| // Copyright 2018 The Chromium OS 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 BLUETOOTH_COMMON_DBUS_CLIENT_H_ |
| #define BLUETOOTH_COMMON_DBUS_CLIENT_H_ |
| |
| #include <string> |
| |
| #include <base/callback.h> |
| #include <base/macros.h> |
| #include <base/memory/ref_counted.h> |
| #include <base/memory/weak_ptr.h> |
| #include <dbus/bus.h> |
| |
| namespace bluetooth { |
| |
| // Represents a D-Bus client. |
| class DBusClient { |
| public: |
| DBusClient(const scoped_refptr<dbus::Bus>& bus, |
| const std::string& client_address); |
| ~DBusClient(); |
| |
| // Registers a listener to be notified when this client becomes unavailable |
| // (disconnected from D-Bus). This should be called only once. |
| void WatchClientUnavailable(const base::Closure& client_unavailable_callback); |
| |
| private: |
| // Accepts matched messages from D-Bus daemon, relays it to |HandleMessage|. |
| // This adapter is needed since libdbus only accepts static C function as |
| // the callback. |
| static DBusHandlerResult HandleMessageThunk(DBusConnection* connection, |
| DBusMessage* raw_message, |
| void* user_data); |
| DBusHandlerResult HandleMessage(DBusConnection* connection, |
| DBusMessage* raw_message); |
| |
| // The main D-Bus connection. Used for listening to NameOwnerChanged to detect |
| // the client becoming unavailable. |
| scoped_refptr<dbus::Bus> bus_; |
| |
| // D-Bus address of this client. |
| std::string client_address_; |
| // The D-Bus match rule that has been registered to D-Bus daemon. |
| std::string client_availability_match_rule_; |
| |
| // Callback to call when the client becomes unavailable. |
| base::Closure client_unavailable_callback_; |
| |
| // Must come last so that weak pointers will be invalidated before other |
| // members are destroyed. |
| base::WeakPtrFactory<DBusClient> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DBusClient); |
| }; |
| |
| } // namespace bluetooth |
| |
| #endif // BLUETOOTH_COMMON_DBUS_CLIENT_H_ |