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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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