lzma2DecMt_Decode(CLzma2DecMtHandle p,
47    Byte prop,
48    const CLzma2DecMtProps *props,
49    ISeqOutStream *outStream,
50    const UInt64 *outDataSize, // NULL means undefined
51    int finishMode,            // 0 - partial unpacking is allowed, 1 - if lzma2 stream must be finished
52    // Byte *outBuf, size_t *outBufSize,
53    ISeqInStream *inStream,
54    // const Byte *inData, size_t inDataSize,
55    
56    // out variables:
57    UInt64 *inProcessed,
58    int *isMT,  /* out: (*isMT == 0), if single thread decoding was used */
59
60    // UInt64 *outProcessed,
61    ICompressProgress *progress);
62
63
64/* ---------- Read from CLzma2DecMtHandle Interface ---------- */
65
66SRes Lzma2DecMt_Init(CLzma2DecMtHandle pp,
67    Byte prop,
68    const CLzma2DecMtProps *props,
69    const UInt64 *outDataSize, int finishMode,
70    ISeqInStream *inStream);
71
72SRes Lzma2DecMt_Read(CLzma2DecMtHandle pp,
73    Byte *data, size_t *outSize,
74    UInt64 *inStreamProcessed);
75
76
77EXTERN_C_END
78
79#endif