| // |
| // Copyright (C) 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/low_energy_client.h" |
| |
| #include <base/logging.h> |
| |
| using std::lock_guard; |
| using std::mutex; |
| |
| namespace bluetooth { |
| |
| LowEnergyClient::LowEnergyClient(const UUID& uuid, int client_if) |
| : app_identifier_(uuid), |
| client_if_(client_if) { |
| } |
| |
| LowEnergyClient::~LowEnergyClient() { |
| // Automatically unregister the client. |
| VLOG(1) << "LowEnergyClient unregistering client: " << client_if_; |
| hal::BluetoothGattInterface::Get()-> |
| GetClientHALInterface()->unregister_client(client_if_); |
| } |
| |
| LowEnergyClientFactory::LowEnergyClientFactory() { |
| hal::BluetoothGattInterface::Get()->AddClientObserver(this); |
| } |
| |
| LowEnergyClientFactory::~LowEnergyClientFactory() { |
| hal::BluetoothGattInterface::Get()->RemoveClientObserver(this); |
| } |
| |
| bool LowEnergyClientFactory::RegisterClient(const UUID& uuid, |
| const ClientCallback& callback) { |
| VLOG(1) << __func__ << " - UUID: " << uuid.ToString(); |
| lock_guard<mutex> lock(pending_calls_lock_); |
| |
| if (pending_calls_.find(uuid) != pending_calls_.end()) { |
| LOG(ERROR) << "Low-Energy client with given UUID already registered - " |
| << "UUID: " << uuid.ToString(); |
| return false; |
| } |
| |
| const btgatt_client_interface_t* hal_iface = |
| hal::BluetoothGattInterface::Get()->GetClientHALInterface(); |
| bt_uuid_t app_uuid = uuid.GetBlueDroid(); |
| |
| if (hal_iface->register_client(&app_uuid) != BT_STATUS_SUCCESS) |
| return false; |
| |
| pending_calls_[uuid] = callback; |
| |
| return true; |
| } |
| |
| void LowEnergyClientFactory::RegisterClientCallback( |
| hal::BluetoothGattInterface* /* gatt_iface */, |
| int status, int client_if, |
| const bt_uuid_t& app_uuid) { |
| UUID uuid(app_uuid); |
| |
| VLOG(1) << __func__ << " - UUID: " << uuid.ToString(); |
| lock_guard<mutex> lock(pending_calls_lock_); |
| |
| auto iter = pending_calls_.find(uuid); |
| if (iter == pending_calls_.end()) { |
| VLOG(1) << "Ignoring callback for unknown app_id: " << uuid.ToString(); |
| return; |
| } |
| |
| // No need to construct a client if the call wasn't successful. |
| std::unique_ptr<LowEnergyClient> client; |
| BLEStatus result = BLE_STATUS_FAILURE; |
| if (status == BT_STATUS_SUCCESS) { |
| client.reset(new LowEnergyClient(uuid, client_if)); |
| result = BLE_STATUS_SUCCESS; |
| } |
| |
| // Notify the result via the success callback. |
| iter->second(result, uuid, std::move(client)); |
| |
| pending_calls_.erase(iter); |
| } |
| |
| } // namespace bluetooth |