public bool UpdatePeer(IPEndPoint peerEndPoint)
{
bool result = false;
if (peerEndPoint == null)
{
return(false);
}
var peerAddress = peerEndPoint.Address;
Peer peer = FindPeer(peerAddress);
if (peer == null)
{
peer = AddPeer(peerAddress, peerEndPoint.Port);
result = true;
}
// TODO: it's bad place for peers' ping!
// FIXME: find out which ping gets the answer! check it for a long time testing!
//fDHTClient.SendPingQuery(peerEndPoint);
fDHTClient.SendPingQuery(new IPEndPoint(peerAddress, fDHTClient.LocalEndPoint.Port));
return(result);
}
/// <summary>
/// Many thanks to Konstantinos Gkinis <aka raidenfreeman> for project https://github.com/raidenfreeman/ICE-Experiment,
/// who explained in a simple way how to implement UDP Hole punching.
/// </summary>
private void SendPing(Peer peer, bool holePunch)
{
DateTime dtNow = DateTime.UtcNow;
if (dtNow - peer.LastPingTime > PingInterval)
{
if (!holePunch)
{
fDHTClient.SendPingQuery(peer.EndPoint, true);
}
else
{
for (int i = 0; i < 10; i++)
{
fDHTClient.SendPingQuery(peer.EndPoint, false);
}
}
peer.PingTries += 1;
peer.LastPingTime = dtNow;
}
}