/*

 * Copyright 2001-2004 Sun Microsystems, Inc.  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.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

class GenMarkSweep : public MarkSweep {

  friend class VM_MarkSweep;

 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();

};