public IPEndPoint SyncWithPeer(PeerInfo peer, int timeout, UdpClient udpClient)
{
long waitTime = timeout * 10000;
long startTime = DateTime.Now.Ticks;
Logger.Debug("Syncing with peer " + peer + " from " + udpClient.Client.LocalEndPoint + " to establish tunnel " + Id);
StandardSyncRqTunnelPacket syncRq = new StandardSyncRqTunnelPacket();
_syncEvent.Reset();
_udpClient = udpClient;
InitReceiverThread();
int attempts = 0;
do
{
if (DateTime.Now.Ticks - startTime > waitTime)
{
Logger.Debug("Tunnel " + Id + ", sync Timeout : " + (DateTime.Now.Ticks - startTime));
throw new TimeoutException("Tunnel " + Id + ", timeout occured while attempting sync with peer " + peer);
}
byte[] syncBytes = syncRq.getBytes();
if ((_syncTypes.Contains(SyncType.All) || _syncTypes.Contains(SyncType.Internal)))
{
Logger.Debug("Tunnel " + Id + ", sent requests, waiting for sync response from internal of " + peer);
foreach (var endPoint in peer.InternalEndPoints)
{
udpClient.Send(syncBytes, syncBytes.Length, endPoint);
}
}
if (attempts > internalAttempts && (_syncTypes.Contains(SyncType.All) || _syncTypes.Contains(SyncType.External)))
{
Logger.Debug("Tunnel " + Id + ", sent requests, waiting for sync response from external of " + peer);
udpClient.Send(syncBytes, syncBytes.Length, peer.ExternalEndPoint);
}
// Faciliatator is our last choice, only send here after 3 attempts at the other ones
if (attempts >= externalAttempts && (_syncTypes.Contains(SyncType.All) || _syncTypes.Contains(SyncType.Facilitator)))
{
Logger.Debug("Tunnel " + Id + ", sent requests, waiting for sync response from facilitator of " + peer);
udpClient.Send(syncBytes, syncBytes.Length, peer.FacilitatorRepeatedEndPoint);
}
attempts++;
} while (!_syncEvent.WaitOne(1000));
var activeIp = _lastSyncPacketIp;
Logger.Debug("Tunnel " + Id + ", synchronisation with " + activeIp + " established");
return activeIp;
}
