public void AddDirectConnection(IAddress other)
{
var newLink = new RoutingMapLink(OwnAddress, other);
var existingLink = Links.FirstOrDefault(link => Equals(link, newLink));
if (!existingLink.Connected)
{
Links.Remove(existingLink);
Links.Add(new RoutingMapLink(OwnAddress, other, existingLink.Version + 1, true));
Version++;
}
}
public bool IsLinkExcess(RoutingMapLink link)
{
if (!link.Connected)
{
return(false);
}
var stateBefore = GraphHelper.CalculateConnectivity(Links);
var nodesBefore = GraphHelper.GetNodes(Links);
Links.Remove(link);
var stateAfter = GraphHelper.CalculateConnectivity(Links);
var nodesAfter = GraphHelper.GetNodes(Links);
Links.Add(link);
return(Equals(stateAfter, stateBefore) && nodesAfter.Count == nodesBefore.Count);
}
public bool ShouldConnectTo(IAddress other)
{
var peers = GraphHelper.GetPeers(OwnAddress, Links).ToList();
if (peers.Count >= config.MaxConnections || peers.Contains(other))
{
return(false);
}
var newLink = new RoutingMapLink(OwnAddress, other);
if (GraphHelper.IsReachable(other, OwnAddress, Links))
{
if (peers.Count >= config.DesiredConnections)
{
return(false);
}
var existingLink = Links.FirstOrDefault(link => Equals(link, newLink));
var stateBefore = GraphHelper.CalculateConnectivity(Links);
Links.Remove(existingLink);
Links.Add(newLink);
var stateAfter = GraphHelper.CalculateConnectivity(Links);
Links.Remove(newLink);
if (existingLink.A != null)
{
Links.Add(existingLink);
}
if (Equals(stateAfter, stateBefore))
{
return(false);
}
}
return(true);
}
public bool Equals(RoutingMapLink other)
{
return(Equals(A, other.A) && Equals(B, other.B) || Equals(A, other.B) && Equals(B, other.A));
}
