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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 WEBKIT_BROWSER_QUOTA_STORAGE_MONITOR_H_ | 5 #ifndef WEBKIT_BROWSER_QUOTA_STORAGE_MONITOR_H_ |
| 6 #define WEBKIT_BROWSER_QUOTA_STORAGE_MONITOR_H_ | 6 #define WEBKIT_BROWSER_QUOTA_STORAGE_MONITOR_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 | 9 |
| 10 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
| 11 #include "base/time/time.h" | 11 #include "base/time/time.h" |
| 12 #include "base/timer/timer.h" | 12 #include "base/timer/timer.h" |
| 13 #include "webkit/browser/quota/storage_observer.h" | 13 #include "webkit/browser/quota/storage_observer.h" |
| 14 | 14 |
| 15 namespace content { | 15 namespace content { |
| 16 class StorageMonitorTestBase; | 16 class StorageMonitorTestBase; |
| 17 } | 17 } |
| 18 | 18 |
| 19 namespace storage { | 19 namespace storage { |
| 20 | 20 |
| 21 class QuotaManager; | 21 class QuotaManager; |
| 22 | 22 |
| 23 // This class dispatches storage events to observers of a common | 23 // This class dispatches storage events to observers of a common |
| 24 // StorageObserver::Filter. | 24 // StorageObserver::Filter. |
| 25 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE StorageObserverList { | 25 class STORAGE_EXPORT_PRIVATE StorageObserverList { |
| 26 public: | 26 public: |
| 27 StorageObserverList(); | 27 StorageObserverList(); |
| 28 virtual ~StorageObserverList(); | 28 virtual ~StorageObserverList(); |
| 29 | 29 |
| 30 // Adds/removes an observer. | 30 // Adds/removes an observer. |
| 31 void AddObserver(StorageObserver* observer, | 31 void AddObserver(StorageObserver* observer, |
| 32 const StorageObserver::MonitorParams& params); | 32 const StorageObserver::MonitorParams& params); |
| 33 void RemoveObserver(StorageObserver* observer); | 33 void RemoveObserver(StorageObserver* observer); |
| 34 | 34 |
| 35 // Returns the number of observers. | 35 // Returns the number of observers. |
| 36 int ObserverCount() const; | 36 int ObserverCount() const; |
| 37 | 37 |
| 38 // Forwards a storage change to observers. The event may be dispatched | 38 // Forwards a storage change to observers. The event may be dispatched |
| 39 // immediately to an observer or after a delay, depending on the desired event | 39 // immediately to an observer or after a delay, depending on the desired event |
| 40 // rate of the observer. | 40 // rate of the observer. |
| 41 void OnStorageChange(const StorageObserver::Event& event); | 41 void OnStorageChange(const StorageObserver::Event& event); |
| 42 | 42 |
| 43 // Dispatch an event to observers that require it. | 43 // Dispatch an event to observers that require it. |
| 44 void MaybeDispatchEvent(const StorageObserver::Event& event); | 44 void MaybeDispatchEvent(const StorageObserver::Event& event); |
| 45 | 45 |
| 46 // Ensure the specified observer receives the next dispatched event. | 46 // Ensure the specified observer receives the next dispatched event. |
| 47 void ScheduleUpdateForObserver(StorageObserver* observer); | 47 void ScheduleUpdateForObserver(StorageObserver* observer); |
| 48 | 48 |
| 49 private: | 49 private: |
| 50 struct WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE ObserverState { | 50 struct STORAGE_EXPORT_PRIVATE ObserverState { |
| 51 GURL origin; | 51 GURL origin; |
| 52 base::TimeTicks last_notification_time; | 52 base::TimeTicks last_notification_time; |
| 53 base::TimeDelta rate; | 53 base::TimeDelta rate; |
| 54 bool requires_update; | 54 bool requires_update; |
| 55 | 55 |
| 56 ObserverState(); | 56 ObserverState(); |
| 57 }; | 57 }; |
| 58 typedef std::map<StorageObserver*, ObserverState> StorageObserverStateMap; | 58 typedef std::map<StorageObserver*, ObserverState> StorageObserverStateMap; |
| 59 | 59 |
| 60 void DispatchPendingEvent(); | 60 void DispatchPendingEvent(); |
| 61 | 61 |
| 62 StorageObserverStateMap observers_; | 62 StorageObserverStateMap observers_; |
| 63 base::OneShotTimer<StorageObserverList> notification_timer_; | 63 base::OneShotTimer<StorageObserverList> notification_timer_; |
| 64 StorageObserver::Event pending_event_; | 64 StorageObserver::Event pending_event_; |
| 65 | 65 |
| 66 friend class content::StorageMonitorTestBase; | 66 friend class content::StorageMonitorTestBase; |
| 67 | 67 |
| 68 DISALLOW_COPY_AND_ASSIGN(StorageObserverList); | 68 DISALLOW_COPY_AND_ASSIGN(StorageObserverList); |
| 69 }; | 69 }; |
| 70 | 70 |
| 71 | 71 |
| 72 // Manages the storage observers of a common host. Caches the usage and quota of | 72 // Manages the storage observers of a common host. Caches the usage and quota of |
| 73 // the host to avoid accumulating for every change. | 73 // the host to avoid accumulating for every change. |
| 74 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE HostStorageObservers { | 74 class STORAGE_EXPORT_PRIVATE HostStorageObservers { |
| 75 public: | 75 public: |
| 76 explicit HostStorageObservers(QuotaManager* quota_manager); | 76 explicit HostStorageObservers(QuotaManager* quota_manager); |
| 77 virtual ~HostStorageObservers(); | 77 virtual ~HostStorageObservers(); |
| 78 | 78 |
| 79 bool is_initialized() const { return initialized_; } | 79 bool is_initialized() const { return initialized_; } |
| 80 | 80 |
| 81 // Adds/removes an observer. | 81 // Adds/removes an observer. |
| 82 void AddObserver( | 82 void AddObserver( |
| 83 StorageObserver* observer, | 83 StorageObserver* observer, |
| 84 const StorageObserver::MonitorParams& params); | 84 const StorageObserver::MonitorParams& params); |
| (...skipping 26 matching lines...) Expand all Loading... |
| 111 | 111 |
| 112 base::WeakPtrFactory<HostStorageObservers> weak_factory_; | 112 base::WeakPtrFactory<HostStorageObservers> weak_factory_; |
| 113 | 113 |
| 114 friend class content::StorageMonitorTestBase; | 114 friend class content::StorageMonitorTestBase; |
| 115 | 115 |
| 116 DISALLOW_COPY_AND_ASSIGN(HostStorageObservers); | 116 DISALLOW_COPY_AND_ASSIGN(HostStorageObservers); |
| 117 }; | 117 }; |
| 118 | 118 |
| 119 | 119 |
| 120 // Manages the observers of a common storage type. | 120 // Manages the observers of a common storage type. |
| 121 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE StorageTypeObservers { | 121 class STORAGE_EXPORT_PRIVATE StorageTypeObservers { |
| 122 public: | 122 public: |
| 123 explicit StorageTypeObservers(QuotaManager* quota_manager); | 123 explicit StorageTypeObservers(QuotaManager* quota_manager); |
| 124 virtual ~StorageTypeObservers(); | 124 virtual ~StorageTypeObservers(); |
| 125 | 125 |
| 126 // Adds and removes an observer. | 126 // Adds and removes an observer. |
| 127 void AddObserver(StorageObserver* observer, | 127 void AddObserver(StorageObserver* observer, |
| 128 const StorageObserver::MonitorParams& params); | 128 const StorageObserver::MonitorParams& params); |
| 129 void RemoveObserver(StorageObserver* observer); | 129 void RemoveObserver(StorageObserver* observer); |
| 130 void RemoveObserverForFilter(StorageObserver* observer, | 130 void RemoveObserverForFilter(StorageObserver* observer, |
| 131 const StorageObserver::Filter& filter); | 131 const StorageObserver::Filter& filter); |
| 132 | 132 |
| 133 // Returns the observers of a specific host. | 133 // Returns the observers of a specific host. |
| 134 const HostStorageObservers* GetHostObservers(const std::string& host) const; | 134 const HostStorageObservers* GetHostObservers(const std::string& host) const; |
| 135 | 135 |
| 136 // Handles a usage change. | 136 // Handles a usage change. |
| 137 void NotifyUsageChange(const StorageObserver::Filter& filter, int64 delta); | 137 void NotifyUsageChange(const StorageObserver::Filter& filter, int64 delta); |
| 138 | 138 |
| 139 private: | 139 private: |
| 140 typedef std::map<std::string, HostStorageObservers*> HostObserversMap; | 140 typedef std::map<std::string, HostStorageObservers*> HostObserversMap; |
| 141 | 141 |
| 142 QuotaManager* quota_manager_; | 142 QuotaManager* quota_manager_; |
| 143 HostObserversMap host_observers_map_; | 143 HostObserversMap host_observers_map_; |
| 144 | 144 |
| 145 DISALLOW_COPY_AND_ASSIGN(StorageTypeObservers); | 145 DISALLOW_COPY_AND_ASSIGN(StorageTypeObservers); |
| 146 }; | 146 }; |
| 147 | 147 |
| 148 | 148 |
| 149 // Storage monitor manages observers and dispatches storage events to them. | 149 // Storage monitor manages observers and dispatches storage events to them. |
| 150 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE StorageMonitor { | 150 class STORAGE_EXPORT_PRIVATE StorageMonitor { |
| 151 public: | 151 public: |
| 152 explicit StorageMonitor(QuotaManager* quota_manager); | 152 explicit StorageMonitor(QuotaManager* quota_manager); |
| 153 virtual ~StorageMonitor(); | 153 virtual ~StorageMonitor(); |
| 154 | 154 |
| 155 // Adds and removes an observer. | 155 // Adds and removes an observer. |
| 156 void AddObserver(StorageObserver* observer, | 156 void AddObserver(StorageObserver* observer, |
| 157 const StorageObserver::MonitorParams& params); | 157 const StorageObserver::MonitorParams& params); |
| 158 void RemoveObserver(StorageObserver* observer); | 158 void RemoveObserver(StorageObserver* observer); |
| 159 void RemoveObserverForFilter(StorageObserver* observer, | 159 void RemoveObserverForFilter(StorageObserver* observer, |
| 160 const StorageObserver::Filter& filter); | 160 const StorageObserver::Filter& filter); |
| (...skipping 10 matching lines...) Expand all Loading... |
| 171 | 171 |
| 172 QuotaManager* quota_manager_; | 172 QuotaManager* quota_manager_; |
| 173 StorageTypeObserversMap storage_type_observers_map_; | 173 StorageTypeObserversMap storage_type_observers_map_; |
| 174 | 174 |
| 175 DISALLOW_COPY_AND_ASSIGN(StorageMonitor); | 175 DISALLOW_COPY_AND_ASSIGN(StorageMonitor); |
| 176 }; | 176 }; |
| 177 | 177 |
| 178 } // namespace storage | 178 } // namespace storage |
| 179 | 179 |
| 180 #endif // WEBKIT_BROWSER_QUOTA_STORAGE_MONITOR_H_ | 180 #endif // WEBKIT_BROWSER_QUOTA_STORAGE_MONITOR_H_ |
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