195 lines
5.3 KiB
C++
195 lines
5.3 KiB
C++
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//+------------------------------------------------------------------
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//
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// Copyright (C) 1991-1997 Microsoft Corporation.
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//
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// File: identran.cxx
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//
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// Contents: Identity workid <--> doc name translator
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//
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// Classes: CIdentityNameTranslator
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//
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// History: 24-Feb-97 SitaramR Created
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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 "identran.hxx"
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#include "docname.hxx"
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//+---------------------------------------------------------------------------
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//
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// Member: CIdentityNameTranslator::CIdentityNameTranslator
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//
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// Synopsis: Constructor
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//
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// History: 24-Feb-97 SitaramR Created
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//
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//----------------------------------------------------------------------------
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CIdentityNameTranslator::CIdentityNameTranslator()
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: _cRefs( 1 )
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{
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIdentityNameTranslator::AddRef
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//
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// Synopsis: Increments refcount
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CIdentityNameTranslator::AddRef()
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{
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return InterlockedIncrement( (long *) &_cRefs );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIdentityNameTranslator::Release
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//
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// Synopsis: Decrement refcount. Delete if necessary.
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CIdentityNameTranslator::Release()
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{
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Win4Assert( _cRefs > 0 );
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ULONG uTmp = InterlockedDecrement( (long *) &_cRefs );
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if ( 0 == uTmp )
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delete this;
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return(uTmp);
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CIdentityNameTranslator::QueryInterface
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//
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// Synopsis: Rebind to other interface
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//
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// Arguments: [riid] -- IID of new interface
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// [ppvObject] -- New interface * returned here
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//
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// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIdentityNameTranslator::QueryInterface( REFIID riid,
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void ** ppvObject)
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{
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Win4Assert( 0 != ppvObject );
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if ( riid == IID_ICiCDocNameToWorkidTranslator )
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*ppvObject = (void *)(ICiCDocNameToWorkidTranslator *) this;
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else if ( riid == IID_IUnknown )
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*ppvObject = (void *)(IUnknown *) this;
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else
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{
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*ppvObject = 0;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CIdentityNameTranslator::QueryDocName
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//
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// Synopsis: Returns a new doc name object
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//
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// Arguments: [ppICiCDocName] - Pointer to ICiCDocName object returned here
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//
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// History: 24-Feb-97 SitaramR Created
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//
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//----------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIdentityNameTranslator::QueryDocName( ICiCDocName ** ppICiCDocName )
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{
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Win4Assert( 0 != ppICiCDocName );
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SCODE sc = S_OK;
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TRY
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{
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*ppICiCDocName = new CCiCDocName;
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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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}
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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: CIdentityNameTranslator::WorkIdToDocName
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//
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// Synopsis: Translates a WorkId to a document name
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//
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// Arguments: [workid] - WorkId to translate
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// [pICiCDocName] - Doc Name filled in here
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//----------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIdentityNameTranslator::WorkIdToDocName( WORKID workid,
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ICiCDocName * pICiCDocName )
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{
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//
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// The name is a serialized form of wid, i.e. 4 bytes long
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//
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Win4Assert( sizeof(WORKID) == 2 * sizeof(WCHAR) );
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CCiCDocName *pDocName = (CCiCDocName *) pICiCDocName;
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pDocName->SetPath( (WCHAR *)&workid, sizeof(WORKID)/sizeof(WCHAR) );
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return S_OK;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CIdentityNameTranslator::DocNameToWorkId
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//
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// Synopsis: Converts a document name to a WorkId.
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//
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// Arguments: [pICiCDocName] - Document Name
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// [pWorkid] - Workid returned here
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//
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// History: 24-Feb-1997 SitaramR Created
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//
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//----------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CIdentityNameTranslator::DocNameToWorkId( ICiCDocName const * pICiCDocName,
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WORKID * pWorkid )
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{
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Win4Assert( 0 != pICiCDocName );
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Win4Assert( 0 != pWorkid );
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CCiCDocName const * pDocName = (CCiCDocName const *) pICiCDocName;
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WCHAR const *pwszPath = pDocName->GetPath();
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RtlCopyMemory( pWorkid, pwszPath, sizeof(WORKID) );
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return S_OK;
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}
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