System.Net.Sockets.SocketPal.Shutdown C# (CSharp) Метод

        public static SocketError Shutdown(SafeCloseSocket handle, bool isConnected, bool isDisconnected, SocketShutdown how)
        {
            Interop.Error err = Interop.Sys.Shutdown(handle, how);
            if (err == Interop.Error.SUCCESS)
            {
                return SocketError.Success;
            }

            // If shutdown returns ENOTCONN and we think that this socket has ever been connected,
            // ignore the error. This can happen for TCP connections if the underlying connection
            // has reached the CLOSE state. Ignoring the error matches Winsock behavior.
            if (err == Interop.Error.ENOTCONN && (isConnected || isDisconnected))
            {
                return SocketError.Success;
            }

            return GetSocketErrorForErrorCode(err);
        }