210 lines
5.6 KiB
C++
210 lines
5.6 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1998 - 1999
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//
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// File: schemacache.cpp
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#include "schemacache.h"
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//+--------------------------------------------------------------------------
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//
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// Member: CADSIEditSchemaCache::Lookup
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//
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// Synopsis: Gets the cache item identified by the given class name
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//
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// Arguments: [pszClass - IN] : the name of the class to retrieve the
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// cache information for
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// [refpItem - OUT] : reference to a pointer that will receive
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// the cached item
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//
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// Returns: bool : true if the cache contained the item
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//
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// History: 27-Nov-2000 JeffJon Created
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//
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//---------------------------------------------------------------------------
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CADSIEditClassCacheItemBase* CADSIEditSchemaCache::FindClassCacheItem(CCredentialObject* pCredObject,
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PCWSTR pszClass,
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PCWSTR pszSchemaPath)
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{
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_Lock();
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CADSIEditClassCacheItemBase* pCacheSchemaItem = 0;
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do // false while
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{
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BOOL bFound = m_Map.Lookup(pszClass, pCacheSchemaItem);
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if (!bFound)
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{
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TRACE(_T("Cache miss: %s\n"), pszClass);
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HRESULT hr = S_OK;
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CComPtr<IADsClass> spClass;
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hr = OpenObjectWithCredentials(pCredObject,
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pszSchemaPath,
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IID_IADsClass,
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(void**)&spClass);
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if ( FAILED(hr) )
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{
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TRACE(_T("Bind failed in IsContainer() because hr=0x%x\n"), hr);
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break;
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}
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short bContainer = 0;
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hr = spClass->get_Container( &bContainer );
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if (FAILED(hr))
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{
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TRACE(_T("IADsClass::get_Container() failed. hr=0x%x\n"), hr);
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}
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pCacheSchemaItem = new CADSIEditClassCacheItemBase(pszClass, bContainer ? true : false);
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if (pCacheSchemaItem)
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{
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//
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// set in the cache
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//
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m_Map.SetAt(pszClass, pCacheSchemaItem);
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}
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else
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{
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ASSERT(pCacheSchemaItem);
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break;
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}
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}
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} while (false);
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_Unlock();
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return pCacheSchemaItem;
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}
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//+--------------------------------------------------------------------------
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//
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// Member: CADSIEditSchemaCache::Lookup
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//
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// Synopsis: Gets the cache item identified by the given class name
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//
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// Arguments: [pszClass - IN] : the name of the class to retrieve the
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// cache information for
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// [refpItem - OUT] : reference to a pointer that will receive
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// the cached item
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//
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// Returns: bool : true if the cache contained the item
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//
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// History: 27-Nov-2000 JeffJon Created
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//
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//---------------------------------------------------------------------------
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BOOL CADSIEditSchemaCache::Lookup(PCWSTR pszClass, CADSIEditClassCacheItemBase*& refpItem)
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{
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_Lock();
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BOOL b = m_Map.Lookup(pszClass, refpItem);
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_Unlock();
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return b;
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}
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//+--------------------------------------------------------------------------
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//
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// Member: CADSIEditSchemaCache::Initialize
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//
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// Synopsis: Initializes the critical section and cleans out the cache
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//
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// Arguments:
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//
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// Returns: HRESULT : S_OK if initialization succeeded
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//
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// History: 27-Nov-2000 JeffJon Created
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//
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//---------------------------------------------------------------------------
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HRESULT CADSIEditSchemaCache::Initialize()
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{
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HRESULT hr = S_OK;
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ExceptionPropagatingInitializeCriticalSection(&m_cs);
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_Lock();
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_Cleanup();
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_Unlock();
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return hr;
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}
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//+--------------------------------------------------------------------------
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//
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// Member: CADSIEditSchemaCache::Destroy
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//
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// Synopsis: Cleans out the cache and deletes the critical section
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//
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// Arguments:
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//
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// Returns: HRESULT : S_OK if everything was deleted successfully
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//
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// History: 27-Nov-2000 JeffJon Created
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//
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//---------------------------------------------------------------------------
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HRESULT CADSIEditSchemaCache::Destroy()
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{
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HRESULT hr = S_OK;
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_Lock();
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_Cleanup();
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_Unlock();
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//
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// REVIEW_JEFFJON : need to add exception handling here
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//
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::DeleteCriticalSection(&m_cs);
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return hr;
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}
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//+--------------------------------------------------------------------------
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//
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// Member: CADSIEditSchemaCache::Clear
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//
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// Synopsis: Cleans out the cache
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//
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// Arguments:
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//
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// Returns:
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//
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// History: 27-Nov-2000 JeffJon Created
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//
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//---------------------------------------------------------------------------
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void CADSIEditSchemaCache::Clear()
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{
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_Lock();
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_Cleanup();
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_Unlock();
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}
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//+--------------------------------------------------------------------------
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//
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// Member: CADSIEditSchemaCache::_Cleanup
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//
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// Synopsis: Removes all entries from the map and deletes them
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//
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// Arguments:
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//
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// Returns:
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//
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// History: 27-Nov-2000 JeffJon Created
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//
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//---------------------------------------------------------------------------
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void CADSIEditSchemaCache::_Cleanup()
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{
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CString Key;
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CADSIEditClassCacheItemBase* pCacheItem = NULL;
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POSITION pos = m_Map.GetStartPosition();
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while (!m_Map.IsEmpty())
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{
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m_Map.GetNextAssoc (pos, Key, pCacheItem);
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m_Map.RemoveKey (Key);
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delete pCacheItem;
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}
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}
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