OLD | NEW |
1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 // Chromium settings and storage represent user-selected preferences and | 5 // Chromium settings and storage represent user-selected preferences and |
6 // information and MUST not be extracted, overwritten or modified except | 6 // information and MUST not be extracted, overwritten or modified except |
7 // through Chromium defined APIs. | 7 // through Chromium defined APIs. |
8 | 8 |
9 #ifndef CHROME_BROWSER_WEBDATA_WEB_DATABASE_SERVICE_H_ | 9 #ifndef CHROME_BROWSER_WEBDATA_WEB_DATABASE_SERVICE_H_ |
10 #define CHROME_BROWSER_WEBDATA_WEB_DATABASE_SERVICE_H_ | 10 #define CHROME_BROWSER_WEBDATA_WEB_DATABASE_SERVICE_H_ |
(...skipping 23 matching lines...) Expand all Loading... |
34 | 34 |
35 | 35 |
36 //////////////////////////////////////////////////////////////////////////////// | 36 //////////////////////////////////////////////////////////////////////////////// |
37 // | 37 // |
38 // WebDatabaseService defines the interface to a generic data repository | 38 // WebDatabaseService defines the interface to a generic data repository |
39 // responsible for controlling access to the web database (metadata associated | 39 // responsible for controlling access to the web database (metadata associated |
40 // with web pages). | 40 // with web pages). |
41 // | 41 // |
42 //////////////////////////////////////////////////////////////////////////////// | 42 //////////////////////////////////////////////////////////////////////////////// |
43 | 43 |
44 class WebDatabaseService { | 44 class WebDatabaseService |
| 45 : public base::RefCountedThreadSafe< |
| 46 WebDatabaseService, |
| 47 content::BrowserThread::DeleteOnUIThread> { |
45 public: | 48 public: |
46 typedef base::Callback<scoped_ptr<WDTypedResult>(WebDatabase*)> ReadTask; | 49 typedef base::Callback<scoped_ptr<WDTypedResult>(WebDatabase*)> ReadTask; |
47 typedef base::Callback<WebDatabase::State(WebDatabase*)> WriteTask; | 50 typedef base::Callback<WebDatabase::State(WebDatabase*)> WriteTask; |
48 typedef base::Callback<void(sql::InitStatus)> InitCallback; | 51 typedef base::Callback<void(sql::InitStatus)> InitCallback; |
49 | 52 |
50 // Takes the path to the WebDatabase file. | 53 // Takes the path to the WebDatabase file. |
51 explicit WebDatabaseService(const base::FilePath& path); | 54 explicit WebDatabaseService(const base::FilePath& path); |
52 | 55 |
53 virtual ~WebDatabaseService(); | 56 // Adds |table| as a WebDatabaseTable that will participate in |
| 57 // managing the database, transferring ownership. All calls to this |
| 58 // method must be made before |LoadDatabase| is called. |
| 59 virtual void AddTable(scoped_ptr<WebDatabaseTable> table); |
54 | 60 |
55 // Initializes the web database service. Takes a callback which will return | 61 // Initializes the web database service. Takes a callback which will return |
56 // the status of the DB after the init. | 62 // the status of the DB after the init. |
57 virtual void LoadDatabase(const InitCallback& callback); | 63 virtual void LoadDatabase(const InitCallback& callback); |
58 | 64 |
59 // Unloads the database without actually shutting down the service. This can | 65 // Unloads the database without actually shutting down the service. This can |
60 // be used to temporarily reduce the browser process' memory footprint. | 66 // be used to temporarily reduce the browser process' memory footprint. |
61 virtual void UnloadDatabase(); | 67 virtual void UnloadDatabase(); |
62 | 68 |
63 // Unloads database and will not reload. | 69 // Unloads database and will not reload. |
(...skipping 13 matching lines...) Expand all Loading... |
77 const tracked_objects::Location& from_here, | 83 const tracked_objects::Location& from_here, |
78 const ReadTask& task, | 84 const ReadTask& task, |
79 WebDataServiceConsumer* consumer); | 85 WebDataServiceConsumer* consumer); |
80 | 86 |
81 // Cancel an existing request for a task on the DB thread. | 87 // Cancel an existing request for a task on the DB thread. |
82 // TODO(caitkp): Think about moving the definition of the Handle type to | 88 // TODO(caitkp): Think about moving the definition of the Handle type to |
83 // somewhere else. | 89 // somewhere else. |
84 virtual void CancelRequest(WebDataServiceBase::Handle h); | 90 virtual void CancelRequest(WebDataServiceBase::Handle h); |
85 | 91 |
86 private: | 92 private: |
| 93 friend struct content::BrowserThread::DeleteOnThread< |
| 94 content::BrowserThread::UI>; |
| 95 friend class base::DeleteHelper<WebDatabaseService>; |
| 96 |
| 97 virtual ~WebDatabaseService(); |
| 98 |
87 base::FilePath path_; | 99 base::FilePath path_; |
88 | 100 |
89 // The primary owner is |WebDatabaseService| but is refcounted because | 101 // The primary owner is |WebDatabaseService| but is refcounted because |
90 // PostTask on DB thread may outlive us. | 102 // PostTask on DB thread may outlive us. |
91 scoped_refptr<WebDataServiceBackend> wds_backend_; | 103 scoped_refptr<WebDataServiceBackend> wds_backend_; |
92 }; | 104 }; |
93 | 105 |
94 #endif // CHROME_BROWSER_WEBDATA_WEB_DATABASE_SERVICE_H_ | 106 #endif // CHROME_BROWSER_WEBDATA_WEB_DATABASE_SERVICE_H_ |
OLD | NEW |