210 lines
5.3 KiB
C++
210 lines
5.3 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 2000.
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//
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// File: WrapStor.cxx
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//
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// Contents: Persistent property store (external to docfile)
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//
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// Classes: CPropertyIterWrapper
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//
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// History: 09-Apr-97 KrishnaN Created
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// 22-Apr-97 KrishnaN Modified to work with propstoremgr.
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//
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//----------------------------------------------------------------------------
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#include <pch.cxx>
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#pragma hdrstop
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#include <wrapiter.hxx>
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::CPropertyIterWrapper, public
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//
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// Arguments: [propstore] - Reference to the property store to iterate.
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//
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// Returns: Nothing.
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//
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// History: 09-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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CPropertyIterWrapper::CPropertyIterWrapper ( CPropStoreManager & propstoremgr ) :
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_lRefCount( 1 ),
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_pPropStoreWids( 0 )
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{
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_pPropStoreWids = new CPropertyStoreWids( propstoremgr );
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::~CPropertyIterWrapper, public
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//
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// Arguments: None
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//
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// Returns: Nothing
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//
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// History: 09-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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CPropertyIterWrapper::~CPropertyIterWrapper ()
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{
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delete _pPropStoreWids;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::Reset, public
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//
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// Arguments: None
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//
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// Returns:
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//
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// History: 09-Apr-97 KrishnaN Created.
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//
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// To implement this, go to propiter.cxx and do the following
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// in a new method, Reset()
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// get a lock; release the buffer; set the _wid to 1
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//----------------------------------------------------------------------------
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::AddRef, public
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//
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// Returns: Reference count on object.
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//
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// History: 09-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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ULONG CPropertyIterWrapper::AddRef()
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{
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return InterlockedIncrement(&_lRefCount);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::Release, public
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//
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// Returns: Reference count on object.
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//
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// History: 09-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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ULONG CPropertyIterWrapper::Release()
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{
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LONG lRef;
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lRef = InterlockedDecrement(&_lRefCount);
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if ( lRef <= 0 )
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delete this;
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return lRef;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::WorkId, public
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//
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// Returns: Current workid, or widInvalid if at end.
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//
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// History: 08-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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SCODE CPropertyIterWrapper::GetWorkId(WORKID &wid)
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{
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SCODE sc = S_OK;
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TRY
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{
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wid = _pPropStoreWids->WorkId();
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}
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CATCH(CException, e)
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{
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sc = e.GetErrorCode();
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wid = widInvalid;
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ciDebugOut((DEB_ERROR, "CPropertyIterWrapper::GetNextWorkId caught exception 0x%X\n", sc));
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}
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END_CATCH
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPropertyIterWrapper::GetNextWorkId, public
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//
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// Arguments:
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//
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// Returns: Next work id.
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//
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// History: 09-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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SCODE CPropertyIterWrapper::GetNextWorkId (WORKID &wid)
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{
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SCODE sc = S_OK;
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TRY
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{
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wid = _pPropStoreWids->NextWorkId();
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}
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CATCH(CException, e)
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{
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sc = e.GetErrorCode();
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ciDebugOut((DEB_ERROR, "CPropertyIterWrapper::GetNextWorkId caught exception 0x%X\n", sc));
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wid = widInvalid;
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}
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END_CATCH
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CreateWrapStor, public
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//
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// Arguments: [pPropStore] is the property store to iterate
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// [ppPropStoreIter] receives the created iterator
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//
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// Returns: PPropertyStorage object
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//
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// History: 08-Apr-97 KrishnaN Created.
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//
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//----------------------------------------------------------------------------
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SCODE CreatePropertyStoreIter( PPropertyStore * pPropStore,
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PPropertyStoreIter ** ppPropStoreIter )
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{
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if (0 == pPropStore || 0 == ppPropStoreIter)
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return E_INVALIDARG;
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*ppPropStoreIter = 0;
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SCODE sc = S_OK;
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TRY
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{
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CPropStoreManager *pcps = ((CPropertyStoreWrapper *)pPropStore)->_GetCPropertyStore();
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*ppPropStoreIter = new CPropertyIterWrapper (*pcps);
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}
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CATCH( CException, e)
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{
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sc = e.GetErrorCode();
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ciDebugOut((DEB_ERROR, "CreatePropertyStoreIter caught exception 0x%X\n", sc));
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}
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END_CATCH
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return sc;
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}
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