///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)
{
// Get the local interface, doing a translation from subnet if necessary
string localIF = InetAddress.DoSubnetTranslation(t.GetLocalInterface());
string key = MakeKey(t, localIF);
if (SendDataHandlers.ContainsKey(key))
{
ISendDataHandler sender = SendDataHandlers[key];
if (t.GetTransport().Equals(Topic.TRANSPORT_UDP))
{
PostSetup(t, participant, (McUdpSendDataHandler)sender);
}
return(sender);
}
try
{
ISendDataHandler sender = null;
if (t.GetTransport().Equals(Topic.TRANSPORT_MC))
{
sender = new McSendDataHandler(t, localIF, t.GetTimeToLive());
}
else if (t.GetTransport().Equals(Topic.TRANSPORT_TCP))
{
sender = new TcpSendDataHandler(t, localIF);
}
else if (t.GetTransport().Equals(Topic.TRANSPORT_UDP))
{
// We have only one sender for all topics on an interface, so use the domain value for buffer size
sender = new McUdpSendDataHandler(participant.getDomain().GetOutSocketBufferSize(), localIF);
PostSetup(t, participant, (McUdpSendDataHandler)sender);
}
if (sender != null)
{
SendDataHandlers.Add(key, sender);
return(sender);
}
throw new CommException("No such Transport " + t.GetTransport());
}
catch (System.IO.IOException ex)
{
throw new CommException("Error creating SendDataHandler. IOException -->" + ex.Message);
}
}
void checkTopicValues(Topic top)
{
if (top.GetDomainAddress().Equals(""))
{
top.SetDomainAddress(domainAddress);
}
if (top.GetLocalInterface().Equals(""))
{
top.SetLocalInterface(localInterface);
}
if (top.GetTimeToLive() < 0)
{
top.SetTimeToLive(timeToLive);
}
if (top.GetInSocketBufferSize() < 0)
{
top.SetInSocketBufferSize(inSocketBufferSize);
}
if (top.GetOutSocketBufferSize() < 0)
{
top.SetOutSocketBufferSize(outSocketBufferSize);
}
top.SetOptNonVirt(optNonVirt);
}