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120 lines
4.1 KiB
120 lines
4.1 KiB
/********************************************************************
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Copyright (c) 1999 Microsoft Corporation
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Module Name:
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PCH_ProgramGroup.CPP
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Abstract:
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WBEM provider class implementation for PCH_ProgramGroup class
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Revision History:
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Ghim-Sim Chua (gschua) 04/27/99
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- Created
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Ghim-Sim Chua (gschua) 05/02/99
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- Modified code to use CopyProperty function
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- Use CComBSTR instead of USES_CONVERSION
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********************************************************************/
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#include "pchealth.h"
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#include "PCH_ProgramGroup.h"
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/////////////////////////////////////////////////////////////////////////////
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// tracing stuff
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#ifdef THIS_FILE
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#undef THIS_FILE
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#endif
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static char __szTraceSourceFile[] = __FILE__;
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#define THIS_FILE __szTraceSourceFile
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#define TRACE_ID DCID_PROGRAMGROUP
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CPCH_ProgramGroup MyPCH_ProgramGroupSet (PROVIDER_NAME_PCH_PROGRAMGROUP, PCH_NAMESPACE) ;
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// Property names
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//===============
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const static WCHAR* pTimeStamp = L"TimeStamp" ;
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const static WCHAR* pChange = L"Change" ;
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const static WCHAR* pGroupName = L"GroupName" ;
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const static WCHAR* pName = L"Name" ;
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const static WCHAR* pUsername = L"Username" ;
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/*****************************************************************************
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*
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* FUNCTION : CPCH_ProgramGroup::EnumerateInstances
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*
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* DESCRIPTION : Returns all the instances of this class.
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*
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* INPUTS : A pointer to the MethodContext for communication with WinMgmt.
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* A long that contains the flags described in
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* IWbemServices::CreateInstanceEnumAsync. Note that the following
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* flags are handled by (and filtered out by) WinMgmt:
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* WBEM_FLAG_DEEP
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* WBEM_FLAG_SHALLOW
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* WBEM_FLAG_RETURN_IMMEDIATELY
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* WBEM_FLAG_FORWARD_ONLY
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* WBEM_FLAG_BIDIRECTIONAL
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*
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* RETURNS : WBEM_S_NO_ERROR if successful
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*
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* COMMENTS : All instances on the machine are returned here.
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* If there are no instances, WBEM_S_NO_ERROR is returned.
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* It is not an error to have no instances.
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*
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*****************************************************************************/
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HRESULT CPCH_ProgramGroup::EnumerateInstances(
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MethodContext* pMethodContext,
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long lFlags
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)
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{
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TraceFunctEnter("CPCH_ProgramGroup::EnumerateInstances");
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HRESULT hRes = WBEM_S_NO_ERROR;
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REFPTRCOLLECTION_POSITION posList;
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CComPtr<IEnumWbemClassObject> pEnumInst;
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IWbemClassObjectPtr pObj;
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ULONG ulRetVal;
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// Get the date and time
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SYSTEMTIME stUTCTime;
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GetSystemTime(&stUTCTime);
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// Execute the query
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hRes = ExecWQLQuery(&pEnumInst, CComBSTR("select GroupName, Name, UserName from Win32_ProgramGroup"));
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if (FAILED(hRes))
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goto END;
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// enumerate the instances from win32_CodecFile
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while (WBEM_S_NO_ERROR == pEnumInst->Next(WBEM_INFINITE, 1, &pObj, &ulRetVal))
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{
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// Create a new instance based on the passed-in MethodContext. If this fails,
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// we don't need to check for a null pointer because it throws an exception.
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CInstancePtr pInstance(CreateNewInstance(pMethodContext), false);
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CComVariant varValue;
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if (!pInstance->SetDateTime(pTimeStamp, WBEMTime(stUTCTime)))
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ErrorTrace(TRACE_ID, "SetDateTime on Timestamp Field failed.");
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if (!pInstance->SetCHString(pChange, L"Snapshot"))
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ErrorTrace(TRACE_ID, "SetCHString on Change Field failed.");
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(void)CopyProperty(pObj, L"GroupName", pInstance, pGroupName);
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(void)CopyProperty(pObj, L"Name", pInstance, pName);
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(void)CopyProperty(pObj, L"UserName", pInstance, pUsername);
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hRes = pInstance->Commit();
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if (FAILED(hRes))
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ErrorTrace(TRACE_ID, "Commit on Instance failed.");
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}
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END:
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TraceFunctLeave();
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return hRes ;
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}
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