/// <summary>
/// The function called when a client connects to the named pipe.
/// </summary>
/// <param name="iAsyncResult"></param>
private void NamedPipeServerConnectionCallback(IAsyncResult iAsyncResult)
{
try
{
// End waiting for the connection
_namedPipeServerStream.EndWaitForConnection(_namedPipeAsyncResult);
// Read data and prevent access to _namedPipeXmlPayload during threaded operations
lock (_namedPiperServerThreadLock)
{
// Read data from client
var xmlSerializer = new XmlSerializer(typeof(NamedPipeXmlPayload));
_namedPipeXmlPayload = (NamedPipeXmlPayload)xmlSerializer.Deserialize(_namedPipeServerStream);
// Need to signal quit?
if (_namedPipeXmlPayload.SignalQuit)
{
_eventShutdownRequested.Set();
return;
}
// Flag that there is new options data available. It will be applied on timer event
// when the tools menus are NOT open
_eventNewOptionsAvailable.Set();
}
}
catch (ObjectDisposedException)
{
// EndWaitForConnection will exception when someone calls .Close() before a connection received
// In that case we dont create any more pipes and just return
// This will happen when app is closing and our pipe is closed
return;
}
catch (Exception)
{
// ignored
}
finally
{
// Close the original server (we have to create a new one each time)
if (_namedPipeServerStream != null)
{
_namedPipeServerStream.Dispose();
_namedPipeServerStream = null;
}
_namedPipeAsyncResult = null;
}
// Create a new pipe for next connection
NamedPipeServerCreateServer();
}
/// <summary>
/// Uses a named pipe to send the currently parsed options to an already running instance.
/// </summary>
/// <param name="namedPipePayload"></param>
private void NamedPipeClientSendOptions(NamedPipeXmlPayload namedPipePayload)
{
//List<string> arguments = Environment.GetCommandLineArgs().ToList();
try
{
using (var namedPipeClientStream = new NamedPipeClientStream(".", PipeName, PipeDirection.Out))
{
namedPipeClientStream.Connect(3000); // Maximum wait 3 seconds
var xmlSerializer = new XmlSerializer(typeof(NamedPipeXmlPayload));
xmlSerializer.Serialize(namedPipeClientStream, namedPipePayload);
}
}
catch (Exception)
{
// Error connecting or sending
}
}
/// <summary>
/// Processes command line options and options.xml
/// </summary>
/// <returns></returns>
private bool OptionsReadCommandLineAndOptionsFile()
{
string[] arguments = Environment.GetCommandLineArgs();
string optionsFilename = string.Empty;
if (arguments.Length >= 2)
{
string arg = arguments[1].ToUpper();
if (arg == "/?" || arg == "?")
{
var usage = @"AutoIt.OSD.Background [/Close] | [Options.xml]";
MessageBox.Show(usage, Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
return(false);
}
if (arg == "/CLOSE" || arg == "CLOSE")
{
// If we are not the first instance, send a quit message along the pipe
if (!IsApplicationFirstInstance())
{
//KillPreviousInstance();
var namedPipeXmlPayload = new NamedPipeXmlPayload
{
SignalQuit = true
};
NamedPipeClientSendOptions(namedPipeXmlPayload);
}
return(false);
}
// Get the options filename
optionsFilename = arguments[1];
}
// If no filename specified, use options.xml in current folder
if (arguments.Length == 1)
{
optionsFilename = _appPath + @"\Options.xml";
}
try
{
var deSerializer = new XmlSerializer(typeof(Options));
TextReader reader = new StreamReader(optionsFilename);
_options = (Options)deSerializer.Deserialize(reader);
_options.SanityCheck();
}
catch (Exception e)
{
string message = Resources.UnableToParseXml;
if (e.InnerException != null)
{
message += "\n\n" + e.InnerException.Message;
}
MessageBox.Show(message, Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
// Additional parsing of some string values in useful fields
if (!OptionsXmlOptionsObjectToFields(_options))
{
return(false);
}
// If are not the first instance then send a message to the running app with the new options and then quit
if (!IsApplicationFirstInstance())
{
var namedPipeXmlPayload = new NamedPipeXmlPayload
{
SignalQuit = false,
OsdBackgroundDir = _osdBackgroundDir,
OsdBackgroundWorkingDir = Directory.GetCurrentDirectory(),
Options = _options
};
NamedPipeClientSendOptions(namedPipeXmlPayload);
return(false);
}
return(true);
}
