| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_CHROMEOS_DBUS_LIVENESS_SERVICE_PROVIDER_H_ |
| #define CHROME_BROWSER_CHROMEOS_DBUS_LIVENESS_SERVICE_PROVIDER_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "chrome/browser/chromeos/dbus/cros_dbus_service.h" |
| #include "dbus/exported_object.h" |
| |
| namespace dbus { |
| class MethodCall; |
| class Response; |
| } |
| |
| namespace chromeos { |
| |
| // This class exports a "CheckLiveness" D-Bus method that the session manager |
| // calls periodically to confirm that Chrome's UI thread is responsive to D-Bus |
| // messages. It can be tested with the following command: |
| // |
| // % dbus-send --system --type=method_call --print-reply |
| // --dest=org.chromium.LibCrosService |
| // /org/chromium/LibCrosService |
| // org.chromium.LibCrosServiceInterface.CheckLiveness |
| // |
| // -> method return sender=:1.9 -> dest=:1.27 reply_serial=2 |
| // |
| // (An empty response should be returned.) |
| class LivenessServiceProvider |
| : public CrosDBusService::ServiceProviderInterface { |
| public: |
| LivenessServiceProvider(); |
| virtual ~LivenessServiceProvider(); |
| |
| // CrosDBusService::ServiceProviderInterface overrides: |
| virtual void Start( |
| scoped_refptr<dbus::ExportedObject> exported_object) override; |
| |
| private: |
| // Called from ExportedObject when CheckLiveness() is exported as a D-Bus |
| // method or failed to be exported. |
| void OnExported(const std::string& interface_name, |
| const std::string& method_name, |
| bool success); |
| |
| // Called on UI thread in response to a D-Bus request. |
| void CheckLiveness(dbus::MethodCall* method_call, |
| dbus::ExportedObject::ResponseSender response_sender); |
| |
| // Keep this last so that all weak pointers will be invalidated at the |
| // beginning of destruction. |
| base::WeakPtrFactory<LivenessServiceProvider> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LivenessServiceProvider); |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_DBUS_LIVENESS_SERVICE_PROVIDER_H_ |