/*
 * Copyright (c) 2019, 2021, Red Hat, Inc. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 * 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.
 *
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#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHPARALLELCLEANING_HPP
#define SHARE_GC_SHENANDOAH_SHENANDOAHPARALLELCLEANING_HPP

#include "gc/shared/parallelCleaning.hpp"
#include "gc/shared/weakProcessor.hpp"
#include "gc/shared/workerThread.hpp"
#include "gc/shenandoah/shenandoahPhaseTimings.hpp"
#include "memory/iterator.hpp"

// Perform weak root cleaning at a pause
template <typename IsAlive, typename KeepAlive>
class ShenandoahParallelWeakRootsCleaningTask : public WorkerTask {
protected:
  ShenandoahPhaseTimings::Phase const _phase;
  WeakProcessor::Task                 _weak_processing_task;
  IsAlive*                            _is_alive;
  KeepAlive*                          _keep_alive;

public:
  ShenandoahParallelWeakRootsCleaningTask(ShenandoahPhaseTimings::Phase phase,
                                          IsAlive* is_alive,
                                          KeepAlive* keep_alive,
                                          uint num_workers);
  ~ShenandoahParallelWeakRootsCleaningTask();

  void work(uint worker_id);
};

// Perform class unloading at a pause
class ShenandoahClassUnloadingTask : public WorkerTask {
private:
  ShenandoahPhaseTimings::Phase const _phase;
  bool                                _unloading_occurred;
  CodeCacheUnloadingTask              _code_cache_task;
  KlassCleaningTask                   _klass_cleaning_task;
public:
  ShenandoahClassUnloadingTask(ShenandoahPhaseTimings::Phase phase,
                               uint num_workers,
                               bool unloading_occurred);

  void work(uint worker_id);
};

#endif // SHARE_GC_SHENANDOAH_SHENANDOAHPARALLELCLEANING_HPP