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- // Copyright 2015 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.
- #include "device/bluetooth/dbus/bluetooth_le_advertising_manager_client.h"
- #include "base/bind.h"
- #include "base/check.h"
- #include "base/memory/raw_ptr.h"
- #include "base/observer_list.h"
- #include "dbus/bus.h"
- #include "dbus/message.h"
- #include "dbus/object_manager.h"
- #include "dbus/object_proxy.h"
- #include "third_party/cros_system_api/dbus/service_constants.h"
- namespace bluez {
- const char BluetoothLEAdvertisingManagerClient::kNoResponseError[] =
- "org.chromium.Error.NoResponse";
- // The BluetoothAdvertisementManagerClient implementation used in production.
- class BluetoothAdvertisementManagerClientImpl
- : public BluetoothLEAdvertisingManagerClient,
- public dbus::ObjectManager::Interface {
- public:
- BluetoothAdvertisementManagerClientImpl() : object_manager_(nullptr) {}
- BluetoothAdvertisementManagerClientImpl(
- const BluetoothAdvertisementManagerClientImpl&) = delete;
- BluetoothAdvertisementManagerClientImpl& operator=(
- const BluetoothAdvertisementManagerClientImpl&) = delete;
- ~BluetoothAdvertisementManagerClientImpl() override {
- if (object_manager_) {
- object_manager_->UnregisterInterface(
- bluetooth_advertising_manager::kBluetoothAdvertisingManagerInterface);
- }
- }
- // BluetoothAdapterClient override.
- void AddObserver(
- BluetoothLEAdvertisingManagerClient::Observer* observer) override {
- DCHECK(observer);
- observers_.AddObserver(observer);
- }
- // BluetoothAdapterClient override.
- void RemoveObserver(
- BluetoothLEAdvertisingManagerClient::Observer* observer) override {
- DCHECK(observer);
- observers_.RemoveObserver(observer);
- }
- // dbus::ObjectManager::Interface override.
- dbus::PropertySet* CreateProperties(
- dbus::ObjectProxy* object_proxy,
- const dbus::ObjectPath& object_path,
- const std::string& interface_name) override {
- return new dbus::PropertySet(object_proxy, interface_name,
- dbus::PropertySet::PropertyChangedCallback());
- }
- // BluetoothAdvertisementManagerClient override.
- void RegisterAdvertisement(const dbus::ObjectPath& manager_object_path,
- const dbus::ObjectPath& advertisement_object_path,
- base::OnceClosure callback,
- ErrorCallback error_callback) override {
- dbus::MethodCall method_call(
- bluetooth_advertising_manager::kBluetoothAdvertisingManagerInterface,
- bluetooth_advertising_manager::kRegisterAdvertisement);
- dbus::MessageWriter writer(&method_call);
- writer.AppendObjectPath(advertisement_object_path);
- // Empty dictionary for options.
- dbus::MessageWriter array_writer(NULL);
- writer.OpenArray("{sv}", &array_writer);
- writer.CloseContainer(&array_writer);
- CallObjectProxyMethod(manager_object_path, &method_call,
- std::move(callback), std::move(error_callback));
- }
- // BluetoothAdvertisementManagerClient override.
- void UnregisterAdvertisement(
- const dbus::ObjectPath& manager_object_path,
- const dbus::ObjectPath& advertisement_object_path,
- base::OnceClosure callback,
- ErrorCallback error_callback) override {
- dbus::MethodCall method_call(
- bluetooth_advertising_manager::kBluetoothAdvertisingManagerInterface,
- bluetooth_advertising_manager::kUnregisterAdvertisement);
- dbus::MessageWriter writer(&method_call);
- writer.AppendObjectPath(advertisement_object_path);
- CallObjectProxyMethod(manager_object_path, &method_call,
- std::move(callback), std::move(error_callback));
- }
- void SetAdvertisingInterval(const dbus::ObjectPath& manager_object_path,
- uint16_t min_interval_ms,
- uint16_t max_interval_ms,
- base::OnceClosure callback,
- ErrorCallback error_callback) override {
- dbus::MethodCall method_call(
- bluetooth_advertising_manager::kBluetoothAdvertisingManagerInterface,
- bluetooth_advertising_manager::kSetAdvertisingIntervals);
- dbus::MessageWriter writer(&method_call);
- writer.AppendUint16(min_interval_ms);
- writer.AppendUint16(max_interval_ms);
- CallObjectProxyMethod(manager_object_path, &method_call,
- std::move(callback), std::move(error_callback));
- }
- void ResetAdvertising(const dbus::ObjectPath& manager_object_path,
- base::OnceClosure callback,
- ErrorCallback error_callback) override {
- dbus::MethodCall method_call(
- bluetooth_advertising_manager::kBluetoothAdvertisingManagerInterface,
- bluetooth_advertising_manager::kResetAdvertising);
- CallObjectProxyMethod(manager_object_path, &method_call,
- std::move(callback), std::move(error_callback));
- }
- protected:
- void Init(dbus::Bus* bus,
- const std::string& bluetooth_service_name) override {
- DCHECK(bus);
- object_manager_ = bus->GetObjectManager(
- bluetooth_service_name,
- dbus::ObjectPath(
- bluetooth_object_manager::kBluetoothObjectManagerServicePath));
- object_manager_->RegisterInterface(
- bluetooth_advertising_manager::kBluetoothAdvertisingManagerInterface,
- this);
- }
- private:
- // Unified function to call object proxy method. This includes checking
- // if the bluetooth adapter exists and run error callback if it doesn't.
- void CallObjectProxyMethod(const dbus::ObjectPath& manager_object_path,
- dbus::MethodCall* method_call,
- base::OnceClosure callback,
- ErrorCallback error_callback) {
- DCHECK(object_manager_);
- dbus::ObjectProxy* object_proxy =
- object_manager_->GetObjectProxy(manager_object_path);
- if (!object_proxy) {
- std::move(error_callback)
- .Run(bluetooth_advertising_manager::kErrorFailed,
- "Adapter does not exist.");
- return;
- }
- object_proxy->CallMethodWithErrorCallback(
- method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
- base::BindOnce(&BluetoothAdvertisementManagerClientImpl::OnSuccess,
- weak_ptr_factory_.GetWeakPtr(), std::move(callback)),
- base::BindOnce(&BluetoothAdvertisementManagerClientImpl::OnError,
- weak_ptr_factory_.GetWeakPtr(),
- std::move(error_callback)));
- }
- // Called by dbus::ObjectManager when an object with the advertising manager
- // interface is created. Informs observers.
- void ObjectAdded(const dbus::ObjectPath& object_path,
- const std::string& interface_name) override {
- for (auto& observer : observers_)
- observer.AdvertisingManagerAdded(object_path);
- }
- // Called by dbus::ObjectManager when an object with the advertising manager
- // interface is removed. Informs observers.
- void ObjectRemoved(const dbus::ObjectPath& object_path,
- const std::string& interface_name) override {
- for (auto& observer : observers_)
- observer.AdvertisingManagerRemoved(object_path);
- }
- // Called when a response for successful method call is received.
- void OnSuccess(base::OnceClosure callback, dbus::Response* response) {
- DCHECK(response);
- std::move(callback).Run();
- }
- // Called when a response for a failed method call is received.
- void OnError(ErrorCallback error_callback, dbus::ErrorResponse* response) {
- // Error response has optional error message argument.
- std::string error_name;
- std::string error_message;
- if (response) {
- dbus::MessageReader reader(response);
- error_name = response->GetErrorName();
- reader.PopString(&error_message);
- } else {
- error_name = kNoResponseError;
- error_message = "";
- }
- std::move(error_callback).Run(error_name, error_message);
- }
- raw_ptr<dbus::ObjectManager> object_manager_;
- // List of observers interested in event notifications from us.
- base::ObserverList<BluetoothLEAdvertisingManagerClient::Observer>::Unchecked
- observers_;
- // 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<BluetoothAdvertisementManagerClientImpl>
- weak_ptr_factory_{this};
- };
- BluetoothLEAdvertisingManagerClient::BluetoothLEAdvertisingManagerClient() =
- default;
- BluetoothLEAdvertisingManagerClient::~BluetoothLEAdvertisingManagerClient() =
- default;
- BluetoothLEAdvertisingManagerClient*
- BluetoothLEAdvertisingManagerClient::Create() {
- return new BluetoothAdvertisementManagerClientImpl();
- }
- } // namespace bluez
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