/// <summary>
/// Request time from NTP server and calls callback (if success)
/// </summary>
/// <param name="ntpServerAddress">NTP Server address</param>
/// <param name="port">port</param>
/// <param name="onRequestComplete">callback (called from other thread!)</param>
public static void RequestTimeFromNTP(string ntpServerAddress, int port, Action <DateTime?> onRequestComplete)
{
NetSocket socket = null;
var ntpEndPoint = new NetEndPoint(ntpServerAddress, port);
NetManager.OnMessageReceived onReceive = (data, length, code, point) =>
{
if (!point.Equals(ntpEndPoint) || length < 48)
{
return;
}
socket.Close();
ulong intPart = (ulong)data[40] << 24 | (ulong)data[41] << 16 | (ulong)data[42] << 8 | (ulong)data[43];
ulong fractPart = (ulong)data[44] << 24 | (ulong)data[45] << 16 | (ulong)data[46] << 8 | (ulong)data[47];
var milliseconds = (intPart * 1000) + ((fractPart * 1000) / 0x100000000L);
onRequestComplete(new DateTime(1900, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds((long)milliseconds));
};
//Create and start socket
socket = new NetSocket(onReceive);
socket.Bind(IPAddress.Any, IPAddress.IPv6Any, 0, false, true, true);
//Send request
int errorCode = 0;
var sendData = new byte[48];
sendData[0] = 0x1B;
var sendCount = socket.SendTo(sendData, 0, sendData.Length, ntpEndPoint, ref errorCode);
if (errorCode != 0 || sendCount != sendData.Length)
{
onRequestComplete(null);
}
}
/// <summary>
/// NetManager constructor
/// </summary>
/// <param name="listener">Network events listener</param>
/// <param name="maxConnections">Maximum connections (incoming and outcoming)</param>
public NetManager(INetEventListener listener, int maxConnections)
{
//_logicThread = new Thread(UpdateLogic) { Name = "LogicThread", IsBackground = true };
_socket = new NetSocket(ReceiveLogic);
_netEventListener = listener;
_netEventsQueue = new FastQueue <NetEvent>();
_netEventsPool = new Stack <NetEvent>();
NetPacketPool = new NetPacketPool();
NatPunchModule = new NatPunchModule(this);
Statistics = new NetStatistics();
_peers = new NetPeerCollection(maxConnections);
_connectingPeers = new HashSet <NetEndPoint>();
_maxConnections = maxConnections;
_updateTimeFilter = new long[3];
// Precreate all needed Merge Packets
NetPacketPool.PoolLimit = maxConnections * 100;
//NetPacketPool.Prepool(maxConnections * 2, MtuStartIdx >= 0 && MtuStartIdx < NetConstants.PossibleMtu.Length ? NetConstants.PossibleMtu[MtuStartIdx] : (NetConstants.MaxPacketSize - NetConstants.FragmentHeaderSize));
//NetPacketPool.Prepool(maxConnections * 20, 16);
}