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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
#include <boost/asio.hpp>
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/** This code requires 'boost' to be successfully installed and when compiled will require the boost libaries to be included.
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The original code source as of this writting was found here:
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http://www.webalice.it/fede.tft/serial_port/serial_port.html
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*/
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class SimpleSerial
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{
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public:
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/**
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* Constructor.
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* \param port device name, example "/dev/ttyUSB0" or "COM4"
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* \param baud_rate communication speed, example 9600 or 115200
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* \throws boost::system::system_error if cannot open the
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* serial device
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*/
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SimpleSerial(std::string port, unsigned int baud_rate)
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: io(), serial(io,port)
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{
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serial.set_option(boost::asio::serial_port_base::baud_rate(baud_rate));
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}
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/**
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* Write a string to the serial device.
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* \param s string to write
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* \throws boost::system::system_error on failure
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*/
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void writeString(std::string s)
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{
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boost::asio::write(serial,boost::asio::buffer(s.c_str(),s.size()));
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}
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/**
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* Blocks until a line is received from the serial device. A line is denoted by a final '\n' character
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* Eventual '\n' or '\r\n' characters at the end of the string are removed.
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* \return a string containing the received line
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* \throws boost::system::system_error on failure
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*/
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std::string readLine()
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{
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//Reading data char by char, code is optimized for simplicity, not speed
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using namespace boost;
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char c;
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std::string result;
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for(;;)
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{
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asio::read(serial,asio::buffer(&c,1));
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switch(c)
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{
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case '\r':
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break;
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case '\n':
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return result;
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default:
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result+=c;
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}
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}
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}
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private:
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boost::asio::io_service io;
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boost::asio::serial_port serial;
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}; |