Opc.Ua.Server.SessionPublishQueue.CompletePublish C# (CSharp) Method

        public Subscription CompletePublish(
            bool requeue, 
            AsyncPublishOperation operation,
            object calldata)
        {
            // Utils.Trace("PUBLISH: #{0} Completing", operation.RequestHandle, requeue);

            QueuedRequest request = (QueuedRequest)calldata;

            // check if need to requeue.
            lock (m_lock)
            {
                if (requeue)
                {
                    request.Subscription = null;
                    request.Error = StatusCodes.Good;
                    m_queuedRequests.AddFirst(request);
                    return null;
                }
            }

            // must reassign subscription on error.
            if (ServiceResult.IsBad(request.Error))
            {
                // Utils.Trace("PUBLISH: #{0} Reassigned ERROR({1})", operation.RequestHandle, request.Error);

                if (request.Subscription != null)
                {
                    lock (m_lock)
                    {
                        request.Subscription.Publishing = false;
                        AssignSubscriptionToRequest(request.Subscription);
                    }
                }

                // TraceState("REQUEST #{0} PUBLISH ERROR ({1})", clientHandle, error.StatusCode);
                throw new ServiceResultException(request.Error);
            }

            // must be shuting down if this is null but no error.
            if (request.Subscription == null)
            {
                throw new ServiceResultException(StatusCodes.BadNoSubscription);
            }

            // return whatever was assigned.
            return request.Subscription.Subscription;
        }