mirror of
https://github.com/kidfromjupiter/nearby.git
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132 lines
5.2 KiB
C++
132 lines
5.2 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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#ifndef THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_WINDOWS_BLE_GATT_SERVER_H_
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#define THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_WINDOWS_BLE_GATT_SERVER_H_
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#include <windows.h>
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#include <optional>
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#include <vector>
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#include "absl/container/flat_hash_map.h"
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#include "absl/strings/string_view.h"
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#include "internal/platform/byte_array.h"
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#include "internal/platform/implementation/ble_v2.h"
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#include "internal/platform/implementation/windows/ble_v2_peripheral.h"
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#include "internal/platform/implementation/windows/bluetooth_adapter.h"
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#include "internal/platform/uuid.h"
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#include "winrt/Windows.Devices.Bluetooth.GenericAttributeProfile.h"
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#include "winrt/Windows.Devices.Bluetooth.h"
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#include "winrt/Windows.Foundation.Collections.h"
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#include "winrt/base.h"
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namespace nearby {
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namespace windows {
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class BleGattServer : public api::ble_v2::GattServer {
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public:
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BleGattServer(api::BluetoothAdapter* adapter,
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api::ble_v2::ServerGattConnectionCallback callback);
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~BleGattServer() override = default;
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absl::optional<api::ble_v2::GattCharacteristic> CreateCharacteristic(
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const Uuid& service_uuid, const Uuid& characteristic_uuid,
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api::ble_v2::GattCharacteristic::Permission permission,
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api::ble_v2::GattCharacteristic::Property property) override;
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bool UpdateCharacteristic(
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const api::ble_v2::GattCharacteristic& characteristic,
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const nearby::ByteArray& value) override;
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absl::Status NotifyCharacteristicChanged(
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const api::ble_v2::GattCharacteristic& characteristic, bool confirm,
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const ByteArray& new_value) override;
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void Stop() override;
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bool StartAdvertisement(const ByteArray& service_data, bool is_connectable);
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bool StopAdvertisement();
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api::ble_v2::BlePeripheral& GetBlePeripheral() override {
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return peripheral_;
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}
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private:
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// Used to save native data related to the GATT characteristic.
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struct GattCharacteristicData {
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api::ble_v2::GattCharacteristic gatt_characteristic;
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ByteArray data;
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattLocalCharacteristic local_characteristic = nullptr;
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::winrt::Windows::Foundation::Collections::IVectorView<
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattSubscribedClient>
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subscribed_clients;
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::winrt::event_token read_token{};
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::winrt::event_token write_token{};
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::winrt::event_token subscribed_clients_changed_token{};
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};
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bool InitializeGattServer();
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void NotifyValueChanged(
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const api::ble_v2::GattCharacteristic& gatt_characteristic);
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GattCharacteristicData* FindGattCharacteristicData(
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const ::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattLocalCharacteristic& gatt_local_characteristic);
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GattCharacteristicData* FindGattCharacteristicData(
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const api::ble_v2::GattCharacteristic& gatt_characteristic);
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::winrt::fire_and_forget Characteristic_ReadRequestedAsync(
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattLocalCharacteristic const& gatt_local_characteristic,
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattReadRequestedEventArgs args);
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::winrt::fire_and_forget Characteristic_WriteRequestedAsync(
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattLocalCharacteristic const& gatt_local_characteristic,
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattWriteRequestedEventArgs args);
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void Characteristic_SubscribedClientsChanged(
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattLocalCharacteristic const& gatt_local_characteristic,
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::winrt::Windows::Foundation::IInspectable const& args);
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void ServiceProvider_AdvertisementStatusChanged(
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattServiceProvider const& sender,
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattServiceProviderAdvertisementStatusChangedEventArgs const& args);
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BluetoothAdapter* adapter_ = nullptr;
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BleV2Peripheral peripheral_;
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::winrt::Windows::Devices::Bluetooth::GenericAttributeProfile::
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GattServiceProvider gatt_service_provider_ = nullptr;
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Uuid service_uuid_;
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std::vector<GattCharacteristicData> gatt_characteristic_datas_;
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api::ble_v2::ServerGattConnectionCallback gatt_connection_callback_{};
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::winrt::event_token service_provider_advertisement_changed_token_{};
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bool is_advertising_ = false;
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bool is_gatt_server_inited_ = false;
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};
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} // namespace windows
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_WINDOWS_BLE_GATT_SERVER_H_
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