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-
- /******************************************************************************\
- * This is a part of the Microsoft Source Code Samples.
- * Copyright (C) 1993-1997 Microsoft Corporation.
- * All rights reserved.
- * This source code is only intended as a supplement to
- * Microsoft Development Tools and/or WinHelp documentation.
- * See these sources for detailed information regarding the
- * Microsoft samples programs.
- \******************************************************************************/
-
-
- /******************************************************************************
-
- O B J E C T D A T A
-
- Name: objdata.c
-
- Description:
- This module contains functions that access objects in performance
- data.
-
- Functions:
- FirstObject
- NextObject
- FindObject
- FindObjectN
-
- ******************************************************************************/
-
- #include <windows.h>
- #include <winperf.h>
- #include "perfdata.h"
-
-
-
-
- //*********************************************************************
- //
- // FirstObject
- //
- // Returns pointer to the first object in pData.
- // If pData is NULL then NULL is returned.
- //
- PPERF_OBJECT FirstObject (PPERF_DATA pData)
- {
- if (pData)
- return ((PPERF_OBJECT) ((PBYTE) pData + pData->HeaderLength));
- else
- return NULL;
- }
-
-
-
-
- //*********************************************************************
- //
- // NextObject
- //
- // Returns pointer to the next object following pObject.
- //
- // If pObject is the last object, bogus data maybe returned.
- // The caller should do the checking.
- //
- // If pObject is NULL, then NULL is returned.
- //
- PPERF_OBJECT NextObject (PPERF_OBJECT pObject)
- {
- if (pObject)
- return ((PPERF_OBJECT) ((PBYTE) pObject + pObject->TotalByteLength));
- else
- return NULL;
- }
-
-
-
-
- //*********************************************************************
- //
- // FindObject
- //
- // Returns pointer to object with TitleIndex. If not found, NULL
- // is returned.
- //
- PPERF_OBJECT FindObject (PPERF_DATA pData, DWORD TitleIndex)
- {
- PPERF_OBJECT pObject;
- DWORD i = 0;
-
- if (pObject = FirstObject (pData))
- while (i < pData->NumObjectTypes)
- {
- if (pObject->ObjectNameTitleIndex == TitleIndex)
- return pObject;
-
- pObject = NextObject (pObject);
- i++;
- }
-
- return NULL;
- }
-
-
-
-
- //*********************************************************************
- //
- // FindObjectN
- //
- // Find the Nth object in pData. If not found, NULL is returned.
- // 0 <= N < NumObjectTypes.
- //
- PPERF_OBJECT FindObjectN (PPERF_DATA pData, DWORD N)
- {
- PPERF_OBJECT pObject;
- DWORD i = 0;
-
- if (!pData)
- return NULL;
- else if (N >= pData->NumObjectTypes)
- return NULL;
- else
- {
- pObject = FirstObject (pData);
-
- while (i != N)
- {
- pObject = NextObject (pObject);
- i++;
- }
-
- return pObject;
- }
- }
-