1250 lines
27 KiB
C++
1250 lines
27 KiB
C++
//+---------------------------------------------------------------------------
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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: cprops.cxx
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//
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// Contents: Property Cache functionality for NDS
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//
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// Functions:
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// CPropertyCache::addproperty
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// CPropertyCache::updateproperty
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// CPropertyCache::findproperty
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// CPropertyCache::getproperty
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// CPropertyCache::putproperty
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// CProperyCache::CPropertyCache
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// CPropertyCache::~CPropertyCache
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// CPropertyCache::createpropertycache
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//
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// History: 25-Apr-96 KrishnaG Created.
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//
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//----------------------------------------------------------------------------
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#include "nds.hxx"
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#if DBG
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DECLARE_INFOLEVEL(NDSMarshall);
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DECLARE_DEBUG(NDSMarshall);
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#define NDSMarshallDebugOut(x) NDSMarshallInlineDebugOut x
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#endif
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//+------------------------------------------------------------------------
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//
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// Function: CPropertyCache::addproperty
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//
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// Synopsis: Adds a new empty property to the cache
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//
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//
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//
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// Arguments: [szPropertyName] --
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// [vt] --
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// [vaData] --
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//
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//
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//-------------------------------------------------------------------------
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HRESULT
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CPropertyCache::
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addproperty(
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LPWSTR szPropertyName,
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DWORD dwSyntaxId
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)
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{
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HRESULT hr = S_OK;
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PPROPERTY pNewProperty = NULL;
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LPWSTR tempString = NULL;
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PPROPERTY pNewProperties = NULL;
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//
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// Allocate the string first
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//
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tempString = AllocADsStr(szPropertyName);
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if (!tempString)
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BAIL_ON_FAILURE(hr=E_OUTOFMEMORY);
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//
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// extend the property cache by adding a new property entry
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//
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pNewProperties = (PPROPERTY)ReallocADsMem(
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_pProperties,
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_cb,
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_cb + sizeof(PROPERTY)
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);
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if (!pNewProperties) {
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hr = E_OUTOFMEMORY;
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BAIL_ON_FAILURE(hr);
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}
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_pProperties = pNewProperties;
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pNewProperty = (PPROPERTY)((LPBYTE)_pProperties + _cb);
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//
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// Since the memory has already been allocated in tempString
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// just set the value/pointer now.
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//
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pNewProperty->szPropertyName = tempString;
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//
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// Update the index
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//
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_dwMaxProperties++;
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_cb += sizeof(PROPERTY);
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RRETURN(hr);
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error:
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if (tempString)
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FreeADsStr(tempString);
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RRETURN_EXP_IF_ERR(hr);
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}
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//+------------------------------------------------------------------------
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//
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// Function: CPropertyCache::updateproperty
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//
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// Synopsis:
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//
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//
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//
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// Arguments: [szPropertyName] --
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// [vaData] --
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//
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//-------------------------------------------------------------------------
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HRESULT
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CPropertyCache::
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updateproperty(
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LPWSTR szPropertyName,
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DWORD dwSyntaxId,
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DWORD dwNumValues,
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PNDSOBJECT pNdsObject,
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BOOL fExplicit
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)
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{
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HRESULT hr;
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DWORD dwIndex;
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PNDSOBJECT pNdsTempObject = NULL;
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PPROPERTY pThisProperty = NULL;
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hr = findproperty(
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szPropertyName,
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&dwIndex
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);
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BAIL_ON_FAILURE(hr);
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pThisProperty = _pProperties + dwIndex;
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if (!fExplicit) {
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if ((PROPERTY_FLAGS(pThisProperty) == CACHE_PROPERTY_MODIFIED) ||
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(PROPERTY_FLAGS(pThisProperty) == CACHE_PROPERTY_CLEARED)) {
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hr = S_OK;
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goto error;
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}
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}
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if (PROPERTY_NDSOBJECT(pThisProperty)) {
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NdsTypeFreeNdsObjects(
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PROPERTY_NDSOBJECT(pThisProperty),
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PROPERTY_NUMVALUES(pThisProperty)
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);
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PROPERTY_NDSOBJECT(pThisProperty) = NULL;
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}
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PROPERTY_SYNTAX(pThisProperty) = dwSyntaxId;
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PROPERTY_NUMVALUES(pThisProperty) = dwNumValues;
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hr = NdsTypeCopyConstruct(
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pNdsObject,
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dwNumValues,
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&pNdsTempObject
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);
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BAIL_ON_FAILURE(hr);
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PROPERTY_NDSOBJECT(pThisProperty) = pNdsTempObject;
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PROPERTY_FLAGS(pThisProperty) = CACHE_PROPERTY_INITIALIZED;
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error:
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RRETURN_EXP_IF_ERR(hr);
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}
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//+------------------------------------------------------------------------
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//
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// Function: CPropertyCache::findproperty
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//
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// Synopsis:
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//
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//
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//
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// Arguments: [szPropertyName] --
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// [pdwIndex] --
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//
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//-------------------------------------------------------------------------
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HRESULT
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CPropertyCache::
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findproperty(
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LPWSTR szPropertyName,
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PDWORD pdwIndex
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)
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{
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DWORD i = 0;
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PPROPERTY pThisProperty = NULL;
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for (i = 0; i < _dwMaxProperties; i++) {
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pThisProperty = _pProperties + i;
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if (!_wcsicmp(pThisProperty->szPropertyName, szPropertyName)) {
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*pdwIndex = i;
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RRETURN(S_OK);
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}
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}
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*pdwIndex = 0;
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RRETURN_EXP_IF_ERR(E_ADS_PROPERTY_NOT_FOUND);
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}
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//+------------------------------------------------------------------------
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//
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// Function: CPropertyCache::getproperty
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//
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// Synopsis:
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//
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//
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//
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// Arguments: [szPropertyName] -- Property to retrieve from the cache
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// [pvaData] -- Data returned in a variant
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//
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//-------------------------------------------------------------------------
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HRESULT
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CPropertyCache::
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getproperty(
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LPWSTR szPropertyName,
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PDWORD pdwSyntaxId,
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PDWORD pdwNumValues,
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PNDSOBJECT * ppNdsObject
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)
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{
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HRESULT hr;
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DWORD dwIndex = 0L;
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PPROPERTY pThisProperty = NULL;
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hr = findproperty(
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szPropertyName,
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&dwIndex
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);
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if (hr == E_ADS_PROPERTY_NOT_FOUND) {
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//
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// Now call the GetInfo function
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//
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hr = _pCoreADsObject->GetInfo(
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FALSE
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);
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BAIL_ON_FAILURE(hr);
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hr = findproperty(
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szPropertyName,
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&dwIndex
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);
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}
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BAIL_ON_FAILURE(hr);
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pThisProperty = _pProperties + dwIndex;
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if (PROPERTY_NDSOBJECT(pThisProperty)) {
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*pdwSyntaxId = (DWORD)PROPERTY_SYNTAX(pThisProperty);
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*pdwNumValues = (DWORD)PROPERTY_NUMVALUES(pThisProperty);
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hr = NdsTypeCopyConstruct(
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PROPERTY_NDSOBJECT(pThisProperty),
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PROPERTY_NUMVALUES(pThisProperty),
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ppNdsObject
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);
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BAIL_ON_FAILURE(hr);
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}else {
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*ppNdsObject = NULL;
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*pdwNumValues = 0;
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*pdwSyntaxId = 0;
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hr = E_FAIL;
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}
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error:
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RRETURN_EXP_IF_ERR(hr);
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}
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//+------------------------------------------------------------------------
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//
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// Function: CPropertyCache::putproperty
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//
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// Synopsis:
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//
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//
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//
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// Arguments: [szPropertyName] -- Clsid index
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// [vaData] -- Matching clsid returned in *pclsid
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//
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//-------------------------------------------------------------------------
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HRESULT
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CPropertyCache::
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putproperty(
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LPWSTR szPropertyName,
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DWORD dwFlags,
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DWORD dwSyntaxId,
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DWORD dwNumValues,
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PNDSOBJECT pNdsObject
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)
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{
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HRESULT hr;
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DWORD dwIndex = 0L;
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PNDSOBJECT pNdsTempObject = NULL;
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PPROPERTY pThisProperty = NULL;
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hr = findproperty(
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szPropertyName,
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&dwIndex
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);
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BAIL_ON_FAILURE(hr);
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pThisProperty = _pProperties + dwIndex;
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if (PROPERTY_NDSOBJECT(pThisProperty)) {
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NdsTypeFreeNdsObjects(
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PROPERTY_NDSOBJECT(pThisProperty),
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PROPERTY_NUMVALUES(pThisProperty)
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);
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PROPERTY_NDSOBJECT(pThisProperty) = NULL;
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}
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switch (dwFlags) {
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case CACHE_PROPERTY_MODIFIED:
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PROPERTY_SYNTAX(pThisProperty) = dwSyntaxId;
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PROPERTY_NUMVALUES(pThisProperty) = dwNumValues;
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hr = NdsTypeCopyConstruct(
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pNdsObject,
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dwNumValues,
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&pNdsTempObject
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);
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BAIL_ON_FAILURE(hr);
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PROPERTY_NDSOBJECT(pThisProperty) = pNdsTempObject;
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PROPERTY_FLAGS(pThisProperty) = CACHE_PROPERTY_MODIFIED;
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break;
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case CACHE_PROPERTY_CLEARED:
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PROPERTY_SYNTAX(pThisProperty) = dwSyntaxId;
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PROPERTY_NUMVALUES(pThisProperty) = 0;
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PROPERTY_NDSOBJECT(pThisProperty) = NULL;
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PROPERTY_FLAGS(pThisProperty) = CACHE_PROPERTY_CLEARED;
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break;
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case CACHE_PROPERTY_APPENDED:
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PROPERTY_SYNTAX(pThisProperty) = dwSyntaxId;
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PROPERTY_NUMVALUES(pThisProperty) = dwNumValues;
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hr = NdsTypeCopyConstruct(
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pNdsObject,
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dwNumValues,
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&pNdsTempObject
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);
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BAIL_ON_FAILURE(hr);
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PROPERTY_NDSOBJECT(pThisProperty) = pNdsTempObject;
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PROPERTY_FLAGS(pThisProperty) = CACHE_PROPERTY_APPENDED;
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break;
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case CACHE_PROPERTY_DELETED:
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PROPERTY_SYNTAX(pThisProperty) = dwSyntaxId;
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PROPERTY_NUMVALUES(pThisProperty) = dwNumValues;
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hr = NdsTypeCopyConstruct(
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pNdsObject,
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dwNumValues,
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&pNdsTempObject
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);
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BAIL_ON_FAILURE(hr);
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PROPERTY_NDSOBJECT(pThisProperty) = pNdsTempObject;
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PROPERTY_FLAGS(pThisProperty) = CACHE_PROPERTY_DELETED;
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break;
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}
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error:
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RRETURN_EXP_IF_ERR(hr);
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}
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//+------------------------------------------------------------------------
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//
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// Function: CPropertyCache
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//
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// Synopsis:
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//
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//
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//
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// Arguments:
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//
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//
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//-------------------------------------------------------------------------
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CPropertyCache::
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CPropertyCache():
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_dwMaxProperties(0),
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_dwCurrentIndex(0),
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_pProperties(NULL),
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_cb(0),
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_pCoreADsObject(NULL)
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{
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}
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//+------------------------------------------------------------------------
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//
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// Function: ~CPropertyCache
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//
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// Synopsis:
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//
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//
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//
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// Arguments:
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//
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//
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//-------------------------------------------------------------------------
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CPropertyCache::
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~CPropertyCache()
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{
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DWORD i = 0;
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PPROPERTY pThisProperty = NULL;
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if (_pProperties) {
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for (i = 0; i < _dwMaxProperties; i++) {
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pThisProperty = _pProperties + i;
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if (pThisProperty->szPropertyName){
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FreeADsStr(pThisProperty->szPropertyName);
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pThisProperty->szPropertyName = NULL;
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}
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if (PROPERTY_NDSOBJECT(pThisProperty)) {
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NdsTypeFreeNdsObjects(
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PROPERTY_NDSOBJECT(pThisProperty),
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PROPERTY_NUMVALUES(pThisProperty)
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);
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PROPERTY_NDSOBJECT(pThisProperty) = NULL;
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}
|
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}
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|
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FreeADsMem(_pProperties);
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}
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}
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|
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//+------------------------------------------------------------------------
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//
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// Function:
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//
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// Synopsis:
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//
|
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//
|
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//
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// Arguments:
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//
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//
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//-------------------------------------------------------------------------
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HRESULT
|
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CPropertyCache::
|
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createpropertycache(
|
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CCoreADsObject FAR * pCoreADsObject,
|
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CPropertyCache FAR *FAR * ppPropertyCache
|
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)
|
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{
|
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CPropertyCache FAR * pPropertyCache = NULL;
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|
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pPropertyCache = new CPropertyCache();
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|
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if (!pPropertyCache) {
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RRETURN_EXP_IF_ERR(E_OUTOFMEMORY);
|
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}
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|
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pPropertyCache->_pCoreADsObject = pCoreADsObject;
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|
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*ppPropertyCache = pPropertyCache;
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|
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RRETURN(S_OK);
|
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}
|
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|
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//+------------------------------------------------------------------------
|
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//
|
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// Function:
|
|
//
|
|
// Synopsis:
|
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//
|
|
//
|
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//
|
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// Arguments:
|
|
//
|
|
//
|
|
//-------------------------------------------------------------------------
|
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|
|
HRESULT
|
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CPropertyCache::
|
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unmarshallproperty(
|
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LPWSTR szPropertyName,
|
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LPBYTE lpValue,
|
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DWORD dwNumValues,
|
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DWORD dwSyntaxId,
|
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BOOL fExplicit
|
|
)
|
|
{
|
|
|
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DWORD dwIndex = 0;
|
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HRESULT hr = S_OK;
|
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PNDSOBJECT pNdsObject = NULL;
|
|
|
|
hr = UnMarshallNDSToNDSSynId(
|
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dwSyntaxId,
|
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dwNumValues,
|
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lpValue,
|
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&pNdsObject
|
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);
|
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BAIL_ON_FAILURE(hr);
|
|
|
|
//
|
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// Find this property in the cache
|
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//
|
|
|
|
hr = findproperty(
|
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szPropertyName,
|
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&dwIndex
|
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);
|
|
|
|
//
|
|
// If this property does not exist in the
|
|
// cache, add this property into the cache.
|
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//
|
|
|
|
|
|
if (FAILED(hr)) {
|
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hr = addproperty(
|
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szPropertyName,
|
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dwSyntaxId
|
|
);
|
|
|
|
//
|
|
// If the operation fails for some reason
|
|
// move on to the next property
|
|
//
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
}
|
|
|
|
//
|
|
// Now update the property in the cache
|
|
//
|
|
|
|
hr = updateproperty(
|
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szPropertyName,
|
|
dwSyntaxId,
|
|
dwNumValues,
|
|
pNdsObject,
|
|
fExplicit
|
|
);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
|
|
|
|
|
|
error:
|
|
|
|
if (pNdsObject) {
|
|
NdsTypeFreeNdsObjects(
|
|
pNdsObject,
|
|
dwNumValues
|
|
);
|
|
|
|
}
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
}
|
|
|
|
|
|
HRESULT
|
|
CPropertyCache::
|
|
NDSUnMarshallProperties(
|
|
HANDLE hOperationData,
|
|
BOOL fExplicit
|
|
)
|
|
|
|
{
|
|
DWORD dwNumberOfEntries = 0L;
|
|
LPNDS_ATTR_INFO lpEntries = NULL;
|
|
HRESULT hr = S_OK;
|
|
DWORD i = 0;
|
|
DWORD dwStatus = 0L;
|
|
|
|
//
|
|
// Compute the number of attributes in the
|
|
// read buffer.
|
|
//
|
|
|
|
dwStatus = NwNdsGetAttrListFromBuffer(
|
|
hOperationData,
|
|
&dwNumberOfEntries,
|
|
&lpEntries
|
|
);
|
|
|
|
CHECK_AND_SET_EXTENDED_ERROR(dwStatus, hr);
|
|
|
|
for (i = 0; i < dwNumberOfEntries; i++) {
|
|
|
|
//
|
|
// unmarshall this property into the
|
|
// property cache
|
|
//
|
|
|
|
hr = unmarshallproperty(
|
|
lpEntries[i].szAttributeName,
|
|
lpEntries[i].lpValue,
|
|
lpEntries[i].dwNumberOfValues,
|
|
lpEntries[i].dwSyntaxId,
|
|
fExplicit
|
|
);
|
|
|
|
CONTINUE_ON_FAILURE(hr);
|
|
|
|
}
|
|
|
|
error:
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
HRESULT
|
|
CPropertyCache::
|
|
marshallproperty(
|
|
HANDLE hOperationData,
|
|
LPWSTR szPropertyName,
|
|
DWORD dwFlags,
|
|
LPBYTE lpValues,
|
|
DWORD dwNumValues,
|
|
DWORD dwSyntaxId
|
|
)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
DWORD dwStatus;
|
|
|
|
|
|
switch (dwFlags) {
|
|
|
|
case CACHE_PROPERTY_MODIFIED:
|
|
dwStatus = NwNdsPutInBuffer(
|
|
szPropertyName,
|
|
dwSyntaxId,
|
|
NULL,
|
|
0,
|
|
NDS_ATTR_CLEAR,
|
|
hOperationData
|
|
);
|
|
|
|
CHECK_AND_SET_EXTENDED_ERROR(dwStatus, hr);
|
|
|
|
dwStatus = NwNdsPutInBuffer(
|
|
szPropertyName,
|
|
dwSyntaxId,
|
|
lpValues,
|
|
dwNumValues,
|
|
NDS_ATTR_ADD,
|
|
hOperationData
|
|
);
|
|
|
|
CHECK_AND_SET_EXTENDED_ERROR(dwStatus, hr);
|
|
break;
|
|
|
|
case CACHE_PROPERTY_CLEARED:
|
|
|
|
dwStatus = NwNdsPutInBuffer(
|
|
szPropertyName,
|
|
dwSyntaxId,
|
|
NULL,
|
|
0,
|
|
NDS_ATTR_CLEAR,
|
|
hOperationData
|
|
);
|
|
|
|
CHECK_AND_SET_EXTENDED_ERROR(dwStatus, hr);
|
|
break;
|
|
|
|
|
|
case CACHE_PROPERTY_APPENDED:
|
|
dwStatus = NwNdsPutInBuffer(
|
|
szPropertyName,
|
|
dwSyntaxId,
|
|
lpValues,
|
|
dwNumValues,
|
|
NDS_ATTR_ADD_VALUE,
|
|
hOperationData
|
|
);
|
|
|
|
CHECK_AND_SET_EXTENDED_ERROR(dwStatus, hr);
|
|
break;
|
|
|
|
|
|
case CACHE_PROPERTY_DELETED:
|
|
dwStatus = NwNdsPutInBuffer(
|
|
szPropertyName,
|
|
dwSyntaxId,
|
|
lpValues,
|
|
dwNumValues,
|
|
NDS_ATTR_REMOVE_VALUE,
|
|
hOperationData
|
|
);
|
|
|
|
CHECK_AND_SET_EXTENDED_ERROR(dwStatus, hr);
|
|
break;
|
|
|
|
|
|
default:
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
#if DBG
|
|
|
|
NDSMarshallDebugOut((
|
|
DEB_TRACE,
|
|
"dwSyntaxId: %ld \n", dwSyntaxId
|
|
));
|
|
#endif
|
|
|
|
|
|
error:
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
|
|
}
|
|
|
|
HRESULT
|
|
CPropertyCache::
|
|
NDSMarshallProperties(
|
|
HANDLE hOperationData
|
|
)
|
|
{
|
|
|
|
HRESULT hr = S_OK;
|
|
DWORD i = 0;
|
|
PPROPERTY pThisProperty = NULL;
|
|
BYTE lpBuffer[2048];
|
|
|
|
for (i = 0; i < _dwMaxProperties ; i++) {
|
|
|
|
pThisProperty = _pProperties + i;
|
|
|
|
//
|
|
// Bypass any property that has not been
|
|
// modified
|
|
//
|
|
|
|
if (PROPERTY_FLAGS(pThisProperty) == 0) {
|
|
|
|
continue;
|
|
}
|
|
|
|
|
|
hr = MarshallNDSSynIdToNDS(
|
|
PROPERTY_SYNTAX(pThisProperty),
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty),
|
|
lpBuffer
|
|
);
|
|
CONTINUE_ON_FAILURE(hr);
|
|
|
|
|
|
hr = marshallproperty(
|
|
hOperationData,
|
|
PROPERTY_NAME(pThisProperty),
|
|
PROPERTY_FLAGS(pThisProperty),
|
|
lpBuffer,
|
|
PROPERTY_NUMVALUES(pThisProperty),
|
|
PROPERTY_SYNTAX(pThisProperty)
|
|
);
|
|
CONTINUE_ON_FAILURE(hr);
|
|
|
|
if (PROPERTY_NDSOBJECT(pThisProperty)) {
|
|
FreeMarshallMemory(
|
|
PROPERTY_SYNTAX(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty),
|
|
lpBuffer
|
|
);
|
|
|
|
NdsTypeFreeNdsObjects(
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty)
|
|
);
|
|
PROPERTY_NDSOBJECT(pThisProperty) = NULL;
|
|
}
|
|
|
|
wcscpy(pThisProperty->szPropertyName, TEXT(""));
|
|
PROPERTY_SYNTAX(pThisProperty) = 0;
|
|
PROPERTY_NUMVALUES(pThisProperty) = 0;
|
|
PROPERTY_FLAGS(pThisProperty) = CACHE_PROPERTY_INITIALIZED;
|
|
|
|
}
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
}
|
|
|
|
|
|
//+------------------------------------------------------------------------
|
|
//
|
|
// Function: CPropertyCache::getproperty
|
|
//
|
|
// Synopsis:
|
|
//
|
|
//
|
|
//
|
|
// Arguments: [szPropertyName] -- Property to retrieve from the cache
|
|
// [pvaData] -- Data returned in a variant
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
HRESULT
|
|
CPropertyCache::
|
|
unboundgetproperty(
|
|
LPWSTR szPropertyName,
|
|
PDWORD pdwSyntaxId,
|
|
PDWORD pdwNumValues,
|
|
PNDSOBJECT * ppNdsObject
|
|
)
|
|
{
|
|
HRESULT hr;
|
|
DWORD dwIndex = 0L;
|
|
PPROPERTY pThisProperty = NULL;
|
|
|
|
hr = findproperty(
|
|
szPropertyName,
|
|
&dwIndex
|
|
);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
pThisProperty = _pProperties + dwIndex;
|
|
|
|
if (PROPERTY_NDSOBJECT(pThisProperty)) {
|
|
|
|
*pdwSyntaxId = (DWORD)PROPERTY_SYNTAX(pThisProperty);
|
|
*pdwNumValues = (DWORD)PROPERTY_NUMVALUES(pThisProperty);
|
|
|
|
hr = NdsTypeCopyConstruct(
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty),
|
|
ppNdsObject
|
|
);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
}else {
|
|
|
|
*ppNdsObject = NULL;
|
|
*pdwNumValues = 0;
|
|
*pdwSyntaxId = 0;
|
|
//hr = E_FAIL;
|
|
|
|
}
|
|
|
|
error:
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
}
|
|
|
|
//+------------------------------------------------------------------------
|
|
//
|
|
// Function: ~CPropertyCache
|
|
//
|
|
// Synopsis:
|
|
//
|
|
//
|
|
//
|
|
// Arguments:
|
|
//
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
void
|
|
CPropertyCache::
|
|
flushpropcache()
|
|
{
|
|
DWORD i = 0;
|
|
PPROPERTY pThisProperty = NULL;
|
|
|
|
if (_pProperties) {
|
|
|
|
for (i = 0; i < _dwMaxProperties; i++) {
|
|
|
|
pThisProperty = _pProperties + i;
|
|
|
|
if (pThisProperty->szPropertyName) {
|
|
FreeADsStr(pThisProperty->szPropertyName);
|
|
pThisProperty->szPropertyName = NULL;
|
|
}
|
|
|
|
if (PROPERTY_NDSOBJECT(pThisProperty)) {
|
|
|
|
NdsTypeFreeNdsObjects(
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty)
|
|
);
|
|
PROPERTY_NDSOBJECT(pThisProperty) = NULL;
|
|
}
|
|
}
|
|
|
|
FreeADsMem(_pProperties);
|
|
}
|
|
|
|
//
|
|
// Reset the property cache
|
|
//
|
|
|
|
_pProperties = NULL;
|
|
_dwMaxProperties = 0;
|
|
_cb = 0;
|
|
_dwCurrentIndex = 0;
|
|
}
|
|
|
|
|
|
//+------------------------------------------------------------------------
|
|
//
|
|
// Function: CPropertyCache::getproperty
|
|
//
|
|
// Synopsis:
|
|
//
|
|
//
|
|
//
|
|
// Arguments: [szPropertyName] -- Property to retrieve from the cache
|
|
// [pvaData] -- Data returned in a variant
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
HRESULT
|
|
CPropertyCache::
|
|
unboundgetproperty(
|
|
DWORD dwIndex,
|
|
PDWORD pdwSyntaxId,
|
|
PDWORD pdwNumValues,
|
|
PNDSOBJECT * ppNdsObject
|
|
)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
PPROPERTY pThisProperty = NULL;
|
|
|
|
if (!_pProperties) {
|
|
RRETURN_EXP_IF_ERR(E_FAIL);
|
|
}
|
|
|
|
|
|
if (((LONG)dwIndex < 0) || dwIndex > (_dwMaxProperties - 1) )
|
|
RRETURN_EXP_IF_ERR(E_FAIL);
|
|
|
|
pThisProperty = _pProperties + dwIndex;
|
|
|
|
if (PROPERTY_NDSOBJECT(pThisProperty)) {
|
|
|
|
*pdwSyntaxId = (DWORD)PROPERTY_SYNTAX(pThisProperty);
|
|
*pdwNumValues = (DWORD)PROPERTY_NUMVALUES(pThisProperty);
|
|
|
|
hr = NdsTypeCopyConstruct(
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty),
|
|
ppNdsObject
|
|
);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
}else {
|
|
|
|
*ppNdsObject = NULL;
|
|
*pdwNumValues = 0;
|
|
*pdwSyntaxId = 0;
|
|
//hr = E_FAIL;
|
|
|
|
}
|
|
|
|
error:
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
}
|
|
|
|
BOOL
|
|
CPropertyCache::
|
|
index_valid(
|
|
)
|
|
{
|
|
//
|
|
// NOTE: - _dwCurrentIndex is of type DWORD which is unsigned long.
|
|
// - _dwMaxProperties -1 is also of type unsigned long (so
|
|
// if _dwMaxProperites = 0, _dwMaxproperties -1 = 0xffffff)
|
|
// - comparision checking must taken the above into account
|
|
// for proper checking
|
|
//
|
|
|
|
if ( (_dwMaxProperties==0) || (_dwCurrentIndex >_dwMaxProperties-1) )
|
|
return(FALSE);
|
|
else
|
|
return(TRUE);
|
|
}
|
|
|
|
|
|
BOOL
|
|
CPropertyCache::
|
|
index_valid(
|
|
DWORD dwIndex
|
|
)
|
|
{
|
|
//
|
|
// NOTE: - _dwIndex is of type DWORD which is unsigned long.
|
|
// - _dwMaxProperties -1 is also of type unsigned long (so
|
|
// if _dwMaxProperites = 0, _dwMaxproperties -1 = 0xffffff)
|
|
// - comparision checking must taken the above into account
|
|
// for proper checking
|
|
//
|
|
|
|
if ( (_dwMaxProperties==0) || (dwIndex >_dwMaxProperties-1) )
|
|
return(FALSE);
|
|
else
|
|
return(TRUE);
|
|
|
|
}
|
|
|
|
void
|
|
CPropertyCache::
|
|
reset_propindex(
|
|
)
|
|
{
|
|
_dwCurrentIndex = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
HRESULT
|
|
CPropertyCache::
|
|
skip_propindex(
|
|
DWORD dwElements
|
|
)
|
|
{
|
|
DWORD newIndex = _dwCurrentIndex + dwElements;
|
|
|
|
if (!index_valid())
|
|
RRETURN_EXP_IF_ERR(E_FAIL);
|
|
|
|
//
|
|
// - allow current index to go from within range to out of range by 1
|
|
// - by 1 since initial state is out of range by 1
|
|
//
|
|
|
|
if ( newIndex > _dwMaxProperties )
|
|
RRETURN_EXP_IF_ERR(E_FAIL);
|
|
|
|
_dwCurrentIndex = newIndex;
|
|
RRETURN(S_OK);
|
|
}
|
|
|
|
|
|
HRESULT
|
|
CPropertyCache::
|
|
get_PropertyCount(
|
|
PDWORD pdwMaxProperties
|
|
)
|
|
{
|
|
*pdwMaxProperties = _dwMaxProperties;
|
|
|
|
RRETURN(S_OK);
|
|
}
|
|
|
|
|
|
DWORD
|
|
CPropertyCache::
|
|
get_CurrentIndex(
|
|
)
|
|
{
|
|
return(_dwCurrentIndex);
|
|
}
|
|
|
|
|
|
LPWSTR
|
|
CPropertyCache::
|
|
get_CurrentPropName(
|
|
)
|
|
|
|
{
|
|
PPROPERTY pThisProperty = NULL;
|
|
|
|
if (!index_valid())
|
|
return(NULL);
|
|
|
|
pThisProperty = _pProperties + _dwCurrentIndex;
|
|
|
|
return(PROPERTY_NAME(pThisProperty));
|
|
}
|
|
|
|
|
|
LPWSTR
|
|
CPropertyCache::
|
|
get_PropName(
|
|
DWORD dwIndex
|
|
)
|
|
|
|
{
|
|
PPROPERTY pThisProperty = NULL;
|
|
|
|
if (!index_valid(dwIndex))
|
|
return(NULL);
|
|
|
|
pThisProperty = _pProperties + dwIndex;
|
|
|
|
return(PROPERTY_NAME(pThisProperty));
|
|
}
|
|
|
|
|
|
|
|
HRESULT
|
|
CPropertyCache::
|
|
deleteproperty(
|
|
DWORD dwIndex
|
|
)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
PPROPERTY pNewProperties = NULL;
|
|
PPROPERTY pThisProperty = _pProperties + dwIndex;
|
|
|
|
if (!index_valid(dwIndex)) {
|
|
hr = E_FAIL;
|
|
BAIL_ON_FAILURE(hr);
|
|
}
|
|
|
|
if (_dwMaxProperties == 1) {
|
|
//
|
|
// Deleting everything
|
|
//
|
|
if (PROPERTY_NDSOBJECT(pThisProperty)) {
|
|
NdsTypeFreeNdsObjects(
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty)
|
|
);
|
|
PROPERTY_NDSOBJECT(pThisProperty) = NULL;
|
|
}
|
|
|
|
FreeADsMem(_pProperties);
|
|
_pProperties = NULL;
|
|
_dwMaxProperties = 0;
|
|
_cb = 0;
|
|
//
|
|
// Reset the current index just in case
|
|
//
|
|
_dwCurrentIndex = 0;
|
|
RRETURN(hr);
|
|
}
|
|
|
|
pNewProperties = (PPROPERTY)AllocADsMem(
|
|
_cb - sizeof(PROPERTY)
|
|
);
|
|
if (!pNewProperties) {
|
|
hr = E_OUTOFMEMORY;
|
|
BAIL_ON_FAILURE(hr);
|
|
}
|
|
|
|
//
|
|
// Copying the memory before the deleted item
|
|
//
|
|
if (dwIndex != 0) {
|
|
memcpy( pNewProperties,
|
|
_pProperties,
|
|
dwIndex * sizeof(PROPERTY));
|
|
}
|
|
|
|
//
|
|
// Copying the memory following the deleted item
|
|
//
|
|
if (dwIndex != (_dwMaxProperties-1)) {
|
|
memcpy( pNewProperties + dwIndex,
|
|
_pProperties + dwIndex + 1,
|
|
(_dwMaxProperties - dwIndex - 1) * sizeof(PROPERTY));
|
|
}
|
|
|
|
if (PROPERTY_NDSOBJECT(pThisProperty)) {
|
|
NdsTypeFreeNdsObjects(
|
|
PROPERTY_NDSOBJECT(pThisProperty),
|
|
PROPERTY_NUMVALUES(pThisProperty)
|
|
);
|
|
PROPERTY_NDSOBJECT(pThisProperty) = NULL;
|
|
}
|
|
FreeADsMem(_pProperties);
|
|
_pProperties = pNewProperties;
|
|
_dwMaxProperties--;
|
|
_cb -= sizeof(PROPERTY);
|
|
//
|
|
// Reset the current index if necesary so we do not skip a property.
|
|
//
|
|
if (_dwCurrentIndex > dwIndex) {
|
|
_dwCurrentIndex--;
|
|
}
|
|
error:
|
|
|
|
RRETURN_EXP_IF_ERR(hr);
|
|
}
|
|
|