internal bool UnSubscribeFromSiloStatusEvents(ISiloStatusListener observer)
{
lock (statusListeners)
{
return(statusListeners.Contains(observer) && statusListeners.Remove(observer));
}
}
internal bool SubscribeToSiloStatusEvents(ISiloStatusListener observer)
{
lock (statusListeners)
{
if (statusListeners.Contains(observer))
{
return(false);
}
statusListeners.Add(observer);
return(true);
}
}
public bool Unsubscribe(ISiloStatusListener listener)
{
lock (this.listenersLock)
{
for (var i = 0; i < this.listeners.Count; i++)
{
if (!this.listeners[i].TryGetTarget(out var existing))
{
continue;
}
if (ReferenceEquals(existing, listener))
{
this.listeners = this.listeners.RemoveAt(i);
return(true);
}
}
return(false);
}
}
public bool Subscribe(ISiloStatusListener listener)
{
lock (this.listenersLock)
{
foreach (var reference in this.listeners)
{
if (!reference.TryGetTarget(out var existing))
{
continue;
}
if (ReferenceEquals(existing, listener))
{
return(false);
}
}
this.listeners = this.listeners.Add(new WeakReference <ISiloStatusListener>(listener));
return(true);
}
}
/// <summary>
/// UnSubscribe from status events about all silos.
/// </summary>
/// <returns>bool value indicating that subscription succeeded or not.</returns>
public bool UnSubscribeFromSiloStatusEvents(ISiloStatusListener observer)
{
this.subscribers.TryRemove(observer, out observer);
return(true);
}
/// <summary>
/// Subscribe to status events about all silos.
/// </summary>
/// <param name="observer">An observer async interface to receive silo status notifications.</param>
/// <returns>bool value indicating that subscription succeeded or not.</returns>
public bool SubscribeToSiloStatusEvents(ISiloStatusListener observer)
{
this.subscribers[observer] = observer;
return(true);
}
public bool UnSubscribeFromSiloStatusEvents(ISiloStatusListener listener) => this.listenerManager.Unsubscribe(listener);
public bool SubscribeToSiloStatusEvents(ISiloStatusListener listener) => this.listenerManager.Subscribe(listener);
internal bool SubscribeToSiloStatusEvents(ISiloStatusListener observer)
{
lock (statusListeners)
{
if (statusListeners.Contains(observer))
return false;
statusListeners.Add(observer);
return true;
}
}
internal bool UnSubscribeFromSiloStatusEvents(ISiloStatusListener observer)
{
lock (statusListeners)
{
return statusListeners.Contains(observer) && statusListeners.Remove(observer);
}
}
