Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/parNew/parOopClosures.hpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | d2a62e0f25eb |
| children | 9766f73e770d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2007, 2012, 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_PARNEW_PAROOPCLOSURES_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP | |
| 27 | |
| 28 #include "memory/genOopClosures.hpp" | |
| 29 | |
| 0 | 30 // Closures for ParNewGeneration |
| 31 | |
| 32 class ParScanThreadState; | |
| 33 class ParNewGeneration; | |
| 1665 | 34 typedef Padded<OopTaskQueue> ObjToScanQueue; |
| 6197 | 35 typedef GenericTaskQueueSet<ObjToScanQueue, mtGC> ObjToScanQueueSet; |
| 0 | 36 class ParallelTaskTerminator; |
| 37 | |
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38 class ParScanClosure: public OopsInKlassOrGenClosure { |
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39 protected: |
| 0 | 40 ParScanThreadState* _par_scan_state; |
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41 ParNewGeneration* _g; |
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42 HeapWord* _boundary; |
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43 template <class T> void inline par_do_barrier(T* p); |
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44 template <class T> void inline do_oop_work(T* p, |
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45 bool gc_barrier, |
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46 bool root_scan); |
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47 public: |
| 0 | 48 ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state); |
| 49 }; | |
| 50 | |
| 51 class ParScanWithBarrierClosure: public ParScanClosure { | |
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52 public: |
| 0 | 53 ParScanWithBarrierClosure(ParNewGeneration* g, |
| 54 ParScanThreadState* par_scan_state) : | |
| 55 ParScanClosure(g, par_scan_state) {} | |
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56 virtual void do_oop(oop* p); |
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57 virtual void do_oop(narrowOop* p); |
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58 inline void do_oop_nv(oop* p); |
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59 inline void do_oop_nv(narrowOop* p); |
| 0 | 60 }; |
| 61 | |
| 62 class ParScanWithoutBarrierClosure: public ParScanClosure { | |
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63 public: |
| 0 | 64 ParScanWithoutBarrierClosure(ParNewGeneration* g, |
| 65 ParScanThreadState* par_scan_state) : | |
| 66 ParScanClosure(g, par_scan_state) {} | |
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67 virtual void do_oop(oop* p); |
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68 virtual void do_oop(narrowOop* p); |
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69 inline void do_oop_nv(oop* p); |
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70 inline void do_oop_nv(narrowOop* p); |
| 0 | 71 }; |
| 72 | |
| 73 class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure { | |
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74 public: |
| 0 | 75 ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g, |
| 76 ParScanThreadState* par_scan_state) : | |
| 77 ParScanClosure(g, par_scan_state) {} | |
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78 virtual void do_oop(oop* p); |
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79 virtual void do_oop(narrowOop* p); |
| 0 | 80 }; |
| 81 | |
| 82 class ParRootScanWithoutBarrierClosure: public ParScanClosure { | |
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83 public: |
| 0 | 84 ParRootScanWithoutBarrierClosure(ParNewGeneration* g, |
| 85 ParScanThreadState* par_scan_state) : | |
| 86 ParScanClosure(g, par_scan_state) {} | |
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87 virtual void do_oop(oop* p); |
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88 virtual void do_oop(narrowOop* p); |
| 0 | 89 }; |
| 90 | |
| 91 class ParScanWeakRefClosure: public ScanWeakRefClosure { | |
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92 protected: |
| 0 | 93 ParScanThreadState* _par_scan_state; |
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94 template <class T> inline void do_oop_work(T* p); |
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95 public: |
| 0 | 96 ParScanWeakRefClosure(ParNewGeneration* g, |
| 97 ParScanThreadState* par_scan_state); | |
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98 virtual void do_oop(oop* p); |
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99 virtual void do_oop(narrowOop* p); |
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100 inline void do_oop_nv(oop* p); |
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101 inline void do_oop_nv(narrowOop* p); |
| 0 | 102 }; |
| 103 | |
| 104 class ParEvacuateFollowersClosure: public VoidClosure { | |
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105 private: |
| 0 | 106 ParScanThreadState* _par_scan_state; |
| 107 ParScanThreadState* par_scan_state() { return _par_scan_state; } | |
| 108 | |
| 109 // We want to preserve the specific types here (rather than "OopClosure") | |
| 110 // for later de-virtualization of do_oop calls. | |
| 111 ParScanWithoutBarrierClosure* _to_space_closure; | |
| 112 ParScanWithoutBarrierClosure* to_space_closure() { | |
| 113 return _to_space_closure; | |
| 114 } | |
| 115 ParRootScanWithoutBarrierClosure* _to_space_root_closure; | |
| 116 ParRootScanWithoutBarrierClosure* to_space_root_closure() { | |
| 117 return _to_space_root_closure; | |
| 118 } | |
| 119 | |
| 120 ParScanWithBarrierClosure* _old_gen_closure; | |
| 121 ParScanWithBarrierClosure* old_gen_closure () { | |
| 122 return _old_gen_closure; | |
| 123 } | |
| 124 ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure; | |
| 125 ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () { | |
| 126 return _old_gen_root_closure; | |
| 127 } | |
| 128 | |
| 129 ParNewGeneration* _par_gen; | |
| 130 ParNewGeneration* par_gen() { return _par_gen; } | |
| 131 | |
| 132 ObjToScanQueueSet* _task_queues; | |
| 133 ObjToScanQueueSet* task_queues() { return _task_queues; } | |
| 134 | |
| 135 ParallelTaskTerminator* _terminator; | |
| 136 ParallelTaskTerminator* terminator() { return _terminator; } | |
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137 public: |
| 0 | 138 ParEvacuateFollowersClosure( |
| 139 ParScanThreadState* par_scan_state_, | |
| 140 ParScanWithoutBarrierClosure* to_space_closure_, | |
| 141 ParScanWithBarrierClosure* old_gen_closure_, | |
| 142 ParRootScanWithoutBarrierClosure* to_space_root_closure_, | |
| 143 ParNewGeneration* par_gen_, | |
| 144 ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_, | |
| 145 ObjToScanQueueSet* task_queues_, | |
| 146 ParallelTaskTerminator* terminator_); | |
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147 virtual void do_void(); |
| 0 | 148 }; |
| 1972 | 149 |
| 150 #endif // SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP |