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2183 lines
52 KiB
2183 lines
52 KiB
/*===================================================================
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Microsoft Denali
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Microsoft Confidential.
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Copyright 1997 Microsoft Corporation. All Rights Reserved.
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Component: MetaUtil object
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File: MetaSchm.cpp
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Owner: t-BrianM
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This file contains implementation of the CMetaSchemaTable object and
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other schema related objects.
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The CMetaSchemaTable object has COM style reference counting so it
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can service objects created by CMetaUtil. I didn't make it a full
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blown COM object because all of the class stuff would be a pain to
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export.
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To reduce the overhead of maintaining this object (which may or
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may not be used), all information is loaded on demand, then set
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dirty or unloaded when portions of the metabase associated with it
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are modified.
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===================================================================*/
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#include "stdafx.h"
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#include "MetaUtil.h"
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#include "MUtilObj.h"
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#include "MetaSchm.h"
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/*------------------------------------------------------------------
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* C P r o p I n f o
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*/
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/*===================================================================
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CPropInfo::Init
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Constructor
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Parameters:
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dwId Id of property
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Returns:
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S_OK on success
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===================================================================*/
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HRESULT CPropInfo::Init(DWORD dwId)
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{
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m_dwId = dwId;
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return S_OK;
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}
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/*===================================================================
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CPropInfo::SetName
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Sets the property name.
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Parameters:
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tszName Name of property
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Returns:
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E_OUTOFMEMORY if allocation fails
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S_OK on success
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===================================================================*/
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HRESULT CPropInfo::SetName(LPCTSTR tszName)
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{
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ASSERT_STRING(tszName);
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ASSERT(m_tszName == NULL); // m_tszName not yet set
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m_tszName = new TCHAR[_tcslen(tszName) + 1];
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if (m_tszName == NULL) {
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return E_OUTOFMEMORY;
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}
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_tcscpy(m_tszName, tszName);
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return S_OK;
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}
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/*===================================================================
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CPropInfo::SetTypeInfo
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Sets the property name.
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Parameters:
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pType PropValue structure containing type information.
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Returns:
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E_OUTOFMEMORY if allocation fails
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S_OK on success
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===================================================================*/
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HRESULT CPropInfo::SetTypeInfo(PropValue *pType)
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{
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ASSERT_POINTER(pType, PropValue);
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ASSERT(m_pType == NULL); // m_pType not yet set
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m_pType = new PropValue;
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if (m_pType == NULL) {
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return E_OUTOFMEMORY;
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}
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memcpy(m_pType, pType, sizeof(PropValue));
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return S_OK;
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}
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/*------------------------------------------------------------------
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* C P r o p I n f o T a b l e
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*/
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/*===================================================================
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CPropInfoTable::CPropInfoTable
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Constructor
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Parameters:
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None
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Returns:
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Nothing
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===================================================================*/
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CPropInfoTable::CPropInfoTable() : m_fLoaded(FALSE)
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{
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// Clear the hash tables
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memset(m_rgCPropIdTable, 0, PROPERTY_HASH_SIZE * sizeof(CPropInfo *));
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memset(m_rgCPropNameTable, 0, PROPERTY_HASH_SIZE * sizeof(CPropInfo *));
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}
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/*===================================================================
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CPropInfoTable::~CPropInfoTable
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Destructor
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Parameters:
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None
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Returns:
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Nothing
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===================================================================*/
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CPropInfoTable::~CPropInfoTable()
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{
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if (m_fLoaded) {
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Unload();
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}
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}
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/*===================================================================
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CPropInfoTable::Load
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Loads properties from the "_Machine_/Schema/Properties" key into the
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property information table. On failure, recovers by unloading
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everything.
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Parameters:
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pIMeta ATL Smart pointer to the metabase
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hMDComp Open metabase handle to "_Machine_" key
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Returns:
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E_OUTOFMEMORY on allocation failure
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S_OK on success
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===================================================================*/
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HRESULT CPropInfoTable::Load(CComPtr<IMSAdminBase> &pIMeta,
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METADATA_HANDLE hMDComp)
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{
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//If it's already loaded, unload then reload
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if (m_fLoaded) {
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Unload();
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}
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USES_CONVERSION;
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HRESULT hr;
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int iDataIndex;
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METADATA_RECORD mdrDataRec;
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DWORD dwReqDataLen;
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DWORD dwReturnBufLen;
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UCHAR *lpReturnBuf = NULL;
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unsigned int uiLoc;
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CPropInfo *pCNewProp;
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METADATA_HANDLE hMDNames = NULL;
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METADATA_HANDLE hMDTypes = NULL;
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//Setup the return buffer
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dwReturnBufLen = 1024;
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lpReturnBuf = new UCHAR[dwReturnBufLen];
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if (lpReturnBuf == NULL)
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return E_OUTOFMEMORY;
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// Open the Schema/Properties/Names subkey
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hr = pIMeta->OpenKey(hMDComp,
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L"Schema/Properties/Names",
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METADATA_PERMISSION_READ,
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MUTIL_OPEN_KEY_TIMEOUT,
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&hMDNames);
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if (FAILED(hr)) {
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delete lpReturnBuf;
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return hr;
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};
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// For each name
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iDataIndex = 0;
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mdrDataRec.dwMDIdentifier = 0;
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mdrDataRec.dwMDAttributes = METADATA_NO_ATTRIBUTES;
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mdrDataRec.dwMDUserType = ALL_METADATA;
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mdrDataRec.dwMDDataType = ALL_METADATA;
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mdrDataRec.dwMDDataLen = dwReturnBufLen;
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mdrDataRec.pbMDData = (PBYTE) lpReturnBuf;
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mdrDataRec.dwMDDataTag = 0;
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hr = pIMeta->EnumData(hMDNames,
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NULL,
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&mdrDataRec,
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iDataIndex,
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&dwReqDataLen);
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while (SUCCEEDED(hr)) {
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// Make sure we got a string
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if (mdrDataRec.dwMDDataType != STRING_METADATA) {
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hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
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goto LError;
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}
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// Create the property object
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pCNewProp = new CPropInfo;
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if (pCNewProp == NULL) {
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hr = E_OUTOFMEMORY;
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goto LError;
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}
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hr = pCNewProp->Init(mdrDataRec.dwMDIdentifier);
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if (FAILED(hr)) {
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delete pCNewProp;
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goto LError;
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}
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hr = pCNewProp->SetName(W2T(reinterpret_cast<LPWSTR> (lpReturnBuf)));
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if (FAILED(hr)) {
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delete pCNewProp;
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goto LError;
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}
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// Add it to the Id hash table
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uiLoc = IdHash(mdrDataRec.dwMDIdentifier);
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pCNewProp->m_pCIdHashNext = m_rgCPropIdTable[uiLoc];
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m_rgCPropIdTable[uiLoc] = pCNewProp;
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// Add it to the Name hash table
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uiLoc = NameHash(pCNewProp->m_tszName);
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pCNewProp->m_pCNameHashNext = m_rgCPropNameTable[uiLoc];
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m_rgCPropNameTable[uiLoc] = pCNewProp;
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iDataIndex++;
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mdrDataRec.dwMDIdentifier = 0;
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mdrDataRec.dwMDAttributes = METADATA_NO_ATTRIBUTES;
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mdrDataRec.dwMDUserType = ALL_METADATA;
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mdrDataRec.dwMDDataType = ALL_METADATA;
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mdrDataRec.dwMDDataLen = dwReturnBufLen;
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mdrDataRec.pbMDData = (PBYTE) lpReturnBuf;
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mdrDataRec.dwMDDataTag = 0;
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hr = pIMeta->EnumData(hMDNames,
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NULL,
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&mdrDataRec,
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iDataIndex,
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&dwReqDataLen);
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}
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// Make sure we ran out of items
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if (HRESULT_CODE(hr) != ERROR_NO_MORE_ITEMS) {
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goto LError;
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}
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// Close the Schema/Properties/Names sub-key
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pIMeta->CloseKey(hMDNames);
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hMDNames = NULL;
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// Open the Schema/Properties/Types sub-key
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hr = pIMeta->OpenKey(hMDComp,
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L"Schema/Properties/Types",
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METADATA_PERMISSION_READ,
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MUTIL_OPEN_KEY_TIMEOUT,
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&hMDTypes);
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if (FAILED(hr)) {
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goto LError;
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};
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// For each type
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iDataIndex = 0;
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mdrDataRec.dwMDIdentifier = 0;
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mdrDataRec.dwMDAttributes = METADATA_NO_ATTRIBUTES;
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mdrDataRec.dwMDUserType = ALL_METADATA;
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mdrDataRec.dwMDDataType = ALL_METADATA;
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mdrDataRec.dwMDDataLen = dwReturnBufLen;
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mdrDataRec.pbMDData = (PBYTE) lpReturnBuf;
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mdrDataRec.dwMDDataTag = 0;
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hr = pIMeta->EnumData(hMDTypes,
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NULL,
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&mdrDataRec,
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iDataIndex,
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&dwReqDataLen);
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while (SUCCEEDED(hr)) {
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// Make sure we got binary data
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if (mdrDataRec.dwMDDataType != BINARY_METADATA) {
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hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
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goto LError;
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}
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// Look for an existing property object for this Id
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pCNewProp = GetPropInfo(mdrDataRec.dwMDIdentifier);
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if (pCNewProp == NULL) {
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// Create the property object
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pCNewProp = new CPropInfo;
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if (pCNewProp == NULL) {
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hr = E_OUTOFMEMORY;
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goto LError;
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}
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hr = pCNewProp->Init(mdrDataRec.dwMDIdentifier);
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if (FAILED(hr)) {
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delete pCNewProp;
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goto LError;
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}
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// Add it to the Id hash table
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uiLoc = IdHash(mdrDataRec.dwMDIdentifier);
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pCNewProp->m_pCIdHashNext = m_rgCPropIdTable[uiLoc];
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m_rgCPropIdTable[uiLoc] = pCNewProp;
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}
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// Add type information to the property object
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pCNewProp->SetTypeInfo(reinterpret_cast<PropValue *> (lpReturnBuf));
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iDataIndex++;
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mdrDataRec.dwMDIdentifier = 0;
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mdrDataRec.dwMDAttributes = METADATA_NO_ATTRIBUTES;
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mdrDataRec.dwMDUserType = ALL_METADATA;
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mdrDataRec.dwMDDataType = ALL_METADATA;
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mdrDataRec.dwMDDataLen = dwReturnBufLen;
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mdrDataRec.pbMDData = (PBYTE) lpReturnBuf;
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mdrDataRec.dwMDDataTag = 0;
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hr = pIMeta->EnumData(hMDTypes,
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NULL,
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&mdrDataRec,
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iDataIndex,
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&dwReqDataLen);
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}
|
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// Make sure we ran out of items
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if (HRESULT_CODE(hr) != ERROR_NO_MORE_ITEMS) {
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goto LError;
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}
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// Close the Schema/Properties/Types sub-key
|
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pIMeta->CloseKey(hMDTypes);
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hMDTypes = NULL;
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|
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delete lpReturnBuf;
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m_fLoaded = TRUE;
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return S_OK;
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LError:
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if (hMDNames != NULL) {
|
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pIMeta->CloseKey(hMDNames);
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}
|
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if (hMDTypes != NULL) {
|
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pIMeta->CloseKey(hMDTypes);
|
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}
|
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if (lpReturnBuf != NULL) {
|
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delete lpReturnBuf;
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}
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|
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// Cleanup the entries we loaded
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Unload();
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return hr;
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}
|
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/*===================================================================
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CPropInfoTable::Unload
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Unloads the property information table.
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Parameters:
|
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None
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Returns:
|
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Nothing
|
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===================================================================*/
|
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void CPropInfoTable::Unload()
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{
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int iIndex;
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CPropInfo *pCDeleteProp;
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//Clear the Name table
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memset(m_rgCPropNameTable, 0, PROPERTY_HASH_SIZE * sizeof(CPropInfo *));
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|
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// For each Id hash table entry
|
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for (iIndex =0; iIndex < PROPERTY_HASH_SIZE; iIndex++) {
|
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// While the entry is not empty
|
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while (m_rgCPropIdTable[iIndex] != NULL) {
|
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// Nuke the first table entry
|
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pCDeleteProp = m_rgCPropIdTable[iIndex];
|
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m_rgCPropIdTable[iIndex] = pCDeleteProp->m_pCIdHashNext;
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delete pCDeleteProp;
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}
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}
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m_fLoaded = FALSE;
|
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}
|
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|
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/*===================================================================
|
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CPropInfoTable::GetPropInfo
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Gets property information from the table based on property id
|
|
|
|
Parameters:
|
|
dwId Id of property to get
|
|
|
|
Returns:
|
|
NULL if property not found or error
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Pointer to CPropInfo class on success
|
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===================================================================*/
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CPropInfo *CPropInfoTable::GetPropInfo(DWORD dwId)
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{
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CPropInfo *pCCurProp;
|
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|
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// Go to the table location
|
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pCCurProp = m_rgCPropIdTable[IdHash(dwId)];
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|
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// Look at all of the entries
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while ((pCCurProp != NULL) && (pCCurProp->m_dwId != dwId)) {
|
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pCCurProp = pCCurProp->m_pCIdHashNext;
|
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}
|
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|
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return pCCurProp; // Will be NULL if not found
|
|
}
|
|
|
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/*===================================================================
|
|
CPropInfoTable::GetPropInfo
|
|
|
|
Gets property information from the table based on property name.
|
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Case insensitive.
|
|
|
|
Parameters:
|
|
tszName Name of property to get
|
|
|
|
Returns:
|
|
NULL if property not found or error
|
|
Pointer to CPropInfo class on success
|
|
===================================================================*/
|
|
CPropInfo *CPropInfoTable::GetPropInfo(LPCTSTR tszName)
|
|
{
|
|
CPropInfo *pCCurProp;
|
|
|
|
// Go to the table location
|
|
pCCurProp = m_rgCPropNameTable[NameHash(tszName)];
|
|
|
|
// Look at all of the entries
|
|
while ((pCCurProp != NULL) &&
|
|
(_tcsicmp(pCCurProp->m_tszName, tszName) != 0)) {
|
|
pCCurProp = pCCurProp->m_pCNameHashNext;
|
|
}
|
|
|
|
return pCCurProp; // Will be NULL if not found
|
|
}
|
|
|
|
/*===================================================================
|
|
CPropInfoTable::NameHash
|
|
|
|
Private function to get a hash value from a property name for the
|
|
name table. Case insensitive.
|
|
|
|
Parameters:
|
|
tszName Name to hash
|
|
|
|
Returns:
|
|
Hash value of name
|
|
===================================================================*/
|
|
unsigned int CPropInfoTable::NameHash(LPCTSTR tszName)
|
|
{
|
|
ASSERT_STRING(tszName);
|
|
|
|
unsigned int uiSum;
|
|
unsigned int uiIndex;
|
|
|
|
uiSum = 0;
|
|
for (uiIndex=0; uiIndex < _tcslen(tszName); uiIndex++) {
|
|
uiSum += _totlower(tszName[uiIndex]);
|
|
}
|
|
|
|
return (uiSum % PROPERTY_HASH_SIZE);
|
|
}
|
|
|
|
/*------------------------------------------------------------------
|
|
* C C l a s s P r o p I n f o
|
|
*/
|
|
|
|
// Everything is inline
|
|
|
|
/*------------------------------------------------------------------
|
|
* C C l a s s I n f o
|
|
*/
|
|
|
|
/*===================================================================
|
|
CClassInfo::CClassInfo
|
|
|
|
Constructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CClassInfo::CClassInfo() : m_tszName(NULL),
|
|
m_pCHashNext(NULL),
|
|
m_fLoaded(FALSE),
|
|
m_pCOptionalPropList(NULL),
|
|
m_pCMandatoryPropList(NULL)
|
|
{
|
|
// Clear the hash table
|
|
memset(m_rgCPropTable, 0, CLASS_PROPERTY_HASH_SIZE * sizeof(CClassPropInfo *));
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfo::Init
|
|
|
|
Constructor
|
|
|
|
Parameters:
|
|
tszName Name of the class
|
|
|
|
Returns:
|
|
E_OUTOFMEMORY on allocation failure
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CClassInfo::Init(LPCTSTR tszName)
|
|
{
|
|
ASSERT_STRING(tszName);
|
|
|
|
m_tszName = new TCHAR[_tcslen(tszName) + 1];
|
|
if (m_tszName == NULL) {
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
_tcscpy(m_tszName, tszName);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfo::~CClassInfo
|
|
|
|
Destructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CClassInfo::~CClassInfo()
|
|
{
|
|
Unload();
|
|
|
|
if (m_tszName != NULL) {
|
|
delete m_tszName;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfo::Load
|
|
|
|
Loads class properties from the "_Machine_/Schema/Classes/_Class_/Mandatory"
|
|
and "_Machine_/Schema/Classes/_Class_/Optional" keys into the class
|
|
property information table, mandatory list and optional list. On
|
|
failure, recovers by unloading everything.
|
|
|
|
Parameters:
|
|
pIMeta ATL Smart pointer to the metabase
|
|
hMDClasses Open metabase handle to "_Machine_/Schema/Classes" key
|
|
|
|
Returns:
|
|
E_OUTOFMEMORY on allocation failure
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CClassInfo::Load(CComPtr<IMSAdminBase> &pIMeta,
|
|
METADATA_HANDLE hMDClasses)
|
|
{
|
|
USES_CONVERSION;
|
|
HRESULT hr;
|
|
|
|
//If it's already loaded, unload then reload
|
|
if (m_fLoaded) {
|
|
Unload();
|
|
}
|
|
|
|
// Open the class key
|
|
METADATA_HANDLE hMDClass = NULL;
|
|
hr = pIMeta->OpenKey(hMDClasses,
|
|
T2W(m_tszName),
|
|
METADATA_PERMISSION_READ,
|
|
1000,
|
|
&hMDClass);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
}
|
|
|
|
// Load the class properties
|
|
METADATA_HANDLE hMDClassProp = NULL;
|
|
int iDataIndex;
|
|
METADATA_RECORD mdr;
|
|
DWORD dwReqDataLen;
|
|
DWORD dwReturnBufLen;
|
|
UCHAR *lpReturnBuf = NULL;
|
|
unsigned int uiLoc;
|
|
CClassPropInfo *pCNewClassProp;
|
|
|
|
//Setup the return buffer
|
|
dwReturnBufLen = 1024;
|
|
lpReturnBuf = new UCHAR[dwReturnBufLen];
|
|
if (lpReturnBuf == NULL) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto LError;
|
|
}
|
|
|
|
|
|
// Load the mandatory class properties
|
|
// Open the Mandatory key
|
|
hr = pIMeta->OpenKey(hMDClass,
|
|
L"Mandatory",
|
|
METADATA_PERMISSION_READ,
|
|
1000,
|
|
&hMDClassProp);
|
|
if (FAILED(hr)) {
|
|
goto LError;
|
|
}
|
|
|
|
// For each Mandatory property
|
|
iDataIndex = 0;
|
|
mdr.dwMDIdentifier = 0;
|
|
mdr.dwMDAttributes = METADATA_NO_ATTRIBUTES;
|
|
mdr.dwMDUserType = ALL_METADATA;
|
|
mdr.dwMDDataType = ALL_METADATA;
|
|
mdr.dwMDDataLen = dwReturnBufLen;
|
|
mdr.pbMDData = (PBYTE) lpReturnBuf;
|
|
mdr.dwMDDataTag = 0;
|
|
hr = pIMeta->EnumData(hMDClassProp,
|
|
NULL,
|
|
&mdr,
|
|
iDataIndex,
|
|
&dwReqDataLen);
|
|
while (SUCCEEDED(hr)|| (HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER)) {
|
|
|
|
// Handle insufficent buffer errors
|
|
if ((HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER)) {
|
|
// Allocate more memory
|
|
delete lpReturnBuf;
|
|
dwReturnBufLen = dwReqDataLen;
|
|
lpReturnBuf = new UCHAR[dwReturnBufLen];
|
|
if (lpReturnBuf == NULL) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto LError;
|
|
}
|
|
// Loop again
|
|
hr = S_OK;
|
|
}
|
|
else { //Buffer is big enough, proceed to add the class property
|
|
// Create the Class Property object
|
|
pCNewClassProp = new CClassPropInfo;
|
|
if (pCNewClassProp == NULL) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto LError;
|
|
}
|
|
hr = pCNewClassProp->Init(mdr.dwMDIdentifier, TRUE);
|
|
if (FAILED(hr)) {
|
|
delete pCNewClassProp;
|
|
goto LError;
|
|
}
|
|
|
|
//Add it to the mandatory list
|
|
pCNewClassProp->m_pCListNext = m_pCMandatoryPropList;
|
|
m_pCMandatoryPropList = pCNewClassProp;
|
|
|
|
//Add it to the hash table
|
|
uiLoc = Hash(mdr.dwMDIdentifier);
|
|
pCNewClassProp->m_pCHashNext = m_rgCPropTable[uiLoc];
|
|
m_rgCPropTable[uiLoc] = pCNewClassProp;
|
|
|
|
iDataIndex++;
|
|
}
|
|
|
|
mdr.dwMDIdentifier = 0;
|
|
mdr.dwMDAttributes = METADATA_NO_ATTRIBUTES;
|
|
mdr.dwMDUserType = ALL_METADATA;
|
|
mdr.dwMDDataType = ALL_METADATA;
|
|
mdr.dwMDDataLen = dwReturnBufLen;
|
|
mdr.pbMDData = (PBYTE) lpReturnBuf;
|
|
mdr.dwMDDataTag = 0;
|
|
hr = pIMeta->EnumData(hMDClassProp,
|
|
NULL,
|
|
&mdr,
|
|
iDataIndex,
|
|
&dwReqDataLen);
|
|
}
|
|
|
|
// Make sure we ran out of items
|
|
if (HRESULT_CODE(hr) != ERROR_NO_MORE_ITEMS) {
|
|
goto LError;
|
|
}
|
|
|
|
// Close the Mandatory key
|
|
pIMeta->CloseKey(hMDClassProp);
|
|
hMDClassProp = NULL;
|
|
|
|
|
|
// Load the optional class properties
|
|
// Open the Optional key
|
|
hr = pIMeta->OpenKey(hMDClass,
|
|
L"Optional",
|
|
METADATA_PERMISSION_READ,
|
|
1000,
|
|
&hMDClassProp);
|
|
if (FAILED(hr)) {
|
|
goto LError;
|
|
}
|
|
|
|
// For each Optional property
|
|
iDataIndex = 0;
|
|
mdr.dwMDIdentifier = 0;
|
|
mdr.dwMDAttributes = METADATA_NO_ATTRIBUTES;
|
|
mdr.dwMDUserType = ALL_METADATA;
|
|
mdr.dwMDDataType = ALL_METADATA;
|
|
mdr.dwMDDataLen = dwReturnBufLen;
|
|
mdr.pbMDData = (PBYTE) lpReturnBuf;
|
|
mdr.dwMDDataTag = 0;
|
|
hr = pIMeta->EnumData(hMDClassProp,
|
|
NULL,
|
|
&mdr,
|
|
iDataIndex,
|
|
&dwReqDataLen);
|
|
while (SUCCEEDED(hr)|| (HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER)) {
|
|
|
|
// Handle insufficent buffer errors
|
|
if ((HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER)) {
|
|
// Allocate more memory
|
|
delete lpReturnBuf;
|
|
dwReturnBufLen = dwReqDataLen;
|
|
lpReturnBuf = new UCHAR[dwReturnBufLen];
|
|
if (lpReturnBuf == NULL) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto LError;
|
|
}
|
|
|
|
// Loop again
|
|
hr = S_OK;
|
|
}
|
|
else { //Buffer is big enough, proceed to add the class property
|
|
// Create the Class Property object
|
|
pCNewClassProp = new CClassPropInfo;
|
|
if (pCNewClassProp == NULL) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto LError;
|
|
}
|
|
hr = pCNewClassProp->Init(mdr.dwMDIdentifier, FALSE);
|
|
if (FAILED(hr)) {
|
|
delete pCNewClassProp;
|
|
goto LError;
|
|
}
|
|
|
|
//Add it to the optional list
|
|
pCNewClassProp->m_pCListNext = m_pCOptionalPropList;
|
|
m_pCOptionalPropList = pCNewClassProp;
|
|
|
|
|
|
//Add it to the hash table
|
|
uiLoc = Hash(mdr.dwMDIdentifier);
|
|
pCNewClassProp->m_pCHashNext = m_rgCPropTable[uiLoc];
|
|
m_rgCPropTable[uiLoc] = pCNewClassProp;
|
|
|
|
iDataIndex++;
|
|
}
|
|
|
|
mdr.dwMDIdentifier = 0;
|
|
mdr.dwMDAttributes = METADATA_NO_ATTRIBUTES;
|
|
mdr.dwMDUserType = ALL_METADATA;
|
|
mdr.dwMDDataType = ALL_METADATA;
|
|
mdr.dwMDDataLen = dwReturnBufLen;
|
|
mdr.pbMDData = (PBYTE) lpReturnBuf;
|
|
mdr.dwMDDataTag = 0;
|
|
hr = pIMeta->EnumData(hMDClassProp,
|
|
NULL,
|
|
&mdr,
|
|
iDataIndex,
|
|
&dwReqDataLen);
|
|
}
|
|
|
|
// Make sure we ran out of items
|
|
if (HRESULT_CODE(hr) != ERROR_NO_MORE_ITEMS) {
|
|
goto LError;
|
|
}
|
|
|
|
// Close the Optional key
|
|
pIMeta->CloseKey(hMDClassProp);
|
|
|
|
delete lpReturnBuf;
|
|
|
|
// Close the Class key
|
|
pIMeta->CloseKey(hMDClass);
|
|
|
|
m_fLoaded = TRUE;
|
|
|
|
return S_OK;
|
|
|
|
//Error durring loading, back out
|
|
LError:
|
|
if (hMDClassProp != NULL) {
|
|
pIMeta->CloseKey(hMDClassProp);
|
|
}
|
|
if (hMDClass != NULL) {
|
|
pIMeta->CloseKey(hMDClass);
|
|
}
|
|
|
|
if (lpReturnBuf != NULL) {
|
|
delete lpReturnBuf;
|
|
}
|
|
|
|
Unload();
|
|
|
|
return hr;
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfo::Unload
|
|
|
|
Unloads the class property information table.
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
void CClassInfo::Unload()
|
|
{
|
|
int iIndex;
|
|
CClassPropInfo *pCDeleteProp;
|
|
|
|
// Clear the lists
|
|
m_pCOptionalPropList = NULL;
|
|
m_pCMandatoryPropList = NULL;
|
|
|
|
// For each hash table entry
|
|
for (iIndex =0; iIndex < CLASS_PROPERTY_HASH_SIZE; iIndex++) {
|
|
// While the entry is not empty
|
|
while (m_rgCPropTable[iIndex] != NULL) {
|
|
// Nuke the first table entry
|
|
pCDeleteProp = m_rgCPropTable[iIndex];
|
|
m_rgCPropTable[iIndex] = pCDeleteProp->m_pCHashNext;
|
|
delete pCDeleteProp;
|
|
}
|
|
}
|
|
|
|
m_fLoaded = FALSE;
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfo::GetProperty
|
|
|
|
Get the CClassPropInfo (class property info) object from the hash
|
|
table given the property id.
|
|
|
|
Parameters:
|
|
dwId Identifier of the property to get
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CClassInfo::GetProperty(DWORD dwId) {
|
|
CClassPropInfo *pCCurProp;
|
|
|
|
// Go to the table location
|
|
pCCurProp = m_rgCPropTable[Hash(dwId)];
|
|
|
|
// Look at all of the entries
|
|
while ((pCCurProp != NULL) && (pCCurProp->m_dwId != dwId)) {
|
|
pCCurProp = pCCurProp->m_pCHashNext;
|
|
}
|
|
|
|
return pCCurProp; // Will be NULL if not found
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------
|
|
* C C l a s s I n f o T a b l e
|
|
*/
|
|
|
|
/*===================================================================
|
|
CClassInfoTable::CClassInfoTable
|
|
|
|
Constructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CClassInfoTable::CClassInfoTable() : m_fLoaded(FALSE)
|
|
{
|
|
// Clear the hash table
|
|
memset(m_rgCClassTable, 0, CLASS_HASH_SIZE * sizeof(CClassInfo *));
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfoTable::~CClassInfoTable
|
|
|
|
Destructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CClassInfoTable::~CClassInfoTable()
|
|
{
|
|
if (m_fLoaded) {
|
|
Unload();
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfoTable::Load
|
|
|
|
Loads classes from the "_Machine_/Schema/Classes" key into the class
|
|
information table. On failure, recovers by unloading everything.
|
|
|
|
Parameters:
|
|
pIMeta ATL Smart pointer to the metabase
|
|
hMDComp Open metabase handle to "_Machine_" key
|
|
|
|
Returns:
|
|
E_OUTOFMEMORY on allocation failure
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CClassInfoTable::Load(CComPtr<IMSAdminBase> &pIMeta,
|
|
METADATA_HANDLE hMDComp)
|
|
{
|
|
ASSERT(pIMeta.p != NULL);
|
|
|
|
USES_CONVERSION;
|
|
HRESULT hr;
|
|
|
|
//If it's already loaded, unload then reload
|
|
if (m_fLoaded) {
|
|
Unload();
|
|
}
|
|
|
|
int iKeyIndex;
|
|
wchar_t wszSubKey[ADMINDATA_MAX_NAME_LEN];
|
|
LPTSTR tszSubKey;
|
|
int iLoc;
|
|
CClassInfo *pCNewClass;
|
|
|
|
//Load the classes
|
|
METADATA_HANDLE hMDClasses = NULL;
|
|
|
|
// Open the Schema/Classes subkey
|
|
hr = pIMeta->OpenKey(hMDComp,
|
|
L"Schema/Classes",
|
|
METADATA_PERMISSION_READ,
|
|
1000,
|
|
&hMDClasses);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
};
|
|
|
|
// For each subkey
|
|
iKeyIndex = 0;
|
|
hr = pIMeta->EnumKeys(hMDClasses,
|
|
NULL,
|
|
wszSubKey,
|
|
iKeyIndex);
|
|
while (SUCCEEDED(hr)) {
|
|
tszSubKey = W2T(wszSubKey);
|
|
|
|
// Create the new class
|
|
pCNewClass = new CClassInfo;
|
|
if (pCNewClass == NULL) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto LError;
|
|
}
|
|
hr = pCNewClass->Init(tszSubKey);
|
|
if (FAILED(hr)) {
|
|
delete pCNewClass;
|
|
goto LError;
|
|
}
|
|
|
|
// Load the class properties
|
|
hr = pCNewClass->Load(pIMeta, hMDClasses);
|
|
if (FAILED(hr)) {
|
|
delete pCNewClass;
|
|
goto LError;
|
|
}
|
|
|
|
// Add it to the hash table
|
|
iLoc = Hash(tszSubKey);
|
|
pCNewClass->m_pCHashNext = m_rgCClassTable[iLoc];
|
|
m_rgCClassTable[iLoc] = pCNewClass;
|
|
|
|
iKeyIndex++;
|
|
hr = pIMeta->EnumKeys(hMDClasses,
|
|
NULL,
|
|
wszSubKey,
|
|
iKeyIndex);
|
|
}
|
|
|
|
//Make sure we ran out of items
|
|
if (!(HRESULT_CODE(hr) == ERROR_NO_MORE_ITEMS)) {
|
|
goto LError;
|
|
}
|
|
|
|
// Close the schema properties key
|
|
pIMeta->CloseKey(hMDClasses);
|
|
|
|
m_fLoaded = TRUE;
|
|
|
|
return S_OK;
|
|
|
|
LError:
|
|
if (hMDClasses != NULL) {
|
|
pIMeta->CloseKey(hMDClasses);
|
|
}
|
|
|
|
// Cleanup the entries we loaded
|
|
Unload();
|
|
|
|
return hr;
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfo::Unload
|
|
|
|
Unloads the class information table.
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
void CClassInfoTable::Unload()
|
|
{
|
|
int iIndex;
|
|
CClassInfo *pCDeleteClass;
|
|
|
|
// For each hash table entry
|
|
for (iIndex =0; iIndex < CLASS_HASH_SIZE; iIndex++) {
|
|
// While the entry is not empty
|
|
while (m_rgCClassTable[iIndex] != NULL) {
|
|
// Nuke the first table entry
|
|
pCDeleteClass = m_rgCClassTable[iIndex];
|
|
m_rgCClassTable[iIndex] = pCDeleteClass->m_pCHashNext;
|
|
delete pCDeleteClass;
|
|
}
|
|
}
|
|
|
|
m_fLoaded = FALSE;
|
|
}
|
|
|
|
/*===================================================================
|
|
CCClasssInfoTable::GetClassInfo
|
|
|
|
Get the CClassInfo (class info) object from the hash table given
|
|
the class name
|
|
|
|
Parameters:
|
|
tszClassName Name of the class to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CClassInfo object on success
|
|
===================================================================*/
|
|
CClassInfo *CClassInfoTable::GetClassInfo(LPCTSTR tszName)
|
|
{
|
|
ASSERT_STRING(tszName);
|
|
|
|
CClassInfo *pCCurClass;
|
|
|
|
// Go to the table location
|
|
pCCurClass = m_rgCClassTable[Hash(tszName)];
|
|
|
|
// Look at all of the entries
|
|
while ((pCCurClass != NULL) &&
|
|
(_tcscmp(pCCurClass->m_tszName, tszName) != 0)) {
|
|
pCCurClass = pCCurClass->m_pCHashNext;
|
|
}
|
|
|
|
return pCCurClass; // Will be NULL if not found
|
|
}
|
|
|
|
/*===================================================================
|
|
CClassInfoTable::Hash
|
|
|
|
Private function to get a hash value from a class name for the
|
|
class table.
|
|
|
|
Parameters:
|
|
tszName Name to hash
|
|
|
|
Returns:
|
|
Hash value of name
|
|
===================================================================*/
|
|
unsigned int CClassInfoTable::Hash(LPCTSTR tszName)
|
|
{
|
|
ASSERT_STRING(tszName);
|
|
|
|
unsigned int uiSum;
|
|
unsigned int uiIndex;
|
|
|
|
uiSum = 0;
|
|
for (uiIndex=0; uiIndex < _tcslen(tszName); uiIndex++) {
|
|
uiSum += tszName[uiIndex];
|
|
}
|
|
|
|
return (uiSum % CLASS_HASH_SIZE);
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------
|
|
* C M e t a S c h e m a
|
|
*/
|
|
|
|
/*===================================================================
|
|
CMetaSchema::Init
|
|
|
|
Constructor
|
|
|
|
Parameters:
|
|
pIMeta ATL Smart pointer to the metabase
|
|
tszMachineName Name of machine the schema is for
|
|
|
|
Returns:
|
|
E_OUTOFMEMORY if allocation fails
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CMetaSchema::Init(const CComPtr<IMSAdminBase> &pIMeta,
|
|
LPCTSTR tszMachineName)
|
|
{
|
|
ASSERT(pIMeta.p != NULL);
|
|
ASSERT_STRING(tszMachineName);
|
|
|
|
m_pIMeta = pIMeta;
|
|
|
|
m_tszMachineName = new TCHAR[_tcslen(tszMachineName) + 1];
|
|
if (m_tszMachineName == NULL)
|
|
return E_OUTOFMEMORY;
|
|
_tcscpy(m_tszMachineName, tszMachineName);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::GetPropInfo
|
|
|
|
Get the CPropInfo (property info) object for a given id
|
|
|
|
Parameters:
|
|
dwId Id of property to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CPropInfo object on success
|
|
===================================================================*/
|
|
CPropInfo *CMetaSchema::GetPropInfo(DWORD dwId)
|
|
{
|
|
// Make sure the property table is up to date
|
|
if (m_fPropTableDirty) {
|
|
HRESULT hr;
|
|
|
|
hr = LoadPropTable();
|
|
if (FAILED(hr)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Pass on the call
|
|
return m_CPropInfoTable.GetPropInfo(dwId);
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::GetPropInfo
|
|
|
|
Get the CPropInfo (property info) object for a given name
|
|
|
|
Parameters:
|
|
tszName Name of property to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CPropInfo object on success
|
|
===================================================================*/
|
|
CPropInfo *CMetaSchema::GetPropInfo(LPCTSTR tszName)
|
|
{
|
|
ASSERT_STRING(tszName);
|
|
|
|
// Make sure the property table is up to date
|
|
if (m_fPropTableDirty) {
|
|
HRESULT hr;
|
|
|
|
hr = LoadPropTable();
|
|
if (FAILED(hr)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Pass on the call
|
|
return m_CPropInfoTable.GetPropInfo(tszName);
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::GetClassInfo
|
|
|
|
Get the CClassInfo (class info) object for a given class name
|
|
|
|
Parameters:
|
|
tszClassName Name of the class to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CClassInfo object on success
|
|
===================================================================*/
|
|
CClassInfo *CMetaSchema::GetClassInfo(LPCTSTR tszClassName) {
|
|
ASSERT_STRING(tszClassName);
|
|
|
|
// Make sure the class table is up to date
|
|
if (m_fClassTableDirty) {
|
|
HRESULT hr;
|
|
|
|
hr = LoadClassTable();
|
|
if (FAILED(hr)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Pass on the call
|
|
return m_CClassInfoTable.GetClassInfo(tszClassName);
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema:::GetClassPropInfo
|
|
|
|
Get the CClassPropInfo (class property info) object for a given
|
|
class name and property id.
|
|
|
|
Parameters:
|
|
tszClassName Name of the class get property from
|
|
dwPropId Id of property to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CMetaSchema::GetClassPropInfo(LPCTSTR tszClassName,
|
|
DWORD dwPropId)
|
|
{
|
|
// Make sure the class table is up to date
|
|
if (m_fClassTableDirty) {
|
|
HRESULT hr;
|
|
|
|
hr = LoadClassTable();
|
|
if (FAILED(hr)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Get the class
|
|
CClassInfo *pCClassInfo;
|
|
|
|
pCClassInfo = m_CClassInfoTable.GetClassInfo(tszClassName);
|
|
|
|
if (pCClassInfo == NULL) {
|
|
return NULL;
|
|
}
|
|
else {
|
|
// Pass on the call
|
|
return pCClassInfo->GetProperty(dwPropId);
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::GetMandatoryClassPropList
|
|
|
|
Get the list of optional class properties for a class name.
|
|
|
|
Parameters:
|
|
tszClassName Name of the class get the properties from
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the first optional CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CMetaSchema::GetMandatoryClassPropList(LPCTSTR tszClassName)
|
|
{
|
|
// Make sure the class table is up to date
|
|
if (m_fClassTableDirty) {
|
|
HRESULT hr;
|
|
|
|
hr = LoadClassTable();
|
|
if (FAILED(hr)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Get the class
|
|
CClassInfo *pCClassInfo;
|
|
|
|
pCClassInfo = m_CClassInfoTable.GetClassInfo(tszClassName);
|
|
|
|
if (pCClassInfo == NULL) {
|
|
return NULL;
|
|
}
|
|
else {
|
|
// Pass on the call
|
|
return pCClassInfo->GetMandatoryPropList();
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::GetOptionalClassPropList
|
|
|
|
Get the list of optional class properties for a class name.
|
|
|
|
Parameters:
|
|
tszClassName Name of the class get the properties from
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the first optional CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CMetaSchema::GetOptionalClassPropList(LPCTSTR tszClassName)
|
|
{
|
|
// Make sure the class table is up to date
|
|
if (m_fClassTableDirty) {
|
|
HRESULT hr;
|
|
|
|
hr = LoadClassTable();
|
|
if (FAILED(hr)) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
// Get the class
|
|
CClassInfo *pCClassInfo;
|
|
|
|
pCClassInfo = m_CClassInfoTable.GetClassInfo(tszClassName);
|
|
|
|
if (pCClassInfo == NULL) {
|
|
return NULL;
|
|
}
|
|
else {
|
|
// Pass on the call
|
|
return pCClassInfo->GetOptionalPropList();
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::ChangeNotification
|
|
|
|
Processes change events effecting the machine where the schema is
|
|
located. If the dirty flag for the property and class tables is not
|
|
already set a call to Unload() is made to free up memory no longer
|
|
needed.
|
|
|
|
Parameters:
|
|
tszChangedKey Cannonized key where change took place
|
|
pcoChangeObject Pointer to the change event information
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
void CMetaSchema::ChangeNotification(LPTSTR tszKey,
|
|
MD_CHANGE_OBJECT *pcoChangeObject)
|
|
{
|
|
ASSERT_POINTER(pcoChangeObject, MD_CHANGE_OBJECT);
|
|
|
|
USES_CONVERSION;
|
|
LPTSTR tszChangedKey;
|
|
|
|
tszChangedKey = tszKey;
|
|
|
|
// Skip the slash
|
|
if (*tszChangedKey != _T('\0') && *tszChangedKey == _T('/')) {
|
|
tszChangedKey++;
|
|
}
|
|
|
|
if (_tcsnicmp(tszChangedKey, _T("schema/"), 7) == 0) {
|
|
// It effects a "Schema" subkey
|
|
if ((_tcsnicmp(tszChangedKey, _T("schema/properties/"), 18) == 0) ||
|
|
(_tcsicmp(tszChangedKey, _T("schema/properties")) == 0)) {
|
|
// It effects "Schema/Properties"
|
|
if (!m_fPropTableDirty) {
|
|
// Unload the prop table
|
|
m_CPropInfoTable.Unload();
|
|
}
|
|
m_fPropTableDirty = TRUE;
|
|
}
|
|
else if ((_tcsnicmp(tszChangedKey, _T("schema/classes/"), 15) == 0) ||
|
|
(_tcsicmp(tszChangedKey, _T("schema/classes")) == 0)) {
|
|
// It effects "Schema/Classes"
|
|
if (!m_fClassTableDirty) {
|
|
// Unload the class table
|
|
m_CClassInfoTable.Unload();
|
|
}
|
|
m_fClassTableDirty = TRUE;
|
|
}
|
|
}
|
|
else if (_tcsicmp(tszChangedKey, _T("schema")) == 0) {
|
|
// Just the "Schema" key was changed
|
|
if (!m_fPropTableDirty) {
|
|
// Unload the prop table
|
|
m_CPropInfoTable.Unload();
|
|
}
|
|
m_fPropTableDirty = TRUE;
|
|
|
|
if (!m_fClassTableDirty) {
|
|
// Unload the class table
|
|
m_CClassInfoTable.Unload();
|
|
}
|
|
m_fClassTableDirty = TRUE;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::LoadPropTable
|
|
|
|
(Re)loads a dirty property table
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CMetaSchema::LoadPropTable()
|
|
{
|
|
USES_CONVERSION;
|
|
HRESULT hr;
|
|
|
|
// Open the Machine key
|
|
METADATA_HANDLE hMDKey;
|
|
|
|
hr = m_pIMeta->OpenKey(METADATA_MASTER_ROOT_HANDLE,
|
|
L"", // schema path moved to /schema
|
|
METADATA_PERMISSION_READ,
|
|
MUTIL_OPEN_KEY_TIMEOUT,
|
|
&hMDKey);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
}
|
|
|
|
// Load the properties
|
|
hr = m_CPropInfoTable.Load(m_pIMeta, hMDKey);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
}
|
|
|
|
// Close the Machine key
|
|
m_pIMeta->CloseKey(hMDKey);
|
|
|
|
m_fPropTableDirty = FALSE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchema::LoadClassTable
|
|
|
|
(Re)loads a dirty class table
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CMetaSchema::LoadClassTable()
|
|
{
|
|
USES_CONVERSION;
|
|
HRESULT hr;
|
|
|
|
// Open the Machine key
|
|
METADATA_HANDLE hMDKey;
|
|
|
|
hr = m_pIMeta->OpenKey(METADATA_MASTER_ROOT_HANDLE,
|
|
L"", // schema path moved to /schema
|
|
METADATA_PERMISSION_READ,
|
|
MUTIL_OPEN_KEY_TIMEOUT,
|
|
&hMDKey);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
}
|
|
|
|
// Load the properties
|
|
hr = m_CClassInfoTable.Load(m_pIMeta, hMDKey);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
}
|
|
|
|
// Close the Machine key
|
|
m_pIMeta->CloseKey(hMDKey);
|
|
|
|
m_fClassTableDirty = FALSE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------
|
|
* C M e t a S c h e m a T a b l e
|
|
*/
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::CMetaSchemaTable
|
|
|
|
Constructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CMetaSchemaTable::CMetaSchemaTable() : m_dwNumRef(1),
|
|
m_fLoaded(FALSE)
|
|
{
|
|
m_CMSAdminBaseSink = new CComObject<CMSAdminBaseSink>;
|
|
m_CMSAdminBaseSink->AddRef();
|
|
|
|
// Clear the hash table
|
|
memset(m_rgCSchemaTable, 0, SCHEMA_HASH_SIZE * sizeof(CMetaSchema *));
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::~CMetaSchemaTable
|
|
|
|
Destructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CMetaSchemaTable::~CMetaSchemaTable()
|
|
{
|
|
TRACE0("MetaUtil: CMetaSchemaTable::~CMetaSchemaTable\n");
|
|
|
|
if (m_fLoaded) {
|
|
Unload();
|
|
}
|
|
|
|
DWORD dwTemp;
|
|
|
|
if (m_CMSAdminBaseSink != NULL) {
|
|
dwTemp = m_CMSAdminBaseSink->Release();
|
|
|
|
TRACE1("MetaUtil: CMetaSchemaTable::~CMetaSchemaTable Release Sink %i\n", dwTemp);
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::Load
|
|
|
|
Loads/Creates the schema information for all of the machines
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
void CMetaSchemaTable::Load()
|
|
{
|
|
USES_CONVERSION;
|
|
HRESULT hr;
|
|
|
|
if (m_fLoaded) {
|
|
Unload();
|
|
}
|
|
|
|
// Create an instance of the Metabase Admin Base Object
|
|
// Need a seperate instance so we pick up changes made
|
|
// by our "parent" MetaUtil object family.
|
|
hr = ::CoCreateInstance(CLSID_MSAdminBase,
|
|
NULL,
|
|
CLSCTX_ALL,
|
|
IID_IMSAdminBase,
|
|
(void **)&m_pIMeta);
|
|
if (FAILED(hr)) {
|
|
m_pIMeta = NULL;
|
|
return;
|
|
}
|
|
|
|
// Build the schema list
|
|
int iKeyIndex;
|
|
wchar_t wszMDSubKey[ADMINDATA_MAX_NAME_LEN];
|
|
CMetaSchema *pCNewSchema;
|
|
int iLoc;
|
|
|
|
// For each subkey of root
|
|
iKeyIndex = 0;
|
|
hr = m_pIMeta->EnumKeys(METADATA_MASTER_ROOT_HANDLE,
|
|
NULL,
|
|
wszMDSubKey,
|
|
iKeyIndex);
|
|
while (SUCCEEDED(hr)) {
|
|
// Create the new schema
|
|
pCNewSchema = new CMetaSchema;
|
|
if (pCNewSchema == NULL) {
|
|
goto LError;
|
|
}
|
|
hr = pCNewSchema->Init(m_pIMeta, W2T(wszMDSubKey));
|
|
if (FAILED(hr)) {
|
|
delete pCNewSchema;
|
|
goto LError;
|
|
}
|
|
|
|
// Add it to the hash table
|
|
iLoc = Hash(W2T(wszMDSubKey));
|
|
pCNewSchema->m_pCNextSchema = m_rgCSchemaTable[iLoc];
|
|
m_rgCSchemaTable[iLoc] = pCNewSchema;
|
|
|
|
// Next
|
|
iKeyIndex++;
|
|
hr = m_pIMeta->EnumKeys(METADATA_MASTER_ROOT_HANDLE,
|
|
NULL,
|
|
wszMDSubKey,
|
|
iKeyIndex);
|
|
}
|
|
|
|
// Make sure we ran out of items
|
|
if (HRESULT_CODE(hr) != ERROR_NO_MORE_ITEMS) {
|
|
goto LError;
|
|
}
|
|
|
|
// Setup notification
|
|
if (m_CMSAdminBaseSink != NULL) {
|
|
m_CMSAdminBaseSink->Connect(m_pIMeta, this);
|
|
}
|
|
|
|
m_fLoaded = TRUE;
|
|
|
|
return;
|
|
|
|
LError:
|
|
// Back out of the load
|
|
Unload();
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::Unload
|
|
|
|
Unloads the schema table.
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
void CMetaSchemaTable::Unload() {
|
|
int iIndex;
|
|
CMetaSchema *pCDelete;
|
|
|
|
// Stop notification
|
|
if (m_CMSAdminBaseSink != NULL) {
|
|
m_CMSAdminBaseSink->Disconnect();
|
|
}
|
|
|
|
m_pIMeta = NULL;
|
|
|
|
// For each hash table entry
|
|
for (iIndex =0; iIndex < SCHEMA_HASH_SIZE; iIndex++) {
|
|
// While the entry is not empty
|
|
while (m_rgCSchemaTable[iIndex] != NULL) {
|
|
// Nuke the first table entry
|
|
pCDelete = m_rgCSchemaTable[iIndex];
|
|
m_rgCSchemaTable[iIndex] = pCDelete->m_pCNextSchema;
|
|
delete pCDelete;
|
|
}
|
|
}
|
|
|
|
m_fLoaded = FALSE;
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetPropInfo
|
|
|
|
Get the CPropInfo (property info) object for a given key and id
|
|
|
|
Parameters:
|
|
tszKey Key the property is located under
|
|
dwPropId Id of the property to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CPropInfo object on success
|
|
===================================================================*/
|
|
CPropInfo *CMetaSchemaTable::GetPropInfo(LPCTSTR tszKey,
|
|
DWORD dwPropId)
|
|
{
|
|
ASSERT_STRING(tszKey);
|
|
|
|
if (!m_fLoaded) {
|
|
Load();
|
|
}
|
|
|
|
CMetaSchema *pCSchema;
|
|
pCSchema = GetSchema(tszKey);
|
|
|
|
// If found then pass the call on
|
|
if (pCSchema != NULL) {
|
|
return pCSchema->GetPropInfo(dwPropId);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetPropInfo
|
|
|
|
Get the CPropInfo (property info) object for a given key and name
|
|
|
|
Parameters:
|
|
tszKey Key the property is located under
|
|
tszPropName Name of the property to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CPropInfo object on success
|
|
===================================================================*/
|
|
CPropInfo *CMetaSchemaTable::GetPropInfo(LPCTSTR tszKey,
|
|
LPCTSTR tszPropName)
|
|
{
|
|
ASSERT_STRING(tszKey);
|
|
ASSERT_STRING(tszPropName);
|
|
|
|
if (!m_fLoaded) {
|
|
Load();
|
|
}
|
|
|
|
CMetaSchema *pCSchema;
|
|
pCSchema = GetSchema(tszKey);
|
|
|
|
// If found then pass the call on
|
|
if (pCSchema != NULL) {
|
|
return pCSchema->GetPropInfo(tszPropName);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetClassInfo
|
|
|
|
Get the CClassInfo (class info) object for a given key and class name
|
|
|
|
Parameters:
|
|
tszKey Approxiamte key the class is located under. Used
|
|
to get the machine name.
|
|
tszClassName Name of the class to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CClassInfo object on success
|
|
===================================================================*/
|
|
CClassInfo *CMetaSchemaTable::GetClassInfo(LPCTSTR tszKey,
|
|
LPCTSTR tszClassName)
|
|
{
|
|
ASSERT_STRING(tszKey);
|
|
ASSERT_STRING(tszClassName);
|
|
|
|
if (!m_fLoaded) {
|
|
Load();
|
|
}
|
|
|
|
CMetaSchema *pCSchema;
|
|
pCSchema = GetSchema(tszKey);
|
|
|
|
// If found then pass the call on
|
|
if (pCSchema != NULL) {
|
|
return pCSchema->GetClassInfo(tszClassName);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetClassPropInfo
|
|
|
|
Get the CClassPropInfo (class property info) object for a given
|
|
key, class name and property id.
|
|
|
|
Parameters:
|
|
tszKey Approxiamte key the class is located under. Used
|
|
to get the machine name.
|
|
tszClassName Name of the class get property from
|
|
dwPropId Id of property to get info for
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CMetaSchemaTable::GetClassPropInfo(LPCTSTR tszKey,
|
|
LPCTSTR tszClassName,
|
|
DWORD dwPropId)
|
|
{
|
|
ASSERT_STRING(tszKey);
|
|
ASSERT_STRING(tszClassName);
|
|
|
|
if (!m_fLoaded) {
|
|
Load();
|
|
}
|
|
|
|
CMetaSchema *pCSchema;
|
|
pCSchema = GetSchema(tszKey);
|
|
|
|
// If found then pass the call on
|
|
if (pCSchema != NULL) {
|
|
return pCSchema->GetClassPropInfo(tszClassName, dwPropId);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetMandatoryClassPropList
|
|
|
|
Get the list of mandatory class properties for a given key and class
|
|
name.
|
|
|
|
Parameters:
|
|
tszKey Approxiamte key the class is located under. Used
|
|
to get the machine name.
|
|
tszClassName Name of the class get the properties from
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the first mandatory CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CMetaSchemaTable::GetMandatoryClassPropList(LPCTSTR tszKey,
|
|
LPCTSTR tszClassName)
|
|
{
|
|
ASSERT_STRING(tszKey);
|
|
ASSERT_STRING(tszClassName);
|
|
|
|
if (!m_fLoaded) {
|
|
Load();
|
|
}
|
|
|
|
CMetaSchema *pCSchema;
|
|
pCSchema = GetSchema(tszKey);
|
|
|
|
// If found then pass the call on
|
|
if (pCSchema != NULL) {
|
|
return pCSchema->GetMandatoryClassPropList(tszClassName);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetOptionalClassPropList
|
|
|
|
Get the list of optional class properties for a given key and class
|
|
name.
|
|
|
|
Parameters:
|
|
tszKey Approxiamte key the class is located under. Used
|
|
to get the machine name.
|
|
tszClassName Name of the class get the properties from
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the first optional CClassPropInfo object on success
|
|
===================================================================*/
|
|
CClassPropInfo *CMetaSchemaTable::GetOptionalClassPropList(LPCTSTR tszKey,
|
|
LPCTSTR tszClassName)
|
|
{
|
|
ASSERT_STRING(tszKey);
|
|
ASSERT_STRING(tszClassName);
|
|
|
|
if (!m_fLoaded) {
|
|
Load();
|
|
}
|
|
|
|
CMetaSchema *pCSchema;
|
|
pCSchema = GetSchema(tszKey);
|
|
|
|
// If found then pass the call on
|
|
if (pCSchema != NULL) {
|
|
return pCSchema->GetOptionalClassPropList(tszClassName);
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::SinkNotify
|
|
|
|
Metabase change notification callback from CMSAdminBaseSink. Either
|
|
determines a need to reload all of the schema information or sends
|
|
the message on to the appropriate CMetaSchema object.
|
|
|
|
Parameters:
|
|
dwMDNumElements Number of change events
|
|
pcoChangeObject Array of change events
|
|
|
|
Returns:
|
|
S_OK always
|
|
===================================================================*/
|
|
HRESULT CMetaSchemaTable::SinkNotify(DWORD dwMDNumElements,
|
|
MD_CHANGE_OBJECT pcoChangeObject[])
|
|
{
|
|
ASSERT(IsValidAddress(pcoChangeObject, dwMDNumElements * sizeof(MD_CHANGE_OBJECT), FALSE));
|
|
|
|
USES_CONVERSION;
|
|
DWORD dwIndex;
|
|
CMetaSchema *pCMetaSchema;
|
|
|
|
// For each event
|
|
for (dwIndex = 0; dwIndex < dwMDNumElements; dwIndex++) {
|
|
// Figure out what machine it's for
|
|
TCHAR tszKey[ADMINDATA_MAX_NAME_LEN];
|
|
_tcscpy(tszKey, W2T(pcoChangeObject[dwIndex].pszMDPath));
|
|
CannonizeKey(tszKey);
|
|
pCMetaSchema = GetSchema(tszKey);
|
|
|
|
// If the machine is not found
|
|
if (pCMetaSchema == NULL) {
|
|
// Reload the schema table
|
|
Load();
|
|
}
|
|
else {
|
|
// Send it to the appropriate machine
|
|
pCMetaSchema->ChangeNotification(tszKey, &(pcoChangeObject[dwIndex]));
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::GetSchema
|
|
|
|
Get the schema object that contains information on the given key.
|
|
|
|
Parameters:
|
|
tszKey Approxiamte key to get schema information for.
|
|
|
|
Returns:
|
|
NULL on failure
|
|
Pointer to the CMetaSchema object on success
|
|
===================================================================*/
|
|
CMetaSchema *CMetaSchemaTable::GetSchema(LPCTSTR tszKey) {
|
|
|
|
// Extract the machine name
|
|
TCHAR tszMachineName[ADMINDATA_MAX_NAME_LEN];
|
|
::GetMachineFromKey(tszKey, tszMachineName);
|
|
|
|
// Find the right schema
|
|
CMetaSchema *pCCurSchema;
|
|
|
|
pCCurSchema =m_rgCSchemaTable[Hash(tszMachineName)];
|
|
while ((pCCurSchema != NULL) &&
|
|
(_tcsicmp(pCCurSchema->m_tszMachineName, tszMachineName) != 0)) {
|
|
pCCurSchema = pCCurSchema->m_pCNextSchema;
|
|
}
|
|
|
|
return pCCurSchema; // Will be NULL if not found
|
|
}
|
|
|
|
/*===================================================================
|
|
CMetaSchemaTable::Hash
|
|
|
|
Private function to get a hash value from a machine name for the
|
|
schema table.
|
|
|
|
Parameters:
|
|
tszName Machinea name to hash
|
|
|
|
Returns:
|
|
Hash value of name
|
|
===================================================================*/
|
|
unsigned int CMetaSchemaTable::Hash(LPCTSTR tszName) {
|
|
ASSERT_STRING(tszName);
|
|
|
|
unsigned int uiSum;
|
|
unsigned int uiIndex;
|
|
|
|
uiSum = 0;
|
|
for (uiIndex=0; uiIndex < _tcslen(tszName); uiIndex++) {
|
|
uiSum += _totlower(tszName[uiIndex]);
|
|
}
|
|
|
|
return (uiSum % SCHEMA_HASH_SIZE);
|
|
}
|
|
|
|
/*------------------------------------------------------------------
|
|
* C M S A d m i n B a s e S i n k
|
|
*/
|
|
|
|
/*===================================================================
|
|
CMSAdminBaseSink::CMSAdminBaseSink
|
|
|
|
Constructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CMSAdminBaseSink::CMSAdminBaseSink() : m_fConnected(FALSE),
|
|
m_dwCookie(0),
|
|
m_pCMetaSchemaTable(NULL)
|
|
{
|
|
}
|
|
|
|
/*===================================================================
|
|
CMSAdminBaseSink::~CMSAdminBaseSink
|
|
|
|
Destructor
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
CMSAdminBaseSink::~CMSAdminBaseSink()
|
|
{
|
|
TRACE0("MetaUtil: CMSAdminBaseSink::~CMSAdminBaseSink !!!!!!!!!!!\n");
|
|
|
|
// Make sure we disconnected
|
|
if (m_fConnected) {
|
|
Disconnect();
|
|
}
|
|
}
|
|
|
|
/*===================================================================
|
|
CMSAdminBaseSink::SinkNotify
|
|
|
|
Entry point for notification events from the metabase admin base
|
|
object.
|
|
|
|
Parameters:
|
|
dwMDNumElements Number of change events
|
|
pcoChangeObject Array of change events
|
|
|
|
Returns:
|
|
E_FAIL if m_pCMetaSchemaTable == NULL
|
|
S_OK on success
|
|
===================================================================*/
|
|
STDMETHODIMP CMSAdminBaseSink::SinkNotify(DWORD dwMDNumElements,
|
|
MD_CHANGE_OBJECT pcoChangeObject[])
|
|
{
|
|
TRACE0("MetaUtil: CMSAdminBaseSink::SinkNotify\n");
|
|
ASSERT(IsValidAddress(pcoChangeObject, dwMDNumElements * sizeof(MD_CHANGE_OBJECT), FALSE));
|
|
|
|
if (m_pCMetaSchemaTable == NULL) {
|
|
return E_FAIL;
|
|
}
|
|
|
|
// Pass on the notification
|
|
return m_pCMetaSchemaTable->SinkNotify(dwMDNumElements, pcoChangeObject);
|
|
}
|
|
|
|
/*===================================================================
|
|
CMSAdminBaseSink::ShutdownNotify
|
|
|
|
Entry point for the shutdown notification event from the metabase
|
|
admin base object.
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
ERROR_NOT_SUPPORTE always
|
|
===================================================================*/
|
|
STDMETHODIMP CMSAdminBaseSink::ShutdownNotify() {
|
|
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
|
|
}
|
|
|
|
/*===================================================================
|
|
CMSAdminBaseSink::Connect
|
|
|
|
Begins notification of change events. Connects to the metabase admin
|
|
base object.
|
|
|
|
Parameters:
|
|
pIMeta Pointer to the metabase admin base object
|
|
pCMetaSchemaTable Pointer to the schema table so that events
|
|
can be sent back to it.
|
|
|
|
Returns:
|
|
E_NOINTERFACE if can not convert IMSAdminBase to
|
|
IConnectionPointContainer.
|
|
S_OK on success
|
|
===================================================================*/
|
|
HRESULT CMSAdminBaseSink::Connect(CComPtr<IMSAdminBase> &pIMeta,
|
|
CMetaSchemaTable *pCMetaSchemaTable)
|
|
{
|
|
ASSERT(pIMeta.p != NULL);
|
|
ASSERT_POINTER(pCMetaSchemaTable, CMetaSchemaTable);
|
|
|
|
HRESULT hr;
|
|
|
|
if (m_fConnected) {
|
|
Disconnect();
|
|
}
|
|
|
|
m_pCMetaSchemaTable = pCMetaSchemaTable;
|
|
|
|
// Get the connection container
|
|
CComQIPtr<IConnectionPointContainer, &IID_IConnectionPointContainer> pIMetaConnContainer;
|
|
|
|
pIMetaConnContainer = pIMeta;
|
|
if (pIMetaConnContainer == NULL) {
|
|
// Failure to change interfaces
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
// Get the connection point
|
|
hr = pIMetaConnContainer->FindConnectionPoint(IID_IMSAdminBaseSink, &m_pIMetaConn);
|
|
if (FAILED(hr)) {
|
|
return hr;
|
|
}
|
|
|
|
// Advise (connect)
|
|
AddRef();
|
|
m_pIMetaConn->Advise((IMSAdminBaseSink *) this, &m_dwCookie);
|
|
|
|
m_fConnected = TRUE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/*===================================================================
|
|
CMSAdminBaseSink::Disconnect
|
|
|
|
Stops notification of change events. Disconnects from the metabase
|
|
admin base object.
|
|
|
|
Parameters:
|
|
None
|
|
|
|
Returns:
|
|
Nothing
|
|
===================================================================*/
|
|
void CMSAdminBaseSink::Disconnect()
|
|
{
|
|
if (!m_fConnected) {
|
|
// Not connected
|
|
return;
|
|
}
|
|
|
|
// Stop notification
|
|
m_pIMetaConn->Unadvise(m_dwCookie);
|
|
|
|
// No longer needed
|
|
m_pIMetaConn = NULL;
|
|
m_pCMetaSchemaTable = NULL;
|
|
|
|
m_fConnected = FALSE;
|
|
}
|