jdk-24/hotspot/src/share/vm/gc/serial/genMarkSweep.hpp

/*
 * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * 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.
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#ifndef SHARE_VM_GC_SERIAL_GENMARKSWEEP_HPP
#define SHARE_VM_GC_SERIAL_GENMARKSWEEP_HPP

#include "gc/serial/markSweep.hpp"

class GenMarkSweep : public MarkSweep {
  friend class VM_MarkSweep;
  friend class G1MarkSweep;
 public:
  static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
                                  bool clear_all_softrefs);

 private:

  // Mark live objects
  static void mark_sweep_phase1(int level, bool clear_all_softrefs);
  // Calculate new addresses
  static void mark_sweep_phase2();
  // Update pointers
  static void mark_sweep_phase3(int level);
  // Move objects to new positions
  static void mark_sweep_phase4();

  // Temporary data structures for traversal and storing/restoring marks
  static void allocate_stacks();
  static void deallocate_stacks();
};

#endif // SHARE_VM_GC_SERIAL_GENMARKSWEEP_HPP