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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_CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_ | 5 #ifndef CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_ |
| 6 #define CHROME_BROWSER_CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_ | 6 #define CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include "base/memory/ref_counted.h" |
| 9 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
| 10 #include "base/memory/ref_counted.h" | 11 #include "chromeos/chromeos_export.h" |
| 11 | 12 |
| 12 namespace base { | 13 namespace base { |
| 13 class Thread; | 14 class Thread; |
| 14 }; | 15 }; |
| 15 | 16 |
| 16 namespace dbus { | 17 namespace dbus { |
| 17 class Bus; | 18 class Bus; |
| 18 }; | 19 }; |
| 19 | 20 |
| 20 namespace chromeos { | 21 namespace chromeos { |
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| 50 // | 51 // |
| 51 // D-Bus clients managed by DBusThreadManager are guaranteed to be deleted | 52 // D-Bus clients managed by DBusThreadManager are guaranteed to be deleted |
| 52 // after the D-Bus thread so the clients don't need to worry if new | 53 // after the D-Bus thread so the clients don't need to worry if new |
| 53 // incoming messages arrive from the D-Bus thread during shutdown of the | 54 // incoming messages arrive from the D-Bus thread during shutdown of the |
| 54 // clients. The UI message loop is not running during the shutdown hence | 55 // clients. The UI message loop is not running during the shutdown hence |
| 55 // the UI message loop won't post tasks to D-BUS clients during the | 56 // the UI message loop won't post tasks to D-BUS clients during the |
| 56 // shutdown. However, to be extra cautious, clients should use | 57 // shutdown. However, to be extra cautious, clients should use |
| 57 // WeakPtrFactory when creating callbacks that run on UI thread. See | 58 // WeakPtrFactory when creating callbacks that run on UI thread. See |
| 58 // session_manager_client.cc for examples. | 59 // session_manager_client.cc for examples. |
| 59 // | 60 // |
| 60 class DBusThreadManager { | 61 class CHROMEOS_EXPORT DBusThreadManager { |
| 61 public: | 62 public: |
| 62 // Sets the global instance. Must be called before any calls to Get(). | 63 // Sets the global instance. Must be called before any calls to Get(). |
| 63 // We explicitly initialize and shut down the global object, rather than | 64 // We explicitly initialize and shut down the global object, rather than |
| 64 // making it a Singleton, to ensure clean startup and shutdown. | 65 // making it a Singleton, to ensure clean startup and shutdown. |
| 65 static void Initialize(); | 66 static void Initialize(); |
| 66 | 67 |
| 67 // Similar to Initialize(), but can inject an alternative | 68 // Similar to Initialize(), but can inject an alternative |
| 68 // DBusThreadManager such as MockDBusThreadManager for testing. | 69 // DBusThreadManager such as MockDBusThreadManager for testing. |
| 69 // The injected object will be owned by the internal pointer and deleted | 70 // The injected object will be owned by the internal pointer and deleted |
| 70 // by Shutdown(). | 71 // by Shutdown(). |
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| 170 virtual ~DBusThreadManager(); | 171 virtual ~DBusThreadManager(); |
| 171 | 172 |
| 172 protected: | 173 protected: |
| 173 DBusThreadManager(); | 174 DBusThreadManager(); |
| 174 | 175 |
| 175 DISALLOW_COPY_AND_ASSIGN(DBusThreadManager); | 176 DISALLOW_COPY_AND_ASSIGN(DBusThreadManager); |
| 176 }; | 177 }; |
| 177 | 178 |
| 178 } // namespace chromeos | 179 } // namespace chromeos |
| 179 | 180 |
| 180 #endif // CHROME_BROWSER_CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_ | 181 #endif // CHROMEOS_DBUS_DBUS_THREAD_MANAGER_H_ |
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