mirror of
https://github.com/kidfromjupiter/nearby.git
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116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "fastpair/internal/mediums/bluetooth_classic.h"
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#include <memory>
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#include <string>
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#include "absl/strings/escaping.h"
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#include "internal/platform/bluetooth_adapter.h"
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namespace nearby {
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namespace fastpair {
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BluetoothClassic::BluetoothClassic(BluetoothRadio& radio) : radio_(radio) {}
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bool BluetoothClassic::IsAvailable() const {
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MutexLock lock(&mutex_);
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return IsAvailableLocked();
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}
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bool BluetoothClassic::IsAvailableLocked() const {
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return medium_.IsValid() && adapter_.IsValid() && adapter_.IsEnabled();
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}
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void BluetoothClassic::AddObserver(BluetoothClassicMedium::Observer* observer) {
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MutexLock lock(&mutex_);
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medium_.AddObserver(observer);
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}
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void BluetoothClassic::RemoveObserver(
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BluetoothClassicMedium::Observer* observer) {
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MutexLock lock(&mutex_);
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medium_.RemoveObserver(observer);
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}
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bool BluetoothClassic::StartDiscovery() {
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MutexLock lock(&mutex_);
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if (!radio_.IsEnabled()) {
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NEARBY_LOGS(INFO) << "Can't discover BT devices because BT isn't enabled.";
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return false;
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}
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if (!IsAvailableLocked()) {
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NEARBY_LOGS(INFO)
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<< "Can't discover BT devices because BT isn't available.";
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return false;
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}
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if (!medium_.StartDiscovery({})) {
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NEARBY_LOGS(INFO) << "Failed to start discovery of BT devices.";
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return false;
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}
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// Mark the fact that we're currently performing a Bluetooth scan.
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is_scanning = true;
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return true;
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}
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bool BluetoothClassic::StopDiscovery() {
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MutexLock lock(&mutex_);
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if (!IsDiscovering()) {
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NEARBY_LOGS(INFO)
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<< "Can't stop discovery of BT devices because it never started.";
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return false;
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}
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if (!medium_.StopDiscovery()) {
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NEARBY_LOGS(INFO) << "Failed to stop discovery of Bluetooth devices.";
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return false;
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}
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is_scanning = false;
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return true;
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}
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bool BluetoothClassic::IsDiscovering() const { return is_scanning; }
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std::unique_ptr<BluetoothPairing> BluetoothClassic::CreatePairing(
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absl::string_view public_address) {
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MutexLock lock(&mutex_);
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if (!radio_.IsEnabled()) {
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NEARBY_LOGS(INFO)
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<< __func__
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<< "Can't create bluetooth pairing because Bluetooth was NOT enabled";
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return nullptr;
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}
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if (!IsAvailableLocked()) {
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NEARBY_LOGS(VERBOSE) << __func__
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<< "Can't create bluetooth pairing because "
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"BluetoothClassic isn't available.";
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return nullptr;
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}
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BluetoothDevice device = medium_.GetRemoteDevice(std::string(public_address));
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if (!device.IsValid()) {
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NEARBY_LOGS(INFO) << __func__
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<< "Can't create bluetooth pairing because Bluetooth "
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"device was NOT found";
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return nullptr;
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}
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return medium_.CreatePairing(device);
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}
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BluetoothClassicMedium& BluetoothClassic::GetMedium() { return medium_; }
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} // namespace fastpair
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} // namespace nearby
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