mirror of https://github.com/f1xpl/openauto.git
102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
/*
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* This file is part of openauto project.
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* Copyright (C) 2018 f1x.studio (Michal Szwaj)
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*
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* openauto is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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* openauto is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with openauto. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <f1x/openauto/autoapp/Service/Pinger.hpp>
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namespace f1x
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{
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namespace openauto
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{
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namespace autoapp
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{
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namespace service
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{
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Pinger::Pinger(boost::asio::io_service& ioService, time_t duration)
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: strand_(ioService)
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, timer_(ioService)
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, duration_(duration)
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, cancelled_(false)
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, pingsCount_(0)
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, pongsCount_(0)
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{
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}
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void Pinger::ping(Promise::Pointer promise)
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{
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strand_.dispatch([this, self = this->shared_from_this(), promise = std::move(promise)]() mutable {
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cancelled_ = false;
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if(promise_ != nullptr)
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{
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promise_->reject(aasdk::error::Error(aasdk::error::ErrorCode::OPERATION_IN_PROGRESS));
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}
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else
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{
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++pingsCount_;
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promise_ = std::move(promise);
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timer_.expires_from_now(boost::posix_time::milliseconds(duration_));
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timer_.async_wait(strand_.wrap(std::bind(&Pinger::onTimerExceeded, this->shared_from_this(), std::placeholders::_1)));
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}
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});
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}
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void Pinger::pong()
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{
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strand_.dispatch([this, self = this->shared_from_this()]() {
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++pongsCount_;
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});
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}
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void Pinger::onTimerExceeded(const boost::system::error_code& error)
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{
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if(promise_ == nullptr)
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{
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return;
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}
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else if(error == boost::asio::error::operation_aborted || cancelled_)
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{
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promise_->reject(aasdk::error::Error(aasdk::error::ErrorCode::OPERATION_ABORTED));
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}
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else if(pingsCount_ - pongsCount_ > 1)
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{
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promise_->reject(aasdk::error::Error());
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}
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else
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{
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promise_->resolve();
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}
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promise_.reset();
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}
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void Pinger::cancel()
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{
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strand_.dispatch([this, self = this->shared_from_this()]() {
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cancelled_ = true;
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timer_.cancel();
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});
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}
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}
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}
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}
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}
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