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annotate src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.hpp @ 3710:4e037604f6ee
use alignment for constants specified in DataPatch.alignment
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Mon, 05 Dec 2011 18:15:25 -0800 |
parents | f95d63e2154a |
children | ab4422d0ed59 |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP | |
27 | |
28 #include "gc_implementation/shared/collectorCounters.hpp" | |
29 #include "gc_implementation/shared/markSweep.inline.hpp" | |
30 #include "utilities/stack.hpp" | |
31 | |
0 | 32 class PSAdaptiveSizePolicy; |
33 class PSYoungGen; | |
34 class PSOldGen; | |
35 | |
36 class PSMarkSweep : public MarkSweep { | |
37 private: | |
38 static elapsedTimer _accumulated_time; | |
39 static unsigned int _total_invocations; | |
40 static jlong _time_of_last_gc; // ms | |
41 static CollectorCounters* _counters; | |
42 | |
43 // Closure accessors | |
44 static OopClosure* mark_and_push_closure() { return &MarkSweep::mark_and_push_closure; } | |
45 static VoidClosure* follow_stack_closure() { return (VoidClosure*)&MarkSweep::follow_stack_closure; } | |
46 static OopClosure* adjust_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_pointer_closure; } | |
47 static OopClosure* adjust_root_pointer_closure() { return (OopClosure*)&MarkSweep::adjust_root_pointer_closure; } | |
48 static BoolObjectClosure* is_alive_closure() { return (BoolObjectClosure*)&MarkSweep::is_alive; } | |
49 | |
50 debug_only(public:) // Used for PSParallelCompact debugging | |
51 // Mark live objects | |
52 static void mark_sweep_phase1(bool clear_all_softrefs); | |
53 // Calculate new addresses | |
54 static void mark_sweep_phase2(); | |
55 debug_only(private:) // End used for PSParallelCompact debugging | |
56 // Update pointers | |
57 static void mark_sweep_phase3(); | |
58 // Move objects to new positions | |
59 static void mark_sweep_phase4(); | |
60 | |
61 debug_only(public:) // Used for PSParallelCompact debugging | |
62 // Temporary data structures for traversal and storing/restoring marks | |
63 static void allocate_stacks(); | |
64 static void deallocate_stacks(); | |
65 static void set_ref_processor(ReferenceProcessor* rp) { // delete this method | |
66 _ref_processor = rp; | |
67 } | |
68 debug_only(private:) // End used for PSParallelCompact debugging | |
69 | |
70 // If objects are left in eden after a collection, try to move the boundary | |
71 // and absorb them into the old gen. Returns true if eden was emptied. | |
72 static bool absorb_live_data_from_eden(PSAdaptiveSizePolicy* size_policy, | |
73 PSYoungGen* young_gen, | |
74 PSOldGen* old_gen); | |
75 | |
76 // Reset time since last full gc | |
77 static void reset_millis_since_last_gc(); | |
78 | |
79 public: | |
80 static void invoke(bool clear_all_softrefs); | |
81 static void invoke_no_policy(bool clear_all_softrefs); | |
82 | |
83 static void initialize(); | |
84 | |
85 // Public accessors | |
86 static elapsedTimer* accumulated_time() { return &_accumulated_time; } | |
87 static unsigned int total_invocations() { return _total_invocations; } | |
88 static CollectorCounters* counters() { return _counters; } | |
89 | |
90 // Time since last full gc (in milliseconds) | |
91 static jlong millis_since_last_gc(); | |
92 }; | |
1972 | 93 |
94 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSMARKSWEEP_HPP |