1 /*
2 * Copyright (c) 2001, 2004, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 class GenMarkSweep : public MarkSweep {
26 friend class VM_MarkSweep;
27 friend class G1MarkSweep;
28 public:
29 static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
30 bool clear_all_softrefs);
31
32 private:
33
34 // Mark live objects
35 static void mark_sweep_phase1(int level, bool clear_all_softrefs);
36 // Calculate new addresses
37 static void mark_sweep_phase2();
38 // Update pointers
39 static void mark_sweep_phase3(int level);
40 // Move objects to new positions
41 static void mark_sweep_phase4();
42
43 // Temporary data structures for traversal and storing/restoring marks
44 static void allocate_stacks();
45 static void deallocate_stacks();
46 };
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1 /*
2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_MEMORY_GENMARKSWEEP_HPP
26 #define SHARE_VM_MEMORY_GENMARKSWEEP_HPP
27
28 #include "gc_implementation/shared/markSweep.hpp"
29
30 class GenMarkSweep : public MarkSweep {
31 friend class VM_MarkSweep;
32 friend class G1MarkSweep;
33 public:
34 static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
35 bool clear_all_softrefs);
36
37 private:
38
39 // Mark live objects
40 static void mark_sweep_phase1(int level, bool clear_all_softrefs);
41 // Calculate new addresses
42 static void mark_sweep_phase2();
43 // Update pointers
44 static void mark_sweep_phase3(int level);
45 // Move objects to new positions
46 static void mark_sweep_phase4();
47
48 // Temporary data structures for traversal and storing/restoring marks
49 static void allocate_stacks();
50 static void deallocate_stacks();
51 };
52
53 #endif // SHARE_VM_MEMORY_GENMARKSWEEP_HPP
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