Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1MarkSweep.hpp @ 1616:38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
Reviewed-by: dcubed, kvn, twisti
author | never |
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date | Mon, 21 Jun 2010 14:26:17 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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342 | 1 /* |
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2 * Copyright (c) 2001, 2007, Oracle and/or its affiliates. All rights reserved. |
342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
342 | 22 * |
23 */ | |
24 | |
25 class ReferenceProcessor; | |
26 | |
27 // G1MarkSweep takes care of global mark-compact garbage collection for a | |
28 // G1CollectedHeap using a four-phase pointer forwarding algorithm. All | |
29 // generations are assumed to support marking; those that can also support | |
30 // compaction. | |
31 // | |
32 // Class unloading will only occur when a full gc is invoked. | |
33 | |
34 | |
35 class G1MarkSweep : AllStatic { | |
36 friend class VM_G1MarkSweep; | |
37 friend class Scavenge; | |
38 | |
39 public: | |
40 | |
41 static void invoke_at_safepoint(ReferenceProcessor* rp, | |
42 bool clear_all_softrefs); | |
43 | |
44 private: | |
45 | |
46 // Mark live objects | |
47 static void mark_sweep_phase1(bool& marked_for_deopt, | |
48 bool clear_all_softrefs); | |
49 // Calculate new addresses | |
50 static void mark_sweep_phase2(); | |
51 // Update pointers | |
52 static void mark_sweep_phase3(); | |
53 // Move objects to new positions | |
54 static void mark_sweep_phase4(); | |
55 | |
56 static void allocate_stacks(); | |
57 }; |