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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 //------------------------------------------------------------------------------ | 5 //------------------------------------------------------------------------------ |
| 6 // Tracked is the base class for all tracked objects. During construction, it | 6 // Tracked is the base class for all tracked objects. During construction, it |
| 7 // registers the fact that an instance was created, and at destruction time, it | 7 // registers the fact that an instance was created, and at destruction time, it |
| 8 // records that event. The instance may be tagged with a name, which is refered | 8 // records that event. The instance may be tagged with a name, which is refered |
| 9 // to as its Location. The Location is a file and line number, most | 9 // to as its Location. The Location is a file and line number, most |
| 10 // typically indicated where the object was constructed. In some cases, as the | 10 // typically indicated where the object was constructed. In some cases, as the |
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| 105 | 105 |
| 106 // Used to record the FROM_HERE location of a caller. | 106 // Used to record the FROM_HERE location of a caller. |
| 107 void SetBirthPlace(const Location& from_here); | 107 void SetBirthPlace(const Location& from_here); |
| 108 const Location GetBirthPlace() const; | 108 const Location GetBirthPlace() const; |
| 109 | 109 |
| 110 // When a task sits around a long time, such as in a timer, or object watcher, | 110 // When a task sits around a long time, such as in a timer, or object watcher, |
| 111 // this method should be called when the task becomes active, and its | 111 // this method should be called when the task becomes active, and its |
| 112 // significant lifetime begins (and its waiting to be woken up has passed). | 112 // significant lifetime begins (and its waiting to be woken up has passed). |
| 113 void ResetBirthTime(); | 113 void ResetBirthTime(); |
| 114 | 114 |
| 115 bool MissingBirthplace() const; | 115 bool MissingBirthPlace() const; |
| 116 | 116 |
| 117 #if defined(TRACK_ALL_TASK_OBJECTS) | 117 #if defined(TRACK_ALL_TASK_OBJECTS) |
| 118 base::TimeTicks tracked_birth_time() const { return tracked_birth_time_; } | 118 base::TimeTicks tracked_birth_time() const { return tracked_birth_time_; } |
| 119 #else | 119 #else |
| 120 base::TimeTicks tracked_birth_time() const { return base::TimeTicks::Now(); } | 120 base::TimeTicks tracked_birth_time() const { return base::TimeTicks::Now(); } |
| 121 #endif // defined(TRACK_ALL_TASK_OBJECTS) | 121 #endif // defined(TRACK_ALL_TASK_OBJECTS) |
| 122 | 122 |
| 123 // Returns null if SetBirthPlace has not been called. | 123 // Returns null if SetBirthPlace has not been called. |
| 124 const void* get_birth_program_counter() const { | 124 const void* get_birth_program_counter() const { |
| 125 return birth_program_counter_; | 125 return birth_program_counter_; |
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| 139 #endif // defined(TRACK_ALL_TASK_OBJECTS) | 139 #endif // defined(TRACK_ALL_TASK_OBJECTS) |
| 140 | 140 |
| 141 const void* birth_program_counter_; | 141 const void* birth_program_counter_; |
| 142 | 142 |
| 143 DISALLOW_COPY_AND_ASSIGN(Tracked); | 143 DISALLOW_COPY_AND_ASSIGN(Tracked); |
| 144 }; | 144 }; |
| 145 | 145 |
| 146 } // namespace tracked_objects | 146 } // namespace tracked_objects |
| 147 | 147 |
| 148 #endif // BASE_TRACKED_H_ | 148 #endif // BASE_TRACKED_H_ |
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