System.Net.WebSockets.WebSocketBase.CanHandleExceptionDuringClose C# (CSharp) Method

        private bool CanHandleExceptionDuringClose(Exception error)
        {
            Debug.Assert(error != null, "'error' MUST NOT be NULL.");

            if (State != WebSocketState.Closed)
            {
                return false;
            }

            return error is OperationCanceledException ||
                error is WebSocketException ||
                error is SocketException ||
                error is HttpListenerException ||
                error is IOException;
        }