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ParallelScavengeTask.hpp
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ParallelScavengeTask.hpp
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/*******************************************************************************
* Copyright (c) 2015, 2020 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* 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
*******************************************************************************/
/**
* @file
* @ingroup GC_Modron_Standard
*/
#if !defined(GC_BASE_STANDARD_PARALLELSCAVENGETASK_HPP_)
#define GC_BASE_STANDARD_PARALLELSCAVENGETASK_HPP_
#include "omrcfg.h"
#if defined(OMR_GC_MODRON_SCAVENGER)
#include "modronopt.h"
#include "omrmodroncore.h"
#include "CycleState.hpp"
#include "ParallelTask.hpp"
class MM_EnvironmentBase;
class MM_ParallelDispatcher;
/**
* @todo Provide class documentation
* @ingroup GC_Modron_Standard
*/
class MM_ParallelScavengeTask : public MM_ParallelTask
{
protected:
MM_Scavenger *_collector;
MM_CycleState *_cycleState; /**< Collection cycle state active for the task */
uintptr_t _recommendedThreads; /**< Collector recommended threads for the task */
public:
virtual UDATA getVMStateID() { return OMRVMSTATE_GC_SCAVENGE; };
virtual void run(MM_EnvironmentBase *env);
virtual void setup(MM_EnvironmentBase *env);
virtual void cleanup(MM_EnvironmentBase *env);
virtual void mainSetup(MM_EnvironmentBase *env);
#if defined(J9MODRON_TGC_PARALLEL_STATISTICS)
/**
* Override to collect stall time statistics.
* @see MM_ParallelTask::synchronizeGCThreads
*/
virtual void synchronizeGCThreads(MM_EnvironmentBase *env, const char *id);
/**
* Override to collect stall time statistics.
* @see MM_ParallelTask::synchronizeGCThreadsAndReleaseMain
*/
virtual bool synchronizeGCThreadsAndReleaseMain(MM_EnvironmentBase *env, const char *id);
/**
* Override to collect stall time statistics.
* @see MM_ParallelTask::synchronizeGCThreadsAndReleaseSingleThread
*/
virtual bool synchronizeGCThreadsAndReleaseSingleThread(MM_EnvironmentBase *env, const char *id);
virtual void addToNotifyStallTime(MM_EnvironmentBase *env, uint64_t startTime, uint64_t endTime);
#endif /* J9MODRON_TGC_PARALLEL_STATISTICS */
virtual uintptr_t getRecommendedWorkingThreads() { return _recommendedThreads; };
/**
* Create a ParallelScavengeTask object.
*/
MM_ParallelScavengeTask(MM_EnvironmentBase *env, MM_ParallelDispatcher *dispatcher, MM_Scavenger *collector,MM_CycleState *cycleState, uintptr_t recommendedThreads) :
MM_ParallelTask(env, dispatcher)
,_collector(collector)
,_cycleState(cycleState)
,_recommendedThreads(recommendedThreads)
{
_typeId = __FUNCTION__;
};
};
#endif /* defined(OMR_GC_MODRON_SCAVENGER) */
#endif /* GC_BASE_STANDARD_PARALLELSCAVENGETASK_HPP_ */