| // |
| // Copyright 2015 Google, Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at: |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include "service/ipc/binder/bluetooth_le_advertiser_binder_server.h" |
| |
| #include <base/logging.h> |
| |
| #include "service/adapter.h" |
| |
| using android::String8; |
| using android::String16; |
| using android::binder::Status; |
| |
| namespace ipc { |
| namespace binder { |
| |
| namespace { |
| const int kInvalidInstanceId = -1; |
| } // namespace |
| |
| BluetoothLeAdvertiserBinderServer::BluetoothLeAdvertiserBinderServer( |
| bluetooth::Adapter* adapter) |
| : adapter_(adapter) { |
| CHECK(adapter_); |
| } |
| |
| BluetoothLeAdvertiserBinderServer::~BluetoothLeAdvertiserBinderServer() {} |
| |
| Status BluetoothLeAdvertiserBinderServer::RegisterAdvertiser( |
| const android::sp<IBluetoothLeAdvertiserCallback>& callback, |
| bool* _aidl_return) { |
| VLOG(2) << __func__; |
| bluetooth::LowEnergyAdvertiserFactory* adv_factory = |
| adapter_->GetLeAdvertiserFactory(); |
| |
| *_aidl_return = RegisterInstanceBase(callback, adv_factory); |
| return Status::ok(); |
| } |
| |
| Status BluetoothLeAdvertiserBinderServer::UnregisterAdvertiser( |
| int advertiser_id) { |
| VLOG(2) << __func__; |
| UnregisterInstanceBase(advertiser_id); |
| return Status::ok(); |
| } |
| |
| Status BluetoothLeAdvertiserBinderServer::UnregisterAll() { |
| VLOG(2) << __func__; |
| UnregisterAllBase(); |
| return Status::ok(); |
| } |
| |
| Status BluetoothLeAdvertiserBinderServer::StartMultiAdvertising( |
| int advertiser_id, const android::bluetooth::AdvertiseData& advertise_data, |
| const android::bluetooth::AdvertiseData& scan_response, |
| const android::bluetooth::AdvertiseSettings& settings, bool* _aidl_return) { |
| VLOG(2) << __func__ << " advertiser_id: " << advertiser_id; |
| std::lock_guard<std::mutex> lock(*maps_lock()); |
| |
| auto advertiser = GetLEAdvertiser(advertiser_id); |
| if (!advertiser) { |
| LOG(ERROR) << "Unknown advertiser_id: " << advertiser_id; |
| *_aidl_return = false; |
| return Status::ok(); |
| } |
| |
| // Create a weak pointer and pass that to the callback to prevent a potential |
| // use after free. |
| android::wp<BluetoothLeAdvertiserBinderServer> weak_ptr_to_this(this); |
| auto settings_copy = settings; |
| auto callback = [=](bluetooth::BLEStatus status) { |
| auto sp_to_this = weak_ptr_to_this.promote(); |
| if (!sp_to_this.get()) { |
| VLOG(2) << "BluetoothLeAdvertiserBinderServer was deleted"; |
| return; |
| } |
| |
| std::lock_guard<std::mutex> lock(*maps_lock()); |
| |
| auto cb = GetLECallback(advertiser_id); |
| if (!cb.get()) { |
| VLOG(1) << "Advertiser was removed before callback: " << advertiser_id; |
| return; |
| } |
| |
| cb->OnMultiAdvertiseCallback(status, true /* is_start */, settings_copy); |
| }; |
| |
| if (!advertiser->StartAdvertising(settings, advertise_data, scan_response, |
| callback)) { |
| LOG(ERROR) << "Failed to initiate call to start advertising"; |
| *_aidl_return = false; |
| return Status::ok(); |
| } |
| |
| *_aidl_return = true; |
| return Status::ok(); |
| } |
| |
| Status BluetoothLeAdvertiserBinderServer::StopMultiAdvertising( |
| int advertiser_id, bool* _aidl_return) { |
| VLOG(2) << __func__; |
| std::lock_guard<std::mutex> lock(*maps_lock()); |
| |
| auto advertiser = GetLEAdvertiser(advertiser_id); |
| if (!advertiser) { |
| LOG(ERROR) << "Unknown advertiser_id: " << advertiser_id; |
| *_aidl_return = false; |
| return Status::ok(); |
| } |
| |
| // Create a weak pointer and pass that to the callback to prevent a potential |
| // use after free. |
| android::wp<BluetoothLeAdvertiserBinderServer> weak_ptr_to_this(this); |
| auto settings_copy = advertiser->advertise_settings(); |
| auto callback = [=](bluetooth::BLEStatus status) { |
| auto sp_to_this = weak_ptr_to_this.promote(); |
| if (!sp_to_this.get()) { |
| VLOG(2) << "BluetoothLeAdvertiserBinderServer was deleted"; |
| return; |
| } |
| |
| auto cb = GetLECallback(advertiser_id); |
| if (!cb.get()) { |
| VLOG(2) << "Advertiser was unregistered - advertiser_id: " |
| << advertiser_id; |
| return; |
| } |
| |
| std::lock_guard<std::mutex> lock(*maps_lock()); |
| |
| cb->OnMultiAdvertiseCallback(status, false /* is_start */, settings_copy); |
| }; |
| |
| if (!advertiser->StopAdvertising(callback)) { |
| LOG(ERROR) << "Failed to initiate call to start advertising"; |
| *_aidl_return = false; |
| return Status::ok(); |
| } |
| |
| *_aidl_return = true; |
| return Status::ok(); |
| } |
| |
| android::sp<IBluetoothLeAdvertiserCallback> |
| BluetoothLeAdvertiserBinderServer::GetLECallback(int advertiser_id) { |
| auto cb = GetCallback(advertiser_id); |
| return android::sp<IBluetoothLeAdvertiserCallback>( |
| static_cast<IBluetoothLeAdvertiserCallback*>(cb.get())); |
| } |
| |
| std::shared_ptr<bluetooth::LowEnergyAdvertiser> |
| BluetoothLeAdvertiserBinderServer::GetLEAdvertiser(int advertiser_id) { |
| return std::static_pointer_cast<bluetooth::LowEnergyAdvertiser>( |
| GetInstance(advertiser_id)); |
| } |
| |
| void BluetoothLeAdvertiserBinderServer::OnRegisterInstanceImpl( |
| bluetooth::BLEStatus status, android::sp<IInterface> callback, |
| bluetooth::BluetoothInstance* instance) { |
| VLOG(1) << __func__ << " status: " << status; |
| |
| android::sp<IBluetoothLeAdvertiserCallback> cb( |
| static_cast<IBluetoothLeAdvertiserCallback*>(callback.get())); |
| cb->OnAdvertiserRegistered(status, (status == bluetooth::BLE_STATUS_SUCCESS) |
| ? instance->GetInstanceId() |
| : kInvalidInstanceId); |
| } |
| |
| } // namespace binder |
| } // namespace ipc |