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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 CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_ | 5 #ifndef CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_ |
6 #define CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_ | 6 #define CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 | 9 |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
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33 bool IsRestartAllowed() const; | 33 bool IsRestartAllowed() const; |
34 bool IsOriginRegistered(KeepAliveOrigin origin) const; | 34 bool IsOriginRegistered(KeepAliveOrigin origin) const; |
35 | 35 |
36 void AddObserver(KeepAliveStateObserver* observer); | 36 void AddObserver(KeepAliveStateObserver* observer); |
37 void RemoveObserver(KeepAliveStateObserver* observer); | 37 void RemoveObserver(KeepAliveStateObserver* observer); |
38 | 38 |
39 private: | 39 private: |
40 friend struct base::DefaultSingletonTraits<KeepAliveRegistry>; | 40 friend struct base::DefaultSingletonTraits<KeepAliveRegistry>; |
41 // Friend to be able to use Register/Unregister | 41 // Friend to be able to use Register/Unregister |
42 friend class ScopedKeepAlive; | 42 friend class ScopedKeepAlive; |
43 #ifndef NDEBUG | 43 #if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
44 friend std::ostream& operator<<(std::ostream& out, | 44 friend std::ostream& operator<<(std::ostream& out, |
45 const KeepAliveRegistry& registry); | 45 const KeepAliveRegistry& registry); |
46 #endif // NDEBUG | 46 #endif |
47 | 47 |
48 KeepAliveRegistry(); | 48 KeepAliveRegistry(); |
49 ~KeepAliveRegistry(); | 49 ~KeepAliveRegistry(); |
50 | 50 |
51 // Add/Remove entries. Do not use directly, use ScopedKeepAlive instead. | 51 // Add/Remove entries. Do not use directly, use ScopedKeepAlive instead. |
52 void Register(KeepAliveOrigin origin, KeepAliveRestartOption restart); | 52 void Register(KeepAliveOrigin origin, KeepAliveRestartOption restart); |
53 void Unregister(KeepAliveOrigin origin, KeepAliveRestartOption restart); | 53 void Unregister(KeepAliveOrigin origin, KeepAliveRestartOption restart); |
54 | 54 |
55 // Methods called when a specific aspect of the state of the registry changes. | 55 // Methods called when a specific aspect of the state of the registry changes. |
56 void OnKeepAliveStateChanged(bool new_keeping_alive); | 56 void OnKeepAliveStateChanged(bool new_keeping_alive); |
57 void OnRestartAllowedChanged(bool new_restart_allowed); | 57 void OnRestartAllowedChanged(bool new_restart_allowed); |
58 | 58 |
59 // Tracks the registered KeepAlives, storing the origin and the number of | 59 // Tracks the registered KeepAlives, storing the origin and the number of |
60 // registered KeepAlives for each. | 60 // registered KeepAlives for each. |
61 std::map<KeepAliveOrigin, int> registered_keep_alives_; | 61 std::map<KeepAliveOrigin, int> registered_keep_alives_; |
62 | 62 |
63 // Total number of registered KeepAlives | 63 // Total number of registered KeepAlives |
64 int registered_count_; | 64 int registered_count_; |
65 | 65 |
66 // Number of registered keep alives that have KeepAliveRestartOption::ENABLED. | 66 // Number of registered keep alives that have KeepAliveRestartOption::ENABLED. |
67 int restart_allowed_count_; | 67 int restart_allowed_count_; |
68 | 68 |
69 base::ObserverList<KeepAliveStateObserver> observers_; | 69 base::ObserverList<KeepAliveStateObserver> observers_; |
70 | 70 |
71 DISALLOW_COPY_AND_ASSIGN(KeepAliveRegistry); | 71 DISALLOW_COPY_AND_ASSIGN(KeepAliveRegistry); |
72 }; | 72 }; |
73 | 73 |
74 #ifndef NDEBUG | 74 #if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
75 std::ostream& operator<<(std::ostream& out, const KeepAliveRegistry& registry); | 75 std::ostream& operator<<(std::ostream& out, const KeepAliveRegistry& registry); |
76 #endif // ndef NDEBUG | 76 #endif |
77 | 77 |
78 #endif // CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_ | 78 #endif // CHROME_BROWSER_LIFETIME_KEEP_ALIVE_REGISTRY_H_ |
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