disposables where ownership can be transferred

owned.cs

public struct Owned<T> : IDisposable
    where T : class, IDisposable
{
    private T _value;

    public Owned(T value)
    {
        _value = value;
    }

    public T Value => _value;

    public T Exchange(T newValue) => Interlocked.Exchange(ref _value, newValue);

    public T Release() => Exchange(null);

    public Owned<T> Move() => Owned.Create(Release());

    public void Dispose() => Release()?.Dispose();
}

public static class Owned
{
    public static Owned<T> Create<T>(T value)
        where T : class, IDisposable
    {
        return new Owned<T>(value);
    }
}