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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COUNTERS_H_ | 5 #ifndef V8_COUNTERS_H_ |
6 #define V8_COUNTERS_H_ | 6 #define V8_COUNTERS_H_ |
7 | 7 |
8 #include "include/v8.h" | 8 #include "include/v8.h" |
9 #include "src/allocation.h" | 9 #include "src/allocation.h" |
10 #include "src/base/platform/elapsed-timer.h" | 10 #include "src/base/platform/elapsed-timer.h" |
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191 // Returns true if this histogram is enabled. | 191 // Returns true if this histogram is enabled. |
192 bool Enabled() { | 192 bool Enabled() { |
193 return GetHistogram() != NULL; | 193 return GetHistogram() != NULL; |
194 } | 194 } |
195 | 195 |
196 // Reset the cached internal pointer. | 196 // Reset the cached internal pointer. |
197 void Reset() { | 197 void Reset() { |
198 lookup_done_ = false; | 198 lookup_done_ = false; |
199 } | 199 } |
200 | 200 |
| 201 const char* name() { return name_; } |
| 202 |
201 protected: | 203 protected: |
202 // Returns the handle to the histogram. | 204 // Returns the handle to the histogram. |
203 void* GetHistogram() { | 205 void* GetHistogram() { |
204 if (!lookup_done_) { | 206 if (!lookup_done_) { |
205 lookup_done_ = true; | 207 lookup_done_ = true; |
206 histogram_ = CreateHistogram(); | 208 histogram_ = CreateHistogram(); |
207 } | 209 } |
208 return histogram_; | 210 return histogram_; |
209 } | 211 } |
210 | 212 |
211 const char* name() { return name_; } | |
212 Isolate* isolate() const { return isolate_; } | 213 Isolate* isolate() const { return isolate_; } |
213 | 214 |
214 private: | 215 private: |
215 void* CreateHistogram() const; | 216 void* CreateHistogram() const; |
216 | 217 |
217 const char* name_; | 218 const char* name_; |
218 int min_; | 219 int min_; |
219 int max_; | 220 int max_; |
220 int num_buckets_; | 221 int num_buckets_; |
221 void* histogram_; | 222 void* histogram_; |
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916 | 917 |
917 explicit Counters(Isolate* isolate); | 918 explicit Counters(Isolate* isolate); |
918 | 919 |
919 DISALLOW_IMPLICIT_CONSTRUCTORS(Counters); | 920 DISALLOW_IMPLICIT_CONSTRUCTORS(Counters); |
920 }; | 921 }; |
921 | 922 |
922 } // namespace internal | 923 } // namespace internal |
923 } // namespace v8 | 924 } // namespace v8 |
924 | 925 |
925 #endif // V8_COUNTERS_H_ | 926 #endif // V8_COUNTERS_H_ |
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