/** * Implements the SocketStateAction interface. This is called to trigger the ECB * in the SelectThread so we don't have to worry about multiple threads * accessing variables. */ public override void Start(SocketState ss) { object result = Result.Value; if (result != null) { TcpEdge new_edge = result as TcpEdge; if (new_edge != null) { //Tell the world about the new Edge: ss.AddEdge(new_edge); ECB(true, new_edge, null); } else { ECB(false, null, (Exception)result); } } else { //Try to make a new start: if (IPAddressQueue.Count <= 0) { ECB(false, null, new EdgeException("No more IP Addresses")); } else { Socket s = null; try { s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); s.Blocking = false; ss.AddCreationState(s, this); IPAddress ipaddr = (IPAddress)IPAddressQueue.Dequeue(); IPEndPoint end = new IPEndPoint(ipaddr, Port); //This is a hack because of a bug in MS.Net and Mono: //https://bugzilla.novell.com/show_bug.cgi?id=349449 //http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=332142 s.Bind(new IPEndPoint(IPAddress.Any, 0)); s.Connect(end); } catch (SocketException sx) { if (sx.SocketErrorCode != SocketError.WouldBlock) { if (s != null) { ss.TakeCreationState(s); } ECB(false, null, new EdgeException(false, "Could not Connect", sx)); } /* else Ignore the non-blocking socket error */ } } } }
protected void HandleReads(SocketState ss) { ArrayList readsocks = ss.ReadSocks; Socket listen_sock = ss.ListenSock; for (int i = 0; i < readsocks.Count; i++) { Socket s = (Socket)readsocks[i]; //See if this is a new socket if (s == listen_sock) { TcpEdge e = null; Socket new_s = null; try { new_s = listen_sock.Accept(); IPEndPoint rep = (IPEndPoint)new_s.RemoteEndPoint; new_s.LingerState = new LingerOption(true, 0); TransportAddress rta = TransportAddressFactory.CreateInstance(TransportAddress.TAType.Tcp, rep); if (ss.TAA.Authorize(rta) == TAAuthorizer.Decision.Deny) { //No thank you Dr. Evil Console.Error.WriteLine("Denying: {0}", rta); new_s.Close(); } else { //This edge looks clean TcpEdgeListener.SetSocketOpts(s); e = new TcpEdge(TEL, true, new_s); ss.AddEdge(e); //Handle closes in the select thread: CloseAction ca = new CloseAction(e, TEL.ActionQueue); e.CloseEvent += ca.CloseHandler; TEL.SendEdgeEvent(e); } } catch (Exception) { //Looks like this Accept has failed. Do nothing //Console.Error.WriteLine("New incoming edge ({0}) failed: {1}", new_s, sx); //Make sure the edge is closed if (e != null) { TEL.RequestClose(e); //Go ahead and forget about this socket. CloseAction ca = new CloseAction(e, null); ca.Start(ss); } else if (new_s != null) { //This should not be able to throw an exception: new_s.Close(); } } } else { ReceiveState rs = ss.GetReceiveState(s); if (rs != null && !rs.Receive()) { TEL.RequestClose(rs.Edge); //Go ahead and forget about this socket. CloseAction ca = new CloseAction(rs.Edge, null); ca.Start(ss); } } } }
protected void HandleReads(SocketState ss) { ArrayList readsocks = ss.ReadSocks; Socket listen_sock = ss.ListenSock; for(int i = 0; i < readsocks.Count; i++) { Socket s = (Socket)readsocks[i]; //See if this is a new socket if( s == listen_sock ) { TcpEdge e = null; Socket new_s = null; try { new_s = listen_sock.Accept(); IPEndPoint rep = (IPEndPoint)new_s.RemoteEndPoint; new_s.LingerState = new LingerOption (true, 0); TransportAddress rta = TransportAddressFactory.CreateInstance(TransportAddress.TAType.Tcp, rep); if( ss.TAA.Authorize(rta) == TAAuthorizer.Decision.Deny ) { //No thank you Dr. Evil Console.Error.WriteLine("Denying: {0}", rta); new_s.Close(); } else { //This edge looks clean TcpEdgeListener.SetSocketOpts(s); e = new TcpEdge(TEL, true, new_s); ss.AddEdge(e); //Handle closes in the select thread: CloseAction ca = new CloseAction(e, TEL.ActionQueue); e.CloseEvent += ca.CloseHandler; TEL.SendEdgeEvent(e); } } catch(Exception) { //Looks like this Accept has failed. Do nothing //Console.Error.WriteLine("New incoming edge ({0}) failed: {1}", new_s, sx); //Make sure the edge is closed if( e != null ) { TEL.RequestClose(e); //Go ahead and forget about this socket. CloseAction ca = new CloseAction(e, null); ca.Start(ss); } else if( new_s != null) { //This should not be able to throw an exception: new_s.Close(); } } } else { ReceiveState rs = ss.GetReceiveState(s); if( rs != null && !rs.Receive() ) { TEL.RequestClose(rs.Edge); //Go ahead and forget about this socket. CloseAction ca = new CloseAction(rs.Edge, null); ca.Start(ss); } } } }
/** * Implements the SocketStateAction interface. This is called to trigger the ECB * in the SelectThread so we don't have to worry about multiple threads * accessing variables. */ public override void Start(SocketState ss) { object result = Result.Value; if( result != null ) { TcpEdge new_edge = result as TcpEdge; if( new_edge != null ) { //Tell the world about the new Edge: ss.AddEdge(new_edge); ECB(true, new_edge, null); } else { ECB(false, null, (Exception)result); } } else { //Try to make a new start: if( IPAddressQueue.Count <= 0 ) { ECB(false, null, new EdgeException("No more IP Addresses")); } else { Socket s = null; try { s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); s.Blocking = false; ss.AddCreationState(s, this); IPAddress ipaddr = (IPAddress)IPAddressQueue.Dequeue(); IPEndPoint end = new IPEndPoint(ipaddr, Port); //This is a hack because of a bug in MS.Net and Mono: //https://bugzilla.novell.com/show_bug.cgi?id=349449 //http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=332142 s.Bind(new IPEndPoint(IPAddress.Any, 0)); s.Connect(end); } catch(SocketException sx) { if( sx.SocketErrorCode != SocketError.WouldBlock ) { if( s != null ) { ss.TakeCreationState(s); } ECB(false, null, new EdgeException(false, "Could not Connect", sx)); } /* else Ignore the non-blocking socket error */ } } } }