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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64_INSTRUMENT_ARM64_H_ | 5 #ifndef V8_ARM64_INSTRUMENT_ARM64_H_ |
6 #define V8_ARM64_INSTRUMENT_ARM64_H_ | 6 #define V8_ARM64_INSTRUMENT_ARM64_H_ |
7 | 7 |
8 #include "src/globals.h" | 8 #include "src/globals.h" |
9 #include "src/utils.h" | 9 #include "src/utils.h" |
10 | 10 |
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25 | 25 |
26 | 26 |
27 enum CounterType { | 27 enum CounterType { |
28 Gauge = 0, // Gauge counters reset themselves after reading. | 28 Gauge = 0, // Gauge counters reset themselves after reading. |
29 Cumulative = 1 // Cumulative counters keep their value after reading. | 29 Cumulative = 1 // Cumulative counters keep their value after reading. |
30 }; | 30 }; |
31 | 31 |
32 | 32 |
33 class Counter { | 33 class Counter { |
34 public: | 34 public: |
35 Counter(const char* name, CounterType type = Gauge); | 35 explicit Counter(const char* name, CounterType type = Gauge); |
36 | 36 |
37 void Increment(); | 37 void Increment(); |
38 void Enable(); | 38 void Enable(); |
39 void Disable(); | 39 void Disable(); |
40 bool IsEnabled(); | 40 bool IsEnabled(); |
41 uint64_t count(); | 41 uint64_t count(); |
42 const char* name(); | 42 const char* name(); |
43 CounterType type(); | 43 CounterType type(); |
44 | 44 |
45 private: | 45 private: |
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76 | 76 |
77 std::list<Counter*> counters_; | 77 std::list<Counter*> counters_; |
78 | 78 |
79 FILE *output_stream_; | 79 FILE *output_stream_; |
80 uint64_t sample_period_; | 80 uint64_t sample_period_; |
81 }; | 81 }; |
82 | 82 |
83 } } // namespace v8::internal | 83 } } // namespace v8::internal |
84 | 84 |
85 #endif // V8_ARM64_INSTRUMENT_ARM64_H_ | 85 #endif // V8_ARM64_INSTRUMENT_ARM64_H_ |
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