void WriteDelivery(Delivery delivery)
{
while (delivery != null)
{
delivery.Handle = this.Handle;
try
{
bool settled = delivery.Settled;
this.Session.SendDelivery(delivery);
if (settled && delivery.OnOutcome != null)
{
delivery.OnOutcome(this, delivery.Message, new Accepted(), delivery.UserToken);
}
}
catch
{
lock (this.ThisLock)
{
this.writing = false;
}
throw;
}
bool shouldClose = false;
lock (this.ThisLock)
{
delivery = (Delivery)this.outgoingList.First;
if (delivery == null || this.credit == 0)
{
shouldClose = this.CloseCalled;
delivery = null;
this.writing = false;
}
else if (this.credit > 0)
{
this.outgoingList.Remove(delivery);
delivery.Tag = Delivery.GetDeliveryTag(this.deliveryCount);
this.credit--;
this.deliveryCount++;
}
}
if (shouldClose)
{
Error error = this.Error;
this.OnAbort(error);
if (base.OnClose(error))
{
this.NotifyClosed(error);
}
}
}
}
void SendInternal(Message message, DeliveryState deliveryState, OutcomeCallback callback, object state, bool sync)
{
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,
Batchable = !sync
};
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);
}
void WriteDelivery(Delivery delivery)
{
while (delivery != null)
{
delivery.Handle = this.Handle;
try
{
bool settled = delivery.Settled;
this.Session.SendDelivery(delivery);
if (settled && delivery.OnOutcome != null)
{
delivery.OnOutcome(delivery.Message, new Accepted(), delivery.UserToken);
}
}
catch
{
this.writing = false;
throw;
}
lock (this.ThisLock)
{
delivery = (Delivery)this.outgoingList.First;
if (delivery == null)
{
this.writing = false;
}
else if (this.credit > 0)
{
this.outgoingList.Remove(delivery);
delivery.Tag = Delivery.GetDeliveryTag(this.deliveryCount);
this.credit--;
this.deliveryCount++;
}
else
{
delivery = null;
this.writing = false;
}
}
}
}
internal override void OnFlow(Flow flow)
{
Delivery delivery = null;
lock (this.ThisLock)
{
this.credit = (flow.DeliveryCount + flow.LinkCredit) - this.deliveryCount;
if (this.writing || this.credit <= 0 || this.outgoingList.First == null)
{
return;
}
delivery = (Delivery)this.outgoingList.First;
this.outgoingList.Remove(delivery);
delivery.Tag = Delivery.GetDeliveryTag(this.deliveryCount);
this.credit--;
this.deliveryCount++;
this.writing = true;
}
this.WriteDelivery(delivery);
}
