public Boolean Deactive(params SafeID[] tIDs)
        {
            if (!this.Available)
            {
                return(false);
            }
            else if (!this.IsActive)
            {
                return(false);
            }
            else if (null == tIDs)
            {
                return(false);
            }
            else if (0 == tIDs.Length)
            {
                return(false);
            }

            lock (m_Locker)
            {
                foreach (SafeID tID in tIDs)
                {
                    State tTarget = m_ActiveFSMSet.Find(tID);
                    if (null != tTarget)
                    {
                        m_ActiveFSMSet.Remove(tID);
                        IFSM tFSM = tTarget as IFSM;
                        if (null != tFSM)
                        {
                            do
                            {
                                tFSM.RequestStop();
                            }while (tFSM.IsActive);
                            tFSM.Reset();
                        }
                        m_FreeStateSet.Add(tTarget);
                    }

                    tTarget = m_ActiveStateSet.Find(tID);
                    if (null != tTarget)
                    {
                        tTarget.StopSignal.Set();

                        m_ActiveStateSet.Remove(tID);
                        m_FreeStateSet.Add(tTarget);
                    }
                }
            }

            RefreshState();

            return(true);
        }
        public override Status Task(params object[] tArgs)
        {
            if (!this.Available)
            {
                return(m_Status);
            }


            do
            {
                switch (m_Status)
                {
                case Status.FSM_STARTING:
                    m_Status = Status.FSM_WORKING;
                    break;

                case Status.FSM_CLOSING:
                case Status.FSM_PENDING:
                case Status.FSM_WORKING:
                    break;

                case Status.FSM_ERROR:
                case Status.FSM_INVALID:
                case Status.FSM_CANCELLED:
                case Status.FSM_CLOSED:
                case Status.FSM_IDLE:
                default:
                    return(m_Status);
                }

                //! stop event
                if (m_Event.WaitOne(0))
                {
                    lock (m_Locker)
                    {
                        foreach (State tItem in m_ActiveStateSet)
                        {
                            if (null == tItem)
                            {
                                continue;
                            }
                            else if (!tItem.Available)
                            {
                                continue;
                            }
                            if ((tItem.IsActive) || (tItem.Status == Status.FSM_IDLE))
                            {
                                tItem.StopSignal.Set();
                            }
                        }

                        foreach (State tItem in m_ActiveFSMSet)
                        {
                            if (null == tItem)
                            {
                                continue;
                            }
                            else if (!tItem.Available)
                            {
                                continue;
                            }
                            IFSM tFSM = tItem as IFSM;
                            if (null == tFSM)
                            {
                                continue;
                            }
                            if ((tFSM.IsActive) || (tFSM.Status == Status.FSM_IDLE))
                            {
                                tFSM.RequestStop();
                            }
                        }
                        m_Event.Reset();
                    }
                }

                m_StateChanged = false;                     //!< reset state change flag


                lock (m_Locker)
                {
                    State[] tActiveStates = m_ActiveStateSet.ToArray();
                    foreach (State tItem in tActiveStates)
                    {
                        if (null == tItem)
                        {
                            continue;
                        }
                        else if (!tItem.Available)
                        {
                            continue;
                        }

                        switch (tItem.Task(m_Args))
                        {
                        case Status.FSM_PENDING:
                        case Status.FSM_CLOSING:
                        case Status.FSM_STARTING:
                        case Status.FSM_WORKING:

                            break;

                        case Status.FSM_ERROR:
                            //! encountered an unhandled error
                            if (ErrorHandler(m_Args))
                            {
                                continue;
                            }
                            m_Status = Status.FSM_ERROR;
                            return(m_Status);

                        case Status.FSM_INVALID:
                        case Status.FSM_CANCELLED:
                        case Status.FSM_CLOSED:
                        case Status.FSM_IDLE:
                        default:
                            m_FreeStateSet.Add(tItem);
                            m_ActiveStateSet.Remove(tItem.ID);
                            m_StateChanged = true;
                            break;
                        }
                    }

                    tActiveStates = m_ActiveFSMSet.ToArray();
                    foreach (State tItem in tActiveStates)
                    {
                        if (null == tItem)
                        {
                            continue;
                        }
                        else if (!tItem.Available)
                        {
                            continue;
                        }
                        switch (tItem.Task(m_Args))
                        {
                        case Status.FSM_ERROR:
                            m_Status = Status.FSM_ERROR;
                            return(m_Status);

                        case Status.FSM_CLOSING:
                        case Status.FSM_PENDING:
                        case Status.FSM_STARTING:
                        case Status.FSM_WORKING:
                            break;

                        case Status.FSM_INVALID:
                        case Status.FSM_CANCELLED:
                        case Status.FSM_CLOSED:
                        case Status.FSM_IDLE:
                        default:
                            m_FreeStateSet.Add(tItem);
                            m_ActiveFSMSet.Remove(tItem.ID);

                            m_StateChanged = true;

                            IFSM tFSM = tItem as IFSM;
                            if (null != tFSM)
                            {
                                tFSM.Reset();
                            }

                            do
                            {
                                miniFSM tminiFSM = tItem as miniFSM;
                                if (null == tminiFSM)
                                {
                                    break;
                                }
                                else if (null == tminiFSM.ReturnStateID)
                                {
                                    break;
                                }
                                this.TriggerFSM(tminiFSM.ReturnStateID, m_Args);
                            }while (false);
                            break;
                        }
                    }
                }

                RefreshState();
            }while (m_StateChanged);

            return(m_Status);
        }
        public Status RequestStop(int tMilionsecond)
        {
            lock (m_Event)
            {
                switch (m_Status)
                {
                case Status.FSM_CLOSING:

                    lock (m_Locker)
                    {
                        if ((m_ActiveFSMSet.Count == 0) && (m_ActiveStateSet.Count == 0))
                        {
                            if (0 == m_FreeStateSet.Count)
                            {
                                m_Status = Status.FSM_INVALID;
                            }
                            else
                            {
                                m_Status = Status.FSM_CLOSED;
                            }
                            break;
                        }
                    }

                    //! force to stop
                    if (m_StopWatch.ElapsedMilliseconds >= tMilionsecond)
                    {
                        lock (m_Locker)
                        {
                            if (m_ActiveStateSet.Count > 0)
                            {
                                foreach (State tItem in m_ActiveStateSet)
                                {
                                    if (null == tItem)
                                    {
                                        continue;
                                    }
                                    else if (!tItem.Available)
                                    {
                                        continue;
                                    }
                                    m_FreeStateSet.Add(tItem);
                                }
                            }
                            m_ActiveStateSet.Clear();

                            if (m_ActiveFSMSet.Count > 0)
                            {
                                foreach (State tItem in m_ActiveFSMSet)
                                {
                                    if (null == tItem)
                                    {
                                        continue;
                                    }
                                    else if (!tItem.Available)
                                    {
                                        continue;
                                    }

                                    IFSM tFSMItem = tItem as IFSM;
                                    if (null == tFSMItem)
                                    {
                                        continue;
                                    }

                                    do
                                    {
                                        tFSMItem.RequestStop(tMilionsecond);
                                    }while (tFSMItem.IsActive);
                                    tFSMItem.Reset();

                                    m_FreeStateSet.Add(tItem);
                                }
                            }
                            m_ActiveFSMSet.Clear();
                            m_StopWatch.Stop();
                            m_Status = Status.FSM_CLOSED;
                        }
                    }

                    break;

                case Status.FSM_CANCELLED:
                case Status.FSM_CLOSED:
                case Status.FSM_IDLE:
                case Status.FSM_INVALID:
                    break;

                case Status.FSM_ERROR:
                case Status.FSM_PENDING:
                case Status.FSM_STARTING:
                case Status.FSM_WORKING:
                    m_Status = Status.FSM_CLOSING;
                    m_Event.Set();
                    m_StopWatch.Reset();
                    m_StopWatch.Start();
                    //! raising closing event
                    if (null != FSMClosing)
                    {
                        try
                        {
                            FSMClosing.Invoke(this, m_Args);
                        }
                        catch (Exception)
                        {
                        }
                    }

                    break;

                default:
                    break;
                }
            }

            return(m_Status);
        }