87 lines
3 KiB
C
87 lines
3 KiB
C
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/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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stream.h
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Abstract:
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This module contains the definition for the Server
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Extension Object Stream class.
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Author:
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Don Dumitru (dondu@microsoft.com)
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Revision History:
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dondu 03/29/97 created
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--*/
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// stream.h : Declaration of the CSEOStream
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/////////////////////////////////////////////////////////////////////////////
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// CStream
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class ATL_NO_VTABLE __declspec(uuid("2DF59671-3D15-11d1-AA51-00AA006BC80B")) CSEOStream :
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public CComObjectRoot,
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public IStream
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// , public CComCoClass<CSEOStream, &CLSID_CSEOStream>
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{
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public:
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HRESULT FinalConstruct();
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void FinalRelease();
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void Cleanup();
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HRESULT Init(HANDLE hFile, LPCSTR pszFile, ULARGE_INTEGER libOffset, CSEOStream *pSubStream);
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HRESULT Init(HANDLE hFile, LPCWSTR pszFile, ULARGE_INTEGER libOffset, CSEOStream *pSubStream);
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HRESULT Open();
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HRESULT ReadOffset(void *pv, ULONG cb, ULONG *pcbRead, ULARGE_INTEGER *plibOffset);
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HRESULT WriteOffset(void const* pv, ULONG cb, ULONG *pcbWritten, ULARGE_INTEGER *plibOffset);
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HRESULT GetSize(ULARGE_INTEGER *plibSize);
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HRESULT CopyToOffset(IStream *pstm, ULARGE_INTEGER libOffset, ULARGE_INTEGER *plibRead, ULARGE_INTEGER *plibWritten, ULARGE_INTEGER *plibOffset);
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HRESULT CloneOffset(IStream **pstm, ULARGE_INTEGER libOffset);
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static HRESULT CreateInstance(HANDLE hFile, LPCSTR pszFile, ULARGE_INTEGER libOffset, CSEOStream *pSubStream, IStream **ppStream);
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static HRESULT CreateInstance(HANDLE hFile, LPCWSTR pszFile, ULARGE_INTEGER libOffset, CSEOStream *pSubStream, IStream **ppStream);
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DECLARE_PROTECT_FINAL_CONSTRUCT();
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DECLARE_NOT_AGGREGATABLE(CSEOStream);
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// DECLARE_REGISTRY_RESOURCEID_EX(IDR_StdAfx,
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// L"SMTP IStream Class",
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// L"SMTP.IStream.1",
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// L"SMTP.IStream");
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DECLARE_GET_CONTROLLING_UNKNOWN();
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BEGIN_COM_MAP(CSEOStream)
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COM_INTERFACE_ENTRY(IStream)
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COM_INTERFACE_ENTRY_IID(__uuidof(CSEOStream),CSEOStream)
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COM_INTERFACE_ENTRY_AGGREGATE(IID_IMarshal, m_pUnkMarshaler.p)
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END_COM_MAP()
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// IStream
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public:
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HRESULT STDMETHODCALLTYPE Read(void *pv, ULONG cb, ULONG *pcbRead);
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HRESULT STDMETHODCALLTYPE Write(void const* pv, ULONG cb, ULONG *pcbWritten);
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HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *pdlibNewPosition);
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HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER libNewSize);
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HRESULT STDMETHODCALLTYPE CopyTo(IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten);
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HRESULT STDMETHODCALLTYPE Commit(DWORD grfCommitFlags);
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HRESULT STDMETHODCALLTYPE Revert(void);
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HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
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HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
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HRESULT STDMETHODCALLTYPE Stat(STATSTG * pstatstg, DWORD grfStatFlag);
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HRESULT STDMETHODCALLTYPE Clone(IStream **pstm);
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private:
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HANDLE m_hFile;
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LPSTR m_pszFile;
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ULARGE_INTEGER m_libOffset;
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HANDLE m_hEvent;
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CSEOStream *m_pSubStream;
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CComPtr<IUnknown> m_pUnkMarshaler;
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};
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