/*

 * Copyright (c) 2013, 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_SHENANDOAHCOLLECTORPOLICY_HPP

#define SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTORPOLICY_HPP

#include "gc/shenandoah/shenandoahHeap.hpp"

#include "gc/shenandoah/shenandoahTracer.hpp"

#include "memory/allocation.hpp"

#include "utilities/ostream.hpp"

class ShenandoahCollectorPolicy : public CHeapObj<mtGC> {

private:

  size_t _success_concurrent_gcs;

  size_t _success_degenerated_gcs;

  size_t _success_full_gcs;

  size_t _alloc_failure_degenerated;

  size_t _alloc_failure_degenerated_upgrade_to_full;

  size_t _alloc_failure_full;

  size_t _explicit_concurrent;

  size_t _explicit_full;

  size_t _implicit_concurrent;

  size_t _implicit_full;

  size_t _degen_points[ShenandoahHeap::_DEGENERATED_LIMIT];

  ShenandoahSharedFlag _in_shutdown;

  ShenandoahTracer* _tracer;

  size_t _cycle_counter;

public:

  ShenandoahCollectorPolicy();

  // TODO: This is different from gc_end: that one encompasses one VM operation.

  // These two encompass the entire cycle.

  void record_cycle_start();

  void record_success_concurrent();

  void record_success_degenerated();

  void record_success_full();

  void record_alloc_failure_to_degenerated(ShenandoahHeap::ShenandoahDegenPoint point);

  void record_alloc_failure_to_full();

  void record_degenerated_upgrade_to_full();

  void record_explicit_to_concurrent();

  void record_explicit_to_full();

  void record_implicit_to_concurrent();

  void record_implicit_to_full();

  void record_shutdown();

  bool is_at_shutdown();

  ShenandoahTracer* tracer() {return _tracer;}

  size_t cycle_counter() const;

  void print_gc_stats(outputStream* out) const;

};

#endif // SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTORPOLICY_HPP