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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 CHROME_UTILITY_MEDIA_GALLERIES_IPC_DATA_SOURCE_H_ | 5 #ifndef CHROME_UTILITY_MEDIA_GALLERIES_IPC_DATA_SOURCE_H_ |
6 #define CHROME_UTILITY_MEDIA_GALLERIES_IPC_DATA_SOURCE_H_ | 6 #define CHROME_UTILITY_MEDIA_GALLERIES_IPC_DATA_SOURCE_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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25 // for read operations to succeed. | 25 // for read operations to succeed. |
26 class IPCDataSource: public media::DataSource, | 26 class IPCDataSource: public media::DataSource, |
27 public UtilityMessageHandler { | 27 public UtilityMessageHandler { |
28 public: | 28 public: |
29 // May only be called on the utility thread. | 29 // May only be called on the utility thread. |
30 explicit IPCDataSource(int64 total_size); | 30 explicit IPCDataSource(int64 total_size); |
31 virtual ~IPCDataSource(); | 31 virtual ~IPCDataSource(); |
32 | 32 |
33 // Implementation of DataSource. These methods may be called on any single | 33 // Implementation of DataSource. These methods may be called on any single |
34 // thread. First usage of these methods attaches a thread checker. | 34 // thread. First usage of these methods attaches a thread checker. |
35 virtual void Stop() OVERRIDE; | 35 virtual void Stop() override; |
36 virtual void Read(int64 position, int size, uint8* data, | 36 virtual void Read(int64 position, int size, uint8* data, |
37 const ReadCB& read_cb) OVERRIDE; | 37 const ReadCB& read_cb) override; |
38 virtual bool GetSize(int64* size_out) OVERRIDE; | 38 virtual bool GetSize(int64* size_out) override; |
39 virtual bool IsStreaming() OVERRIDE; | 39 virtual bool IsStreaming() override; |
40 virtual void SetBitrate(int bitrate) OVERRIDE; | 40 virtual void SetBitrate(int bitrate) override; |
41 | 41 |
42 // Implementation of UtilityMessageHandler. May only be called on the utility | 42 // Implementation of UtilityMessageHandler. May only be called on the utility |
43 // thread. | 43 // thread. |
44 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | 44 virtual bool OnMessageReceived(const IPC::Message& message) override; |
45 | 45 |
46 private: | 46 private: |
47 struct Request { | 47 struct Request { |
48 Request(); | 48 Request(); |
49 ~Request(); | 49 ~Request(); |
50 uint8* destination; | 50 uint8* destination; |
51 ReadCB callback; | 51 ReadCB callback; |
52 }; | 52 }; |
53 | 53 |
54 void ReadOnUtilityThread(int64 position, int size, uint8* data, | 54 void ReadOnUtilityThread(int64 position, int size, uint8* data, |
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65 | 65 |
66 base::ThreadChecker utility_thread_checker_; | 66 base::ThreadChecker utility_thread_checker_; |
67 | 67 |
68 // Enforces that the DataSource methods are called on one other thread only. | 68 // Enforces that the DataSource methods are called on one other thread only. |
69 base::ThreadChecker data_source_thread_checker_; | 69 base::ThreadChecker data_source_thread_checker_; |
70 }; | 70 }; |
71 | 71 |
72 } // namespace metadata | 72 } // namespace metadata |
73 | 73 |
74 #endif // CHROME_UTILITY_MEDIA_GALLERIES_IPC_DATA_SOURCE_H_ | 74 #endif // CHROME_UTILITY_MEDIA_GALLERIES_IPC_DATA_SOURCE_H_ |
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