// <https://gist.github.com/louis-e/888d5031190408775ad130dde353e0fd>
public SockMgr GetUdpListener()
{
Socket listener = new Socket(_options.ListenerIpAddress.AddressFamily,
SocketType.Dgram, ProtocolType.Udp);
listener.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.ReuseAddress, true);
listener.Bind(new IPEndPoint(_options.ListenerIpAddress, _options.ListenerPort));
SockBase sockBase = new SockBase(listener, SocketRole.Listener, true);
SockMgr sockMgr = new SockMgr(sockBase, (IProtocolFactory)_options.ProtocolFactory.Clone());
return(sockMgr);
}
public SockMgr GetUdpClient()
{
Socket sock = new Socket(_options.ListenerIpAddress.AddressFamily,
SocketType.Dgram, ProtocolType.Udp);
SockBase sockBase = new SockBase(sock, SocketRole.Client, false);
SockMgr sockMgr = new SockMgr(sockBase, (IProtocolFactory)_options.ProtocolFactory.Clone());
// TODO: use BeginConnect instead
sock.Connect(new IPEndPoint(_options.ListenerIpAddress, _options.ListenerPort));
return(sockMgr);
}
public void BuildTcpClient(SockMgr.SockMgrConnectEventHandler connectCallback, object callbackState = null)
{
Socket sock = new Socket(_options.ListenerIpAddress.AddressFamily,
SocketType.Stream, ProtocolType.Tcp);
if (_options.ClientPort >= 0)
{
sock.Bind(new IPEndPoint(IPAddress.Any, _options.ClientPort));
}
SockBase sockBase = new SockBase(sock, SocketRole.Client, false);
SockMgr sockMgr = new SockMgr(sockBase, (IProtocolFactory)_options.ProtocolFactory.Clone());
sockMgr.SockMgrConnectEvent += OnSocketConnect;
sockMgr.StartConnect(new IPEndPoint(_options.ListenerIpAddress, _options.ListenerPort), _options.TimesToTry, connectCallback, callbackState);
}
public SockMgr GetTcpListener()
{
IPAddress ipAddress = IPAddress.Parse("0.0.0.0");
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, _options.ListenerPort);
// Create a TCP/IP socket.
Socket listener = new Socket(ipAddress.AddressFamily,
SocketType.Stream, ProtocolType.Tcp);
// makes restarting a socket become possible
// https://blog.csdn.net/limlimlim/article/details/23424855
listener.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
SockBase sockBase = new SockBase(listener, SocketRole.Listener, true);
SockMgr sockMgr = new SockMgr(sockBase, (IProtocolFactory)_options.ProtocolFactory.Clone());
listener.Bind(localEndPoint);
listener.Listen(4);
return(sockMgr);
}
private void AcceptCallback(IAsyncResult ar)
{
try
{
AcceptStateObject state = (AcceptStateObject)ar.AsyncState;
// Get the socket that handles the client request.
Socket listener = state.workSocket;
Socket handler = listener.EndAccept(ar);
SockBase sockBase = new SockBase(handler, SocketRole.Client, true);
sockBase.IsConnected = true;
sockBase.StartReceive();
SocketAcceptEvent?.Invoke(this, new SocketAcceptEventArgs(state, sockBase));
if (state.externalCallback != null)
{
state.externalCallback(this, new SocketAcceptEventArgs(state, sockBase));
}
listener.BeginAccept(
new System.AsyncCallback(AcceptCallback), state);
}
catch (ObjectDisposedException) { } // listener closed
}
public SocketConnectEventArgs(ConnectStateObject state, SockBase handler)
{
State = state; Handler = handler;
}
public SocketAcceptEventArgs(AcceptStateObject state, SockBase handler)
{
State = state; Handler = handler;
}