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nearby/internal/platform/implementation/g3/ble_v2.cc
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// Copyright 2022 Google LLC
//
// 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
//
// https://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 "internal/platform/implementation/g3/ble_v2.h"
#include <iostream>
#include <memory>
#include <string>
#include "absl/synchronization/mutex.h"
#include "internal/platform/implementation/ble_v2.h"
#include "internal/platform/implementation/shared/count_down_latch.h"
#include "internal/platform/logging.h"
#include "internal/platform/medium_environment.h"
namespace location {
namespace nearby {
namespace g3 {
namespace {
using ::location::nearby::api::ble_v2::BleAdvertisementData;
using ::location::nearby::api::ble_v2::BleSocket;
using ::location::nearby::api::ble_v2::BleSocketLifeCycleCallback;
using ::location::nearby::api::ble_v2::ClientGattConnection;
using ::location::nearby::api::ble_v2::PowerMode;
using ::location::nearby::api::ble_v2::ServerGattConnectionCallback;
std::string PowerModeToName(PowerMode power_mode) {
switch (power_mode) {
case PowerMode::kUltraLow:
return "UltraLow";
case PowerMode::kLow:
return "Low";
case PowerMode::kMedium:
return "Medium";
case PowerMode::kHigh:
return "High";
case PowerMode::kUnknown:
return "Unknown";
}
}
} // namespace
BleV2Medium::BleV2Medium(api::BluetoothAdapter& adapter)
: adapter_(static_cast<BluetoothAdapter*>(&adapter)) {
auto& env = MediumEnvironment::Instance();
env.RegisterBleV2Medium(*this);
}
BleV2Medium::~BleV2Medium() {
auto& env = MediumEnvironment::Instance();
env.UnregisterBleV2Medium(*this);
}
bool BleV2Medium::StartAdvertising(
const BleAdvertisementData& advertising_data,
const BleAdvertisementData& scan_response_data, PowerMode power_mode) {
NEARBY_LOGS(INFO)
<< "G3 Ble StartAdvertising:, advertising_data.service_uuids size="
<< advertising_data.service_uuids.size()
<< ", scan_response_data.service_data size="
<< scan_response_data.service_data.size()
<< ", power_mode=" << PowerModeToName(power_mode);
absl::MutexLock lock(&mutex_);
MediumEnvironment::Instance().UpdateBleV2MediumForAdvertising(
/*enabled=*/true, *this, adapter_->GetPeripheralV2(), scan_response_data);
return true;
}
bool BleV2Medium::StopAdvertising() {
NEARBY_LOGS(INFO) << "G3 Ble StopAdvertising";
absl::MutexLock lock(&mutex_);
advertisement_byte_ = {};
BleAdvertisementData empty_advertisement_data = {};
MediumEnvironment::Instance().UpdateBleV2MediumForAdvertising(
/*enabled=*/false, *this, /*mutable=*/adapter_->GetPeripheralV2(),
empty_advertisement_data);
return true;
}
bool BleV2Medium::StartScanning(const std::vector<std::string>& service_uuids,
PowerMode power_mode, ScanCallback callback) {
NEARBY_LOGS(INFO) << "G3 Ble StartScanning";
absl::MutexLock lock(&mutex_);
MediumEnvironment::Instance().UpdateBleV2MediumForScanning(
true, std::move(callback), *this);
return true;
}
bool BleV2Medium::StopScanning() {
NEARBY_LOGS(INFO) << "G3 Ble StopScanning";
absl::MutexLock lock(&mutex_);
MediumEnvironment::Instance().UpdateBleV2MediumForScanning(false, {}, *this);
return true;
}
std::unique_ptr<api::ble_v2::GattServer> BleV2Medium::StartGattServer(
ServerGattConnectionCallback callback) {
return std::make_unique<GattServer>();
}
bool BleV2Medium::StartListeningForIncomingBleSockets(
const api::ble_v2::ServerBleSocketLifeCycleCallback& callback) {
return false;
}
void BleV2Medium::StopListeningForIncomingBleSockets() {}
std::unique_ptr<ClientGattConnection> BleV2Medium::ConnectToGattServer(
api::ble_v2::BlePeripheral& peripheral, Mtu mtu, PowerMode power_mode,
api::ble_v2::ClientGattConnectionCallback callback) {
return nullptr;
}
std::unique_ptr<BleSocket> BleV2Medium::EstablishBleSocket(
api::ble_v2::BlePeripheral* peripheral,
const BleSocketLifeCycleCallback& callback) {
return nullptr;
}
} // namespace g3
} // namespace nearby
} // namespace location