//////////////////////////////////////////////////////////////////////////
// Private Methods
//
// NOTE: These private properties and methods are generally NOT
// thread-safe -- call these methods within "lock (m_lock)" or an
// equivalent.
//
/// <summary>
/// Opens the serial port, if it's not open yet.
/// </summary>
///
void OpenSerialPort()
{
// do nothing if OpenSerialPort() was already called
if (m_serialPort != null)
return;
// create and initialize <m_serialPort>
m_serialPort = new DnSerialPort(new DnSerialPortStringResources(),
m_serialPortName, 4800, Parity.None, 8, StopBits.One);
m_serialPort.DataReceived += new SerialDataReceivedEventHandler(
m_serialPort_DataReceived);
m_serialPort.ErrorReceived += new SerialErrorReceivedEventHandler(
m_serialPort_ErrorReceived);
m_serialPort.Open();
}
/// <summary>
/// Closes the serial port, if it's open.
/// </summary>
///
void CloseSerialPort()
{
if (m_serialPort != null)
{
m_serialPort.Purge();
m_serialPort.Close();
m_serialPort = null;
}
}