private static unsafe IntPtr CreateListeningSocket()
{
var socketFlags = SocketFlags.WSA_FLAG_REGISTERED_IO | SocketFlags.WSA_FLAG_OVERLAPPED;
var listeningSocket = WinSock.WSASocket(AddressFamilies.AF_INET, SocketType.SOCK_STREAM, Protocol.IPPROTO_TCP, IntPtr.Zero, 0, socketFlags);
if (listeningSocket == (IntPtr)WinSock.Consts.INVALID_SOCKET)
{
WinSock.ThrowLastWsaError();
return(IntPtr.Zero);
}
var tcpNoDelay = -1;
WinSock.setsockopt(listeningSocket, WinSock.Consts.IPPROTO_TCP, WinSock.Consts.TCP_NODELAY, (char *)&tcpNoDelay, sizeof(int));
var reuseAddr = 1;
WinSock.setsockopt(listeningSocket, WinSock.Consts.SOL_SOCKET, WinSock.Consts.SO_REUSEADDR, (char *)&reuseAddr, sizeof(int));
return(listeningSocket);
}