Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/parNew/parOopClosures.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | ba764ed4b6f2 |
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1 /* | |
2 * Copyright (c) 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // Closures for ParNewGeneration | |
26 | |
27 class ParScanThreadState; | |
28 class ParNewGeneration; | |
29 template<class E> class GenericTaskQueueSet; | |
30 typedef GenericTaskQueueSet<oop> ObjToScanQueueSet; | |
31 class ParallelTaskTerminator; | |
32 | |
33 class ParScanClosure: public OopsInGenClosure { | |
34 protected: | |
35 ParScanThreadState* _par_scan_state; | |
36 ParNewGeneration* _g; | |
37 HeapWord* _boundary; | |
38 void do_oop_work(oop* p, | |
39 bool gc_barrier, | |
40 bool root_scan); | |
41 | |
42 void par_do_barrier(oop* p); | |
43 | |
44 public: | |
45 ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state); | |
46 }; | |
47 | |
48 class ParScanWithBarrierClosure: public ParScanClosure { | |
49 public: | |
50 void do_oop(oop* p) { do_oop_work(p, true, false); } | |
51 void do_oop_nv(oop* p) { do_oop_work(p, true, false); } | |
52 ParScanWithBarrierClosure(ParNewGeneration* g, | |
53 ParScanThreadState* par_scan_state) : | |
54 ParScanClosure(g, par_scan_state) {} | |
55 }; | |
56 | |
57 class ParScanWithoutBarrierClosure: public ParScanClosure { | |
58 public: | |
59 ParScanWithoutBarrierClosure(ParNewGeneration* g, | |
60 ParScanThreadState* par_scan_state) : | |
61 ParScanClosure(g, par_scan_state) {} | |
62 void do_oop(oop* p) { do_oop_work(p, false, false); } | |
63 void do_oop_nv(oop* p) { do_oop_work(p, false, false); } | |
64 }; | |
65 | |
66 class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure { | |
67 public: | |
68 ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g, | |
69 ParScanThreadState* par_scan_state) : | |
70 ParScanClosure(g, par_scan_state) {} | |
71 void do_oop(oop* p) { do_oop_work(p, true, true); } | |
72 }; | |
73 | |
74 class ParRootScanWithoutBarrierClosure: public ParScanClosure { | |
75 public: | |
76 ParRootScanWithoutBarrierClosure(ParNewGeneration* g, | |
77 ParScanThreadState* par_scan_state) : | |
78 ParScanClosure(g, par_scan_state) {} | |
79 void do_oop(oop* p) { do_oop_work(p, false, true); } | |
80 }; | |
81 | |
82 class ParScanWeakRefClosure: public ScanWeakRefClosure { | |
83 protected: | |
84 ParScanThreadState* _par_scan_state; | |
85 public: | |
86 ParScanWeakRefClosure(ParNewGeneration* g, | |
87 ParScanThreadState* par_scan_state); | |
88 void do_oop(oop* p); | |
89 void do_oop_nv(oop* p); | |
90 }; | |
91 | |
92 class ParEvacuateFollowersClosure: public VoidClosure { | |
93 ParScanThreadState* _par_scan_state; | |
94 ParScanThreadState* par_scan_state() { return _par_scan_state; } | |
95 | |
96 // We want to preserve the specific types here (rather than "OopClosure") | |
97 // for later de-virtualization of do_oop calls. | |
98 ParScanWithoutBarrierClosure* _to_space_closure; | |
99 ParScanWithoutBarrierClosure* to_space_closure() { | |
100 return _to_space_closure; | |
101 } | |
102 ParRootScanWithoutBarrierClosure* _to_space_root_closure; | |
103 ParRootScanWithoutBarrierClosure* to_space_root_closure() { | |
104 return _to_space_root_closure; | |
105 } | |
106 | |
107 ParScanWithBarrierClosure* _old_gen_closure; | |
108 ParScanWithBarrierClosure* old_gen_closure () { | |
109 return _old_gen_closure; | |
110 } | |
111 ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure; | |
112 ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () { | |
113 return _old_gen_root_closure; | |
114 } | |
115 | |
116 ParNewGeneration* _par_gen; | |
117 ParNewGeneration* par_gen() { return _par_gen; } | |
118 | |
119 ObjToScanQueueSet* _task_queues; | |
120 ObjToScanQueueSet* task_queues() { return _task_queues; } | |
121 | |
122 ParallelTaskTerminator* _terminator; | |
123 ParallelTaskTerminator* terminator() { return _terminator; } | |
124 | |
125 public: | |
126 ParEvacuateFollowersClosure( | |
127 ParScanThreadState* par_scan_state_, | |
128 ParScanWithoutBarrierClosure* to_space_closure_, | |
129 ParScanWithBarrierClosure* old_gen_closure_, | |
130 ParRootScanWithoutBarrierClosure* to_space_root_closure_, | |
131 ParNewGeneration* par_gen_, | |
132 ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_, | |
133 ObjToScanQueueSet* task_queues_, | |
134 ParallelTaskTerminator* terminator_); | |
135 void do_void(); | |
136 }; |