1 #ifdef USE_PRAGMA_IDENT_HDR 2 #pragma ident "@(#)genMarkSweep.hpp 1.11 07/05/05 17:05:49 JVM" 3 #endif 4 /* 5 * Copyright 2001-2004 Sun Microsystems, Inc. All Rights Reserved. 6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 7 * 8 * This code is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License version 2 only, as 10 * published by the Free Software Foundation. 11 * 12 * This code is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * version 2 for more details (a copy is included in the LICENSE file that 16 * accompanied this code). 17 * 18 * You should have received a copy of the GNU General Public License version 19 * 2 along with this work; if not, write to the Free Software Foundation, 20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 21 * 22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 23 * CA 95054 USA or visit www.sun.com if you need additional information or 24 * have any questions. 25 * 26 */ 27 28 class GenMarkSweep : public MarkSweep { 29 friend class VM_MarkSweep; 30 friend class G1MarkSweep; 31 public: 32 static void invoke_at_safepoint(int level, ReferenceProcessor* rp, 33 bool clear_all_softrefs); 34 35 private: 36 37 // Mark live objects 38 static void mark_sweep_phase1(int level, bool clear_all_softrefs); 39 // Calculate new addresses 40 static void mark_sweep_phase2(); 41 // Update pointers 42 static void mark_sweep_phase3(int level); 43 // Move objects to new positions 44 static void mark_sweep_phase4(); 45 46 // Temporary data structures for traversal and storing/restoring marks 47 static void allocate_stacks(); 48 static void deallocate_stacks(); 49 };