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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #include "base/files/file_path_watcher.h" | 5 #include "base/files/file_path_watcher.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/files/file.h" | 8 #include "base/files/file.h" |
9 #include "base/files/file_path.h" | 9 #include "base/files/file_path.h" |
10 #include "base/files/file_util.h" | 10 #include "base/files/file_util.h" |
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23 public base::win::ObjectWatcher::Delegate, | 23 public base::win::ObjectWatcher::Delegate, |
24 public MessageLoop::DestructionObserver { | 24 public MessageLoop::DestructionObserver { |
25 public: | 25 public: |
26 FilePathWatcherImpl() | 26 FilePathWatcherImpl() |
27 : handle_(INVALID_HANDLE_VALUE), | 27 : handle_(INVALID_HANDLE_VALUE), |
28 recursive_watch_(false) {} | 28 recursive_watch_(false) {} |
29 | 29 |
30 // FilePathWatcher::PlatformDelegate overrides. | 30 // FilePathWatcher::PlatformDelegate overrides. |
31 virtual bool Watch(const FilePath& path, | 31 virtual bool Watch(const FilePath& path, |
32 bool recursive, | 32 bool recursive, |
33 const FilePathWatcher::Callback& callback) OVERRIDE; | 33 const FilePathWatcher::Callback& callback) override; |
34 virtual void Cancel() OVERRIDE; | 34 virtual void Cancel() override; |
35 | 35 |
36 // Deletion of the FilePathWatcher will call Cancel() to dispose of this | 36 // Deletion of the FilePathWatcher will call Cancel() to dispose of this |
37 // object in the right thread. This also observes destruction of the required | 37 // object in the right thread. This also observes destruction of the required |
38 // cleanup thread, in case it quits before Cancel() is called. | 38 // cleanup thread, in case it quits before Cancel() is called. |
39 virtual void WillDestroyCurrentMessageLoop() OVERRIDE; | 39 virtual void WillDestroyCurrentMessageLoop() override; |
40 | 40 |
41 // Callback from MessageLoopForIO. | 41 // Callback from MessageLoopForIO. |
42 virtual void OnObjectSignaled(HANDLE object); | 42 virtual void OnObjectSignaled(HANDLE object); |
43 | 43 |
44 private: | 44 private: |
45 virtual ~FilePathWatcherImpl() {} | 45 virtual ~FilePathWatcherImpl() {} |
46 | 46 |
47 // Setup a watch handle for directory |dir|. Set |recursive| to true to watch | 47 // Setup a watch handle for directory |dir|. Set |recursive| to true to watch |
48 // the directory sub trees. Returns true if no fatal error occurs. |handle| | 48 // the directory sub trees. Returns true if no fatal error occurs. |handle| |
49 // will receive the handle value if |dir| is watchable, otherwise | 49 // will receive the handle value if |dir| is watchable, otherwise |
50 // INVALID_HANDLE_VALUE. | 50 // INVALID_HANDLE_VALUE. |
51 static bool SetupWatchHandle(const FilePath& dir, | 51 static bool SetupWatchHandle(const FilePath& dir, |
52 bool recursive, | 52 bool recursive, |
53 HANDLE* handle) WARN_UNUSED_RESULT; | 53 HANDLE* handle) WARN_UNUSED_RESULT; |
54 | 54 |
55 // (Re-)Initialize the watch handle. | 55 // (Re-)Initialize the watch handle. |
56 bool UpdateWatch() WARN_UNUSED_RESULT; | 56 bool UpdateWatch() WARN_UNUSED_RESULT; |
57 | 57 |
58 // Destroy the watch handle. | 58 // Destroy the watch handle. |
59 void DestroyWatch(); | 59 void DestroyWatch(); |
60 | 60 |
61 // Cleans up and stops observing the |message_loop_| thread. | 61 // Cleans up and stops observing the |message_loop_| thread. |
62 void CancelOnMessageLoopThread() OVERRIDE; | 62 void CancelOnMessageLoopThread() override; |
63 | 63 |
64 // Callback to notify upon changes. | 64 // Callback to notify upon changes. |
65 FilePathWatcher::Callback callback_; | 65 FilePathWatcher::Callback callback_; |
66 | 66 |
67 // Path we're supposed to watch (passed to callback). | 67 // Path we're supposed to watch (passed to callback). |
68 FilePath target_; | 68 FilePath target_; |
69 | 69 |
70 // Handle for FindFirstChangeNotification. | 70 // Handle for FindFirstChangeNotification. |
71 HANDLE handle_; | 71 HANDLE handle_; |
72 | 72 |
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298 handle_ = INVALID_HANDLE_VALUE; | 298 handle_ = INVALID_HANDLE_VALUE; |
299 } | 299 } |
300 | 300 |
301 } // namespace | 301 } // namespace |
302 | 302 |
303 FilePathWatcher::FilePathWatcher() { | 303 FilePathWatcher::FilePathWatcher() { |
304 impl_ = new FilePathWatcherImpl(); | 304 impl_ = new FilePathWatcherImpl(); |
305 } | 305 } |
306 | 306 |
307 } // namespace base | 307 } // namespace base |
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