Amqp.SenderLink.Send C# (CSharp) Метод

        internal void Send(Message message, DeliveryState deliveryState, OutcomeCallback callback, object state)
        {
            const int reservedBytes = 40;
#if NETFX || NETFX40 || DOTNET
            var buffer = message.Encode(this.Session.Connection.BufferManager, reservedBytes);
#else
            var buffer = message.Encode(reservedBytes);
#endif
            if (buffer.Length < 1)
            {
                throw new ArgumentException("Cannot send an empty message.");
            }

            Delivery delivery = new Delivery()
            {
                Message = message,
                Buffer = buffer,
                ReservedBufferSize = reservedBytes,
                State = deliveryState,
                Link = this,
                OnOutcome = callback,
                UserToken = state,
                Settled = this.settleMode == SenderSettleMode.Settled || callback == null
            };

            lock (this.ThisLock)
            {
                this.ThrowIfDetaching("Send");

                if (this.credit <= 0 || this.writing)
                {
                    this.outgoingList.Add(delivery);
                    return;
                }

                delivery.Tag = Delivery.GetDeliveryTag(this.deliveryCount);
                this.credit--;
                this.deliveryCount++;
                this.writing = true;
            }

            this.WriteDelivery(delivery);
        }

        public void TransactedPosting()
        {
            string testName = "TransactedPosting";
            int nMsgs = 5;

            Connection connection = new Connection(this.address);
            Session session = new Session(connection);
            SenderLink sender = new SenderLink(session, "sender-" + testName, "q1");

            // commit
            using (var ts = new TransactionScope())
            {
                for (int i = 0; i < nMsgs; i++)
                {
                    Message message = new Message("test");
                    message.Properties = new Properties() { MessageId = "commit" + i, GroupId = testName };
                    sender.Send(message);
                }

                ts.Complete();
            }

            // rollback
            using (var ts = new TransactionScope())
            {
                for (int i = nMsgs; i < nMsgs * 2; i++)
                {
                    Message message = new Message("test");
                    message.Properties = new Properties() { MessageId = "rollback" + i, GroupId = testName };
                    sender.Send(message);
                }
            }

            // commit
            using (var ts = new TransactionScope())
            {
                for (int i = 0; i < nMsgs; i++)
                {
                    Message message = new Message("test");
                    message.Properties = new Properties() { MessageId = "commit" + i, GroupId = testName };
                    sender.Send(message);
                }

                ts.Complete();
            }

            ReceiverLink receiver = new ReceiverLink(session, "receiver-" + testName, "q1");
            for (int i = 0; i < nMsgs * 2; i++)
            {
                Message message = receiver.Receive();
                Trace.WriteLine(TraceLevel.Information, "receive: {0}", message.Properties.MessageId);
                receiver.Accept(message);
                Assert.IsTrue(message.Properties.MessageId.StartsWith("commit"));
            }

            connection.Close();
        }