Complete //device/bt implementation for hosting local GATT attributes.

device/bluetooth/dbus/bluetooth_gatt_application_service_provider_impl.h

+// Copyright 2016 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 DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_APPLICATION_SERVICE_PROVIDER_IMPL_H_
+#define DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_APPLICATION_SERVICE_PROVIDER_IMPL_H_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/threading/platform_thread.h"
+#include "dbus/bus.h"
+#include "dbus/exported_object.h"
+#include "dbus/message.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluez/bluetooth_local_gatt_service_bluez.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_application_service_provider.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_characteristic_service_provider.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_service_service_provider.h"
+
+namespace bluez {
+
+class BluetoothLocalGattServiceBlueZ;
+
+// The BluetoothGattApplicationServiceProvider implementation used in
+// production.
+class BluetoothGattApplicationServiceProviderImpl
+    : public BluetoothGattApplicationServiceProvider {
+ public:
+  BluetoothGattApplicationServiceProviderImpl(
+      dbus::Bus* bus,
+      const dbus::ObjectPath& object_path,
+      const std::map<dbus::ObjectPath, BluetoothLocalGattServiceBlueZ*>&
+          services);
+  ~BluetoothGattApplicationServiceProviderImpl() override;
+
+ private:
+  // Returns true if the current thread is on the origin thread.
+  bool OnOriginThread();
+
+  template <typename Attribute>
+  void WriteObjectStruct(dbus::MessageWriter* writer,
+                         const std::string& attribute_interface,
+                         Attribute* attribute);
+  template <typename Attribute>
+  void WriteInterfaceStruct(dbus::MessageWriter* writer,
+                            const std::string& attribute_interface,
+                            Attribute* attribute);
+
+  void WriteAttributeProperties(
+      dbus::MessageWriter* writer,
+      BluetoothGattServiceServiceProvider* service_provider);
+  void WriteAttributeProperties(
+      dbus::MessageWriter* writer,
+      BluetoothGattCharacteristicServiceProvider* characteristic_provider);
+  void WriteAttributeProperties(
+      dbus::MessageWriter* writer,
+      BluetoothGattDescriptorServiceProvider* descriptor_provider);
+
+  // Called by dbus:: when the Bluetooth daemon wants to fetch all the objects
+  // managed by this object manager.
+  void GetManagedObjects(dbus::MethodCall* method_call,
+                         dbus::ExportedObject::ResponseSender response_sender);
+
+  // Called by dbus:: when a method is exported.
+  void OnExported(const std::string& interface_name,
+                  const std::string& method_name,
+                  bool success);
+
+  // Origin thread (i.e. the UI thread in production).
+  base::PlatformThreadId origin_thread_id_;
+
+  // List of GATT Service service providers managed by this object manager.
+  std::vector<std::unique_ptr<BluetoothGattServiceServiceProvider>>
+      service_providers_;
+  // List of GATT Characteristic service providers managed by this object
+  // manager.
+  std::vector<std::unique_ptr<BluetoothGattCharacteristicServiceProvider>>
+      characteristic_providers_;
+  // List of GATT Descriptor service providers managed by this object manager.
+  std::vector<std::unique_ptr<BluetoothGattDescriptorServiceProvider>>
+      descriptor_providers_;
+
+  // D-Bus bus object is exported on, not owned by this object and must
+  // outlive it.
+  dbus::Bus* bus_;
+
+  // D-Bus object path of object we are exporting, kept so we can unregister
+  // again in our destructor.
+  dbus::ObjectPath object_path_;
+
+  // D-Bus object we are exporting, owned by this object.
+  scoped_refptr<dbus::ExportedObject> exported_object_;
+
+  // Weak pointer factory for generating 'this' pointers that might live longer
+  // than we do.
+  // Note: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<BluetoothGattApplicationServiceProviderImpl>
+      weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattApplicationServiceProviderImpl);
+};
+
+}  // namespace bluez
+
+#endif  // DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_APPLICATION_SERVICE_PROVIDER_IMPL_H_