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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_STORAGE_MONITOR_VOLUME_MOUNT_WATCHER_WIN_H_ | 5 #ifndef CHROME_BROWSER_STORAGE_MONITOR_VOLUME_MOUNT_WATCHER_WIN_H_ |
6 #define CHROME_BROWSER_STORAGE_MONITOR_VOLUME_MOUNT_WATCHER_WIN_H_ | 6 #define CHROME_BROWSER_STORAGE_MONITOR_VOLUME_MOUNT_WATCHER_WIN_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <set> | 9 #include <set> |
10 #include <string> | 10 #include <string> |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
14 #include "base/callback.h" | 14 #include "base/callback.h" |
15 #include "base/files/file_path.h" | 15 #include "base/files/file_path.h" |
16 #include "base/memory/weak_ptr.h" | 16 #include "base/memory/weak_ptr.h" |
17 #include "base/sequenced_task_runner.h" | 17 #include "base/sequenced_task_runner.h" |
18 #include "base/strings/string16.h" | 18 #include "base/strings/string16.h" |
19 #include "base/threading/sequenced_worker_pool.h" | 19 #include "base/threading/sequenced_worker_pool.h" |
20 #include "chrome/browser/storage_monitor/storage_info.h" | 20 #include "chrome/browser/storage_monitor/storage_info.h" |
21 #include "chrome/browser/storage_monitor/storage_monitor.h" | 21 #include "chrome/browser/storage_monitor/storage_monitor.h" |
22 | 22 |
23 namespace chrome { | |
24 | |
25 namespace test { | |
26 class TestVolumeMountWatcherWin; | 23 class TestVolumeMountWatcherWin; |
27 } | |
28 | 24 |
29 // This class watches the volume mount points and sends notifications to | 25 // This class watches the volume mount points and sends notifications to |
30 // StorageMonitor about the device attach/detach events. | 26 // StorageMonitor about the device attach/detach events. |
31 // This is a singleton class instantiated by StorageMonitorWin. | 27 // This is a singleton class instantiated by StorageMonitorWin. |
32 class VolumeMountWatcherWin { | 28 class VolumeMountWatcherWin { |
33 public: | 29 public: |
34 VolumeMountWatcherWin(); | 30 VolumeMountWatcherWin(); |
35 virtual ~VolumeMountWatcherWin(); | 31 virtual ~VolumeMountWatcherWin(); |
36 | 32 |
37 // Returns the volume file path of the drive specified by the |drive_number|. | 33 // Returns the volume file path of the drive specified by the |drive_number|. |
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89 virtual GetAttachedDevicesCallbackType GetAttachedDevicesCallback() const; | 85 virtual GetAttachedDevicesCallbackType GetAttachedDevicesCallback() const; |
90 virtual GetDeviceDetailsCallbackType GetDeviceDetailsCallback() const; | 86 virtual GetDeviceDetailsCallbackType GetDeviceDetailsCallback() const; |
91 | 87 |
92 // Worker pool used to collect device information. Used because some | 88 // Worker pool used to collect device information. Used because some |
93 // devices freeze workers trying to get device info, resulting in | 89 // devices freeze workers trying to get device info, resulting in |
94 // shutdown hangs. | 90 // shutdown hangs. |
95 scoped_refptr<base::SequencedWorkerPool> device_info_worker_pool_; | 91 scoped_refptr<base::SequencedWorkerPool> device_info_worker_pool_; |
96 scoped_refptr<base::SequencedTaskRunner> task_runner_; | 92 scoped_refptr<base::SequencedTaskRunner> task_runner_; |
97 | 93 |
98 private: | 94 private: |
99 friend class test::TestVolumeMountWatcherWin; | 95 friend class TestVolumeMountWatcherWin; |
100 | 96 |
101 // Key: Mass storage device mount point. | 97 // Key: Mass storage device mount point. |
102 // Value: Mass storage device metadata. | 98 // Value: Mass storage device metadata. |
103 typedef std::map<base::FilePath, StorageInfo> MountPointDeviceMetadataMap; | 99 typedef std::map<base::FilePath, StorageInfo> MountPointDeviceMetadataMap; |
104 | 100 |
105 // Maintain a set of device attribute check calls in-flight. Only accessed | 101 // Maintain a set of device attribute check calls in-flight. Only accessed |
106 // on the UI thread. This is to try and prevent the same device from | 102 // on the UI thread. This is to try and prevent the same device from |
107 // occupying our worker pool in case of windows API call hangs. | 103 // occupying our worker pool in case of windows API call hangs. |
108 std::set<base::FilePath> pending_device_checks_; | 104 std::set<base::FilePath> pending_device_checks_; |
109 | 105 |
110 // A map from device mount point to device metadata. Only accessed on the UI | 106 // A map from device mount point to device metadata. Only accessed on the UI |
111 // thread. | 107 // thread. |
112 MountPointDeviceMetadataMap device_metadata_; | 108 MountPointDeviceMetadataMap device_metadata_; |
113 | 109 |
114 base::WeakPtrFactory<VolumeMountWatcherWin> weak_factory_; | 110 base::WeakPtrFactory<VolumeMountWatcherWin> weak_factory_; |
115 | 111 |
116 // The notifications object to use to signal newly attached volumes. Only | 112 // The notifications object to use to signal newly attached volumes. Only |
117 // removable devices will be notified. | 113 // removable devices will be notified. |
118 StorageMonitor::Receiver* notifications_; | 114 StorageMonitor::Receiver* notifications_; |
119 | 115 |
120 DISALLOW_COPY_AND_ASSIGN(VolumeMountWatcherWin); | 116 DISALLOW_COPY_AND_ASSIGN(VolumeMountWatcherWin); |
121 }; | 117 }; |
122 | 118 |
123 } // namespace chrome | |
124 | |
125 #endif // CHROME_BROWSER_STORAGE_MONITOR_VOLUME_MOUNT_WATCHER_WIN_H_ | 119 #endif // CHROME_BROWSER_STORAGE_MONITOR_VOLUME_MOUNT_WATCHER_WIN_H_ |
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