misc/libphysfs/lzma/CPP/7zip/Compress/Copy/CopyCoder.cpp
author Wuzzy <Wuzzy2@mail.ru>
Tue, 24 Oct 2017 19:30:55 +0200
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permissions -rw-r--r--
Rewrite INSTALL file: Markdown format, add troubleshooting section, more detailed build instructions, etc.
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// Compress/CopyCoder.cpp
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#include "StdAfx.h"
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extern "C" 
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{ 
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#include "../../../../C/Alloc.h"
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}
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#include "CopyCoder.h"
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#include "../../Common/StreamUtils.h"
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namespace NCompress {
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static const UInt32 kBufferSize = 1 << 17;
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CCopyCoder::~CCopyCoder()
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{
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  ::MidFree(_buffer);
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}
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STDMETHODIMP CCopyCoder::Code(ISequentialInStream *inStream,
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    ISequentialOutStream *outStream, 
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    const UInt64 * /* inSize */, const UInt64 *outSize,
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    ICompressProgressInfo *progress)
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{
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  if (_buffer == 0)
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  {
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    _buffer = (Byte *)::MidAlloc(kBufferSize);
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    if (_buffer == 0)
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      return E_OUTOFMEMORY;
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  }
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  TotalSize = 0;
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  for (;;)
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  {
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    UInt32 realProcessedSize;
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    UInt32 size = kBufferSize;
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    if (outSize != 0)
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      if (size > *outSize - TotalSize)
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        size = (UInt32)(*outSize - TotalSize);
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    RINOK(inStream->Read(_buffer, size, &realProcessedSize));
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    if (realProcessedSize == 0)
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      break;
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    RINOK(WriteStream(outStream, _buffer, realProcessedSize, NULL));
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    TotalSize += realProcessedSize;
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    if (progress != NULL)
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    {
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      RINOK(progress->SetRatioInfo(&TotalSize, &TotalSize));
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    }
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  }
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  return S_OK;
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}
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STDMETHODIMP CCopyCoder::GetInStreamProcessedSize(UInt64 *value)
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{
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  *value = TotalSize;
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  return S_OK;
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}
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}
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