| /* |
| * Copyright 2021 The Android Open Source Project |
| * |
| * 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 |
| * |
| * http://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. |
| */ |
| |
| #pragma once |
| |
| #include <unordered_map> |
| #include "types/raw_address.h" |
| |
| namespace bluetooth { |
| namespace shim { |
| using CallbackLegacy = |
| std::function<bool(const RawAddress& address, const int id)>; |
| /** |
| * Initialize the allocator |
| * |
| * @param paired_device_map map from mac_address to id already saved |
| * in the disk before init |
| * @param save_id_callback a callback that will be called after successfully |
| * saving id for a paired device |
| * @param forget_device_callback a callback that will be called after |
| * successful id deletion for forgotten device, |
| * @return true if successfully initialized |
| */ |
| bool InitMetricIdAllocator( |
| const std::unordered_map<RawAddress, int>& paired_device_map, |
| CallbackLegacy save_id_callback, CallbackLegacy forget_device_callback); |
| |
| /** |
| * Close the allocator. should be called when Bluetooth process is killed |
| * |
| * @return true if successfully close |
| */ |
| bool CloseMetricIdAllocator(); |
| |
| /** |
| * Check if no id saved in memory |
| * |
| * @return true if no id is saved |
| */ |
| bool IsEmptyMetricIdAllocator(); |
| |
| /** |
| * Allocate an id for a scanned device, or return the id if there is already |
| * one |
| * |
| * @param raw_address mac address of Bluetooth device |
| * @return the id of device |
| */ |
| int AllocateIdFromMetricIdAllocator(const RawAddress& raw_address); |
| |
| /** |
| * Save the id for a paired device |
| * |
| * @param raw_address mac address of Bluetooth device |
| * @return true if save successfully |
| */ |
| bool SaveDeviceOnMetricIdAllocator(const RawAddress& raw_address); |
| |
| /** |
| * Delete the id for a device to be forgotten |
| * |
| * @param raw_address mac address of Bluetooth device |
| */ |
| void ForgetDeviceFromMetricIdAllocator(const RawAddress& raw_address); |
| |
| /** |
| * Check if an id is valid. |
| * The id should be less than or equal to kMaxId and bigger than or equal to |
| * kMinId |
| * |
| * @param mac_address mac address of Bluetooth device |
| * @return true if delete successfully |
| */ |
| bool IsValidIdFromMetricIdAllocator(const int id); |
| |
| } // namespace shim |
| } // namespace bluetooth |