private void CheckTimer(TimerLibrary.Timer timer)
{
if (timer == null)
{
throw new ArgumentNullException($"{nameof(timer)} can't be null");
}
}
static void Main(string[] args)
{
TimerLibrary.Timer timer = new TimerLibrary.Timer();
FirstSubscriber firstSubscriber = new FirstSubscriber();
SecondSubscriber secondSubscriber = new SecondSubscriber();
firstSubscriber.Subscribe(timer);
secondSubscriber.Subscribe(timer);
timer.StartTimer(10, "test");
secondSubscriber.Unsubscribe(timer);
timer.StartTimer(5, "test1");
System.Console.ReadLine();
}
public void Unsubscribe(TimerLibrary.Timer timer)
{
CheckTimer(timer);
timer.TimerEnded -= ReceiveMessage;
}