202 lines
7.3 KiB
C#
202 lines
7.3 KiB
C#
//
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// Volatile.cs
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//
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// Authors:
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// Marek Safar (marek.safar@gmail.com)
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//
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// Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System.Runtime.ConstrainedExecution;
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using System.Runtime.CompilerServices;
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namespace System.Threading
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{
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public
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static class Volatile
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{
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#region Boolean
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private struct VolatileBoolean { public volatile bool Value; }
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[Intrinsic]
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public static bool Read(ref bool location) =>
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Unsafe.As<bool, VolatileBoolean>(ref location).Value;
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[Intrinsic]
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public static void Write(ref bool location, bool value) =>
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Unsafe.As<bool, VolatileBoolean>(ref location).Value = value;
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#endregion
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#region Byte
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private struct VolatileByte { public volatile byte Value; }
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[Intrinsic]
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public static byte Read(ref byte location) =>
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Unsafe.As<byte, VolatileByte>(ref location).Value;
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[Intrinsic]
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public static void Write(ref byte location, byte value) =>
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Unsafe.As<byte, VolatileByte>(ref location).Value = value;
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#endregion
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#region Int16
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private struct VolatileInt16 { public volatile short Value; }
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[Intrinsic]
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public static short Read(ref short location) =>
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Unsafe.As<short, VolatileInt16>(ref location).Value;
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[Intrinsic]
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public static void Write(ref short location, short value) =>
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Unsafe.As<short, VolatileInt16>(ref location).Value = value;
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#endregion
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#region Int32
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private struct VolatileInt32 { public volatile int Value; }
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[Intrinsic]
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public static int Read(ref int location) =>
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Unsafe.As<int, VolatileInt32>(ref location).Value;
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[Intrinsic]
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public static void Write(ref int location, int value) =>
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Unsafe.As<int, VolatileInt32>(ref location).Value = value;
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#endregion
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#region IntPtr
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private struct VolatileIntPtr { public volatile IntPtr Value; }
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[Intrinsic]
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public static IntPtr Read(ref IntPtr location) =>
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Unsafe.As<IntPtr, VolatileIntPtr>(ref location).Value;
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[Intrinsic]
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public static void Write(ref IntPtr location, IntPtr value) =>
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Unsafe.As<IntPtr, VolatileIntPtr>(ref location).Value = value;
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#endregion
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#region SByte
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private struct VolatileSByte { public volatile sbyte Value; }
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[CLSCompliant(false)]
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[Intrinsic]
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public static sbyte Read(ref sbyte location) =>
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Unsafe.As<sbyte, VolatileSByte>(ref location).Value;
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[CLSCompliant(false)]
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[Intrinsic]
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public static void Write(ref sbyte location, sbyte value) =>
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Unsafe.As<sbyte, VolatileSByte>(ref location).Value = value;
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#endregion
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#region Single
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private struct VolatileSingle { public volatile float Value; }
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[Intrinsic]
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public static float Read(ref float location) =>
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Unsafe.As<float, VolatileSingle>(ref location).Value;
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[Intrinsic]
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public static void Write(ref float location, float value) =>
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Unsafe.As<float, VolatileSingle>(ref location).Value = value;
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#endregion
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#region UInt16
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private struct VolatileUInt16 { public volatile ushort Value; }
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[CLSCompliant(false)]
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[Intrinsic]
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public static ushort Read(ref ushort location) =>
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Unsafe.As<ushort, VolatileUInt16>(ref location).Value;
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[CLSCompliant(false)]
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[Intrinsic]
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public static void Write(ref ushort location, ushort value) =>
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Unsafe.As<ushort, VolatileUInt16>(ref location).Value = value;
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#endregion
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#region UInt32
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private struct VolatileUInt32 { public volatile uint Value; }
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[CLSCompliant(false)]
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[Intrinsic]
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public static uint Read(ref uint location) =>
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Unsafe.As<uint, VolatileUInt32>(ref location).Value;
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[CLSCompliant(false)]
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[Intrinsic]
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public static void Write(ref uint location, uint value) =>
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Unsafe.As<uint, VolatileUInt32>(ref location).Value = value;
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#endregion
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#region UIntPtr
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private struct VolatileUIntPtr { public volatile UIntPtr Value; }
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[CLSCompliant(false)]
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[Intrinsic]
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public static UIntPtr Read(ref UIntPtr location) =>
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Unsafe.As<UIntPtr, VolatileUIntPtr>(ref location).Value;
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[CLSCompliant(false)]
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[Intrinsic]
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public static void Write(ref UIntPtr location, UIntPtr value) =>
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Unsafe.As<UIntPtr, VolatileUIntPtr>(ref location).Value = value;
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#endregion
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#region T
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private struct VolatileObject { public volatile object Value; }
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[Intrinsic]
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public static T Read<T>(ref T location) where T : class =>
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Unsafe.As<T>(Unsafe.As<T, VolatileObject>(ref location).Value);
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[Intrinsic]
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public static void Write<T>(ref T location, T value) where T : class =>
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Unsafe.As<T, VolatileObject>(ref location).Value = value;
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#endregion
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
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public extern static long Read (ref long location);
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
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[CLSCompliant (false)]
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public extern static ulong Read (ref ulong location);
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
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public extern static double Read (ref double location);
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
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public extern static void Write (ref long location, long value);
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
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[CLSCompliant (false)]
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public extern static void Write (ref ulong location, ulong value);
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[MethodImplAttribute (MethodImplOptions.InternalCall)]
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[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
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public extern static void Write (ref double location, double value);
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}
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}
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