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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_CHROMEOS_MEMORY_OOM_PRIORITY_MANAGER_H_ | 5 #ifndef CHROME_BROWSER_MEMORY_OOM_PRIORITY_MANAGER_H_ |
6 #define CHROME_BROWSER_CHROMEOS_MEMORY_OOM_PRIORITY_MANAGER_H_ | 6 #define CHROME_BROWSER_MEMORY_OOM_PRIORITY_MANAGER_H_ |
7 | 7 |
8 #include <utility> | 8 #include <utility> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/containers/hash_tables.h" | 12 #include "base/containers/hash_tables.h" |
13 #include "base/gtest_prod_util.h" | 13 #include "base/gtest_prod_util.h" |
14 #include "base/memory/memory_pressure_listener.h" | 14 #include "base/memory/memory_pressure_listener.h" |
15 #include "base/memory/scoped_ptr.h" | 15 #include "base/memory/scoped_ptr.h" |
16 #include "base/process/process.h" | 16 #include "base/process/process.h" |
17 #include "base/strings/string16.h" | 17 #include "base/strings/string16.h" |
18 #include "base/synchronization/lock.h" | 18 #include "base/synchronization/lock.h" |
19 #include "base/time/time.h" | 19 #include "base/time/time.h" |
20 #include "base/timer/timer.h" | 20 #include "base/timer/timer.h" |
21 #include "content/public/browser/notification_observer.h" | 21 #include "content/public/browser/notification_observer.h" |
22 #include "content/public/browser/notification_registrar.h" | 22 #include "content/public/browser/notification_registrar.h" |
23 | 23 |
24 class GURL; | 24 class GURL; |
25 | 25 |
26 namespace chromeos { | 26 namespace memory { |
27 | 27 |
28 class LowMemoryObserver; | 28 class LowMemoryObserver; |
29 | 29 |
30 // The OomPriorityManager periodically checks (see | 30 // The OomPriorityManager periodically checks (see |
31 // ADJUSTMENT_INTERVAL_SECONDS in the source) the status of renderers | 31 // ADJUSTMENT_INTERVAL_SECONDS in the source) the status of renderers |
32 // and adjusts the out of memory (OOM) adjustment value (in | 32 // and adjusts the out of memory (OOM) adjustment value (in |
33 // /proc/<pid>/oom_score_adj) of the renderers so that they match the | 33 // /proc/<pid>/oom_score_adj) of the renderers so that they match the |
34 // algorithm embedded here for priority in being killed upon OOM | 34 // algorithm embedded here for priority in being killed upon OOM |
35 // conditions. | 35 // conditions. |
36 // | 36 // |
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68 void LogMemory(const std::string& title, const base::Closure& callback); | 68 void LogMemory(const std::string& title, const base::Closure& callback); |
69 | 69 |
70 private: | 70 private: |
71 FRIEND_TEST_ALL_PREFIXES(OomPriorityManagerTest, Comparator); | 71 FRIEND_TEST_ALL_PREFIXES(OomPriorityManagerTest, Comparator); |
72 FRIEND_TEST_ALL_PREFIXES(OomPriorityManagerTest, IsReloadableUI); | 72 FRIEND_TEST_ALL_PREFIXES(OomPriorityManagerTest, IsReloadableUI); |
73 FRIEND_TEST_ALL_PREFIXES(OomPriorityManagerTest, GetProcessHandles); | 73 FRIEND_TEST_ALL_PREFIXES(OomPriorityManagerTest, GetProcessHandles); |
74 | 74 |
75 struct TabStats { | 75 struct TabStats { |
76 TabStats(); | 76 TabStats(); |
77 ~TabStats(); | 77 ~TabStats(); |
78 bool is_app; // browser window is an app | 78 bool is_app; // browser window is an app |
79 bool is_reloadable_ui; // Reloadable web UI page, like NTP or Settings. | 79 bool is_reloadable_ui; // Reloadable web UI page, like NTP or Settings. |
80 bool is_playing_audio; | 80 bool is_playing_audio; |
81 bool is_pinned; | 81 bool is_pinned; |
82 bool is_selected; // selected in the currently active browser window | 82 bool is_selected; // selected in the currently active browser window |
83 bool is_discarded; | 83 bool is_discarded; |
84 base::TimeTicks last_active; | 84 base::TimeTicks last_active; |
85 base::ProcessHandle renderer_handle; | 85 base::ProcessHandle renderer_handle; |
86 int child_process_host_id; | 86 int child_process_host_id; |
87 base::string16 title; | 87 base::string16 title; |
88 int64 tab_contents_id; // unique ID per WebContents | 88 int64 tab_contents_id; // unique ID per WebContents |
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185 // Number of times we have discarded a tab, for statistics. | 185 // Number of times we have discarded a tab, for statistics. |
186 int discard_count_; | 186 int discard_count_; |
187 | 187 |
188 // Whether a tab discard event has occurred during the last time interval, | 188 // Whether a tab discard event has occurred during the last time interval, |
189 // used for statistics normalized by usage. | 189 // used for statistics normalized by usage. |
190 bool recent_tab_discard_; | 190 bool recent_tab_discard_; |
191 | 191 |
192 DISALLOW_COPY_AND_ASSIGN(OomPriorityManager); | 192 DISALLOW_COPY_AND_ASSIGN(OomPriorityManager); |
193 }; | 193 }; |
194 | 194 |
195 } // namespace chromeos | 195 } // namespace memory |
196 | 196 |
197 #endif // CHROME_BROWSER_CHROMEOS_MEMORY_OOM_PRIORITY_MANAGER_H_ | 197 #endif // CHROME_BROWSER_MEMORY_OOM_PRIORITY_MANAGER_H_ |
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