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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_PREDICTORS_PREDICTOR_TABLE_BASE_H_ | 5 #ifndef CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ |
6 #define CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ | 6 #define CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "base/synchronization/cancellation_flag.h" | 10 #include "base/synchronization/cancellation_flag.h" |
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22 class PredictorTableBase | 22 class PredictorTableBase |
23 : public base::RefCountedThreadSafe<PredictorTableBase> { | 23 : public base::RefCountedThreadSafe<PredictorTableBase> { |
24 protected: | 24 protected: |
25 PredictorTableBase(); | 25 PredictorTableBase(); |
26 virtual ~PredictorTableBase(); | 26 virtual ~PredictorTableBase(); |
27 | 27 |
28 // DB thread functions. | 28 // DB thread functions. |
29 virtual void CreateTableIfNonExistent() = 0; | 29 virtual void CreateTableIfNonExistent() = 0; |
30 virtual void LogDatabaseStats() = 0; | 30 virtual void LogDatabaseStats() = 0; |
31 void Initialize(sql::Connection* db); | 31 void Initialize(sql::Connection* db); |
| 32 void SetCancelled(); |
32 sql::Connection* DB(); | 33 sql::Connection* DB(); |
33 void ResetDB(); | 34 void ResetDB(); |
34 | 35 |
35 bool CantAccessDatabase(); | 36 bool CantAccessDatabase(); |
36 | 37 |
| 38 private: |
37 base::CancellationFlag cancelled_; | 39 base::CancellationFlag cancelled_; |
38 | 40 |
39 private: | |
40 friend class base::RefCountedThreadSafe<PredictorTableBase>; | 41 friend class base::RefCountedThreadSafe<PredictorTableBase>; |
41 | 42 |
42 sql::Connection* db_; | 43 sql::Connection* db_; |
43 | 44 |
44 DISALLOW_COPY_AND_ASSIGN(PredictorTableBase); | 45 DISALLOW_COPY_AND_ASSIGN(PredictorTableBase); |
45 }; | 46 }; |
46 | 47 |
47 } // namespace predictors | 48 } // namespace predictors |
48 | 49 |
49 #endif // CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ | 50 #endif // CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ |
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