// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics;
using System.Runtime;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
 
namespace System.Threading
{
    public sealed partial class Thread
    {
        // the closest analog to Sleep(0) on Unix is sched_yield
        internal static void UninterruptibleSleep0() => Thread.Yield();
 
#if !CORECLR
        private static void SleepInternal(int millisecondsTimeout) => WaitSubsystem.Sleep(millisecondsTimeout);
#endif
 
        // sched_getcpu doesn't exist on all platforms. On those it doesn't exist on, the shim returns -1
        internal static int GetCurrentProcessorNumber() => Interop.Sys.SchedGetCpu();
    }
}