boost asio serial_port読み書きシリアルポート

#include <iostream>
#include <boost/asio.hpp>
#include <boost/bind.hpp>

using namespace std;

int main(int argc, char* argv[])
{
	try
	{
		boost::asio::io_service io;
		boost::asio::serial_port sp(io, "COM1");

		sp.set_option(boost::asio::serial_port::baud_rate(38400));
		sp.set_option(boost::asio::serial_port::flow_control());
		sp.set_option(boost::asio::serial_port::parity());
		sp.set_option(boost::asio::serial_port::stop_bits());
		sp.set_option(boost::asio::serial_port::character_size(8));

		boost::asio::write(sp, boost::asio::buffer("
", 1));

		char buf[101];
		boost::system::error_code err;
		while (true)
		{
			size_t ret = sp.read_some(boost::asio::buffer(buf, 100), err);
			if (err)
			{
				cout << "read_some Error: " << err.message() << endl;
				break;
			}
			else
			{
				buf[ret] = '\0';
				cout << buf;
			}
		}

		io.run();
	}
	catch (exception& err)
	{
		cout << "Exception Error: " << err.what() << endl;
	}


	getchar();
	return 0;
}

boost::asio::deadline_timer timer(io);
timer.expires_from_now(boost::posix_time::millisec(60000));
timer.async_wait(boost::bind(&boost::asio::serial_port::cancel,  &sp));