111 lines
2.7 KiB
C++
111 lines
2.7 KiB
C++
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//+============================================================================
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//
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// File: SSMapStm.hxx
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//
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// Purpose: Define the CSSMappedStream class.
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// This class provides a IMappedStream 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 _SS_MPD_STM_HXX_
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#define _SS_MPD_STM_HXX_
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// --------
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// Includes
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// --------
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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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EXTERN_C const IID IID_IMappedStream;
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// ---------------
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// CSSMappedStream
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// ---------------
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class CSSMappedStream : public IMappedStream
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{
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// Constructors
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public:
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CSSMappedStream( IStream *pstm );
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~CSSMappedStream();
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// -------------
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// IMappedStream
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// -------------
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public:
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STDMETHODIMP QueryInterface(REFIID riid, void **ppvObject);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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STDMETHODIMP_(VOID) Open(IN NTPROP np, OUT LONG *phr);
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STDMETHODIMP_(VOID) Close(OUT LONG *phr);
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STDMETHODIMP_(VOID) ReOpen(IN OUT VOID **ppv, OUT LONG *phr);
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STDMETHODIMP_(VOID) Quiesce(VOID);
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STDMETHODIMP_(VOID) Map(IN BOOLEAN fCreate, OUT VOID **ppv);
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STDMETHODIMP_(VOID) Unmap(IN BOOLEAN fFlush, IN OUT VOID **ppv);
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STDMETHODIMP_(VOID) Flush(OUT LONG *phr);
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STDMETHODIMP_(ULONG) GetSize(OUT LONG *phr);
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STDMETHODIMP_(VOID) SetSize(IN ULONG cb, IN BOOLEAN fPersistent, IN OUT VOID **ppv, OUT LONG *phr);
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STDMETHODIMP_(NTSTATUS) Lock(IN BOOLEAN fExclusive);
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STDMETHODIMP_(NTSTATUS) Unlock(VOID);
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STDMETHODIMP_(VOID) QueryTimeStamps(OUT STATPROPSETSTG *pspss, BOOLEAN fNonSimple) const;
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STDMETHODIMP_(BOOLEAN) QueryModifyTime(OUT LONGLONG *pll) const;
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STDMETHODIMP_(BOOLEAN) QuerySecurity(OUT ULONG *pul) const;
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STDMETHODIMP_(BOOLEAN) IsWriteable(VOID) const;
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STDMETHODIMP_(BOOLEAN) IsModified(VOID) const;
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STDMETHODIMP_(VOID) SetModified(OUT LONG *phr);
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STDMETHODIMP_(HANDLE) GetHandle(VOID) const;
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#if DBGPROP
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STDMETHODIMP_(BOOLEAN) SetChangePending(BOOLEAN fChangePending);
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STDMETHODIMP_(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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LONG _cRefs;
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IStream *_pstm;
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BYTE *_pbMappedStream;
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ULONG _cbMappedStream;
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ULONG _cbActualStreamSize;
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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 _SS_MPD_STM_HXX_
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