mirror of
https://github.com/kidfromjupiter/nearby.git
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101 lines
3.6 KiB
C++
101 lines
3.6 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 "platform/public/bluetooth_classic.h"
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#include "platform/public/logging.h"
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#include "platform/public/mutex_lock.h"
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namespace location {
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namespace nearby {
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BluetoothClassicMedium::~BluetoothClassicMedium() { StopDiscovery(); }
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BluetoothSocket BluetoothClassicMedium::ConnectToService(
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BluetoothDevice& remote_device, const std::string& service_uuid,
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CancellationFlag* cancellation_flag) {
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NEARBY_LOG(INFO,
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"BluetoothClassicMedium::ConnectToService: device=%p [impl=%p]",
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&remote_device, &remote_device.GetImpl());
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return BluetoothSocket(impl_->ConnectToService(
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remote_device.GetImpl(), service_uuid, cancellation_flag));
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}
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bool BluetoothClassicMedium::StartDiscovery(DiscoveryCallback callback) {
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{
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MutexLock lock(&mutex_);
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if (discovery_enabled_) {
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NEARBY_LOG(INFO, "BT Discovery already enabled; impl=%p", &GetImpl());
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return false;
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}
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discovery_callback_ = std::move(callback);
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devices_.clear();
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discovery_enabled_ = true;
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NEARBY_LOG(INFO, "BT Discovery enabled; impl=%p", &GetImpl());
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}
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return impl_->StartDiscovery({
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.device_discovered_cb =
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[this](api::BluetoothDevice& device) {
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MutexLock lock(&mutex_);
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auto pair = devices_.emplace(
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&device, absl::make_unique<DeviceDiscoveryInfo>());
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auto& context = *pair.first->second;
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if (!pair.second) {
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NEARBY_LOG(INFO, "Adding (again) device=%p, impl=%p",
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&context.device, &device);
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return;
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}
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context.device = BluetoothDevice(&device);
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NEARBY_LOG(INFO, "Adding device=%p, impl=%p", &context.device,
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&device);
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if (!discovery_enabled_) return;
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discovery_callback_.device_discovered_cb(context.device);
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},
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.device_name_changed_cb =
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[this](api::BluetoothDevice& device) {
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MutexLock lock(&mutex_);
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auto& context = *devices_[&device];
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NEARBY_LOG(INFO, "Renaming device=%p, impl=%p", &context.device,
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&device);
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if (!discovery_enabled_) return;
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discovery_callback_.device_name_changed_cb(context.device);
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},
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.device_lost_cb =
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[this](api::BluetoothDevice& device) {
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MutexLock lock(&mutex_);
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auto item = devices_.extract(&device);
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auto& context = *item.mapped();
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NEARBY_LOG(INFO, "Removing device=%p, impl=%p", &context.device,
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&device);
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if (!discovery_enabled_) return;
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discovery_callback_.device_lost_cb(context.device);
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},
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});
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}
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bool BluetoothClassicMedium::StopDiscovery() {
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{
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MutexLock lock(&mutex_);
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if (!discovery_enabled_) return true;
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discovery_enabled_ = false;
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discovery_callback_ = {};
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devices_.clear();
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NEARBY_LOG(INFO, "BT Discovery disabled: impl=%p", &GetImpl());
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}
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return impl_->StopDiscovery();
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}
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} // namespace nearby
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} // namespace location
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