LockCookie.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.Threading;
 
public struct LockCookie
{
    internal LockCookieFlags _flags;
 
    internal ushort _readerLevel;
 
    internal ushort _writerLevel;
 
    internal int _threadID;
 
    public override int GetHashCode()
    {
        return (int)(_flags + _readerLevel + _writerLevel + _threadID);
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj is LockCookie)
        {
            return Equals((LockCookie)obj);
        }
        return false;
    }
 
    public bool Equals(LockCookie obj)
    {
        if (_flags == obj._flags && _readerLevel == obj._readerLevel && _writerLevel == obj._writerLevel)
        {
            return _threadID == obj._threadID;
        }
        return false;
    }
 
    public static bool operator ==(LockCookie a, LockCookie b)
    {
        return a.Equals(b);
    }
 
    public static bool operator !=(LockCookie a, LockCookie b)
    {
        return !(a == b);
    }
}