Hi

In RFA a Snapshot is just a flag set in the request, it means we want only initial refresh message (not the updates), all the remaining code is the same.

You can 'emulate' a synchronous request using a method where you make a loop calling eventQueue dispatch, for instance:

// send Snapshot request

...

reqMsg.InteractionType = ReqMsg.InteractionTypeFlag.InitialImage;

handle = Context.OMMConsumer.RegisterClient(Context.EventQueue, ommItemIntSpec, this, closurel);

// wait data for 'timeoutSeconds'

                    System.DateTime currentTime = System.DateTime.Now;
                    System.DateTime endTime = currentTime.AddSeconds(timeoutSeconds);
                    receivedSnap = false;
                    while ((!receivedSnap) && (currentTime < endTime))
                    {
                        eventQueue.Dispatch(dispatchTimeOutInterval);
                        currentTime = System.DateTime.Now;
                    }

Somewhere in your processEvent() when the snap is receivede you set receiveSna=true.


	public void ProcessEvent(Event evnt)
        {
            switch (evnt.Type)
            {
                case SessionLayerEventTypeEnum.OMMItemEvent:
                    // extract event data
			receivedSnap = true;

                    break;
                default:
                    break;
            }
        }


In a scenario with multiple request you will need maybe a Dictionary to store the receivedSnap flag for each request. (you can use the closure parameter to help identify from which ric the refresh refers to, etc).



It would be inefficient to request and wait each ric image at a time.

Paulo.

Thanks - I will need to look into more details the dispatch method and also dispatchTimeOutInterval parameter. In our case, we have indeed multiple request - up to 800 Rics for a snapshot. So I am trying to find the most efficient way to do so.