internal string ExecCommand(string command, int responseTimeout, string errorMessage)
{
lock (_execCommandLock)
{
try
{
Port.DiscardOutBuffer();
Port.DiscardInBuffer();
ReceiveNow.Reset();
//Port.Write(command + "\r");
Port.WriteLine(command);
string input = ReadResponse(Port, responseTimeout);
if ((input.Length == 0) || ((!input.EndsWith("\r\n> ")) && (!input.EndsWith("\r\nOK\r\n"))))
{
throw new ApplicationException("No success message was received.");
}
return(input);
}
catch
{
throw;
}
}
}
private string ReadResponse(SerialPort port, int timeout)
{
string buffer = string.Empty;
try
{
do
{
if (ReceiveNow.WaitOne(timeout, false))
{
string t = port.ReadExisting();
buffer += t;
}
else
{
if (buffer.Length > 0)
{
throw new ApplicationException("Response received is incomplete.");
}
else
{
throw new ApplicationException("No data received from phone.");
}
}
}while (!buffer.EndsWith("\r\nOK\r\n") && !buffer.EndsWith("\r\n> ") && !buffer.EndsWith("\r\nERROR\r\n"));
}
catch
{
throw;
}
return(buffer);
}
/// <summary>
/// An event handler for receiving data from a serial port
/// </summary>
/// <param name="sender">The .NET object that sent this event</param>
/// <param name="e">Event arguments for this event</param>
private void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
try
{
if (e.EventType == SerialData.Chars)
{
ReceiveNow.Set();
}
}
catch
{
throw;
}
}
