Пример #1
0
        public int Release()
        {
            TaskNode head = null;
            int      count;

            do
            {
                lock (_lockObj)
                {
                    count = _currentCount;

                    if (_head == null)
                    {
                        ++_currentCount;
                        head = null;
                    }
                    else
                    {
                        head = _head;

                        if (_head == _tail)
                        {
                            _head = _tail = null;
                        }
                        else
                        {
                            _head = _head.Next;
                        }
                    }
                }
            } while (head != null && head.Task.IsCompleted);

            if (head != null)
            {
                if (head.Cancellation != default(CancellationTokenRegistration))
                {
                    head.Cancellation.Dispose();
                }
                Task.Run(() => head.TrySetResult(false));
            }

            return(count);
        }