Rhino.Queues.QueueManager.WaitForAllMessagesToBeSent C# (CSharp) Method

        public void WaitForAllMessagesToBeSent()
        {
            waitingForAllMessagesToBeSent = true;
            try
            {
                var hasMessagesToSend = true;
                do
                {
                    queueStorage.Send(actions =>
                    {
                        hasMessagesToSend = actions.HasMessagesToSend();
                        actions.Commit();
                    });
                    if (hasMessagesToSend)
                        Thread.Sleep(100);
                } while (hasMessagesToSend);
            }
            finally
            {
                waitingForAllMessagesToBeSent = false;
            }
        }