public bool UnSubscribeFromRangeChangeEvents(IAsyncRingRangeListener observer)
{
lock (grainStatusListeners)
{
return grainStatusListeners.Contains(observer) && grainStatusListeners.Remove(observer);
}
}
public bool UnSubscribeFromRangeChangeEvents(IAsyncRingRangeListener observer)
{
lock (grainStatusListeners)
{
return(grainStatusListeners.Contains(observer) && grainStatusListeners.Remove(observer));
}
}
public bool SubscribeToRangeChangeEvents(IAsyncRingRangeListener observer)
{
lock (grainStatusListeners)
{
if (grainStatusListeners.Contains(observer)) return false;
grainStatusListeners.Add(observer);
return true;
}
}
public bool SubscribeToRangeChangeEvents(IAsyncRingRangeListener observer)
{
lock (grainStatusListeners)
{
if (grainStatusListeners.Contains(observer)) return false;
grainStatusListeners.Add(observer);
return true;
}
}
