/// <summary>
/// Open the connection agaist initialized hostname and port number
/// </summary>
/// <returns>Returns true if connection is established</returns>
public bool Open()
{
try
{
// Create a TcpClient.
// Note, for this client to work you need to have a TcpServer
// connected to the same address as specified by the server, port
// combination.
client = new TcpClient(_hostname, _port); //TEMP, should these be deconstructed for each time Cloes() is called?
//client.Connect(_hostname, _port); this does not seem to work (cant access removed object)
// Get a client stream for reading and writing.
stream = client.GetStream();
connectionEstablished = true;
connectionStatus = CommHandler.ConnectionStatus.Connected;
}
catch (Exception CANConnectException)
{
Console.WriteLine("Could not open CAN bus connection\n\n Exception: " + CANConnectException.ToString());
}
//return true if the port managed to open
return(IsOpen());
}
/// <summary>
/// Close the serial connection
/// </summary>
/// <returns>Returns true if the port was closed</returns>
public bool Close()
{
port.Close();
connectionEstablished = false;
connectionStatus = CommHandler.ConnectionStatus.NotConnected;
//return true if the port has closed
return(!IsOpen());
}
/// <summary>
/// Get informetion on the status of the connection
/// </summary>
/// <returns></returns>
public CommHandler.ConnectionStatus GetConnectionStatus()
{
if (connectionEstablished && IsOpen())
{
connectionStatus = CommHandler.ConnectionStatus.Connected;
}
else if (connectionEstablished && !IsOpen())
{
connectionStatus = CommHandler.ConnectionStatus.Disconnected;
}
else if (!connectionEstablished && !IsOpen())
{
connectionStatus = CommHandler.ConnectionStatus.NotConnected;
}
return(connectionStatus);
}
/// <summary>
/// Open the serial connection
/// </summary>
public bool Open()
{
try
{
port.Open();
connectionEstablished = true;
connectionStatus = CommHandler.ConnectionStatus.Connected;
}
catch (UnauthorizedAccessException e)
{
Program.errors.Add("Cannot access com port. Comport might already be in use by another application");
}
catch (IOException)
{
Program.errors.Add("Cannot open com port. Spesified port might not exist");
}
//return true if the port managed to open
return(IsOpen());
}
