469 lines
11 KiB
C++
469 lines
11 KiB
C++
//***************************************************************************
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//
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// PQDE.CPP
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//
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// Module: HEALTHMON SERVER AGENT
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//
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// Purpose: CPolledQueryDataCollector class to do WMI instance collection.
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//
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// Copyright (c)1999 Microsoft Corporation, All Rights Reserved
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//
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//***************************************************************************
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#include "pqde.h"
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#include "system.h"
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extern CSystem* g_pSystem;
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CPolledQueryDataCollector::CPolledQueryDataCollector()
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{
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MY_OUTPUT(L"ENTER ***** CPolledQueryDataCollector...", 4);
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m_szQuery = NULL;
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m_deType = HM_PQDE;
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m_pEnumObjs = NULL;
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MY_OUTPUT(L"EXIT ***** CPolledQueryDataCollector...", 4);
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}
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CPolledQueryDataCollector::~CPolledQueryDataCollector()
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{
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MY_OUTPUT(L"ENTER ***** ~CPolledQueryDataCollector...", 4);
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if (m_szQuery)
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delete [] m_szQuery;
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EnumDone();
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MY_OUTPUT(L"EXIT ***** ~CPolledQueryDataCollector...", 4);
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}
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//
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// Load a single DataCollector, and everything under it.
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//
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HRESULT CPolledQueryDataCollector::LoadInstanceFromMOF(IWbemClassObject* pObj, CDataGroup *pParentDG, LPTSTR pszParentObjPath, BOOL bModifyPass/*FALSE*/)
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{
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HRESULT hRetRes = S_OK;
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int i, iSize;
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CThreshold* pThreshold;
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MY_OUTPUT(L"ENTER ***** CPolledQueryDataCollector::LoadInstanceFromMOF...", 4);
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iSize = m_thresholdList.size();
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for (i = 0; i < iSize ; i++)
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{
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MY_ASSERT(i<m_thresholdList.size());
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pThreshold = m_thresholdList[i];
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if (pThreshold->m_bValidLoad == FALSE)
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return WBEM_E_INVALID_OBJECT;
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// return S_OK;
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}
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if (m_szQuery)
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{
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delete [] m_szQuery;
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m_szQuery = NULL;
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}
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m_lNumInstancesCollected = 0;
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//
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// Call the base class to load the common properties. Then do the specific ones.
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//
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hRetRes = CDataCollector::LoadInstanceFromMOF(pObj, pParentDG, pszParentObjPath, bModifyPass);
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MY_HRESASSERT(hRetRes); if (hRetRes!=S_OK) return hRetRes;
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// Get the GUID property
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hRetRes = GetStrProperty(pObj, L"Query", &m_szQuery);
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MY_HRESASSERT(hRetRes); if (hRetRes!=S_OK) goto error;
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MY_OUTPUT(L"EXIT ***** CPolledQueryDataCollector::LoadInstanceFromMOF...", 4);
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return S_OK;
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error:
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MY_ASSERT(FALSE);
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m_bValidLoad = FALSE;
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Cleanup(FALSE);
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return hRetRes;
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}
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BOOL CPolledQueryDataCollector::CollectInstance(void)
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{
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HRESULT hRes;
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BSTR Language;
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BSTR Query;
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IWbemClassObject *pObj = NULL;
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BOOL bRetValue = TRUE;
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SAFEARRAY *psaNames = NULL;
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BSTR PropName = NULL;
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int i, j, iSize, jSize;
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PNSTRUCT *ppn;
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INSTSTRUCT *pinst;
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INSTSTRUCT inst;
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CThreshold *pThreshold;
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IRSSTRUCT *pirs;
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ACTUALINSTSTRUCT *pActualInst;
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MY_OUTPUT(L"ENTER ***** CPolledQueryDataCollector::CollectInstance...", 1);
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m_lNumInstancesCollected = 0;
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if (m_pIWbemServices == NULL)
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{
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m_ulErrorCode = HMRES_BADWMI;
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GetLatestAgentError(HMRES_BADWMI, m_szErrorDescription);
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StoreStandardProperties();
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return FALSE;
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}
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//
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// We get an instance at a time, so we can set all to not needed first,
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// then go through them, do StoreValues... and delete what is not needed.
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//
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//
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// Mark each instance, so we can tell if we still need them.
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//
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iSize = m_pnList.size();
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for (i = 0; i < iSize ; i++)
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{
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MY_ASSERT(i<m_pnList.size());
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ppn = &m_pnList[i];
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jSize = ppn->instList.size();
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for (j = 0; j < jSize ; j++)
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{
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MY_ASSERT(j<ppn->instList.size());
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pinst = &ppn->instList[j];
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pinst->bNeeded = FALSE;
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}
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}
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// Also for all thresholds under this DataCollector
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iSize = m_thresholdList.size();
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for (i = 0; i < iSize; i++)
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{
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MY_ASSERT(i<m_thresholdList.size());
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pThreshold = m_thresholdList[i];
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jSize = pThreshold->m_irsList.size();
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for (j = 0; j < jSize; j++)
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{
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MY_ASSERT(j<pThreshold->m_irsList.size());
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pirs = &pThreshold->m_irsList[j];
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pirs->bNeeded = FALSE;
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}
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}
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iSize = m_actualInstList.size();
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for (i=0; i < iSize; i++)
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{
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MY_ASSERT(i<m_actualInstList.size());
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pActualInst = &m_actualInstList[i];
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pActualInst->bNeeded = FALSE;
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}
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//
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// Submit the query, then get all the instances
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//
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Language = SysAllocString(L"WQL");
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Query = SysAllocString(m_szQuery);
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// Issue query
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m_pEnumObjs = NULL;
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hRes = m_pIWbemServices->ExecQuery(Language, Query, WBEM_FLAG_FORWARD_ONLY|WBEM_FLAG_RETURN_IMMEDIATELY, m_pContext, &m_pEnumObjs);
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SysFreeString(Query);
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SysFreeString(Language);
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if (hRes != S_OK)
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{
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m_ulErrorCode = hRes;
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GetLatestWMIError(HMRES_OBJECTNOTFOUND, hRes, m_szErrorDescription);
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StoreStandardProperties();
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bRetValue = FALSE;
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MY_HRESASSERT(hRes);
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MY_OUTPUT2(L"PQDC Unexpected Error: 0x%08x\n",hRes,4);
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MY_OUTPUT2(L"m_szGUID was=%s",m_szGUID,4);
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MY_OUTPUT2(L"m_szQuery was=%s",m_szQuery,4);
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}
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else
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{
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m_bKeepCollectingSemiSync = TRUE;
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bRetValue = CollectInstanceSemiSync();
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}
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MY_OUTPUT(L"EXIT ***** CPolledQueryDataCollector::CollectInstance...", 1);
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return bRetValue;
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}
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BOOL CPolledQueryDataCollector::CollectInstanceSemiSync(void)
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{
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HRESULT hRes;
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IWbemClassObject *apObj[10];
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INSTSTRUCT inst;
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SAFEARRAY *psaNames = NULL;
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BSTR PropName = NULL;
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ULONG uReturned = 0;
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MY_OUTPUT(L"ENTER ***** CPolledQueryDataCollector::CollectInstanceSemiSync...", 1);
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MY_ASSERT(m_pEnumObjs);
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// We never want to block here, so we set it for zero second timeout,
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// and have it return immediatly what it has available.
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// Get up to 10 instances at a time.
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hRes = m_pEnumObjs->Next(0, 10, apObj, &uReturned);
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if (hRes == WBEM_S_TIMEDOUT)
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{
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// Get what is there
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if (!ProcessObjects(uReturned, apObj))
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{
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EnumDone();
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return FALSE;
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}
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return FALSE;
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}
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else if (hRes == WBEM_S_FALSE)
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{
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//
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// Means that we are done. The number returned was less than asked for.
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// But we still process what we did recieve to finish it off.
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// Add in a fake instance for the number of instances returned.
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//
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if (!ProcessObjects(uReturned, apObj))
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{
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EnumDone();
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return FALSE;
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}
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else
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{
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// NOTE: No instances returned is not an error!!!
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m_ulErrorCode = 0;
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StoreStandardProperties();
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EnumDone();
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//XXXWhy was this here??? m_lCurrState = HM_GOOD;
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return TRUE;
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}
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}
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else if (hRes == WBEM_S_NO_ERROR)
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{
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// Means that we have an instance, The number returned was what was requested
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}
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else
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{
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MY_HRESASSERT(hRes);
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MY_OUTPUT2(L"PQDC Unexpected Error Next: 0x%08x\n",hRes,4);
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MY_OUTPUT2(L"m_szGUID was=%s",m_szGUID,4);
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m_ulErrorCode = hRes;
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GetLatestWMIError(HMRES_ENUMFAIL, hRes, m_szErrorDescription);
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StoreStandardProperties();
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EnumDone();
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return FALSE;
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}
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if (apObj[0] == NULL)
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{
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//
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// NULL in this case can actually happen. An example is where the
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// threshold is to see if the SQL Server service is running. If it
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// is not even on the machine, then we would get an error looking
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// for its instance.
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//
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m_ulErrorCode = hRes;
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GetLatestWMIError(HMRES_OBJECTNOTFOUND, hRes, m_szErrorDescription);
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StoreStandardProperties();
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EnumDone();
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}
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else
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{
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MY_ASSERT(uReturned>=1);
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if (!ProcessObjects(uReturned, apObj))
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{
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EnumDone();
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return FALSE;
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}
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}
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MY_OUTPUT(L"EXIT ***** CPolledQueryDataCollector::CollectInstanceSemiSync...", 1);
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return FALSE;
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}
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BOOL CPolledQueryDataCollector::ProcessObjects(ULONG uReturned, IWbemClassObject **apObj)
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{
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HRESULT hRes;
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LPTSTR pszID;
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ULONG n;
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BOOL bRetValue = TRUE;
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for (n = 0; n < uReturned; n++)
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{
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if (g_pSystem->m_lNumInstancesAccepted <m_lNumInstancesCollected)
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{
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m_ulErrorCode = HMRES_TOOMANYINSTS;
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GetLatestAgentError(HMRES_TOOMANYINSTS, m_szErrorDescription);
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StoreStandardProperties();
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bRetValue = FALSE;
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break;
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}
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//
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// Figure out the key property name to identify instances with.
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//
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hRes = GetInstanceID(apObj[n], &pszID);
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if (hRes != S_OK)
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{
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m_ulErrorCode = hRes;
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GetLatestWMIError(HMRES_OBJECTNOTFOUND, hRes, m_szErrorDescription);
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StoreStandardProperties();
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bRetValue = FALSE;
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break;
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}
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//
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// Mark instances need to keep around, and add new ones
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//
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hRes = CheckInstanceExistance(apObj[n], pszID);
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if (hRes != S_OK)
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{
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delete [] pszID;
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m_ulErrorCode = hRes;
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GetLatestWMIError(HMRES_OBJECTNOTFOUND, hRes, m_szErrorDescription);
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StoreStandardProperties();
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bRetValue = FALSE;
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break;
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}
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//
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// Now store each property that we need to for this instance
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//
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m_lNumInstancesCollected++;
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StoreValues(apObj[n], pszID);
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delete [] pszID;
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}
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for (n = 0; n < uReturned; n++)
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{
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apObj[n]->Release();
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apObj[n] = NULL;
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}
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return bRetValue;
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}
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BOOL CPolledQueryDataCollector::EnumDone(void)
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{
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IRSSTRUCT *pirs;
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IWbemClassObject *pObj = NULL;
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BOOL bRetValue = TRUE;
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PNSTRUCT *ppn;
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INSTSTRUCT inst;
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INSTSTRUCT *pinst;
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int i, j, iSize, jSize;
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CThreshold *pThreshold;
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SAFEARRAY *psaNames = NULL;
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BSTR PropName = NULL;
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INSTLIST::iterator iaPINST;
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IRSLIST::iterator iaPIRS;
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ACTUALINSTLIST::iterator iaPAI;
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ACTUALINSTSTRUCT *pActualInst;
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CleanupSemiSync();
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//XXXAdd similar code to get rid of what is not needed in the m_instList
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//XXXOnce again take common code and place it in the base class!VVVVVVVVVVVVVVVVVVVVVVVVv
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//
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// Now loop through and get rid of instances that are no longer around
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//
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iSize = m_pnList.size();
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for (i = 0; i < iSize; i++)
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{
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MY_ASSERT(i<m_pnList.size());
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ppn = &m_pnList[i];
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iaPINST = ppn->instList.begin();
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jSize = ppn->instList.size();
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for (j = 0; j < jSize && iaPINST ; j++)
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{
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pinst = iaPINST;
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if (pinst->bNeeded == FALSE)
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{
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if (pinst->szInstanceID)
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delete [] pinst->szInstanceID;
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if (pinst->szCurrValue)
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delete [] pinst->szCurrValue;
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pinst->szCurrValue = NULL;
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iaPINST = ppn->instList.erase(iaPINST);
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}
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else
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{
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iaPINST++;
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}
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}
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}
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// Also for all thresholds under this DataCollector
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iSize = m_thresholdList.size();
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for (i = 0; i < iSize; i++)
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{
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MY_ASSERT(i<m_thresholdList.size());
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pThreshold = m_thresholdList[i];
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iaPIRS = pThreshold->m_irsList.begin();
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jSize = pThreshold->m_irsList.size();
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for (j = 0; j < jSize && iaPIRS ; j++)
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{
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pirs = iaPIRS;
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if (pirs->bNeeded == FALSE)
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{
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if (pirs->szInstanceID)
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delete [] pirs->szInstanceID;
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iaPIRS = pThreshold->m_irsList.erase(iaPIRS);
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}
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else
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{
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iaPIRS++;
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}
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}
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}
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iaPAI = m_actualInstList.begin();
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jSize = m_actualInstList.size();
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for (j = 0; j < jSize && iaPAI; j++)
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{
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pActualInst = iaPAI;
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if (pActualInst->bNeeded == FALSE)
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{
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if (pActualInst->szInstanceID)
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{
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delete [] pActualInst->szInstanceID;
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}
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if (pActualInst->pInst)
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{
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pActualInst->pInst->Release();
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pActualInst->pInst = NULL;
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}
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iaPAI = m_actualInstList.erase(iaPAI);
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}
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else
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{
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iaPAI++;
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}
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}
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//XXXOnce again take common code and place it in the base class!^^^^^^^^^^^^^^^^^^^^^^^^^
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return TRUE;
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}
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BOOL CPolledQueryDataCollector::CleanupSemiSync(void)
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{
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if (m_pEnumObjs)
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{
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m_pEnumObjs->Release();
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m_pEnumObjs = NULL;
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}
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m_bKeepCollectingSemiSync = FALSE;
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m_lCollectionTimeOutCount = 0;
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return TRUE;
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}
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