4.44 beta

CPP/7zip/Archive/Arj/ArjIn.h

@@ -0,0 +1,75 @@
+// Archive/ArjIn.h
+
+#ifndef __ARCHIVE_ARJIN_H
+#define __ARCHIVE_ARJIN_H
+
+#include "Common/MyCom.h"
+#include "../../IStream.h"
+
+#include "ArjItem.h"
+
+namespace NArchive {
+namespace NArj {
+  
+class CInArchiveException
+{
+public:
+  enum CCauseType
+  {
+    kUnexpectedEndOfArchive = 0,
+    kCRCError,
+    kIncorrectArchive,
+    kReadStreamError,
+    kSeekStreamError
+  } 
+  Cause;
+  CInArchiveException(CCauseType cause): Cause(cause) {};
+};
+
+class CProgressVirt
+{
+public:
+  STDMETHOD(SetCompleted)(const UInt64 *numFiles) PURE;
+};
+
+class CInArchive
+{
+  CMyComPtr<IInStream> _stream;
+  UInt64 _streamStartPosition;
+  UInt64 _position;
+  UInt16 _blockSize;
+  Byte _block[kMaxBlockSize];
+  UInt32 _blockPos;
+
+  
+  bool FindAndReadMarker(const UInt64 *searchHeaderSizeLimit);
+  
+  bool ReadBlock();
+  bool ReadBlock2();
+
+  Byte ReadByte();
+  UInt16 ReadUInt16();
+  UInt32 ReadUInt32();
+
+  HRESULT ReadBytes(void *data, UInt32 size, UInt32 *processedSize);
+  bool ReadBytesAndTestSize(void *data, UInt32 size);
+  void SafeReadBytes(void *data, UInt32 size);
+  Byte SafeReadByte();
+  UInt16 SafeReadUInt16();
+  UInt32 SafeReadUInt32();
+    
+  void IncreasePositionValue(UInt64 addValue);
+  void ThrowIncorrectArchiveException();
+ 
+public:
+  HRESULT GetNextItem(bool &filled, CItemEx &item);
+
+  bool Open(IInStream *inStream, const UInt64 *searchHeaderSizeLimit);
+  void Close();
+
+  void IncreaseRealPosition(UInt64 addValue);
+};
+  
+}}
+  
+#endif