// Copyright (c) Facebook, Inc. and its affiliates. // // 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 <folly/io/async/EventBase.h> #include "rsocket/statemachine/RSocketStateMachine.h" namespace rsocket { class KeepaliveTimer { public: KeepaliveTimer(std::chrono::milliseconds period, folly::EventBase& eventBase); ~KeepaliveTimer(); std::chrono::milliseconds keepaliveTime() const; void schedule(); void stop(); void start(const std::shared_ptr<FrameSink>& connection); void sendKeepalive(FrameSink& sink); void keepaliveReceived(); private: std::shared_ptr<FrameSink> connection_; folly::EventBase& eventBase_; const std::shared_ptr<uint32_t> generation_; const std::chrono::milliseconds period_; std::atomic<bool> pending_{false}; }; } // namespace rsocket