duke@435: /*
duke@435:  * Copyright 2001-2004 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: class GenMarkSweep : public MarkSweep {
duke@435:   friend class VM_MarkSweep;
duke@435:  public:
duke@435:   static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
duke@435:                                   bool clear_all_softrefs);
duke@435: 
duke@435:  private:
duke@435: 
duke@435:   // Mark live objects
duke@435:   static void mark_sweep_phase1(int level, bool clear_all_softrefs);
duke@435:   // Calculate new addresses
duke@435:   static void mark_sweep_phase2();
duke@435:   // Update pointers
duke@435:   static void mark_sweep_phase3(int level);
duke@435:   // Move objects to new positions
duke@435:   static void mark_sweep_phase4();
duke@435: 
duke@435:   // Temporary data structures for traversal and storing/restoring marks
duke@435:   static void allocate_stacks();
duke@435:   static void deallocate_stacks();
duke@435: };