| /* |
| * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef OS_WINDOWS_VM_PDH_INTERFACE_HPP |
| #define OS_WINDOWS_VM_PDH_INTERFACE_HPP |
| |
| #include "memory/allocation.hpp" |
| #include <pdh.h> |
| #include <pdhmsg.h> |
| |
| class PdhDll: public AllStatic { |
| private: |
| static LONG _pdh_reference_count; |
| static LONG _critical_section; |
| static LONG _initialized; |
| static HMODULE _hModule; |
| static void initialize(); |
| static PDH_STATUS (WINAPI *_PdhAddCounter)(HQUERY, LPCSTR, DWORD, HCOUNTER*); |
| static PDH_STATUS (WINAPI *_PdhOpenQuery)(LPCWSTR, DWORD, HQUERY*); |
| static DWORD (WINAPI *_PdhCloseQuery)(HQUERY); |
| static PDH_STATUS (WINAPI *_PdhCollectQueryData)(HQUERY); |
| static DWORD (WINAPI *_PdhGetFormattedCounterValue)(HCOUNTER, DWORD, LPDWORD, PPDH_FMT_COUNTERVALUE); |
| static PDH_STATUS (WINAPI *_PdhEnumObjectItems)(LPCTSTR, LPCTSTR, LPCTSTR, LPTSTR, LPDWORD, LPTSTR, LPDWORD, DWORD, DWORD); |
| static PDH_STATUS (WINAPI *_PdhRemoveCounter)(HCOUNTER); |
| static PDH_STATUS (WINAPI *_PdhLookupPerfNameByIndex)(LPCSTR, DWORD, LPSTR, LPDWORD); |
| static PDH_STATUS (WINAPI *_PdhMakeCounterPath)(PPDH_COUNTER_PATH_ELEMENTS, LPTSTR, LPDWORD, DWORD); |
| |
| public: |
| static PDH_STATUS PdhAddCounter(HQUERY, LPCSTR, DWORD, HCOUNTER*); |
| static PDH_STATUS PdhOpenQuery(LPCWSTR, DWORD, HQUERY*); |
| static DWORD PdhCloseQuery(HQUERY); |
| static PDH_STATUS PdhCollectQueryData(HQUERY); |
| static DWORD PdhGetFormattedCounterValue(HCOUNTER, DWORD, LPDWORD, PPDH_FMT_COUNTERVALUE); |
| static PDH_STATUS PdhEnumObjectItems(LPCTSTR, LPCTSTR, LPCTSTR, LPTSTR, LPDWORD, LPTSTR, LPDWORD, DWORD, DWORD); |
| static PDH_STATUS PdhRemoveCounter(HCOUNTER); |
| static PDH_STATUS PdhLookupPerfNameByIndex(LPCSTR, DWORD, LPSTR, LPDWORD); |
| static PDH_STATUS PdhMakeCounterPath(PPDH_COUNTER_PATH_ELEMENTS, LPTSTR, LPDWORD, DWORD); |
| static bool PdhStatusFail(PDH_STATUS pdhStat); |
| static bool PdhAttach(); |
| static bool PdhDetach(); |
| }; |
| |
| #endif // OS_WINDOWS_VM_PDH_INTERFACE_HPP |