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PojavLauncherTeam
GitHub Repository: PojavLauncherTeam/openj9
Path: blob/master/runtime/gc_realtime/ProcessorInfo.hpp
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/*******************************************************************************
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* Copyright (c) 1991, 2019 IBM Corp. and others
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*
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* This program and the accompanying materials are made available under
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* the terms of the Eclipse Public License 2.0 which accompanies this
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* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
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* or the Apache License, Version 2.0 which accompanies this distribution and
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* is available at https://www.apache.org/licenses/LICENSE-2.0.
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*
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* This Source Code may also be made available under the following
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* Secondary Licenses when the conditions for such availability set
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* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
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* General Public License, version 2 with the GNU Classpath
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* Exception [1] and GNU General Public License, version 2 with the
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* OpenJDK Assembly Exception [2].
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*
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* [1] https://www.gnu.org/software/classpath/license.html
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* [2] http://openjdk.java.net/legal/assembly-exception.html
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*
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* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
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*******************************************************************************/
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/**
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* @file
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* @ingroup GC_Metronome
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*/
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#if !defined(PROCESSORINFO_HPP_)
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#define PROCESSORINFO_HPP_
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#include "BaseVirtual.hpp"
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#include "GCExtensionsBase.hpp"
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class MM_EnvironmentBase;
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class MM_OSInterface;
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/**
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* @todo Provide class documentation
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* @ingroup GC_Metronome
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*/
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class MM_ProcessorInfo : public MM_BaseVirtual
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{
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public:
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MM_ProcessorInfo() :
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_freq(0)
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{
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_typeId = __FUNCTION__;
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}
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static MM_ProcessorInfo *newInstance(MM_EnvironmentBase *env);
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bool initialize(MM_EnvironmentBase *env);
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virtual void kill(MM_EnvironmentBase *env);
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void tearDown(MM_EnvironmentBase *env);
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double _freq; /**< The measured frequency of this processor */
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double tickToSecond(U_64 t);
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U_64 secondToTick(double s); /**< Users should note that double's have less precision than U_64 */
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private:
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double readFrequency();
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};
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#endif /* PROCESSORINFO_HPP_ */
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