CFileMap.h

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#ifndef CFILEMAP_H
#define CFILEMAP_H

#include    "AxPipe.h"

namespace AxPipe {
class CSegMap : public CSeg {
    longlong m_llPos;                       
    void *m_pView;                          
    void *m_pOwner;                         

public:
    CSegMap(void *pOwner, size_t cb, void *pv, void *pView, longlong llPos, bool fReadOnly = false);
    virtual ~CSegMap();                     
    longlong GetPos();                      

public:
    static void *ClassId();                 
    virtual void *RTClassId();              
    bool IsOwner(void *pOwner);             
};

class CSourceMemFile : public CSource {
    HANDLE m_hFile,                         
           m_hMapping;                      
    size_t m_cbChunk;                       
    longlong m_cbFileSize,                  
             m_cbStreamPos;                 
    _TCHAR *m_szFileName;                   

protected:
    HANDLE GetHandle();                     

public:

    CSourceMemFile *Init(const _TCHAR *szFileName, size_t cbChunk = 64*1024);
    CSourceMemFile();                       

protected:
    bool OutOpen();                         
    bool OutClose(void);                    
    CSeg *In();                             
};

typedef CThread<CSourceMemFile> CTSourceMemFile;

class CSinkMemFile : public CSink {
    HANDLE m_hFile,                         
           m_hMapping;                      
    size_t m_cbChunk;                       
    longlong m_cbFileSize,                  
             m_cbStreamPos;                 
    _TCHAR *m_szFileName;                   
    longlong m_cbInPos,                     
             m_cbOutPos,                    
             m_cbMappingSize;               
    CRITICAL_SECTION m_CritSect;            

protected:
    HANDLE GetHandle();                     

public:
    CSinkMemFile *Init(const TCHAR *szFileName, size_t cbChunk = 64*1024);
    CSinkMemFile();                         
    virtual ~CSinkMemFile();                

protected:
    bool OutClose();                        
    CSeg *OutGetSeg(size_t cb);             
    void Out(CSeg *pSeg);                   
    bool OutOpen();                         
};

typedef CThread<CSinkMemFile> CTSinkMemFile;

} // namespace AxPipe
#endif  CFILEMAP_H

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