Exemple #1
0
            // ReSharper disable once UnusedParameter.Local
            private void Dispose(bool disposing)
            {
                // 1. lock(this) is bad
                // 2. sync object just for subscribe/dispose will add 8 bytes to obj size, rarely used
                // 3. reusing _container._locker could interfere with data writes,
                //    but in steady state there should be no subscriptions/disposals.

                _container.AcquireLock();
                try
                {
                    DoDispose();
                }
                finally
                {
                    _container.ReleaseLock();
                }

                void DoDispose()
                {
                    if (ReferenceEquals(_container._subscriptions, this))
                    {
                        _container._subscriptions = null;
                        return;
                    }

                    // single -> [] is one-way, we have read existing via
                    if (_container._subscriptions is ContainerSubscription[] subsArray)
                    {
                        for (int i = 0; i < subsArray.Length; i++)
                        {
                            if (ReferenceEquals(subsArray[i], this))
                            {
                                Volatile.Write(ref subsArray[i], null);
                                break;
                            }
                        }
                    }
                }
            }