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| 1 // Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, the Dartino 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.md file. | 3 // BSD-style license that can be found in the LICENSE.md file. |
| 4 | 4 |
| 5 #ifndef SRC_VM_TICK_QUEUE_H_ | 5 #ifndef SRC_VM_TICK_QUEUE_H_ |
| 6 #define SRC_VM_TICK_QUEUE_H_ | 6 #define SRC_VM_TICK_QUEUE_H_ |
| 7 | 7 |
| 8 #include "src/shared/atomic.h" | 8 #include "src/shared/atomic.h" |
| 9 #include "src/shared/globals.h" | 9 #include "src/shared/globals.h" |
| 10 #include "src/shared/platform.h" | 10 #include "src/shared/platform.h" |
| 11 | 11 |
| 12 namespace fletch { | 12 namespace dartino { |
| 13 | 13 |
| 14 class Process; | 14 class Process; |
| 15 | 15 |
| 16 // TickSample captures the information collected for each profiler tick. | 16 // TickSample captures the information collected for each profiler tick. |
| 17 class TickSample { | 17 class TickSample { |
| 18 public: | 18 public: |
| 19 int hashtag; // hashtag from the running snapshot. | 19 int hashtag; // hashtag from the running snapshot. |
| 20 int bcp; // bytecode pointer relative to heap start. | 20 int bcp; // bytecode pointer relative to heap start. |
| 21 word pc; | 21 word pc; |
| 22 word sp; | 22 word sp; |
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| 81 TickSample* next = entry + 1; | 81 TickSample* next = entry + 1; |
| 82 if (next == End()) return Begin(); | 82 if (next == End()) return Begin(); |
| 83 return next; | 83 return next; |
| 84 } | 84 } |
| 85 TickSample buffer_[kLength]; | 85 TickSample buffer_[kLength]; |
| 86 Atomic<TickSample*> add_pos_; // Only changed by producer. | 86 Atomic<TickSample*> add_pos_; // Only changed by producer. |
| 87 Atomic<TickSample*> remove_pos_; // Only changed by consumer. | 87 Atomic<TickSample*> remove_pos_; // Only changed by consumer. |
| 88 DISALLOW_COPY_AND_ASSIGN(TickQueue); | 88 DISALLOW_COPY_AND_ASSIGN(TickQueue); |
| 89 }; | 89 }; |
| 90 | 90 |
| 91 } // namespace fletch | 91 } // namespace dartino |
| 92 | 92 |
| 93 #endif // SRC_VM_TICK_QUEUE_H_ | 93 #endif // SRC_VM_TICK_QUEUE_H_ |
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