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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 CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_ | 5 #ifndef CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_ |
| 6 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_ | 6 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_ |
| 7 | 7 |
| 8 #include "base/callback.h" | 8 #include "base/callback.h" |
| 9 #include "base/memory/singleton.h" | 9 #include "base/memory/singleton.h" |
| 10 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
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| 44 std::unique_ptr<MemoryMonitor> monitor); | 44 std::unique_ptr<MemoryMonitor> monitor); |
| 45 ~MemoryCoordinatorImpl() override; | 45 ~MemoryCoordinatorImpl() override; |
| 46 | 46 |
| 47 // MemoryCoordinator implementations: | 47 // MemoryCoordinator implementations: |
| 48 void Start() override; | 48 void Start() override; |
| 49 void OnChildAdded(int render_process_id) override; | 49 void OnChildAdded(int render_process_id) override; |
| 50 | 50 |
| 51 MemoryMonitor* memory_monitor() { return memory_monitor_.get(); } | 51 MemoryMonitor* memory_monitor() { return memory_monitor_.get(); } |
| 52 | 52 |
| 53 base::MemoryState GetCurrentMemoryState() const override; | 53 base::MemoryState GetCurrentMemoryState() const override; |
| 54 void SetCurrentMemoryStateForTesting(base::MemoryState memory_state) override; |
| 54 | 55 |
| 55 // NotificationObserver implementation: | 56 // NotificationObserver implementation: |
| 56 void Observe(int type, | 57 void Observe(int type, |
| 57 const NotificationSource& source, | 58 const NotificationSource& source, |
| 58 const NotificationDetails& details) override; | 59 const NotificationDetails& details) override; |
| 59 | 60 |
| 60 private: | 61 private: |
| 61 FRIEND_TEST_ALL_PREFIXES(MemoryCoordinatorImplTest, CalculateNextState); | 62 FRIEND_TEST_ALL_PREFIXES(MemoryCoordinatorImplTest, CalculateNextState); |
| 62 FRIEND_TEST_ALL_PREFIXES(MemoryCoordinatorImplTest, UpdateState); | 63 FRIEND_TEST_ALL_PREFIXES(MemoryCoordinatorImplTest, UpdateState); |
| 64 FRIEND_TEST_ALL_PREFIXES(MemoryCoordinatorImplTest, SetMemoryStateForTesting); |
| 63 | 65 |
| 64 friend struct MemoryCoordinatorSingletonTraits; | 66 friend struct MemoryCoordinatorSingletonTraits; |
| 65 | 67 |
| 66 using MemoryState = base::MemoryState; | 68 using MemoryState = base::MemoryState; |
| 67 | 69 |
| 68 // Calculates the next global state from the amount of free memory using | 70 // Calculates the next global state from the amount of free memory using |
| 69 // a heuristic. | 71 // a heuristic. |
| 70 MemoryState CalculateNextState(); | 72 MemoryState CalculateNextState(); |
| 71 | 73 |
| 72 // Updates the global state and notifies state changes to clients (lives in | 74 // Updates the global state and notifies state changes to clients (lives in |
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| 121 base::TimeDelta monitoring_interval_; | 123 base::TimeDelta monitoring_interval_; |
| 122 | 124 |
| 123 base::WeakPtrFactory<MemoryCoordinatorImpl> weak_ptr_factory_; | 125 base::WeakPtrFactory<MemoryCoordinatorImpl> weak_ptr_factory_; |
| 124 | 126 |
| 125 DISALLOW_COPY_AND_ASSIGN(MemoryCoordinatorImpl); | 127 DISALLOW_COPY_AND_ASSIGN(MemoryCoordinatorImpl); |
| 126 }; | 128 }; |
| 127 | 129 |
| 128 } // namespace content | 130 } // namespace content |
| 129 | 131 |
| 130 #endif // CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_ | 132 #endif // CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_IMPL_H_ |
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