public async Task StartAsync()
{
var listener = new TcpListener(IPAddress.Loopback, 8081);
listener.Start();
var client = await listener.AcceptTcpClientAsync();
client.Close();
listener.Stop();
ShutdownRequested?.Invoke(this, new EventArgs());
}
private bool DoShutdown(ShutdownRequestedEventArgs e, bool force = false, int exitCode = 0)
{
if (!force)
{
ShutdownRequested?.Invoke(this, e);
if (e.Cancel)
{
return(false);
}
if (_isShuttingDown)
{
throw new InvalidOperationException("Application is already shutting down.");
}
}
_exitCode = exitCode;
_isShuttingDown = true;
try
{
// When an OS shutdown request is received, try to close all non-owned windows. Windows can cancel
// shutdown by setting e.Cancel = true in the Closing event. Owned windows will be shutdown by their
// owners.
foreach (var w in Windows)
{
if (w.Owner is null)
{
w.Close();
}
}
if (!force && Windows.Count > 0)
{
e.Cancel = true;
return(false);
}
var args = new ControlledApplicationLifetimeExitEventArgs(exitCode);
Exit?.Invoke(this, args);
_exitCode = args.ApplicationExitCode;
}
finally
{
_cts?.Cancel();
_cts = null;
_isShuttingDown = false;
}
return(true);
}
private void ProcessMessage(string message, IPAddress server)
{
if (!message.StartsWith(MessageShutdown))
{
return;
}
var cluster = message.Split('|')[1];
ShutdownRequested?.Invoke(this, new ShutdownRequestedEventArgs {
Address = server, Cluster = cluster
});
}
protected override Response OnReceive(SimpleMessagePurport message)
{
switch (message)
{
case SimpleMessagePurport.ClientIsReady:
ClientReady?.Invoke();
return(new SimpleResponse(SimpleResponsePurport.Acknowledged));
case SimpleMessagePurport.ConfigurationNeeded:
return(HandleConfigurationRequest());
case SimpleMessagePurport.RequestShutdown:
ShutdownRequested?.Invoke();
return(new SimpleResponse(SimpleResponsePurport.Acknowledged));
}
return(new SimpleResponse(SimpleResponsePurport.UnknownMessage));
}
private void ActualInteractHandler(IntPtr smcConn)
{
var e = new ShutdownRequestedEventArgs();
if (_platform.Options?.EnableSessionManagement ?? false)
{
ShutdownRequested?.Invoke(this, e);
}
SMLib.SmcInteractDone(smcConn, e.Cancel);
if (e.Cancel)
{
return;
}
_saveYourselfPhase = false;
SMLib.SmcSaveYourselfDone(smcConn, true);
}
private void OnShutdownRequested(object sender, ShutdownRequestedEventArgs e)
{
ShutdownRequested?.Invoke(this, e);
if (e.Cancel)
{
return;
}
// When an OS shutdown request is received, try to close all non-owned windows. Windows can cancel
// shutdown by setting e.Cancel = true in the Closing event. Owned windows will be shutdown by their
// owners.
foreach (var w in Windows)
{
if (w.Owner is null)
{
w.Close();
}
}
if (Windows.Count > 0)
{
e.Cancel = true;
}
}
private void ShutDownRequsted()
{
ShutdownRequested?.Invoke(this, EventArgs.Empty);
}
private static void OnShutdownRequested()
{
ShutdownRequested?.Invoke(null, EventArgs.Empty);
}
protected void OnShutdownRequested(bool force)
{
ShutdownRequested?.Invoke(this, force);
}