| // Copyright 2022 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. |
| |
| #include "controller/device_notify_manager.h" |
| |
| #include <climits> |
| |
| namespace netsim::controller { |
| |
| unsigned int DeviceNotifyManager::Register(std::function<void(void)> callback) { |
| std::unique_lock<std::mutex> lock(mutex_); |
| if (next_available_callback_id_ == UINT_MAX) next_available_callback_id_ = 0; |
| ++next_available_callback_id_; |
| registered_callbacks_[next_available_callback_id_] = std::move(callback); |
| return next_available_callback_id_; |
| } |
| |
| void DeviceNotifyManager::Unregister(unsigned int callback_id) { |
| std::unique_lock<std::mutex> lock(mutex_); |
| registered_callbacks_.erase(callback_id); |
| } |
| |
| void DeviceNotifyManager::Notify() { |
| std::unique_lock<std::mutex> lock(mutex_); |
| for (auto &[callback_id, callback] : registered_callbacks_) callback(); |
| } |
| |
| unsigned int DeviceNotifyManager::next_available_callback_id_ = 0; |
| |
| } // namespace netsim::controller |