other-licenses/7zstub/src/C/Lzma2DecMt.h

   1 /* Lzma2DecMt.h -- LZMA2 Decoder Multi-thread
   2 2018-02-17 : Igor Pavlov : Public domain */
   3
   4 #ifndef __LZMA2_DEC_MT_H
   5 #define __LZMA2_DEC_MT_H
   6
   7 #include "7zTypes.h"
   8
   9 EXTERN_C_BEGIN
  10
  11 typedef 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 */
  25 void Lzma2DecMtProps_Init(CLzma2DecMtProps *p);
  26
  27
  28 /* ---------- CLzma2DecMtHandle Interface ---------- */
  29
  30 /* Lzma2DecMt_ * functions can return the following exit codes:
  31 SRes:
  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
  41 typedef void * CLzma2DecMtHandle;
  42
  43 CLzma2DecMtHandle Lzma2DecMt_Create(ISzAllocPtr alloc, ISzAllocPtr allocMid);
  44 void Lzma2DecMt_Destroy(CLzma2DecMtHandle p);
  45
  46 SRes 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
  66 SRes Lzma2DecMt_Init(CLzma2DecMtHandle pp,
  67     Byte prop,
  68     const CLzma2DecMtProps *props,
  69     const UInt64 *outDataSize, int finishMode,
  70     ISeqInStream *inStream);
  71
  72 SRes Lzma2DecMt_Read(CLzma2DecMtHandle pp,
  73     Byte *data, size_t *outSize,
  74     UInt64 *inStreamProcessed);
  75
  76
  77 EXTERN_C_END
  78
  79 #endif