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ensure serial port is always closed before exiting

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This commit is contained in:
Edward Wright 2019-06-04 21:42:43 -04:00
parent ad3d69ea8c
commit c1a66d192e
1 changed files with 10 additions and 5 deletions
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15
SimplySerial/SimplySerial.cs
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@ -47,7 +47,7 @@ namespace SimplySerial
}
catch (Exception e)
{
ExitProgram((e.GetType() + " occurred while attempting to open the serial port."), exitCode: -1);
ExitProgram((e.GetType() + " occurred while attempting to open the serial port " + port + "."), exitCode: -1);
}
// set up keyboard input for relay to serial port
@ -118,10 +118,6 @@ namespace SimplySerial
}
}
// the serial port should be closed by now, but we'll make sure it is anyway
if (serialPort.IsOpen)
serialPort.Close();
// the program should have ended gracefully before now - there is no good reason for us to be here!
ExitProgram("\nSession terminated unexpectedly.", exitCode: -1);
}
@ -244,6 +240,11 @@ namespace SimplySerial
// get a list of all available com ports
string[] availablePorts = SerialPort.GetPortNames();
foreach (string potentialPort in availablePorts)
{
Console.WriteLine("PORT: {0}", potentialPort);
}
// if no port was specified, default to the first/only available com port, exit with error if no ports are available
if (port == String.Empty)
{
@ -303,6 +304,10 @@ namespace SimplySerial
/// <param name="silent">Exits without displaying a message or asking for a key press when set to 'true'</param>
static void ExitProgram(string message="", int exitCode=0, bool silent=false)
{
// the serial port should be closed before exiting
if (serialPort.IsOpen)
serialPort.Close();
if (!silent)
Output("\n" + message);