我注册为类“SMS_UpdateGroupAssignment”来监控部署对象创建事件，代码段是下面：WMI创建实例事件
_dhGCreation = SINGLETON (CWMIEventManager)->subscribeToObjectCreation (L"SMS_UpdateGroupAssignment", this);
void* CWMIEventManager::subscribeToObjectCreation (CComBSTR wmiClass, IWMIEventHandler* eh)
{
IUnsecuredApartment* pUnsecApp = NULL;
//IWbemUnsecuredApartment* pUnsecApp = NULL;
HRESULT hres = CoCreateInstance (CLSID_UnsecuredApartment,
NULL,
CLSCTX_LOCAL_SERVER,
IID_IUnsecuredApartment,
(void**)&pUnsecApp);
DWORD dwErr = GetLastError();
LOG_DEBUG_2("CoCreateInstance done, GetLastError = %d, HRESULT = %d", dwErr, hres);
CEventSink* pSink = new CCreationEventSink (eh);
pSink->AddRef();
LOG_DEBUG_0("pSink->AddRef");
IUnknown* pStubUnk = NULL;
LOG_DEBUG_1("pUnsecApp = %d", &pUnsecApp);
pUnsecApp->CreateObjectStub (pSink, &pStubUnk);
LOG_DEBUG_0("pUnsecApp->CreateObjectStub");
IWbemObjectSink* pStubSink = NULL;
pStubUnk->QueryInterface (IID_IWbemObjectSink,
(void **) &pStubSink);
LOG_DEBUG_0("pStubUnk->QueryInterface");
/*
* The ExecNotificationQueryAsync method will call
* EventSink::Indicate method when an event occurs
*/
CComBSTR query = L" SELECT * FROM __InstanceCreationEvent WITHIN 1 WHERE TargetInstance ISA '";
query += wmiClass + "'";
CW2A printstr(query);
// here smsProv is an instance to root/sms/site_<siteCode>
hres = smsProv->getWbemSvc()->ExecNotificationQueryAsync (
CComBSTR (L"WQL"),
query,
WBEM_FLAG_SEND_STATUS,
NULL,
pStubSink);
/* Check for errors.*/
if (FAILED(hres))
{
pUnsecApp->Release();
pStubUnk->Release();
pSink->Release();
pStubSink->Release();
return 0;
}
return (void*) pSink;
}
当该登记发生时，我收到以下在SMSPROV.LOG错误：
执行WQL = SELECT * FROM SMS_UpdateGroupAssignment〜$$ < 2017年2月14日13：59：55.472-330>执行 SQL =选择所有 SMS_UpdateGroupAssignment.AssignmentID，SMS_UpdateGroupAssignment.LocaleID，SMS _UpdateGroupAssignment.AssignedUpdateGroup，SMS_UpdateGroupAssignment.AssignmentAction，SMS_UpdateGroupAssignment.Description，SMS_UpdateGroupAssignment.AssignmentID，SMS_UpdateGroupAssignment.AssignmentName，SMS_UpdateGroupAssignment.AssignmentType，SMS_UpdateGroupAssignment.Assignment_UniqueID，SMS_UpdateGroupAssignment.ContainsExpiredUpdates，SMS_UpdateGroupAssignment.CreationTime，SMS_UpdateGroupAssignment.DesiredConfigType，SMS_UpdateGroupAssignment.DisableMomAlerts，SMS_UpdateGroupAssignment.DPLocality，SMS_UpdateGroupAssignment。 AssignmentEnabled，SMS_UpdateGroupAssignment.EnforcementDeadline，SMS_UpdateGroupAssignment.EvaluationSchedule，SMS_UpdateGroupAssignment.ExpirationTime，SMS_UpdateGroupAssignment.LastModificationTime，SMS_UpdateGroupAssignment.LastModifiedBy，SMS_UpdateGroupAssignment.LimitStateMessageVerbosity，SMS_UpdateGroupAssignment.LocaleID，SMS_UpdateGroupAssignment.LogComplianceToWinEvent ... 〜〜〜e：\ nts_sccm_release \ sms \ siteserver \ sdk_provider \ extnprov \ extproviderclassobject.cpp（2190） ：错误显示 - 可能取消〜〜〜$$ < 02-14-2017 13：59：55.667-330> ERROR ON INDICATE =（WBEM_E_CALL_CANCELLED）〜$$ < 02-14-2017 13：59：55.669-330>返回的结果：170的-1〜 $$ < 02-14-2017 13：59：55.675-330 >
这可能是什么原因导致这种故障？