Ejemplo n.º 1
0
            /// <summary>
            /// Remove 'subscription from the list of subscriptions that the observable has.   Called when
            /// subscriptions are disposed.   Returns true if the subscription was removed.
            /// </summary>
            private bool Remove(AllListenerSubscription subscription)
            {
                lock (s_allListenersLock)
                {
                    if (_subscriptions == subscription)
                    {
                        _subscriptions = subscription.Next;
                        return(true);
                    }
                    else if (_subscriptions != null)
                    {
                        for (var cur = _subscriptions; cur.Next != null; cur = cur.Next)
                        {
                            if (cur.Next == subscription)
                            {
                                cur.Next = cur.Next.Next;
                                return(true);
                            }
                        }
                    }

                    // Subscriber likely disposed multiple times
                    return(false);
                }
            }
Ejemplo n.º 2
0
            public IDisposable Subscribe(IObserver <DiagnosticListener> observer)
            {
                lock (s_allListenersLock)
                {
                    // Call back for each existing listener on the new callback (catch-up).
                    for (DiagnosticListener cur = s_allListeners; cur != null; cur = cur._next)
                    {
                        observer.OnNext(cur);
                    }

                    // Add the observer to the list of subscribers.
                    _subscriptions = new AllListenerSubscription(this, observer, _subscriptions);
                    return(_subscriptions);
                }
            }
Ejemplo n.º 3
0
 /// <summary>
 /// Remove 'subscription from the list of subscriptions that the observable has.   Called when
 /// subscriptions are disposed.
 /// </summary>
 private void Remove(AllListenerSubscription subscription)
 {
     lock (DefaultListener)
     {
         // Remove myself from the linked list.
         if (_subscriptions == subscription)
         {
             _subscriptions = subscription.Next;
         }
         else
         {
             for (var cur = _subscriptions; cur.Next != null; cur = cur.Next)
             {
                 if (cur.Next.Subscriber == this)
                 {
                     cur.Next = cur.Next.Next;
                     return;
                 }
             }
             Debug.Assert(false, "Could not find subscription in the AllListeners subscribers list");
         }
     }
 }
Ejemplo n.º 4
0
 internal AllListenerSubscription(AllListenerObservable owner, IObserver <DiagnosticListener> subscriber, AllListenerSubscription next)
 {
     this._owner     = owner;
     this.Subscriber = subscriber;
     this.Next       = next;
 }