132 lines
3.3 KiB
C++
132 lines
3.3 KiB
C++
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//-----------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1995.
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//
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// File: CRSembed.hxx
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//
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// Contents: IRowsetInfo and IGetRow methods
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//
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// Functions:
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//
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// Notes:
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//
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//
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// History: 08/30/96 | RenatoB | Created
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//----------------------------------------------------------------------------
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#ifndef _CRSINFO_H_
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#define _CRSINFO_H_
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//-----------------------------------------------------------------------------
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// @class CRowsetInfo | ADSI embedding of Rowset,
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// to give our IrowsetInfo interface
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//
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//
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//-----------------------------------------------------------------------------
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class CRowProvider;
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class CRowsetInfo;
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class CCommandObject;
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class CSessionObject;
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class CRowsetInfo : INHERIT_TRACKING,
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public IRowsetInfo
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{
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public:
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DECLARE_STD_REFCOUNTING
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DECLARE_IRowsetInfo_METHODS
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STDMETHODIMP QueryInterface(REFIID, LPVOID *);
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STDMETHOD(GetRowFromHROW)(
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IUnknown *pUnkOuter,
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HROW hRow, REFIID riid,
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IUnknown * *ppUnk,
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BOOL fIsTearOff,
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BOOL fAllAttrs
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);
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STDMETHOD(GetURLFromHROW)(HROW hRow,LPOLESTR *ppwszURL);
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CRowsetInfo(
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IUnknown * pUnkOuter,
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IUnknown * pParentObject,
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CSessionObject * pCSession,
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CCommandObject * pCCommand,
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CRowProvider * pRowProvider
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);
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~CRowsetInfo();
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STDMETHODIMP FInit(
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IUnknown * pRowset //@parm IN| rowset interface
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);
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private:
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//Helper function to get credentials from INIT properties.
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STDMETHODIMP GetCredentials(
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IGetDataSource *pSession,
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CCredentials &refCreds);
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IUnknown * _pUnkOuter;
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IUnknown * _pRowset;
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IUnknown * _pParentObject;
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CSessionObject * _pCSession;
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CCommandObject * _pCCommand;
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CRITICAL_SECTION _csRowsetInfo;
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IMalloc * _pMalloc;
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CRowProvider * _pRowProvider;
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};
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class CAutoBlock {
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friend class CRowsetInfo;
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friend class CImpIAccessor;
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friend class CRowset;
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private:
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CAutoBlock(CRITICAL_SECTION *pCrit);
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~CAutoBlock();
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void UnBlock();
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CRITICAL_SECTION *_pCrit;
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};
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inline CAutoBlock::CAutoBlock(
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CRITICAL_SECTION *pCrit ) //@parm IN | The critical section.
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{
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// It is OK to pass a NULL ptr to this routine. It is a NOOP.
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// Note that passing NULL to EnterCriticalSection blows up.
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if( pCrit )
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::EnterCriticalSection( pCrit );
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_pCrit = pCrit;
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};
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inline CAutoBlock::~CAutoBlock()
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{
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if( _pCrit )
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::LeaveCriticalSection( _pCrit );
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}
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//-----------------------------------------------------------------------------
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// @mfunc
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// Ends blocking explicitly. Thereafter, the destructor does nothing.
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//-----------------------------------------------------------------------------------
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inline void CAutoBlock::UnBlock()
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{
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// Clear the critical-section member,
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// so that the destructor doesn't do anything.
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if( _pCrit )
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::LeaveCriticalSection( _pCrit );
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_pCrit = NULL;
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}
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#endif //_CRSSINFO_H
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