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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_TIMER_H_ | 5 #ifndef VM_TIMER_H_ |
6 #define VM_TIMER_H_ | 6 #define VM_TIMER_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/flags.h" | 9 #include "vm/flags.h" |
10 #include "vm/os.h" | 10 #include "vm/os.h" |
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102 void PrintTimersToJSONProperty(JSONObject* jsobj); | 102 void PrintTimersToJSONProperty(JSONObject* jsobj); |
103 | 103 |
104 private: | 104 private: |
105 #define TIMER_FIELD(name, msg) Timer name##_; | 105 #define TIMER_FIELD(name, msg) Timer name##_; |
106 TIMER_LIST(TIMER_FIELD) | 106 TIMER_LIST(TIMER_FIELD) |
107 #undef TIMER_FIELD | 107 #undef TIMER_FIELD |
108 bool padding_; | 108 bool padding_; |
109 DISALLOW_COPY_AND_ASSIGN(TimerList); | 109 DISALLOW_COPY_AND_ASSIGN(TimerList); |
110 }; | 110 }; |
111 | 111 |
112 // Timer Usage. | |
113 #define START_TIMER(name) \ | |
114 Isolate::Current()->timer_list().name().Start(); | |
115 | |
116 #define STOP_TIMER(name) \ | |
117 Isolate::Current()->timer_list().name().Stop(); | |
118 | |
119 // The class TimerScope is used to start and stop a timer within a scope. | 112 // The class TimerScope is used to start and stop a timer within a scope. |
120 // It is used as follows: | 113 // It is used as follows: |
121 // { | 114 // { |
122 // TIMERSCOPE(name_of_timer); | 115 // TimerScope timer(FLAG_name_of_flag, timer, isolate); |
123 // .... | |
124 // ..... | 116 // ..... |
125 // code that needs to be timed. | 117 // code that needs to be timed. |
126 // .... | 118 // .... |
127 // } | 119 // } |
128 class TimerScope : public StackResource { | 120 class TimerScope : public StackResource { |
129 public: | 121 public: |
130 TimerScope(bool flag, Timer* timer, BaseIsolate* isolate = NULL) | 122 TimerScope(bool flag, Timer* timer, BaseIsolate* isolate = NULL) |
131 : StackResource(isolate), flag_(flag), nested_(false), timer_(timer) { | 123 : StackResource(isolate), flag_(flag), nested_(false), timer_(timer) { |
132 if (flag_) { | 124 if (flag_) { |
133 if (!timer_->running()) { | 125 if (!timer_->running()) { |
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145 } | 137 } |
146 } | 138 } |
147 | 139 |
148 private: | 140 private: |
149 bool flag_; | 141 bool flag_; |
150 bool nested_; | 142 bool nested_; |
151 Timer* timer_; | 143 Timer* timer_; |
152 DISALLOW_COPY_AND_ASSIGN(TimerScope); | 144 DISALLOW_COPY_AND_ASSIGN(TimerScope); |
153 }; | 145 }; |
154 | 146 |
155 #define TIMERSCOPE(name) \ | 147 |
156 TimerScope vm_internal_timer_(true, \ | 148 class PauseTimerScope : public StackResource { |
157 &(Isolate::Current()->timer_list().name())) | 149 public: |
150 PauseTimerScope(bool flag, Timer* timer, BaseIsolate* isolate = NULL) | |
151 : StackResource(isolate), flag_(flag), nested_(false), timer_(timer) { | |
srdjan
2014/03/13 20:03:09
indent
Ivan Posva
2014/03/13 20:36:18
Done.
| |
152 if (flag_) { | |
153 if (timer_->running()) { | |
154 timer_->Stop(); | |
155 } else { | |
156 nested_ = true; | |
157 } | |
158 } | |
159 } | |
160 ~PauseTimerScope() { | |
161 if (flag_) { | |
162 if (!nested_) { | |
163 timer_->Start(); | |
164 } | |
165 } | |
166 } | |
167 | |
168 private: | |
169 bool flag_; | |
srdjan
2014/03/13 20:03:09
const
Ivan Posva
2014/03/13 20:36:18
Done.
| |
170 bool nested_; | |
171 Timer* timer_; | |
172 DISALLOW_COPY_AND_ASSIGN(PauseTimerScope); | |
173 }; | |
174 | |
175 | |
176 // Macros to deal with named timers in the isolate. | |
177 #define START_TIMER(isolate, name) \ | |
178 isolate->timer_list().name().Start(); | |
179 | |
180 #define STOP_TIMER(isolate, name) \ | |
181 isolate->timer_list().name().Stop(); | |
182 | |
183 #define TIMERSCOPE(isolate, name) \ | |
184 TimerScope vm_internal_timer_(true, &(isolate->timer_list().name()), isolate) | |
185 | |
186 #define PAUSETIMERSCOPE(isolate, name) \ | |
187 PauseTimerScope vm_internal_timer_(true, \ | |
188 &(isolate->timer_list().name()), \ | |
189 isolate) | |
158 | 190 |
159 } // namespace dart | 191 } // namespace dart |
160 | 192 |
161 #endif // VM_TIMER_H_ | 193 #endif // VM_TIMER_H_ |
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