private void OnEventResult(ref PinEventConfiguration config)
{
if (config == null || !PinController.IsValidPin(config.GpioPin))
{
return;
}
if (config.Current.Equals(config.Previous))
{
return;
}
OnValueChangedEventArgs onValueChangedEventArgs = new OnValueChangedEventArgs(config.GpioPin, (CurrentValue)config.Current, (PreviousValue)config.Previous);
switch (config.EventState)
{
case PinEventState.Activated when config.Current.DigitalValue:
OnActivatedEventArgs onActivatedEventArgs = new OnActivatedEventArgs(config.GpioPin, (CurrentValue)config.Current);
ParallelExecuteOnEach(config.EventState, (p) => p.OnActivated(this, onActivatedEventArgs)).RunSynchronously();
break;
case PinEventState.Deactivated when !config.Current.DigitalValue:
OnDeactivatedEventArgs onDeactivatedEventArgs = new OnDeactivatedEventArgs(config.GpioPin, (CurrentValue)config.Current);
ParallelExecuteOnEach(config.EventState, (p) => p.OnDeactivated(this, onDeactivatedEventArgs)).RunSynchronously();
break;
case PinEventState.Both:
break;
}
ParallelExecuteOnEach(config.EventState, (p) => p.OnValueChanged(this, onValueChangedEventArgs)).RunSynchronously();
}
// Should be invoked on a different thread
private void Generate(ref PinEventConfiguration config)
{
if (config == null || !PinController.IsValidPin(config.GpioPin))
{
return;
}
config.IsEventRegistered = true;
do
{
Pin pinConfig = Driver.GetPinConfig(config.GpioPin);
config.Current = new CurrentValue(pinConfig.PinState, pinConfig.IsPinOn, pinConfig.Mode, config.EventState);
OnEventResult(ref config);
Thread.Sleep(POLL_DELAY);
config.Previous = config.Current;
} while (!ShutdownEventGenerationToken.IsCancellationRequested || !config.EventToken.IsCancellationRequested);
config.IsEventRegistered = false;
Logger.Trace($"Polling for '{config.GpioPin}' has been stopped.");
}
internal void InitEventGeneration()
{
Core.Config.GpioConfiguration.InputModePins.ForEach((pin) => {
Pin pinConfig = Driver.GetPinConfig(pin);
CurrentValue currentValue = new CurrentValue(pinConfig.PinState, pinConfig.IsPinOn, pinConfig.Mode, PinEventState.Both);
PreviousValue previousValue = new PreviousValue(pinConfig.PinState, pinConfig.IsPinOn, pinConfig.Mode, PinEventState.Both);
PinEventConfiguration config = new PinEventConfiguration(pin, PinEventState.Both, currentValue, previousValue, new CancellationTokenSource());
Helpers.InBackgroundThread(() => Generate(ref config), longRunning: true);
EventConfigurations.Add(config);
});
Core.Config.GpioConfiguration.OutputModePins.ForEach((pin) => {
Pin pinConfig = Driver.GetPinConfig(pin);
CurrentValue currentValue = new CurrentValue(pinConfig.PinState, pinConfig.IsPinOn, pinConfig.Mode, PinEventState.Both);
PreviousValue previousValue = new PreviousValue(pinConfig.PinState, pinConfig.IsPinOn, pinConfig.Mode, PinEventState.Both);
PinEventConfiguration config = new PinEventConfiguration(pin, PinEventState.Both, currentValue, previousValue, new CancellationTokenSource());
Helpers.InBackgroundThread(() => Generate(ref config), longRunning: true);
EventConfigurations.Add(config);
});
Logger.Info($"'{EventConfigurations.Count}' pin configurations with events initiated.");
}