internal void Open(VersionToken versionToken)
{
if (Interlocked.CompareExchange(ref _free, 0, 1) == 1)
{
_versionToken = versionToken;
}
}
internal LockSlot(LockContext <T> context, int id, VersionToken versionToken)
{
_context = context ?? throw new ArgumentNullException(nameof(context));
_versionToken = versionToken;
Id = id;
}