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Side by Side Diff: webkit/fileapi/media/mtp_device_map_service.h

Issue 12163003: Add FilePath to base namespace. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 10 months ago
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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 WEBKIT_FILEAPI_MEDIA_MTP_DEVICE_MAP_SERVICE_H_ 5 #ifndef WEBKIT_FILEAPI_MEDIA_MTP_DEVICE_MAP_SERVICE_H_
6 #define WEBKIT_FILEAPI_MEDIA_MTP_DEVICE_MAP_SERVICE_H_ 6 #define WEBKIT_FILEAPI_MEDIA_MTP_DEVICE_MAP_SERVICE_H_
7 7
8 #include <map> 8 #include <map>
9 9
10 #include "base/file_path.h" 10 #include "base/file_path.h"
11 #include "base/lazy_instance.h" 11 #include "base/lazy_instance.h"
12 #include "base/synchronization/lock.h" 12 #include "base/synchronization/lock.h"
13 #include "webkit/storage/webkit_storage_export.h" 13 #include "webkit/storage/webkit_storage_export.h"
14 14
15 namespace fileapi { 15 namespace fileapi {
16 16
17 class MTPDeviceDelegate; 17 class MTPDeviceDelegate;
18 18
19 // This class provides media transfer protocol (MTP) device delegate to 19 // This class provides media transfer protocol (MTP) device delegate to
20 // complete media file system operations. ScopedMTPDeviceMapEntry class 20 // complete media file system operations. ScopedMTPDeviceMapEntry class
21 // manages the device map entries. 21 // manages the device map entries.
22 class WEBKIT_STORAGE_EXPORT MTPDeviceMapService { 22 class WEBKIT_STORAGE_EXPORT MTPDeviceMapService {
23 public: 23 public:
24 static MTPDeviceMapService* GetInstance(); 24 static MTPDeviceMapService* GetInstance();
25 25
26 // Adds the MTP device delegate to the map service. |device_location| 26 // Adds the MTP device delegate to the map service. |device_location|
27 // specifies the mount location of the MTP device. 27 // specifies the mount location of the MTP device.
28 // Called on a media task runner thread. 28 // Called on a media task runner thread.
29 void AddDelegate(const FilePath::StringType& device_location, 29 void AddDelegate(const base::FilePath::StringType& device_location,
30 MTPDeviceDelegate* delegate); 30 MTPDeviceDelegate* delegate);
31 31
32 // Removes the MTP device delegate from the map service. |device_location| 32 // Removes the MTP device delegate from the map service. |device_location|
33 // specifies the mount location of the MTP device. 33 // specifies the mount location of the MTP device.
34 // Called on the UI thread. 34 // Called on the UI thread.
35 void RemoveDelegate(const FilePath::StringType& device_location); 35 void RemoveDelegate(const base::FilePath::StringType& device_location);
36 36
37 // Gets the media device delegate associated with |filesystem_id|. 37 // Gets the media device delegate associated with |filesystem_id|.
38 // Return NULL if the |filesystem_id| is no longer valid (e.g. because the 38 // Return NULL if the |filesystem_id| is no longer valid (e.g. because the
39 // corresponding device is detached, etc). 39 // corresponding device is detached, etc).
40 // Called on a media task runner thread. 40 // Called on a media task runner thread.
41 // TODO(thestig) DCHECK AddDelegate() and GetMTPDeviceDelegate() are actually 41 // TODO(thestig) DCHECK AddDelegate() and GetMTPDeviceDelegate() are actually
42 // called on the same task runner. 42 // called on the same task runner.
43 MTPDeviceDelegate* GetMTPDeviceDelegate(const std::string& filesystem_id); 43 MTPDeviceDelegate* GetMTPDeviceDelegate(const std::string& filesystem_id);
44 44
45 private: 45 private:
46 friend struct base::DefaultLazyInstanceTraits<MTPDeviceMapService>; 46 friend struct base::DefaultLazyInstanceTraits<MTPDeviceMapService>;
47 47
48 // Mapping of device_location and MTPDeviceDelegate* object. It is safe to 48 // Mapping of device_location and MTPDeviceDelegate* object. It is safe to
49 // store and access the raw pointer. This class operates on the IO thread. 49 // store and access the raw pointer. This class operates on the IO thread.
50 typedef std::map<FilePath::StringType, MTPDeviceDelegate*> DelegateMap; 50 typedef std::map<base::FilePath::StringType, MTPDeviceDelegate*> DelegateMap;
51 51
52 // Get access to this class using GetInstance() method. 52 // Get access to this class using GetInstance() method.
53 MTPDeviceMapService(); 53 MTPDeviceMapService();
54 ~MTPDeviceMapService(); 54 ~MTPDeviceMapService();
55 55
56 // Map of attached mtp device delegates. 56 // Map of attached mtp device delegates.
57 DelegateMap delegate_map_; 57 DelegateMap delegate_map_;
58 base::Lock lock_; 58 base::Lock lock_;
59 59
60 DISALLOW_COPY_AND_ASSIGN(MTPDeviceMapService); 60 DISALLOW_COPY_AND_ASSIGN(MTPDeviceMapService);
61 }; 61 };
62 62
63 } // namespace fileapi 63 } // namespace fileapi
64 64
65 #endif // WEBKIT_FILEAPI_MEDIA_MTP_DEVICE_MAP_SERVICE_H_ 65 #endif // WEBKIT_FILEAPI_MEDIA_MTP_DEVICE_MAP_SERVICE_H_
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