release/src-rt-6.x/linux/linux-2.6/scripts/squashfs/lzma/C/7zip/Common/OutBuffer.h

   1 // OutBuffer.h
   2
   3 #ifndef __OUTBUFFER_H
   4 #define __OUTBUFFER_H
   5
   6 #include "../IStream.h"
   7 #include "../../Common/MyCom.h"
   8
   9 #ifndef _NO_EXCEPTIONS
  10 struct COutBufferException
  11 {
  12   HRESULT ErrorCode;
  13   COutBufferException(HRESULT errorCode): ErrorCode(errorCode) {}
  14 };
  15 #endif
  16
  17 class COutBuffer
  18 {
  19 protected:
  20   Byte *_buffer;
  21   UInt32 _pos;
  22   UInt32 _limitPos;
  23   UInt32 _streamPos;
  24   UInt32 _bufferSize;
  25   CMyComPtr<ISequentialOutStream> _stream;
  26   UInt64 _processedSize;
  27   Byte  *_buffer2;
  28   bool _overDict;
  29
  30   HRESULT FlushPart();
  31   void FlushWithCheck();
  32 public:
  33   #ifdef _NO_EXCEPTIONS
  34   HRESULT ErrorCode;
  35   #endif
  36
  37   COutBuffer(): _buffer(0), _pos(0), _stream(0), _buffer2(0) {}
  38   ~COutBuffer() { Free(); }
  39
  40   bool Create(UInt32 bufferSize);
  41   void Free();
  42
  43   void SetMemStream(Byte *buffer) { _buffer2 = buffer; }
  44   void SetStream(ISequentialOutStream *stream);
  45   void Init();
  46   HRESULT Flush();
  47   void ReleaseStream() {  _stream.Release(); }
  48
  49   void WriteByte(Byte b)
  50   {
  51     _buffer[_pos++] = b;
  52     if(_pos == _limitPos)
  53       FlushWithCheck();
  54   }
  55   void WriteBytes(const void *data, size_t size)
  56   {
  57     for (size_t i = 0; i < size; i++)
  58       WriteByte(((const Byte *)data)[i]);
  59   }
  60
  61   UInt64 GetProcessedSize() const;
  62 };
  63
  64 #endif