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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 CHROME_BROWSER_MEMORY_TAB_MANAGER_DELEGATE_CHROMEOS_H_ | 5 #ifndef CHROME_BROWSER_MEMORY_TAB_MANAGER_DELEGATE_CHROMEOS_H_ |
6 #define CHROME_BROWSER_MEMORY_TAB_MANAGER_DELEGATE_CHROMEOS_H_ | 6 #define CHROME_BROWSER_MEMORY_TAB_MANAGER_DELEGATE_CHROMEOS_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <utility> | 9 #include <utility> |
10 #include <vector> | 10 #include <vector> |
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40 FOCUSED_TAB = FOCUSED_APP, | 40 FOCUSED_TAB = FOCUSED_APP, |
41 | 41 |
42 VISIBLE_APP = 2, | 42 VISIBLE_APP = 2, |
43 BACKGROUND_TAB = 3, | 43 BACKGROUND_TAB = 3, |
44 BACKGROUND_APP = 4, | 44 BACKGROUND_APP = 4, |
45 UNKNOWN_TYPE = 5, | 45 UNKNOWN_TYPE = 5, |
46 }; | 46 }; |
47 | 47 |
48 // The Chrome OS TabManagerDelegate is responsible for keeping the | 48 // The Chrome OS TabManagerDelegate is responsible for keeping the |
49 // renderers' scores up to date in /proc/<pid>/oom_score_adj. | 49 // renderers' scores up to date in /proc/<pid>/oom_score_adj. |
50 class TabManagerDelegate | 50 class TabManagerDelegate : public aura::client::ActivationChangeObserver, |
51 : public arc::InstanceHolder<arc::mojom::ProcessInstance>::Observer, | 51 public content::NotificationObserver, |
52 public aura::client::ActivationChangeObserver, | 52 public chrome::BrowserListObserver { |
53 public content::NotificationObserver, | |
54 public chrome::BrowserListObserver { | |
55 public: | 53 public: |
56 class MemoryStat; | 54 class MemoryStat; |
57 | 55 |
58 explicit TabManagerDelegate(const base::WeakPtr<TabManager>& tab_manager); | 56 explicit TabManagerDelegate(const base::WeakPtr<TabManager>& tab_manager); |
59 | 57 |
60 TabManagerDelegate(const base::WeakPtr<TabManager>& tab_manager, | 58 TabManagerDelegate(const base::WeakPtr<TabManager>& tab_manager, |
61 TabManagerDelegate::MemoryStat* mem_stat); | 59 TabManagerDelegate::MemoryStat* mem_stat); |
62 | 60 |
63 ~TabManagerDelegate() override; | 61 ~TabManagerDelegate() override; |
64 | 62 |
65 void OnBrowserSetLastActive(Browser* browser) override; | 63 void OnBrowserSetLastActive(Browser* browser) override; |
66 | 64 |
67 // InstanceHolder<arc::mojom::ProcessInstance>::Observer overrides. | |
68 void OnInstanceReady() override; | |
69 void OnInstanceClosed() override; | |
70 | |
71 // aura::ActivationChangeObserver overrides. | 65 // aura::ActivationChangeObserver overrides. |
72 void OnWindowActivated( | 66 void OnWindowActivated( |
73 aura::client::ActivationChangeObserver::ActivationReason reason, | 67 aura::client::ActivationChangeObserver::ActivationReason reason, |
74 aura::Window* gained_active, | 68 aura::Window* gained_active, |
75 aura::Window* lost_active) override; | 69 aura::Window* lost_active) override; |
76 | 70 |
77 // Kills a process on memory pressure. | 71 // Kills a process on memory pressure. |
78 void LowMemoryKill(const TabStatsList& tab_stats); | 72 void LowMemoryKill(const TabStatsList& tab_stats); |
79 | 73 |
80 // Returns oom_score_adj of a process if the score is cached by |this|. | 74 // Returns oom_score_adj of a process if the score is cached by |this|. |
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169 // Holds the info of the newly focused tab or app. Its OOM score would be | 163 // Holds the info of the newly focused tab or app. Its OOM score would be |
170 // adjusted when |focus_process_score_adjust_timer_| is expired. | 164 // adjusted when |focus_process_score_adjust_timer_| is expired. |
171 std::unique_ptr<FocusedProcess> focused_process_; | 165 std::unique_ptr<FocusedProcess> focused_process_; |
172 | 166 |
173 // Map maintaining the process handle - oom_score mapping. | 167 // Map maintaining the process handle - oom_score mapping. |
174 ProcessScoreMap oom_score_map_; | 168 ProcessScoreMap oom_score_map_; |
175 | 169 |
176 // Util for getting system memory status. | 170 // Util for getting system memory status. |
177 std::unique_ptr<TabManagerDelegate::MemoryStat> mem_stat_; | 171 std::unique_ptr<TabManagerDelegate::MemoryStat> mem_stat_; |
178 | 172 |
179 // Holds a weak pointer to arc::mojom::ProcessInstance. | |
180 arc::mojom::ProcessInstance* arc_process_instance_; | |
181 // Current ProcessInstance version. | |
182 int arc_process_instance_version_; | |
183 | |
184 // Reports UMA histograms. | 173 // Reports UMA histograms. |
185 std::unique_ptr<UmaReporter> uma_; | 174 std::unique_ptr<UmaReporter> uma_; |
186 | 175 |
187 // Weak pointer factory used for posting tasks to other threads. | 176 // Weak pointer factory used for posting tasks to other threads. |
188 base::WeakPtrFactory<TabManagerDelegate> weak_ptr_factory_; | 177 base::WeakPtrFactory<TabManagerDelegate> weak_ptr_factory_; |
189 | 178 |
190 DISALLOW_COPY_AND_ASSIGN(TabManagerDelegate); | 179 DISALLOW_COPY_AND_ASSIGN(TabManagerDelegate); |
191 }; | 180 }; |
192 | 181 |
193 // On ARC enabled machines, either a tab or an app could be a possible | 182 // On ARC enabled machines, either a tab or an app could be a possible |
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245 // reported if available memory is under the number. | 234 // reported if available memory is under the number. |
246 static int LowMemoryMarginKB(); | 235 static int LowMemoryMarginKB(); |
247 | 236 |
248 // Reads in an integer. | 237 // Reads in an integer. |
249 static int ReadIntFromFile(const char* file_name, int default_val); | 238 static int ReadIntFromFile(const char* file_name, int default_val); |
250 }; | 239 }; |
251 | 240 |
252 } // namespace memory | 241 } // namespace memory |
253 | 242 |
254 #endif // CHROME_BROWSER_MEMORY_TAB_MANAGER_DELEGATE_CHROMEOS_H_ | 243 #endif // CHROME_BROWSER_MEMORY_TAB_MANAGER_DELEGATE_CHROMEOS_H_ |
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