internal Session(Connection connection, Begin begin)
{
this.connection = connection;
this.channel = connection.AddSession(this);
this.handleMax = begin.HandleMax;
this.localLinks = new Link[1];
this.remoteLinks = new Link[1];
this.incomingList = new LinkedList();
this.outgoingList = new LinkedList();
this.nextOutgoingId = uint.MaxValue - 2u;
this.outgoingWindow = begin.IncomingWindow;
this.incomingDeliveryId = uint.MaxValue;
begin.NextOutgoingId = this.nextOutgoingId;
this.state = State.BeginSent;
this.SendBegin(begin);
}
void OnTransfer(Transfer transfer, ByteBuffer buffer)
{
bool newDelivery;
lock (this.ThisLock)
{
if (this.incomingWindow-- == 0)
{
this.SendFlow(new Flow());
}
this.nextIncomingId++;
newDelivery = transfer.HasDeliveryId && transfer.DeliveryId > this.incomingDeliveryId;
if (newDelivery)
{
this.incomingDeliveryId = transfer.DeliveryId;
}
}
Link link = this.GetLink(transfer.Handle);
Delivery delivery = null;
if (newDelivery)
{
delivery = new Delivery()
{
DeliveryId = transfer.DeliveryId,
Link = link,
Tag = transfer.DeliveryTag,
Settled = transfer.Settled,
State = transfer.State
};
if (!delivery.Settled)
{
lock (this.ThisLock)
{
this.incomingList.Add(delivery);
}
}
}
link.OnTransfer(delivery, transfer, buffer);
}
void OnDelivery(SequenceNumber deliveryId)
{
// called with lock held
if (this.credit <= 0)
{
throw new AmqpException(ErrorCode.TransferLimitExceeded,
Fx.Format(SRAmqp.DeliveryLimitExceeded, deliveryId));
}
this.deliveryCount++;
this.credit--;
}
internal override void OnAttach(uint remoteHandle, Attach attach)
{
base.OnAttach(remoteHandle, attach);
this.deliveryCount = attach.InitialDeliveryCount;
}
internal void OnBegin(ushort remoteChannel, Begin begin)
{
lock (this.ThisLock)
{
if (this.state == State.BeginSent)
{
this.state = State.Opened;
}
else if (this.state == State.EndPipe)
{
this.state = State.EndSent;
}
else
{
throw new AmqpException(ErrorCode.IllegalState,
Fx.Format(SRAmqp.AmqpIllegalOperationState, "OnBegin", this.state));
}
this.outgoingWindow = begin.IncomingWindow;
this.nextIncomingId = begin.NextOutgoingId;
}
if (begin.HandleMax < this.handleMax)
{
this.handleMax = begin.HandleMax;
}
if (this.onBegin != null)
{
this.onBegin(this, begin);
}
}
public int CompareTo(SequenceNumber value)
{
int delta = this.sequenceNumber - value.sequenceNumber;
if (delta == int.MinValue)
{
// Behavior of comparing 0u-2147483648u, 1u-2147483649u, ...
// is undefined, so we do not allow it.
throw new AmqpException(ErrorCode.NotAllowed,
Fx.Format(SRAmqp.InvalidSequenceNumberComparison, (uint)this.sequenceNumber, (uint)value.sequenceNumber));
}
return delta;
}
internal override void OnAttach(uint remoteHandle, Attach attach)
{
base.OnAttach(remoteHandle, attach);
this.deliveryCount = attach.InitialDeliveryCount;
}