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122 lines
3.9 KiB
122 lines
3.9 KiB
/********************************************************************
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Copyright (c) 1999 Microsoft Corporation
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Module Name:
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PCH_Device.CPP
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Abstract:
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WBEM provider class implementation for PCH_Device 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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********************************************************************/
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#include "pchealth.h"
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#include "PCH_Device.h"
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// #include "confgmgr.h"
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// #include <cregcls.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_DEVICE
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CPCH_Device MyPCH_DeviceSet (PROVIDER_NAME_PCH_DEVICE, PCH_NAMESPACE) ;
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// Property names
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//===============
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const static WCHAR* pCategory = L"Category" ;
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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* pDescription = L"Description" ;
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const static WCHAR* pDriveLetter = L"DriveLetter" ;
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const static WCHAR* pHWRevision = L"HWRevision" ;
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const static WCHAR* pName = L"Name" ;
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const static WCHAR* pRegkey = L"Regkey" ;
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/*****************************************************************************
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*
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* FUNCTION : CPCH_Device::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 : TO DO: All instances on the machine should be returned here.
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* If there are no instances, return WBEM_S_NO_ERROR.
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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_Device::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_Device::EnumerateInstances");
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HRESULT hRes = WBEM_S_NO_ERROR;
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ULONG ulPNPEntityRetVal;
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// Instances
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CComPtr<IEnumWbemClassObject> pPNPEntityEnumInst;
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// Objects
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IWbemClassObjectPtr pPNPEntityObj;
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// Query Strings
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CComBSTR bstrPNPEntityQuery = L"Select Description, DeviceID FROM Win32_PNPEntity";
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// Enumerate the instances of Win32_PNPEntity Class
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hRes = ExecWQLQuery(&pPNPEntityEnumInst, bstrPNPEntityQuery);
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if (FAILED(hRes))
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{
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// Cannot get any properties.
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goto END;
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}
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// Query Succeeded
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while(WBEM_S_NO_ERROR == pPNPEntityEnumInst->Next(WBEM_INFINITE, 1, &pPNPEntityObj, &ulPNPEntityRetVal))
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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 pPCHDeviceInstance(CreateNewInstance(pMethodContext), false);
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CopyProperty(pPNPEntityObj, L"DeviceID", pPCHDeviceInstance, pName);
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CopyProperty(pPNPEntityObj, L"Description", pPCHDeviceInstance, pDescription);
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hRes = pPCHDeviceInstance->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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