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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium 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 CC_RASTER_TASK_H_ | 5 #ifndef CC_RASTER_TASK_H_ |
6 #define CC_RASTER_TASK_H_ | 6 #define CC_RASTER_TASK_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
| 10 #include <string> |
10 #include <vector> | 11 #include <vector> |
11 | 12 |
12 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
13 #include "cc/base/cc_export.h" | 14 #include "cc/base/cc_export.h" |
14 | 15 |
15 namespace cc { | 16 namespace cc { |
16 class Task; | 17 class Task; |
17 | 18 |
18 // This class provides states to manage life cycle of a task and given below is | 19 // This class provides states to manage life cycle of a task and given below is |
19 // how it is used by TaskGraphWorkQueue to process life cycle of a task. | 20 // how it is used by TaskGraphWorkQueue to process life cycle of a task. |
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31 // ┌───────────┐ ╔══════════╗ | 32 // ┌───────────┐ ╔══════════╗ |
32 // │ SCHEDULED │------> ║ CANCELED ║ | 33 // │ SCHEDULED │------> ║ CANCELED ║ |
33 // └───────────┘ ╚══════════╝ | 34 // └───────────┘ ╚══════════╝ |
34 // | | 35 // | |
35 // v | 36 // v |
36 // ┌─────────┐ ╔══════════╗ | 37 // ┌─────────┐ ╔══════════╗ |
37 // │ RUNNING │-------> ║ FINISHED ║ | 38 // │ RUNNING │-------> ║ FINISHED ║ |
38 // └─────────┘ ╚══════════╝ | 39 // └─────────┘ ╚══════════╝ |
39 class CC_EXPORT TaskState { | 40 class CC_EXPORT TaskState { |
40 public: | 41 public: |
| 42 bool IsNew() const; |
41 bool IsScheduled() const; | 43 bool IsScheduled() const; |
42 bool IsRunning() const; | 44 bool IsRunning() const; |
43 bool IsFinished() const; | 45 bool IsFinished() const; |
44 bool IsCanceled() const; | 46 bool IsCanceled() const; |
45 | 47 |
46 // Functions to change the state of task. These functions should be called | 48 // Functions to change the state of task. These functions should be called |
47 // only from TaskGraphWorkQueue where the life cycle of a task is decided or | 49 // only from TaskGraphWorkQueue where the life cycle of a task is decided or |
48 // from tests. These functions are not thread-safe. Caller is responsible for | 50 // from tests. These functions are not thread-safe. Caller is responsible for |
49 // thread safety. | 51 // thread safety. |
50 void Reset(); // Sets state to NEW. | 52 void Reset(); // Sets state to NEW. |
51 void DidSchedule(); | 53 void DidSchedule(); |
52 void DidStart(); | 54 void DidStart(); |
53 void DidFinish(); | 55 void DidFinish(); |
54 void DidCancel(); | 56 void DidCancel(); |
55 | 57 |
| 58 std::string ToString() const; |
| 59 |
56 private: | 60 private: |
57 friend class Task; | 61 friend class Task; |
58 | 62 |
59 // Let only Task class create the TaskState. | 63 // Let only Task class create the TaskState. |
60 TaskState(); | 64 TaskState(); |
61 ~TaskState(); | 65 ~TaskState(); |
62 | 66 |
63 enum class Value : uint16_t { NEW, SCHEDULED, RUNNING, FINISHED, CANCELED }; | 67 enum class Value : uint16_t { NEW, SCHEDULED, RUNNING, FINISHED, CANCELED }; |
64 | 68 |
65 Value value_; | 69 Value value_; |
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139 Node::Vector nodes; | 143 Node::Vector nodes; |
140 Edge::Vector edges; | 144 Edge::Vector edges; |
141 | 145 |
142 private: | 146 private: |
143 DISALLOW_COPY_AND_ASSIGN(TaskGraph); | 147 DISALLOW_COPY_AND_ASSIGN(TaskGraph); |
144 }; | 148 }; |
145 | 149 |
146 } // namespace cc | 150 } // namespace cc |
147 | 151 |
148 #endif // CC_RASTER_TASK_H_ | 152 #endif // CC_RASTER_TASK_H_ |
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