/// <summary>
/// Returns the next event key for a multicast event for the given <paramref name="service"/>.
/// </summary>
/// <param name="service">Service for that the new multicast event key should be created.</param>
/// <returns>New multicast event key.</returns>
public uint GetNextMulticastEventKey(DvService service)
{
EventingState state = GetMulticastEventKey(service);
uint result = state.EventKey;
state.IncEventKey();
return(result);
}
/// <summary>
/// Returns the event key for a multicast event for the given <paramref name="service"/> or <c>null</c>.
/// </summary>
public EventingState GetMulticastEventKey(DvService service)
{
EventingState result;
if (!ServiceMulticastEventingState.TryGetValue(service, out result))
{
ServiceMulticastEventingState[service] = result = new EventingState();
}
return(result);
}