// Needed for NET40
#if !NET_4_6
using System;
using System.Threading;

namespace LinqInternal.Threading
{
    [System.Diagnostics.DebuggerNonUserCode]
    internal static partial class ThreadingHelper
    {
        internal const int _sleepCountHint = 10;
        private const int _maxTime = 200;

        public static void MemoryBarrier()
        {
#if NETCOREAPP1_1
            Interlocked.MemoryBarrier();
#else
            Thread.MemoryBarrier();
#endif
        }

        internal static long Milliseconds(long ticks)
        {
            return ticks / TimeSpan.TicksPerMillisecond;
        }

        internal static long TicksNow()
        {
            return DateTime.Now.Ticks;
        }
    }
}
#endif