67 lines
3.1 KiB
C++
67 lines
3.1 KiB
C++
/*
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* Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef OS_WINDOWS_PDH_INTERFACE_HPP
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#define OS_WINDOWS_PDH_INTERFACE_HPP
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#include "memory/allocation.hpp"
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#include <pdh.h>
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#include <pdhmsg.h>
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class PdhDll: public AllStatic {
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private:
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static LONG _pdh_reference_count;
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static LONG _critical_section;
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static LONG _initialized;
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static HMODULE _hModule;
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static void initialize();
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static PDH_STATUS (WINAPI *_PdhAddCounter)(HQUERY, LPCSTR, DWORD, HCOUNTER*);
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static PDH_STATUS (WINAPI *_PdhOpenQuery)(LPCWSTR, DWORD, HQUERY*);
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static DWORD (WINAPI *_PdhCloseQuery)(HQUERY);
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static PDH_STATUS (WINAPI *_PdhCollectQueryData)(HQUERY);
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static DWORD (WINAPI *_PdhGetFormattedCounterValue)(HCOUNTER, DWORD, LPDWORD, PPDH_FMT_COUNTERVALUE);
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static PDH_STATUS (WINAPI *_PdhEnumObjectItems)(LPCTSTR, LPCTSTR, LPCTSTR, LPTSTR, LPDWORD, LPTSTR, LPDWORD, DWORD, DWORD);
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static PDH_STATUS (WINAPI *_PdhRemoveCounter)(HCOUNTER);
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static PDH_STATUS (WINAPI *_PdhLookupPerfNameByIndex)(LPCSTR, DWORD, LPSTR, LPDWORD);
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static PDH_STATUS (WINAPI *_PdhMakeCounterPath)(PPDH_COUNTER_PATH_ELEMENTS, LPTSTR, LPDWORD, DWORD);
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static PDH_STATUS (WINAPI *_PdhExpandWildCardPath)(LPCSTR, LPCSTR, PZZSTR, LPDWORD, DWORD);
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public:
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static PDH_STATUS PdhAddCounter(HQUERY, LPCSTR, DWORD, HCOUNTER*);
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static PDH_STATUS PdhOpenQuery(LPCWSTR, DWORD, HQUERY*);
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static DWORD PdhCloseQuery(HQUERY);
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static PDH_STATUS PdhCollectQueryData(HQUERY);
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static DWORD PdhGetFormattedCounterValue(HCOUNTER, DWORD, LPDWORD, PPDH_FMT_COUNTERVALUE);
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static PDH_STATUS PdhEnumObjectItems(LPCTSTR, LPCTSTR, LPCTSTR, LPTSTR, LPDWORD, LPTSTR, LPDWORD, DWORD, DWORD);
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static PDH_STATUS PdhRemoveCounter(HCOUNTER);
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static PDH_STATUS PdhLookupPerfNameByIndex(LPCSTR, DWORD, LPSTR, LPDWORD);
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static PDH_STATUS PdhMakeCounterPath(PPDH_COUNTER_PATH_ELEMENTS, LPTSTR, LPDWORD, DWORD);
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static PDH_STATUS PdhExpandWildCardPath(LPCSTR, LPCSTR, PZZSTR, LPDWORD, DWORD);
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static bool PdhStatusFail(PDH_STATUS pdhStat);
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static bool PdhAttach();
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static bool PdhDetach();
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};
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#endif // OS_WINDOWS_PDH_INTERFACE_HPP
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