utils/dnp3_src/cpp/libs/src/asiodnp3/TCPClientIOHandler.h - master - tisit/OpenPLC_v3

utils/dnp3_src/cpp/libs/src/asiodnp3/TCPClientIOHandler.h
87 строк3 KB
thiagoralves
First commit. OpenPLC v3 beta 1
14 июн 2018, 20:43
14 июн 2018, 20:431b10e97
/*
* Licensed to Green Energy Corp (www.greenenergycorp.com) under one or
* more contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright ownership.
* Green Energy Corp licenses this file to you 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.
*
* This project was forked on 01/01/2013 by Automatak, LLC and modifications
* may have been made to this file. Automatak, LLC licenses these modifications
* to you under the terms of the License.
*/
#ifndef ASIOPAL_TCPCLIENTIOHANDLER_H
#define ASIOPAL_TCPCLIENTIOHANDLER_H

#include "asiodnp3/IOHandler.h"

#include "asiopal/ChannelRetry.h"
#include "asiopal/IPEndpoint.h"
#include "asiopal/TCPClient.h"

#include "openpal/executor/TimerRef.h"

namespace asiodnp3
{

class TCPClientIOHandler final : public IOHandler
{

public:

	static std::shared_ptr<TCPClientIOHandler> Create(
	    const openpal::Logger& logger,
	    const std::shared_ptr<IChannelListener>& listener,
	    const std::shared_ptr<asiopal::Executor>& executor,
	    const asiopal::ChannelRetry& retry,
	    const asiopal::IPEndpoint& remote,
	    const std::string& adapter)
	{
		return std::make_shared<TCPClientIOHandler>(logger, listener, executor, retry, remote, adapter);
	}

	TCPClientIOHandler(
	    const openpal::Logger& logger,
	    const std::shared_ptr<IChannelListener>& listener,
	    const std::shared_ptr<asiopal::Executor>& executor,
	    const asiopal::ChannelRetry& retry,
	    const asiopal::IPEndpoint& remote,
	    const std::string& adapter
	);

protected:

	virtual void ShutdownImpl() override;
	virtual void BeginChannelAccept() override;
	virtual void SuspendChannelAccept() override;
	virtual void OnChannelShutdown() override;

private:

	void StartConnect(const std::shared_ptr<asiopal::TCPClient>& client, const openpal::TimeDuration& delay);

	void ResetState();

	const std::shared_ptr<asiopal::Executor> executor;
	const asiopal::ChannelRetry retry;
	const asiopal::IPEndpoint remote;
	const std::string adapter;

	// current value of the client
	std::shared_ptr<asiopal::TCPClient> client;

	// connection retry timer
	openpal::TimerRef retrytimer;
};

}

#endif