utils/dnp3_src/cpp/libs/src/asiopal/SerialChannel.cpp - master - tisit/OpenPLC_v3

utils/dnp3_src/cpp/libs/src/asiopal/SerialChannel.cpp

75 строк2 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.
*/

#include "asiopal/SerialChannel.h"

#include "asiopal/ASIOSerialHelpers.h"


namespace asiopal
{

SerialChannel::SerialChannel(std::shared_ptr<Executor> executor) : IAsyncChannel(executor), port(executor->strand.get_io_service())
{}

bool SerialChannel::Open(const SerialSettings& settings, std::error_code& ec)
{
	port.open(settings.deviceName, ec);
	if (ec) return false;

	Configure(settings, port, ec);

	if (ec)
	{
		port.close();
		return false;
	}

	return true;
}

void SerialChannel::BeginReadImpl(openpal::WSlice buffer)
{
	auto callback = [this](const std::error_code & ec, size_t num)
	{
		this->OnReadCallback(ec, num);
	};

	port.async_read_some(asio::buffer(buffer, buffer.Size()), this->executor->strand.wrap(callback));
}

void SerialChannel::BeginWriteImpl(const openpal::RSlice& buffer)
{
	auto callback = [this](const std::error_code & ec, size_t num)
	{
		this->OnWriteCallback(ec, num);
	};

	async_write(port, asio::buffer(buffer, buffer.Size()), this->executor->strand.wrap(callback));
}

void SerialChannel::ShutdownImpl()
{
	std::error_code ec;
	port.close(ec);
}

}