public void DisposeDelivery()

in src/AmqpSession.cs [854:924]
67 lines of code
13 McCabe index (conditional complexity)

            public void DisposeDelivery(Delivery delivery, bool settled, DeliveryState state, bool noFlush)
            {
                if (delivery.Settled)
                {
                    this.OnWindowMoved(1);
                    return;
                }

                bool scheduleTimer = false;
                Delivery toDispose = null;

                lock (this.syncRoot)
                {
                    delivery.StateChanged = true;
                    delivery.Settled = settled;
                    delivery.State = state;

                    if (!delivery.Batchable)
                    {
                        delivery.StateChanged = false;
                        toDispose = delivery;
                        if (delivery.Settled)
                        {
                            Delivery.Remove(ref this.firstUnsettled, ref this.lastUnsettled, delivery);
                        }
                    }
                    else if (this.sendingDisposition || noFlush)
                    {
                        return;
                    }
                    else if (this.session.settings.DispositionInterval == TimeSpan.Zero ||
                        ++this.needDispositionCount >= this.session.settings.DispositionThreshold)
                    {
                        this.sendingDisposition = true;
                        this.needDispositionCount = 0;
                    }
                    else if (!this.timerScheduled)
                    {
                        this.timerScheduled = true;
                        scheduleTimer = true;
                    }
                }

                if (toDispose != null)
                {
                    this.SendDisposition(new DispositionInfo(toDispose));
                    if (delivery.Settled)
                    {
                        this.OnWindowMoved(1);
                    }
                }
                else if (scheduleTimer)
                {
                    if (this.dispositionTimer == null)
                    {
                        this.dispositionTimer = new Timer(
                            s => DispositionTimerCallback(s),
                            this,
                            this.session.settings.DispositionInterval,
                            Timeout.InfiniteTimeSpan);
                    }
                    else
                    {
                        this.dispositionTimer.Change(this.session.settings.DispositionInterval, Timeout.InfiniteTimeSpan);
                    }
                }
                else
                {
                    this.SendDisposition();
                }
            }