src/hotspot/share/gc/shenandoah/heuristics/shenandoahPassiveHeuristics.hpp
author rkennke
Mon, 10 Dec 2018 15:47:44 +0100
changeset 52925 9c18c9d839d3
child 53244 9807daeb47c4
permissions -rw-r--r--
8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental) Reviewed-by: kvn, roland, shade, coleenp, lmesnik, pliden, jgeorge, ihse, erikj Contributed-by: Christine Flood <chf@redhat.com>, Aleksey Shipilev <shade@redhat.com>, Roland Westrelin <rwestrel@redhat.com>, Zhenygu Gu <zgu@redhat.com>, Andrew Haley <aph@redhat.com>, Andrew Dinn <adinn@redhat.com>, Mario Torre <mtorre@redhat.com>, Roman Kennke <rkennke@redhat.com>

/*
 * 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_VM_GC_SHENANDOAH_HEURISTICS_SHENANDOAHPASSIVEHEURISTICS_HPP
#define SHARE_VM_GC_SHENANDOAH_HEURISTICS_SHENANDOAHPASSIVEHEURISTICS_HPP

#include "gc/shenandoah/shenandoahHeuristics.hpp"

class ShenandoahPassiveHeuristics : public ShenandoahHeuristics {
public:
  ShenandoahPassiveHeuristics();

  virtual bool should_start_normal_gc() const;

  virtual bool should_process_references();

  virtual bool should_unload_classes();

  virtual bool should_degenerate_cycle();

  virtual void choose_collection_set_from_regiondata(ShenandoahCollectionSet* set,
                                                     RegionData* data, size_t data_size,
                                                     size_t free);

  virtual const char* name();

  virtual bool is_diagnostic();

  virtual bool is_experimental();
};

#endif // SHARE_VM_GC_SHENANDOAH_HEURISTICS_SHENANDOAHPASSIVEHEURISTICS_HPP