Beispiel #1
0
        // 工作线程每一轮循环的实质性工作
        public override void Worker()
        {
            try
            {
                PropertyTask task       = null;
                int          nRestCount = 0;

                // 取出第一个元素
                if (this.m_lock.TryEnterWriteLock(m_nLockTimeout) == false)
                {
                    throw new LockException("锁定尝试中超时");
                }
                try
                {
                    if (this._tasks.Count == 0)
                    {
                        return;
                    }
                    task = this._tasks[0];
                    this._tasks.RemoveAt(0);
                    nRestCount = this._tasks.Count;
                }
                finally
                {
                    this.m_lock.ExitWriteLock();
                }

                try
                {
                    lock (syncRoot)
                    {
                        this._currentTask = task;
                    }

                    if (task.LoadData() == false)
                    {
                        return;
                    }

                    task.ShowData();

                    lock (syncRoot)
                    {
                        this._currentTask = null;
                    }
                }
                finally
                {
                    if (nRestCount > 0)
                    {
                        this.Activate();
                    }
                }
            }
            catch (Exception ex)
            {
                Program.MainForm.WriteErrorLog("PropertyTaskList Worker() 出现异常: " + ExceptionUtil.GetDebugText(ex));
                Program.MainForm.ReportError("dp2circulation 调试信息", "PropertyTaskList Worker() 出现异常: " + ExceptionUtil.GetDebugText(ex));
            }
        }
Beispiel #2
0
        // 加入一个任务到列表中
        // parameters:
        //      bClearBefore    清除以前积累的任务。也要中断插入前正在做的任务
        public void AddTask(PropertyTask task, bool bClearBefore)
        {
            if (this.m_lock.TryEnterWriteLock(500) == false)   // m_nLockTimeout
            {
                throw new LockException("锁定尝试中超时");
            }
            try
            {
                if (bClearBefore)
                {
                    this._tasks.Clear();

                    lock (syncRoot)
                    {
                        if (_currentTask != null)
                        {
                            Task.Factory.StartNew(() => CancelTask(_currentTask));
                        }
                    }
                }

                task.Container = this;
                this._tasks.Add(task);
            }
            finally
            {
                this.m_lock.ExitWriteLock();
            }

            // 触发任务开始执行
            this.Activate();
        }
Beispiel #3
0
 void CancelTask(PropertyTask task)
 {
     if (task != null)
     {
         task.Cancel();
     }
 }
Beispiel #4
0
        // 工作线程每一轮循环的实质性工作
        public override void Worker()
        {
            try
            {
                PropertyTask task = null;
                int nRestCount = 0;

                // 取出第一个元素
                if (this.m_lock.TryEnterWriteLock(m_nLockTimeout) == false)
                    throw new LockException("锁定尝试中超时");
                try
                {
                    if (this._tasks.Count == 0)
                        return;
                    task = this._tasks[0];
                    this._tasks.RemoveAt(0);
                    nRestCount = this._tasks.Count;
                }
                finally
                {
                    this.m_lock.ExitWriteLock();
                }

                try
                {
                    lock (syncRoot)
                    {
                        this._currentTask = task;
                    }

                    if (task.LoadData() == false)
                        return;

                    task.ShowData();

                    lock (syncRoot)
                    {
                        this._currentTask = null;
                    }
                }
                finally
                {
                    if (nRestCount > 0)
                        this.Activate();
                }
            }
            catch (Exception ex)
            {
                this.MainForm.WriteErrorLog("PropertyTaskList Worker() 出现异常: " + ExceptionUtil.GetDebugText(ex));
                this.MainForm.ReportError("dp2circulation 调试信息", "PropertyTaskList Worker() 出现异常: " + ExceptionUtil.GetDebugText(ex));
            }
        }
Beispiel #5
0
        // 加入一个任务到列表中
        // parameters:
        //      bClearBefore    清除以前积累的任务。也要中断插入前正在做的任务
        public void AddTask(PropertyTask task, bool bClearBefore)
        {
            if (this.m_lock.TryEnterWriteLock(500) == false)   // m_nLockTimeout
                throw new LockException("锁定尝试中超时");
            try
            {
                if (bClearBefore)
                {
                    this._tasks.Clear();

                    lock (syncRoot)
                    {
                        if (_currentTask != null)
                            Task.Factory.StartNew(() => CancelTask(_currentTask));
                    }
                }

                task.Container = this;
                this._tasks.Add(task);
            }
            finally
            {
                this.m_lock.ExitWriteLock();
            }

            // 触发任务开始执行
            this.Activate();
        }
Beispiel #6
0
 void CancelTask(PropertyTask task)
 {
     if (task != null)
         task.Cancel();
 }