boost串口操作

1.io_server在run后会阻塞，因此要开辟线程进行操作。当然也可以用run_once来做同步串口操作。

void CSarialDlg::OnBnClickedOk()
{
	// 这里的m_fun是成员变量
	//boost::shared_ptr<boost::thread> m_fun;
	m_fun = boost::shared_ptr<boost::thread>(new boost::thread(boost::bind(&CSarialDlg::ThreadFun,this)));
}

2.线程中设置串口参数，开始读取

void CSarialDlg::ThreadFun()
{
	try
	{
		m_sp = boost::shared_ptr<boost::asio::serial_port>(new boost::asio::serial_port(io, “com1”));
		m_sp->set_option(boost::asio::serial_port::baud_rate(115200));
		m_sp->set_option(boost::asio::serial_port::flow_control());
		m_sp->set_option(boost::asio::serial_port::parity(boost::asio::serial_port::parity::none));
		m_sp->set_option(boost::asio::serial_port::stop_bits(boost::asio::serial_port::stop_bits::one));
		m_sp->set_option(boost::asio::serial_port::character_size(8));

		boost::system::error_code err;
		char buf[256]={0};
		while (true)
		{
			m_sp->async_read_some(boost::asio::buffer(buf, 255),boost::bind(&CSarialDlg::handle_read,this,buf, _1, _2));
			char szBuff[] = "write something";
			int nLen = strlen(szBuff);
			boost::asio::write(*m_sp.get(), boost::asio::buffer(szBuff,nLen));
			io.run();
		}
	}
	catch (std::exception& err)
	{
		//cout << "Exception Error: " << err.what() << endl;
	}
}

void CSarialDlg::handle_read(char *buf,boost::system::error_code ec,std::size_t bytes_transferred)
{
	if(!ec)
	{
	}
	memset(buf,0,100);
	m_sp->async_read_some(boost::asio::buffer(buf, 100), boost::bind(&CSarialDlg::handle_read,this,buf, _1, _2));
}

3.成员变量

boost::shared_ptr<boost::thread> m_fun;
bool m_isExitThread;
boost::asio::io_service io;
boost::shared_ptr<boost::asio::serial_port> m_sp;