#if MONO

using System;
using System.Runtime;
using System.Runtime.ConstrainedExecution;
using System.Security;
namespace System.Threading
{
    [__DynamicallyInvokable]
    public static class Volatile
    {
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static bool Read(ref bool location)
        {
            bool result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static sbyte Read(ref sbyte location)
        {
            sbyte result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static byte Read(ref byte location)
        {
            byte result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static short Read(ref short location)
        {
            short result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static ushort Read(ref ushort location)
        {
            ushort result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static int Read(ref int location)
        {
            int result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static uint Read(ref uint location)
        {
            uint result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static long Read(ref long location)
        {
            return Interlocked.CompareExchange(ref location, 0L, 0L);
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries"), SecuritySafeCritical]
        public unsafe static ulong Read(ref ulong location)
        {
            fixed (ulong* ptr = &location)
            {
                return (ulong)Interlocked.CompareExchange(ref *(long*)ptr, 0L, 0L);
            }
        }
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static IntPtr Read(ref IntPtr location)
        {
            IntPtr result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static UIntPtr Read(ref UIntPtr location)
        {
            UIntPtr result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static float Read(ref float location)
        {
            float result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static double Read(ref double location)
        {
            return Interlocked.CompareExchange(ref location, 0.0, 0.0);
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries"), SecuritySafeCritical]
        public static T Read<T>(ref T location) where T : class
        {
            T result = location;
            Thread.MemoryBarrier();
            return result;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref bool location, bool value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref sbyte location, sbyte value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref byte location, byte value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref short location, short value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref ushort location, ushort value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref int location, int value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref uint location, uint value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref long location, long value)
        {
            Interlocked.Exchange(ref location, value);
        }
        [__DynamicallyInvokable, CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries"), SecuritySafeCritical]
        public unsafe static void Write(ref ulong location, ulong value)
        {
            fixed (ulong* ptr = &location)
            {
                Interlocked.Exchange(ref *(long*)ptr, (long)value);
            }
        }
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref IntPtr location, IntPtr value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [CLSCompliant(false), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref UIntPtr location, UIntPtr value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref float location, float value)
        {
            Thread.MemoryBarrier();
            location = value;
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]
        public static void Write(ref double location, double value)
        {
            Interlocked.Exchange(ref location, value);
        }
        [__DynamicallyInvokable, ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries"), SecuritySafeCritical]
        public static void Write<T>(ref T location, T value) where T : class
        {
            Thread.MemoryBarrier();
            location = value;
        }
    }
}

#endif