/// <inheritdoc/>
protected override void Dispose(bool disposing)
{
if (_pinNumberToEventHandler != null)
{
foreach (KeyValuePair <int, LibGpiodDriverEventHandler> kv in _pinNumberToEventHandler)
{
LibGpiodDriverEventHandler eventHandler = kv.Value;
eventHandler.Dispose();
}
_pinNumberToEventHandler.Clear();
}
if (_pinNumberToSafeLineHandle != null)
{
foreach (int pin in _pinNumberToSafeLineHandle.Keys)
{
if (_pinNumberToSafeLineHandle.TryGetValue(pin, out SafeLineHandle pinHandle))
{
pinHandle?.Dispose();
}
}
_pinNumberToSafeLineHandle.Clear();
}
_chip?.Dispose();
_chip = null;
base.Dispose(disposing);
}
protected internal override WaitForEventResult WaitForEvent(int pinNumber, PinEventTypes eventTypes, CancellationToken cancellationToken)
{
if (eventTypes.HasFlag(PinEventTypes.Rising) || eventTypes.HasFlag(PinEventTypes.Falling))
{
LibGpiodDriverEventHandler eventHandler = _pinNumberToEventHandler.GetOrAdd(pinNumber, PopulateEventHandler);
if (eventTypes.HasFlag(PinEventTypes.Rising))
{
eventHandler.ValueRising += callback;
}
else if (eventTypes.HasFlag(PinEventTypes.Falling))
{
eventHandler.ValueFalling += callback;
}
bool eventOccured = false;
void callback(object o, PinValueChangedEventArgs e)
{
eventOccured = true;
}
WaitForEventResult(cancellationToken, eventHandler.CancellationTokenSource.Token, ref eventOccured);
RemoveCallbackForPinValueChangedEvent(pinNumber, callback);
return(new WaitForEventResult
{
TimedOut = !eventOccured,
EventTypes = eventTypes
});
}
else
{
throw ExceptionHelper.GetArgumentException(ExceptionResource.InvalidEventType);
}
}
protected internal override void AddCallbackForPinValueChangedEvent(int pinNumber, PinEventTypes eventTypes, PinChangeEventHandler callback)
{
if (eventTypes.HasFlag(PinEventTypes.Rising) || eventTypes.HasFlag(PinEventTypes.Falling))
{
LibGpiodDriverEventHandler eventHandler = _pinNumberToEventHandler.GetOrAdd(pinNumber, PopulateEventHandler);
if (eventTypes.HasFlag(PinEventTypes.Rising))
{
eventHandler.ValueRising += callback;
}
else if (eventTypes.HasFlag(PinEventTypes.Falling))
{
eventHandler.ValueFalling += callback;
}
}
else
{
throw ExceptionHelper.GetArgumentException(ExceptionResource.InvalidEventType);
}
}
