System.Threading.Thread.Thread.ToTimeoutMilliseconds C# (CSharp) Method

        private static int ToTimeoutMilliseconds(TimeSpan timeout)
        {
            var timeoutMilliseconds = (long)timeout.TotalMilliseconds;
            if (timeoutMilliseconds < -1 || timeoutMilliseconds > int.MaxValue)
            {
                throw new ArgumentOutOfRangeException(nameof(timeout), SR.ArgumentOutOfRange_TimeoutMilliseconds);
            }
            return (int)timeoutMilliseconds;
        }