public ShutdownSafetyStates DoTransition()
{
// only attemt to transition if the last step is _interval in the past
if (DateTime.Now - _lastStep < _interval)
{
// nope, too soon.
Debug.WriteLine("Too soon", this.ToString());
return(CurrentState);
}
switch (_state)
{
case ShutdownSafetyStates.NotSafe:
if (checkRules())
{
Debug.WriteLine("leaving notsafe", this.ToString());
_state = ShutdownSafetyStates.Checked;
}
break;
case ShutdownSafetyStates.Checked:
if (checkRulesAgain())
{
Debug.WriteLine("leaving checked", this.ToString());
_state = ShutdownSafetyStates.Safe;
}
else
{
Debug.WriteLine("something came up, back to unsafe", this.ToString());
_state = ShutdownSafetyStates.NotSafe;
}
break;
case ShutdownSafetyStates.Safe:
WaitAndShutdown();
break;
case ShutdownSafetyStates.Final:
break;
default:
break;
}
_lastStep = DateTime.Now;
return(CurrentState);
}
public ShutdownSafetyStates DoTransition()
{
// only attemt to transition if the last step is _interval in the past
if (DateTime.Now - _lastStep < _interval)
{
// nope, too soon.
Debug.WriteLine("Too soon", this.ToString());
return CurrentState;
}
switch (_state)
{
case ShutdownSafetyStates.NotSafe:
if (checkRules())
{
Debug.WriteLine("leaving notsafe", this.ToString());
_state = ShutdownSafetyStates.Checked;
}
break;
case ShutdownSafetyStates.Checked:
if (checkRulesAgain())
{
Debug.WriteLine("leaving checked", this.ToString());
_state = ShutdownSafetyStates.Safe;
}
else
{
Debug.WriteLine("something came up, back to unsafe", this.ToString());
_state = ShutdownSafetyStates.NotSafe;
}
break;
case ShutdownSafetyStates.Safe:
WaitAndShutdown();
break;
case ShutdownSafetyStates.Final:
break;
default:
break;
}
_lastStep = DateTime.Now;
return CurrentState;
}
private async void WaitAndShutdown()
{
foreach (var rule in _rules)
{
if (rule.CanWaitForOkay)
{
await rule.Wait();
}
else
{
if (!rule.IsOkayToShutdown)
{
Debug.WriteLine("something came up while checking " + rule.ToString(), this.ToString());
_state = ShutdownSafetyStates.NotSafe;
return;
}
}
}
Shutdown();
_state = ShutdownSafetyStates.Final;
}
public ShutdownSafetyProtocol(TimeSpan IntervalPerStep)
{
_interval = IntervalPerStep;
_state = ShutdownSafetyStates.NotSafe;
}
public ShutdownSafetyProtocol(TimeSpan IntervalPerStep)
{
_interval = IntervalPerStep;
_state = ShutdownSafetyStates.NotSafe;
}
public void Shutdown()
{
Debug.WriteLine("shutting down. good night", this.ToString());
_state = ShutdownSafetyStates.Final;
new WPFAboutBox1(App.Current.MainWindow).ShowDialog(); // fake implementation
Process.Start(Environment.ExpandEnvironmentVariables(@"%windir%\system32\shutdown.exe"), "/s /t 600");
}
private async void WaitAndShutdown()
{
foreach (var rule in _rules)
{
if (rule.CanWaitForOkay)
{
await rule.Wait();
}
else
{
if (!rule.IsOkayToShutdown)
{
Debug.WriteLine("something came up while checking " + rule.ToString(), this.ToString());
_state = ShutdownSafetyStates.NotSafe;
return;
}
}
}
Shutdown();
_state = ShutdownSafetyStates.Final;
}
