Esempio n. 1
0
        public void AddSubscriber(Subscriber sub)
        {
            subscribers.Add(sub);

            if (!hasSubscribers)
            {
                // Reset some variables so we can start fresh
                bytesReceived = 0;
                expectedFragment = 0;
                //
                receiver.GetNewBytesEvent().AddObserver(this);
                receiver.Open();
                hasSubscribers = true;
                SetupTransportThread();
            }
        }
Esempio n. 2
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        public void SubscriberNewData(Subscriber sender, OPSObject data)
        {
            if (!(data is ParticipantInfoData)) return;

            ParticipantInfoData partInfo = (ParticipantInfoData)data;

            // Is it on our domain?
            if (partInfo.domain.Equals(participant.domainID)) {

                foreach (TopicInfoData tid in partInfo.subscribeTopics)
                {
                    // We are only interrested in topics with UDP as transport
                    if ( (tid.transport.Equals(Topic.TRANSPORT_UDP)) && (participant.HasPublisherOn(tid.name)) )
                    {
                        udpSendDataHandler.AddSink(tid.name, partInfo.ip, partInfo.mc_udp_port);
                    }
                }
            }
        }
Esempio n. 3
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 public void RemoveSubscriber(Subscriber subscriber)
 {
     subscribers.Remove(subscriber);
 }
Esempio n. 4
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 public void AddSubscriber(Subscriber subscriber)
 {
     subscribers.Add(subscriber);
 }
Esempio n. 5
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        ///LA TODO Protection ?? What if several subscribers at the same time
        /// Not needed since all calls go through the participant which is synched
        public ISendDataHandler GetSendDataHandler(Topic t, Participant participant)
        {
            // In the case that we use the same port for several topics, we need to find the sender for the transport::address::port used
            string key = t.GetTransport() + "::" + t.GetDomainAddress() + "::" + t.GetPort();

            if (SendDataHandlers.ContainsKey(key))
            {
                return SendDataHandlers[key];
            }

            try
            {
                // Get the local interface, doing a translation from subnet if necessary
                string localIF = Domain.DoSubnetTranslation(participant.getDomain().GetLocalInterface());

                ISendDataHandler sender = null;
                if (t.GetTransport().Equals(Topic.TRANSPORT_MC))
                {
                    sender = new McSendDataHandler(t, localIF);
                }
                else if (t.GetTransport().Equals(Topic.TRANSPORT_TCP))
                {
                    sender = new TcpSendDataHandler(t, localIF);
                }
                if (sender != null)
                {
                    SendDataHandlers.Add(key, sender);
                    return sender;
                }

                // We don't want to add the udp handler to the handler list, so handle this last
                if (t.GetTransport().Equals(Topic.TRANSPORT_UDP))
                {
                    if (udpSendDataHandler == null)
                    {
                        // We have only one sender for all topics, so use the domain value for buffer size
                        udpSendDataHandler = new McUdpSendDataHandler(
                            participant.getDomain().GetOutSocketBufferSize(),
                            localIF);

                        // Setup a listener on the participant info data published by participants on our domain.
                        // We use the information for topics with UDP as transport, to know the destination for UDP sends
                        // ie. we extract ip and port from the information and add it to our McUdpSendDataHandler
                        partInfoListener = new ParticipantInfoDataListener(participant, udpSendDataHandler);

                        partInfoSub = new Subscriber(participant.CreateParticipantInfoTopic());
                        partInfoSub.newDataDefault += new NewDataDefaultEventHandler(partInfoListener.SubscriberNewData);
                        partInfoSub.Start();
                    }
                    return udpSendDataHandler;
                }

                throw new CommException("No such Transport " + t.GetTransport());
            }
            catch (System.IO.IOException ex)
            {
                throw new CommException("Error creating SendDataHandler. IOException -->" + ex.Message);
            }
        }
Esempio n. 6
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        public bool RemoveSubscriber(Subscriber sub)
        {
            bool result = subscribers.Remove(sub);

            if (subscribers.Count == 0)
            {
                receiver.GetNewBytesEvent().DeleteObserver(this);
                hasSubscribers = false;
                receiver.Close();
            }

            return result;
        }