Update to 7-Zip 17.00 Beta

CPP/7zip/Compress/XzDecoder.h

@@ -0,0 +1,95 @@
+// XzDecoder.h
+
+#ifndef __XZ_DECODER_H
+#define __XZ_DECODER_H
+
+#include "../../Common/MyCom.h"
+#include "../ICoder.h"
+
+#include "../../../C/Xz.h"
+
+
+// #include "../../Archive/XzHandler.h"
+
+namespace NCompress {
+namespace NXz {
+
+struct CXzUnpackerCPP
+{
+  Byte *InBuf;
+  Byte *OutBuf;
+  CXzUnpacker p;
+  
+  CXzUnpackerCPP();
+  ~CXzUnpackerCPP();
+};
+
+
+struct CStatInfo
+{
+  UInt64 InSize;
+  UInt64 OutSize;
+  UInt64 PhySize;
+
+  UInt64 NumStreams;
+  UInt64 NumBlocks;
+
+  bool UnpackSize_Defined;
+
+  bool NumStreams_Defined;
+  bool NumBlocks_Defined;
+
+  bool IsArc;
+  bool UnexpectedEnd;
+  bool DataAfterEnd;
+  bool Unsupported;
+  bool HeadersError;
+  bool DataError;
+  bool CrcError;
+
+  CStatInfo() { Clear(); }
+
+  void Clear();
+};
+
+
+struct CDecoder: public CStatInfo
+{
+  CXzUnpackerCPP xzu;
+  SRes DecodeRes; // it's not HRESULT
+
+  CDecoder(): DecodeRes(SZ_OK) {}
+
+  /* Decode() can return ERROR code only if there is progress or stream error.
+     Decode() returns S_OK in case of xz decoding error, but DecodeRes and CStatInfo contain error information */
+  HRESULT Decode(ISequentialInStream *seqInStream, ISequentialOutStream *outStream,
+      const UInt64 *outSizeLimit, bool finishStream, ICompressProgressInfo *compressProgress);
+  Int32 Get_Extract_OperationResult() const;
+};
+
+
+class CComDecoder:
+  public ICompressCoder,
+  public ICompressSetFinishMode,
+  public ICompressGetInStreamProcessedSize,
+  public CMyUnknownImp
+{
+  CDecoder _decoder;
+  bool _finishStream;
+
+public:
+  MY_UNKNOWN_IMP2(
+      ICompressSetFinishMode,
+      ICompressGetInStreamProcessedSize)
+  
+  STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
+      const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
+  STDMETHOD(SetFinishMode)(UInt32 finishMode);
+  STDMETHOD(GetInStreamProcessedSize)(UInt64 *value);
+
+  CComDecoder(): _finishStream(false) {}
+};
+
+}}
+
+#endif