private void IncomingOlsrTopologyControlMessageHandler(NetSimMessage message)
{
OlsrTopologyControlMessage topMessage = (OlsrTopologyControlMessage)message;
// if own tc message
if (topMessage.Sender.Equals(this.Client.Id))
{
// drop message
return;
}
// process tc message
foreach (var mprSelector in topMessage.MultiPointRelaySelectorSet)
{
if (
!this.TopologyTable.Entries.Any(
e => e.OriginatorId.Equals(topMessage.Sender) && e.MprSelectorId.Equals(mprSelector)))
{
this.TopologyTable.AddEntry(topMessage.Sender, mprSelector);
this.IsTopologyUpdate = true;
}
}
// A node P forwards control messages only from MPRsel(P)
if (this.MultiPointRelaySelectorSet.Contains(topMessage.Sender))
{
// forward message
this.BroadcastTopologyControlMessages(topMessage);
}
}
/// <summary>
/// Clones this instance.
/// </summary>
/// <returns>
/// A new object that is a copy of this instance.
/// </returns>
public override object Clone()
{
var clone = new OlsrTopologyControlMessage()
{
SequenceNr = (OlsrSequence)this.SequenceNr?.Clone(),
MultiPointRelaySelectorSet = new List <string>(this.MultiPointRelaySelectorSet)
};
return(this.CopyTo(clone));
}
/// <summary>
/// Broadcasts the topology control messages.
/// </summary>
/// <param name="message">The message.</param>
private void BroadcastTopologyControlMessages(OlsrTopologyControlMessage message)
{
// TODO Check if send to every node or only to MPRsel set
// broadcast topology control messages to mpr selector set neighbors
foreach (var entry in this.OneHopNeighborTable.Entries)
{
// TODO .Where(e => MultiPointRelaySelectorSet.Contains(e.NeighborId))
// copy message before forwarding
var localMessageCopy = (OlsrTopologyControlMessage)message.Clone();
// A node P sends control messages only to MPRsel(P)
localMessageCopy.Receiver = entry.NeighborId;
if (this.IsConnectionReachable(entry.NeighborId))
{
this.Client.Connections[entry.NeighborId].StartTransportMessage(
localMessageCopy,
this.Client.Id,
entry.NeighborId);
}
}
}
/// <summary>
/// Broadcasts the topology control messages.
/// </summary>
private void BroadcastTopologyControlMessages()
{
// broadcast topology control messages to mpr selector set neighbors
foreach (
var entry in
this.OneHopNeighborTable.Entries.Where(e => this.MultiPointRelaySelectorSet.Contains(e.NeighborId)))
{
// A node P sends control messages only to MPRsel(P)
var message = new OlsrTopologyControlMessage()
{
Sender = this.Client.Id,
Receiver = entry.NeighborId,
MultiPointRelaySelectorSet = new List <string>(this.MultiPointRelaySelectorSet)
};
if (this.IsConnectionReachable(entry.NeighborId))
{
this.Client.Connections[entry.NeighborId].StartTransportMessage(
message,
this.Client.Id,
entry.NeighborId);
}
}
}
