mirror of
https://github.com/kidfromjupiter/nearby.git
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135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
// Copyright 2020 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 "internal/platform/implementation/g3/bluetooth_adapter.h"
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#include <cstdint>
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#include <string>
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#include <utility>
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#include "absl/strings/string_view.h"
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#include "absl/synchronization/mutex.h"
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#include "internal/platform/implementation/ble.h"
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#include "internal/platform/implementation/bluetooth_classic.h"
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#include "internal/platform/mac_address.h"
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#include "internal/platform/medium_environment.h"
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#include "internal/platform/prng.h"
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namespace nearby {
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namespace g3 {
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namespace {
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constexpr std::uint64_t kMacAddressMask = 0x0000FFFFFFFFFFFF;
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}
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BluetoothDevice::BluetoothDevice(BluetoothAdapter* adapter)
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: adapter_(*adapter) {}
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std::string BluetoothDevice::GetName() const { return adapter_.GetName(); }
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std::string BluetoothDevice::GetMacAddress() const {
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return GetAddress().ToString();
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}
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MacAddress BluetoothDevice::GetAddress() const { return adapter_.GetAddress(); }
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BluetoothAdapter::BluetoothAdapter() {
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std::uint64_t raw_mac_addr = Prng().NextInt64() & kMacAddressMask;
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MacAddress mac_address;
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if (MacAddress::FromUint64(raw_mac_addr, mac_address) &&
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mac_address.IsSet()) {
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SetMacAddress(mac_address);
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}
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unique_id_ = raw_mac_addr;
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}
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BluetoothAdapter::~BluetoothAdapter() { SetStatus(Status::kDisabled); }
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void BluetoothAdapter::SetBluetoothClassicMedium(
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api::BluetoothClassicMedium* medium) {
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bluetooth_classic_medium_ = medium;
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}
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void BluetoothAdapter::SetBleMedium(api::ble::BleMedium* medium) {
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ble_medium_ = medium;
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}
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bool BluetoothAdapter::SetStatus(Status status) {
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BluetoothAdapter::ScanMode mode;
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bool enabled = status == Status::kEnabled;
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std::string name;
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{
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absl::MutexLock lock(mutex_);
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enabled_ = enabled;
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name = name_;
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mode = mode_;
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}
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auto& env = MediumEnvironment::Instance();
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env.OnBluetoothAdapterChangedState(*this, device_, name, enabled, mode);
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return true;
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}
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bool BluetoothAdapter::IsEnabled() const {
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absl::MutexLock lock(mutex_);
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return enabled_;
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}
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BluetoothAdapter::ScanMode BluetoothAdapter::GetScanMode() const {
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absl::MutexLock lock(mutex_);
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return mode_;
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}
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bool BluetoothAdapter::SetScanMode(BluetoothAdapter::ScanMode mode) {
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bool enabled;
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std::string name;
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{
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absl::MutexLock lock(mutex_);
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mode_ = mode;
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name = name_;
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enabled = enabled_;
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}
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auto& env = MediumEnvironment::Instance();
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env.OnBluetoothAdapterChangedState(*this, device_, std::move(name), enabled,
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mode);
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return true;
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}
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std::string BluetoothAdapter::GetName() const {
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absl::MutexLock lock(mutex_);
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return name_;
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}
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bool BluetoothAdapter::SetName(absl::string_view name) {
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return SetName(name,
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/* persist= */ true);
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}
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bool BluetoothAdapter::SetName(absl::string_view name,
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bool persist /*unused*/) {
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BluetoothAdapter::ScanMode mode;
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bool enabled;
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{
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absl::MutexLock lock(mutex_);
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name_ = std::string(name);
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enabled = enabled_;
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mode = mode_;
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}
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auto& env = MediumEnvironment::Instance();
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env.OnBluetoothAdapterChangedState(*this, device_, std::string(name), enabled,
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mode);
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return true;
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}
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} // namespace g3
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} // namespace nearby
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