private DhtRpcPacket Query(DhtRpcPacket query, NodeContact contact)
{
Stream s = null;
try
{
if (contact.IsCurrentNode)
{
return(ProcessQuery(query, contact.NodeEP));
}
s = _manager.GetConnection(contact.NodeEP);
//set timeout
s.WriteTimeout = _queryTimeout;
s.ReadTimeout = _queryTimeout;
//send query
query.WriteTo(new BinaryWriter(s));
s.Flush();
Debug.Write(this.GetType().Name, "query sent to: " + contact.ToString());
//read response
DhtRpcPacket response = new DhtRpcPacket(new BinaryReader(s));
Debug.Write(this.GetType().Name, "response received from: " + contact.ToString());
//auto add contact or update last seen time
{
NodeContact bucketContact = _routingTable.FindContact(contact.NodeId);
if (bucketContact == null)
{
contact.UpdateLastSeenTime();
_routingTable.AddContact(contact);
}
else
{
bucketContact.UpdateLastSeenTime();
}
}
return(response);
}
catch (Exception ex)
{
Debug.Write(this.GetType().Name, ex);
contact.IncrementRpcFailCount();
return(null);
}
finally
{
if (s != null)
{
s.Dispose();
}
}
}
public void AddNode(NodeContact contact)
{
if (contact.NodeEP.AddressFamily != _currentNode.NodeEP.AddressFamily)
{
return;
}
if (_routingTable.AddContact(contact))
{
Debug.Write(this.GetType().Name, "node contact added: " + contact.ToString());
ThreadPool.QueueUserWorkItem(delegate(object state)
{
Query(DhtRpcPacket.CreatePingPacket(_currentNode), contact);
});
}
}
