public void Update(long newTailIndex)
{
QueueState oldState;
QueueState newState;
do
{
oldState = _currentState;
newState = new QueueState(newTailIndex);
} while (Interlocked.CompareExchange(ref _currentState, newState, oldState) != oldState);
oldState?.Update(newState);
}
private QueueStateMonitor(long initialTailIndex)
{
_currentState = new QueueState(initialTailIndex);
}
