3.13

7zip/Archive/Cab/CabCopyDecoder.cpp

@@ -0,0 +1,67 @@
+// CabCopyDecoder.cpp
+
+#include "StdAfx.h"
+
+#include "CabCopyDecoder.h"
+#include "Common/Defs.h"
+#include "Windows/Defs.h"
+
+namespace NArchive {
+namespace NCab {
+
+static const UINT32 kBufferSize = 1 << 17;
+
+/*
+void CCopyDecoder::ReleaseStreams()
+{
+  m_InStream.ReleaseStream();
+  m_OutStream.ReleaseStream();
+}
+*/
+class CCopyDecoderFlusher
+{
+  CCopyDecoder *m_Decoder;
+public:
+  CCopyDecoderFlusher(CCopyDecoder *aDecoder): m_Decoder(aDecoder) {}
+  ~CCopyDecoderFlusher()
+  {
+    m_Decoder->Flush();
+    // m_Decoder->ReleaseStreams();
+  }
+};
+
+STDMETHODIMP CCopyDecoder::Code(ISequentialInStream *inStream,
+    ISequentialOutStream *outStream, 
+    const UINT64 *inSize, const UINT64 *outSize,
+    ICompressProgressInfo *progress)
+{
+  if (outSize == NULL)
+    return E_INVALIDARG;
+  UINT64 size = *outSize;
+
+  m_InStream.Init(inStream, m_ReservedSize, m_NumInDataBlocks);
+  m_OutStream.Init(outStream);
+  CCopyDecoderFlusher decoderFlusher(this);
+
+  UINT64 nowPos64 = 0;
+  while(nowPos64 < size)
+  {
+    UINT32 blockSize;
+    bool dataAreCorrect;
+    RINOK(m_InStream.ReadBlock(blockSize, dataAreCorrect));
+    if (!dataAreCorrect)
+    {
+      throw 123456;
+    }
+    for (UINT32 i = 0; i < blockSize; i++)
+      m_OutStream.WriteByte(m_InStream.ReadByte());
+    nowPos64 += blockSize;
+    if (progress != NULL)
+    {
+      RINOK(progress->SetRatioInfo(&nowPos64, &nowPos64));
+    }
+  }
+  return S_OK;
+}
+
+}}