/// <summary>
/// Binds to socket and spawns the networking thread
/// </summary>
public void Start()
{
if (m_status != NetPeerStatus.NotRunning)
{
// already running! Just ignore...
LogWarning("Start() called on already running NetPeer - ignoring.");
return;
}
m_status = NetPeerStatus.Starting;
// fix network thread name
if (m_configuration.NetworkThreadName == "Lidgren network thread")
{
int pc = Interlocked.Increment(ref s_initializedPeersCount);
m_configuration.NetworkThreadName = "Lidgren network thread " + pc.ToString();
}
InitializeNetwork();
// start network thread
m_networkThread = new Thread(new ThreadStart(NetworkLoop));
m_networkThread.Name = m_configuration.NetworkThreadName;
m_networkThread.IsBackground = true;
m_networkThread.Start();
// send upnp discovery
if (m_upnp != null)
{
m_upnp.Discover(this);
}
// allow some time for network thread to start up in case they call Connect() or UPnP calls immediately
NetUtility.Sleep(50);
}
/// <summary>
/// Binds to socket and spawns the networking thread
/// </summary>
public void Start()
{
if (m_status != NetPeerStatus.NotRunning || m_status == NetPeerStatus.Starting)
{
// already running! Just ignore...
LogWarning("Start() called on already running NetPeer - ignoring.");
return;
}
m_status = NetPeerStatus.Starting;
/*
* // fix network thread name
* if (m_configuration.NetworkThreadName == "Lidgren network thread")
* {
* var pc = Interlocked.Increment(ref s_initializedPeersCount);
* m_configuration.NetworkThreadName = "Lidgren network thread " + pc.ToString();
* }*/
InitializeNetwork();
// send upnp discovery
m_upnp?.Discover(this);
// allow some time for network thread to start up in case they call Connect() or UPnP calls immediately
NetUtility.Sleep(100);
}
/// <summary>
/// Add a forwarding rule to the router using UPnP
/// </summary>
/// <param name="externalPort">The external, WAN facing, port</param>
/// <param name="description">A description for the port forwarding rule</param>
/// <param name="internalPort">The port on the client machine to send traffic to</param>
public bool ForwardPort(int externalPort, string description, int internalPort = 0)
{
if (!CheckAvailability())
{
return(false);
}
IPAddress mask;
var client = NetUtility.GetMyAddress(out mask);
if (client == null)
{
return(false);
}
if (internalPort == 0)
{
internalPort = externalPort;
}
try
{
SOAPRequest(m_serviceUrl,
"<u:AddPortMapping xmlns:u=\"urn:schemas-upnp-org:service:" + m_serviceName + ":1\">" +
"<NewRemoteHost></NewRemoteHost>" +
"<NewExternalPort>" + externalPort.ToString() + "</NewExternalPort>" +
"<NewProtocol>" + ProtocolType.Udp.ToString().ToUpper(System.Globalization.CultureInfo.InvariantCulture) + "</NewProtocol>" +
"<NewInternalPort>" + internalPort.ToString() + "</NewInternalPort>" +
"<NewInternalClient>" + client.ToString() + "</NewInternalClient>" +
"<NewEnabled>1</NewEnabled>" +
"<NewPortMappingDescription>" + description + "</NewPortMappingDescription>" +
"<NewLeaseDuration>0</NewLeaseDuration>" +
"</u:AddPortMapping>",
"AddPortMapping");
m_peer.LogDebug("Sent UPnP port forward request");
NetUtility.Sleep(50);
}
catch (Exception ex)
{
m_peer.LogWarning("UPnP port forward failed: " + ex.Message);
return(false);
}
return(true);
}
internal void Discover(NetPeer peer)
{
string str =
"M-SEARCH * HTTP/1.1\r\n" +
"HOST: 239.255.255.250:1900\r\n" +
"ST:upnp:rootdevice\r\n" +
"MAN:\"ssdp:discover\"\r\n" +
"MX:3\r\n\r\n";
m_status = UPnPStatus.Discovering;
byte[] arr = System.Text.Encoding.UTF8.GetBytes(str);
m_peer.LogDebug("Attempting UPnP discovery");
peer.Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true);
peer.RawSend(arr, 0, arr.Length, new NetEndPoint(NetUtility.GetBroadcastAddress(), 1900));
peer.Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, false);
// allow some extra time for router to respond
NetUtility.Sleep(50);
m_discoveryResponseDeadline = NetTime.Now + 6.0; // arbitrarily chosen number, router gets 6 seconds to respond
m_status = UPnPStatus.Discovering;
}
private void ExecutePeerShutdown()
{
VerifyNetworkThread();
LogDebug("Shutting down...");
// disconnect and make one final heartbeat
var list = new List <NetConnection>(m_handshakes.Count + m_connections.Count);
lock (m_connections)
{
foreach (var conn in m_connections)
{
if (conn != null)
{
list.Add(conn);
}
}
}
lock (m_handshakes)
{
foreach (var hs in m_handshakes.Values)
{
if (hs != null && list.Contains(hs) == false)
{
list.Add(hs);
}
}
}
// shut down connections
foreach (NetConnection conn in list)
{
conn.Shutdown(m_shutdownReason);
}
FlushDelayedPackets();
// one final heartbeat, will send stuff and do disconnect
Heartbeat();
NetUtility.Sleep(10);
lock (m_initializeLock)
{
try
{
if (m_socket != null)
{
try
{
m_socket.Shutdown(SocketShutdown.Receive);
}
catch (Exception ex)
{
LogDebug("Socket.Shutdown exception: " + ex.ToString());
}
try
{
m_socket.Close(2); // 2 seconds timeout
}
catch (Exception ex)
{
LogDebug("Socket.Close exception: " + ex.ToString());
}
}
}
finally
{
m_socket = null;
m_status = NetPeerStatus.NotRunning;
LogDebug("Shutdown complete");
// wake up any threads waiting for server shutdown
if (m_messageReceivedEvent != null)
{
m_messageReceivedEvent.Set();
}
}
m_lastSocketBind = float.MinValue;
m_receiveBuffer = null;
m_sendBuffer = null;
m_unsentUnconnectedMessages.Clear();
m_connections.Clear();
m_connectionLookup.Clear();
m_handshakes.Clear();
}
return;
}
public void ExecutePeerShutdown()
{
Console.WriteLine("Network shutdown enter");
// disconnect and make one final heartbeat
var list = new List <NetConnection>(_handshakeManager.Handshakes.Count + m_connections.Count);
lock (m_connections)
{
foreach (var conn in m_connections)
{
if (conn != null)
{
list.Add(conn);
}
}
}
foreach (var hs in _handshakeManager.Handshakes.Values)
{
if (hs != null && list.Contains(hs) == false)
{
list.Add(hs);
}
}
// shut down connections
foreach (NetConnection conn in list)
{
conn.Shutdown(m_shutdownReason);
}
FlushDelayedPackets();
// one final heartbeat, will send stuff and do disconnect
PeerUpdate();
NetUtility.Sleep(10);
lock (m_initializeLock)
{
try
{
if (m_socket != null)
{
try
{
// shutdown socket send and recieve handlers.
m_socket.Shutdown(SocketShutdown.Both);
}
catch (Exception e)
{
LogDebug(e.ToString());
}
finally
{
// close connection, if present
m_socket.Close(2);
}
}
}
catch (Exception ex)
{
LogDebug("socket shutdown method exception: " + ex.ToString());
throw;
}
finally
{
NetPeerManager.RemovePeer(this);
// wake up any threads waiting for server shutdown
m_messageReceivedEvent?.Set();
m_lastSocketBind = float.MinValue;
m_receiveBuffer = null;
m_sendBuffer = null;
m_unsentUnconnectedMessages?.Clear();
m_connections?.Clear();
m_connectionLookup?.Clear();
_handshakeManager.Handshakes?.Clear();
_handshakeManager = null;
m_status = NetPeerStatus.NotRunning;
LogDebug("Shutdown complete");
Console.WriteLine("Shutdown network peer properly");
}
}
return;
}
