Amib.Threading.Internal.WorkItem.GetWorkItemState C# (CSharp) Метод

        private WorkItemState GetWorkItemState()
        {
            lock (this)
            {
                if (WorkItemState.Completed == _workItemState)
                {
                    return _workItemState;
                }

                long nowTicks = DateTime.UtcNow.Ticks;

                if (WorkItemState.Canceled != _workItemState && nowTicks > _expirationTime)
                {
                    _workItemState = WorkItemState.Canceled;
                }

                if (WorkItemState.InProgress == _workItemState)
                {
                    return _workItemState;
                }

                if (CanceledSmartThreadPool.IsCanceled || CanceledWorkItemsGroup.IsCanceled)
                {
                    return WorkItemState.Canceled;
                }

                return _workItemState;
            }
        }