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annotate src/share/vm/gc_implementation/parallelScavenge/psTasks.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
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| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 148e5441d916 |
| children | f95d63e2154a |
| rev | line source |
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| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 2005, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // | |
| 26 // psTasks.hpp is a collection of GCTasks used by the | |
| 27 // parallelScavenge collector. | |
| 28 // | |
| 29 | |
| 30 class GCTask; | |
| 31 class OopClosure; | |
| 32 class OopStack; | |
| 33 class ObjectStartArray; | |
| 34 class ParallelTaskTerminator; | |
| 35 class MutableSpace; | |
| 36 class PSOldGen; | |
| 37 class Thread; | |
| 38 class VMThread; | |
| 39 | |
| 40 // | |
| 41 // ScavengeRootsTask | |
| 42 // | |
| 43 // This task scans all the roots of a given type. | |
| 44 // | |
| 45 // | |
| 46 | |
| 47 class ScavengeRootsTask : public GCTask { | |
| 48 public: | |
| 49 enum RootType { | |
| 50 universe = 1, | |
| 51 jni_handles = 2, | |
| 52 threads = 3, | |
| 53 object_synchronizer = 4, | |
| 54 flat_profiler = 5, | |
| 55 system_dictionary = 6, | |
| 56 management = 7, | |
| 989 | 57 jvmti = 8, |
| 58 code_cache = 9 | |
| 0 | 59 }; |
| 60 private: | |
| 61 RootType _root_type; | |
| 62 public: | |
| 63 ScavengeRootsTask(RootType value) : _root_type(value) {} | |
| 64 | |
| 65 char* name() { return (char *)"scavenge-roots-task"; } | |
| 66 | |
| 67 virtual void do_it(GCTaskManager* manager, uint which); | |
| 68 }; | |
| 69 | |
| 70 // | |
| 71 // ThreadRootsTask | |
| 72 // | |
| 73 // This task scans the roots of a single thread. This task | |
| 74 // enables scanning of thread roots in parallel. | |
| 75 // | |
| 76 | |
| 77 class ThreadRootsTask : public GCTask { | |
| 78 private: | |
| 79 JavaThread* _java_thread; | |
| 80 VMThread* _vm_thread; | |
| 81 public: | |
| 82 ThreadRootsTask(JavaThread* root) : _java_thread(root), _vm_thread(NULL) {} | |
| 83 ThreadRootsTask(VMThread* root) : _java_thread(NULL), _vm_thread(root) {} | |
| 84 | |
| 85 char* name() { return (char *)"thread-roots-task"; } | |
| 86 | |
| 87 virtual void do_it(GCTaskManager* manager, uint which); | |
| 88 }; | |
| 89 | |
| 90 // | |
| 91 // StealTask | |
| 92 // | |
| 93 // This task is used to distribute work to idle threads. | |
| 94 // | |
| 95 | |
| 96 class StealTask : public GCTask { | |
| 97 private: | |
| 98 ParallelTaskTerminator* const _terminator; | |
| 99 public: | |
| 100 char* name() { return (char *)"steal-task"; } | |
| 101 | |
| 102 StealTask(ParallelTaskTerminator* t); | |
| 103 | |
| 104 ParallelTaskTerminator* terminator() { return _terminator; } | |
| 105 | |
| 106 virtual void do_it(GCTaskManager* manager, uint which); | |
| 107 }; | |
| 108 | |
| 109 // | |
| 110 // SerialOldToYoungRootsTask | |
| 111 // | |
| 112 // This task is used to scan for roots in the perm gen | |
| 113 | |
| 114 class SerialOldToYoungRootsTask : public GCTask { | |
| 115 private: | |
| 116 PSOldGen* _gen; | |
| 117 HeapWord* _gen_top; | |
| 118 | |
| 119 public: | |
| 120 SerialOldToYoungRootsTask(PSOldGen *gen, HeapWord* gen_top) : | |
| 121 _gen(gen), _gen_top(gen_top) { } | |
| 122 | |
| 123 char* name() { return (char *)"serial-old-to-young-roots-task"; } | |
| 124 | |
| 125 virtual void do_it(GCTaskManager* manager, uint which); | |
| 126 }; | |
| 127 | |
| 128 // | |
| 129 // OldToYoungRootsTask | |
| 130 // | |
| 131 // This task is used to scan old to young roots in parallel | |
| 132 | |
| 133 class OldToYoungRootsTask : public GCTask { | |
| 134 private: | |
| 135 PSOldGen* _gen; | |
| 136 HeapWord* _gen_top; | |
| 137 uint _stripe_number; | |
| 138 | |
| 139 public: | |
| 140 OldToYoungRootsTask(PSOldGen *gen, HeapWord* gen_top, uint stripe_number) : | |
| 141 _gen(gen), _gen_top(gen_top), _stripe_number(stripe_number) { } | |
| 142 | |
| 143 char* name() { return (char *)"old-to-young-roots-task"; } | |
| 144 | |
| 145 virtual void do_it(GCTaskManager* manager, uint which); | |
| 146 }; |