103 lines
2.2 KiB
C++
103 lines
2.2 KiB
C++
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//+============================================================================
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//
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// File: CFMapStm.hxx
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//
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// Purpose: Define the CCFMappedStream class.
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// This class provides a CMappedStream implementation
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// which maps an IStream from a Structured Storage.
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//
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//+============================================================================
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#ifndef _CF_MPD_STM_HXX_
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#define _CF_MPD_STM_HXX_
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// --------
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// Includes
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// --------
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#include <stgvarb.hxx> // CBaseStorageVariant declarations
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#include <propset.h> // Appendix B Property set structure definitions
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#ifndef _MAC
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#include <ddeml.h> // For CP_WINUNICODE
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#include <objidl.h> // OLE Interfaces
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#endif
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#include <byteordr.hxx> // Byte-swapping routines
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// ---------------
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// CCFMappedStream
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// ---------------
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class CCFMappedStream : public CMappedStream
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{
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// Constructors
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public:
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CCFMappedStream( IStream *pstm );
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~CCFMappedStream();
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// Exposed methods
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public:
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VOID Open(IN NTPROP np, OUT LONG *phr);
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VOID Close(OUT LONG *phr);
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VOID ReOpen(IN OUT VOID **ppv, OUT LONG *phr);
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VOID Quiesce(VOID);
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VOID Map(IN BOOLEAN fCreate, OUT VOID **ppv);
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VOID Unmap(IN BOOLEAN fFlush, IN OUT VOID **ppv);
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VOID Flush(OUT LONG *phr);
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ULONG GetSize(OUT LONG *phr);
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VOID SetSize(IN ULONG cb, IN BOOLEAN fPersistent, IN OUT VOID **ppv, OUT LONG *phr);
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NTSTATUS Lock(IN BOOLEAN fExclusive);
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NTSTATUS Unlock(VOID);
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VOID QueryTimeStamps(OUT STATPROPSETSTG *pspss, BOOLEAN fNonSimple) const;
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BOOLEAN QueryModifyTime(OUT LONGLONG *pll) const;
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BOOLEAN QuerySecurity(OUT ULONG *pul) const;
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BOOLEAN IsWriteable(VOID) const;
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BOOLEAN IsModified(VOID) const;
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VOID SetModified(VOID);
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HANDLE GetHandle(VOID) const;
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#if DBGPROP
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BOOLEAN SetChangePending(BOOLEAN fChangePending);
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BOOLEAN IsNtMappedStream(VOID) const;
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#endif
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// Internal Methods
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protected:
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VOID Initialize();
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HRESULT Write();
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// Internal Data
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protected:
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IStream *_pstm;
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BYTE *_pbMappedStream;
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ULONG _cbMappedStream;
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ULONG _cbOriginalStreamSize;
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VOID *_powner;
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BOOL _fLowMem;
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BOOL _fDirty;
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#if DBGPROP
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BOOL _fChangePending;
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#endif
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};
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#endif // #ifndef _CF_MPD_STM_HXX_
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