/// <summary>
/// 增加任务。
/// </summary>
/// <param name="task">要增加的任务。</param>
public void AddTask(T task)
{
    LinkedListNode<T> current = m_WaitingTasks.First;
    while (current != null)
    {
        if (task.Priority > current.Value.Priority)
        {
            break;
        }

        current = current.Next;
    }

    if (current != null)
    {
        m_WaitingTasks.AddBefore(current, task);
    }
    else
    {
        m_WaitingTasks.AddLast(task);
    }
}