Function main

examples/serial_stream_read_write.cpp:17–160

* @brief This example demonstrates multiple methods to read and write * serial stream data utilizing std::iostream functionality. */

 *        serial stream data utilizing std::iostream functionality.
 */
int main()
{
    using namespace LibSerial ;
    // Instantiate two SerialStream objects.
    SerialStream serial_stream_1 ;
    SerialStream serial_stream_2 ;

    // Open the Serial Ports at the desired hardware devices.
    serial_stream_1.Open("/dev/ttyUSB0") ;
    serial_stream_2.Open("/dev/ttyUSB1") ;

    // Verify that the serial ports opened.
    if (!serial_stream_1.IsOpen() ||
        !serial_stream_2.IsOpen())
    {
        std::cerr << "The serial ports did not open correctly." << std::endl ;
        return EXIT_FAILURE ;
    }

    // Set the baud rates.
    serial_stream_1.SetBaudRate(BaudRate::BAUD_115200) ;
    serial_stream_2.SetBaudRate(BaudRate::BAUD_115200) ;

    // Set the number of data bits.
    serial_stream_1.SetCharacterSize(CharacterSize::CHAR_SIZE_8) ;
    serial_stream_2.SetCharacterSize(CharacterSize::CHAR_SIZE_8) ;

    // Turn off hardware flow control.
    serial_stream_1.SetFlowControl(FlowControl::FLOW_CONTROL_NONE) ;
    serial_stream_2.SetFlowControl(FlowControl::FLOW_CONTROL_NONE) ;

    // Disable parity.
    serial_stream_1.SetParity(Parity::PARITY_NONE) ;
    serial_stream_2.SetParity(Parity::PARITY_NONE) ;
    
    // Set the number of stop bits.
    serial_stream_1.SetStopBits(StopBits::STOP_BITS_1) ;
    serial_stream_2.SetStopBits(StopBits::STOP_BITS_1) ;

    // Variables to store outgoing and incoming data.
    std::string write_string_1 = "\"Do what you can, with what you have, where you are.\" - Theodore Roosevelt" ;
    std::string write_string_2 = "\"Simplicity is prerequisite for reliability.\" - Edsger W. Dijkstra" ;

    std::string read_string_1 = "" ;
    std::string read_string_2 = "" ;

    // Print to the terminal what will take place next.
    std::cout << "\nUsing write() and read() for a specified number of "
              << "bytes of data:" << std::endl ;

    // Write a specified number of bytes of data.
    serial_stream_1.write(write_string_1.c_str(), write_string_1.size()) ;
    serial_stream_2.write(write_string_2.c_str(), write_string_2.size()) ;

    // Wait until the data has actually been transmitted.
    serial_stream_1.DrainWriteBuffer() ;
    serial_stream_2.DrainWriteBuffer() ;