/*

 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.

 *

 * 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 SHARE_GC_SHENANDOAH_HEURISTICS_SHENANDOAHADAPTIVEHEURISTICS_HPP

#define SHARE_GC_SHENANDOAH_HEURISTICS_SHENANDOAHADAPTIVEHEURISTICS_HPP

#include "gc/shenandoah/shenandoahHeuristics.hpp"

#include "gc/shenandoah/shenandoahPhaseTimings.hpp"

#include "utilities/numberSeq.hpp"

class ShenandoahAdaptiveHeuristics : public ShenandoahHeuristics {

private:

  TruncatedSeq* _cycle_gap_history;

  TruncatedSeq* _conc_mark_duration_history;

  TruncatedSeq* _conc_uprefs_duration_history;

public:

  ShenandoahAdaptiveHeuristics();

  virtual ~ShenandoahAdaptiveHeuristics();

  virtual void choose_collection_set_from_regiondata(ShenandoahCollectionSet* cset,

                                                     RegionData* data, size_t size,

                                                     size_t actual_free);

  void record_cycle_start();

  virtual void record_phase_time(ShenandoahPhaseTimings::Phase phase, double secs);

  virtual bool should_start_gc() const;

  virtual bool should_start_update_refs();

  virtual const char* name();

  virtual bool is_diagnostic();

  virtual bool is_experimental();

};

#endif // SHARE_GC_SHENANDOAH_HEURISTICS_SHENANDOAHADAPTIVEHEURISTICS_HPP