123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117 |
- // Copyright 2018 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef DEVICE_BLUETOOTH_BLUETOOTH_GATT_DISCOVERER_WINRT_H_
- #define DEVICE_BLUETOOTH_BLUETOOTH_GATT_DISCOVERER_WINRT_H_
- #include <windows.devices.bluetooth.genericattributeprofile.h>
- #include <windows.devices.bluetooth.h>
- #include <wrl/client.h>
- #include <stdint.h>
- #include <memory>
- #include <vector>
- #include "base/callback.h"
- #include "base/containers/flat_map.h"
- #include "base/memory/weak_ptr.h"
- #include "base/threading/thread_checker.h"
- #include "device/bluetooth/bluetooth_device.h"
- #include "device/bluetooth/bluetooth_export.h"
- #include "device/bluetooth/public/cpp/bluetooth_uuid.h"
- #include "third_party/abseil-cpp/absl/types/optional.h"
- namespace device {
- // This class is responsible for discovering and enumerating GATT attributes on
- // the provided BluetoothLEDevice. Callers are expected to instantiate the class
- // and invoke StartGattDiscovery(). Once the discovery completes, the passed-in
- // GattDiscoveryCallback is invoked, and discovered GATT attributes can be
- // obtained by invoking the appropriate getters.
- class DEVICE_BLUETOOTH_EXPORT BluetoothGattDiscovererWinrt {
- public:
- using GattDiscoveryCallback = base::OnceCallback<void(bool)>;
- using GattServiceList = std::vector<
- Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
- GenericAttributeProfile::IGattDeviceService>>;
- using GattCharacteristicList = std::vector<
- Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
- GenericAttributeProfile::IGattCharacteristic>>;
- using GattDescriptorList = std::vector<
- Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
- GenericAttributeProfile::IGattDescriptor>>;
- BluetoothGattDiscovererWinrt(
- Microsoft::WRL::ComPtr<
- ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice> ble_device,
- absl::optional<BluetoothUUID> service_uuid);
- BluetoothGattDiscovererWinrt(const BluetoothGattDiscovererWinrt&) = delete;
- BluetoothGattDiscovererWinrt& operator=(const BluetoothGattDiscovererWinrt&) =
- delete;
- ~BluetoothGattDiscovererWinrt();
- // Note: In order to avoid running |callback| multiple times on errors,
- // clients are expected to synchronously destroy the GattDiscoverer after
- // |callback| has been invoked for the first time.
- void StartGattDiscovery(GattDiscoveryCallback callback);
- const GattServiceList& GetGattServices() const;
- const GattCharacteristicList* GetCharacteristics(
- uint16_t service_attribute_handle) const;
- const GattDescriptorList* GetDescriptors(
- uint16_t characteristic_attribute_handle) const;
- private:
- void OnGetGattServices(
- Microsoft::WRL::ComPtr<
- ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
- IGattDeviceServicesResult> services_result);
- void OnServiceOpen(
- Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
- GenericAttributeProfile::IGattDeviceService3>
- gatt_service_3,
- uint16_t service_attribute_handle,
- ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::GattOpenStatus
- status);
- void OnGetCharacteristics(
- uint16_t service_attribute_handle,
- Microsoft::WRL::ComPtr<
- ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
- IGattCharacteristicsResult> characteristics_result);
- void OnGetDescriptors(
- uint16_t characteristic_attribute_handle,
- Microsoft::WRL::ComPtr<
- ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
- IGattDescriptorsResult> descriptors_result);
- void RunCallbackIfDone();
- Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice>
- ble_device_;
- GattDiscoveryCallback callback_;
- GattServiceList gatt_services_;
- base::flat_map<uint16_t, GattCharacteristicList>
- service_to_characteristics_map_;
- base::flat_map<uint16_t, GattDescriptorList>
- characteristic_to_descriptors_map_;
- absl::optional<BluetoothUUID> service_uuid_;
- size_t num_services_ = 0;
- size_t num_characteristics_ = 0;
- THREAD_CHECKER(thread_checker_);
- // Note: This should remain the last member so it'll be destroyed and
- // invalidate its weak pointers before any other members are destroyed.
- base::WeakPtrFactory<BluetoothGattDiscovererWinrt> weak_ptr_factory_{this};
- };
- } // namespace device
- #endif // DEVICE_BLUETOOTH_BLUETOOTH_GATT_DISCOVERER_WINRT_H_
|