InterlockedBitVector32.cs

Go to the documentation of this file.

using System.Diagnostics.CodeAnalysis;
using System.Threading;
 
namespace System.ComponentModel;
 
internal struct InterlockedBitVector32
{
    private int _data;
 
    public bool this[int bit]
    {
        get
        {
            return (Volatile.Read(ref _data) & bit) == bit;
        }
        set
        {
            if (value)
            {
                Interlocked.Or(ref _data, bit);
            }
            else
            {
                Interlocked.And(ref _data, ~bit);
            }
        }
    }
 
    public void DangerousSet(int bit, bool value)
    {
        _data = (value ? (_data | bit) : (_data & ~bit));
    }
 
    public static int CreateMask()
    {
        return CreateMask(0);
    }
 
    public static int CreateMask(int previous)
    {
        if (previous != 0)
        {
            return previous << 1;
        }
        return 1;
    }
 
    public override bool Equals([NotNullWhen(true)] object o)
    {
        if (o is InterlockedBitVector32 interlockedBitVector)
        {
            return _data == interlockedBitVector._data;
        }
        return false;
    }
 
    public override int GetHashCode()
    {
        return base.GetHashCode();
    }
}