Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/gcTimer.hpp @ 14309:63a4eb8bcd23
8025856: Fix typos in the GC code
Summary: Fix about 440 typos in comments in the VM code
Reviewed-by: mgerdin, tschatzl, coleenp, kmo, jcoomes
| author | jwilhelm |
|---|---|
| date | Thu, 23 Jan 2014 14:47:23 +0100 |
| parents | 86e6d691f2e1 |
| children |
| rev | line source |
|---|---|
| 10405 | 1 /* |
| 2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTIMER_HPP | |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTIMER_HPP | |
| 27 | |
| 28 #include "memory/allocation.hpp" | |
| 29 #include "prims/jni_md.h" | |
| 30 #include "utilities/macros.hpp" | |
|
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31 #include "utilities/ticks.hpp" |
| 10405 | 32 |
| 33 class ConcurrentPhase; | |
| 34 class GCPhase; | |
| 35 class PausePhase; | |
| 36 | |
| 37 template <class E> class GrowableArray; | |
| 38 | |
| 39 class PhaseVisitor { | |
| 40 public: | |
| 41 virtual void visit(GCPhase* phase) = 0; | |
| 42 virtual void visit(PausePhase* phase) { visit((GCPhase*)phase); } | |
| 43 virtual void visit(ConcurrentPhase* phase) { visit((GCPhase*)phase); } | |
| 44 }; | |
| 45 | |
| 46 class GCPhase { | |
| 47 const char* _name; | |
| 48 int _level; | |
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49 Ticks _start; |
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50 Ticks _end; |
| 10405 | 51 |
| 52 public: | |
| 53 void set_name(const char* name) { _name = name; } | |
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54 const char* name() const { return _name; } |
| 10405 | 55 |
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56 int level() const { return _level; } |
| 10405 | 57 void set_level(int level) { _level = level; } |
| 58 | |
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59 const Ticks start() const { return _start; } |
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60 void set_start(const Ticks& time) { _start = time; } |
| 10405 | 61 |
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62 const Ticks end() const { return _end; } |
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63 void set_end(const Ticks& time) { _end = time; } |
| 10405 | 64 |
| 65 virtual void accept(PhaseVisitor* visitor) = 0; | |
| 66 }; | |
| 67 | |
| 68 class PausePhase : public GCPhase { | |
| 69 public: | |
| 70 void accept(PhaseVisitor* visitor) { | |
| 71 visitor->visit(this); | |
| 72 } | |
| 73 }; | |
| 74 | |
| 75 class ConcurrentPhase : public GCPhase { | |
| 76 void accept(PhaseVisitor* visitor) { | |
| 77 visitor->visit(this); | |
| 78 } | |
| 79 }; | |
| 80 | |
| 81 class PhasesStack { | |
| 82 public: | |
| 83 // FIXME: Temporary set to 5 (used to be 4), since Reference processing needs it. | |
| 84 static const int PHASE_LEVELS = 5; | |
| 85 | |
| 86 private: | |
| 87 int _phase_indices[PHASE_LEVELS]; | |
| 88 int _next_phase_level; | |
| 89 | |
| 90 public: | |
| 91 PhasesStack() { clear(); } | |
| 92 void clear(); | |
| 93 | |
| 94 void push(int phase_index); | |
| 95 int pop(); | |
| 96 int count() const; | |
| 97 }; | |
| 98 | |
| 99 class TimePartitions { | |
| 100 static const int INITIAL_CAPACITY = 10; | |
| 101 | |
| 102 // Currently we only support pause phases. | |
| 103 GrowableArray<PausePhase>* _phases; | |
| 104 PhasesStack _active_phases; | |
| 105 | |
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106 Tickspan _sum_of_pauses; |
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107 Tickspan _longest_pause; |
| 10405 | 108 |
| 109 public: | |
| 110 TimePartitions(); | |
| 111 ~TimePartitions(); | |
| 112 void clear(); | |
| 113 | |
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114 void report_gc_phase_start(const char* name, const Ticks& time); |
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115 void report_gc_phase_end(const Ticks& time); |
| 10405 | 116 |
| 117 int num_phases() const; | |
| 118 GCPhase* phase_at(int index) const; | |
| 119 | |
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120 const Tickspan sum_of_pauses() const { return _sum_of_pauses; } |
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121 const Tickspan longest_pause() const { return _longest_pause; } |
| 10405 | 122 |
| 123 bool has_active_phases(); | |
| 124 private: | |
| 125 void update_statistics(GCPhase* phase); | |
| 126 }; | |
| 127 | |
| 128 class PhasesIterator { | |
| 129 public: | |
| 130 virtual bool has_next() = 0; | |
| 131 virtual GCPhase* next() = 0; | |
| 132 }; | |
| 133 | |
| 134 class GCTimer : public ResourceObj { | |
| 135 NOT_PRODUCT(friend class GCTimerTest;) | |
| 136 protected: | |
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137 Ticks _gc_start; |
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138 Ticks _gc_end; |
| 10405 | 139 TimePartitions _time_partitions; |
| 140 | |
| 141 public: | |
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142 virtual void register_gc_start(const Ticks& time = Ticks::now()); |
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143 virtual void register_gc_end(const Ticks& time = Ticks::now()); |
| 10405 | 144 |
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145 void register_gc_phase_start(const char* name, const Ticks& time); |
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146 void register_gc_phase_end(const Ticks& time); |
| 10405 | 147 |
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148 const Ticks gc_start() const { return _gc_start; } |
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149 const Ticks gc_end() const { return _gc_end; } |
| 10405 | 150 |
| 151 TimePartitions* time_partitions() { return &_time_partitions; } | |
| 152 | |
| 153 protected: | |
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154 void register_gc_pause_start(const char* name, const Ticks& time = Ticks::now()); |
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155 void register_gc_pause_end(const Ticks& time = Ticks::now()); |
| 10405 | 156 }; |
| 157 | |
| 158 class STWGCTimer : public GCTimer { | |
| 159 public: | |
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160 virtual void register_gc_start(const Ticks& time = Ticks::now()); |
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161 virtual void register_gc_end(const Ticks& time = Ticks::now()); |
| 10405 | 162 }; |
| 163 | |
| 164 class ConcurrentGCTimer : public GCTimer { | |
| 165 public: | |
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166 void register_gc_pause_start(const char* name); |
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167 void register_gc_pause_end(); |
| 10405 | 168 }; |
| 169 | |
| 170 class TimePartitionPhasesIterator { | |
| 171 TimePartitions* _time_partitions; | |
| 172 int _next; | |
| 173 | |
| 174 public: | |
| 175 TimePartitionPhasesIterator(TimePartitions* time_partitions) : _time_partitions(time_partitions), _next(0) { } | |
| 176 | |
| 177 virtual bool has_next(); | |
| 178 virtual GCPhase* next(); | |
| 179 }; | |
| 180 | |
| 181 | |
| 182 /////////////// Unit tests /////////////// | |
| 183 | |
| 184 #ifndef PRODUCT | |
| 185 | |
| 186 class GCTimerAllTest { | |
| 187 public: | |
| 188 static void all(); | |
| 189 }; | |
| 190 | |
| 191 #endif | |
| 192 | |
| 193 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTIMER_HPP |