15

我有很多 Web 服务调用(异步),在回调中,我会将结果绘制到 Excel。我想同步绘图方法。所以我使用以下,但是,从我在 Visual Studio 中追踪,每次,lock(locker) 都是成功的,并且有很多线程在运行 clearcommentIfany,plot。我无法弄清楚为什么这没有按预期工作!谢谢

private readonly object locker = new object();

void ProcessPlot()
{
    lock (locker)
    {
        Debug.WriteLine("currentThreadID: " + Thread.CurrentThread.ManagedThreadId);
        //Helper.Dispatcher.Invoke(new AddClearCommentDelegate(ClearCommentIfAny));
        ClearCommentIfAny();

        if (Response.status != Status.COMPLETE)
        {
            ErrorMessage = ManipulateStatusMsg(Response);
            //Helper.Dispatcher.Invoke(new AddClearCommentDelegate(AddCommentToCell));
            AddCommentToCell();
        }
        else // COMPLETE
        {
            // TODO: Convert this into factory pattern
            Debug.WriteLine("ReportBuilder.Dispatcher's address " + Helper.GetAddress(Helper.Dispatcher));
            //Helper.Dispatcher.Invoke(new PlotDelegate(Plot), Response);
            Plot(Response);
        }               
    } 
}

public void DataRequestJobFinished(DataRequestResponse response)
{
    try
    {
        if (Request.IsRequestCancelled)
        {
            Request.FormulaCell.Dispose();
            return;
        }

        Response = response;

        //if (response.status != Status.COMPLETE)
        //{
        //    ErrorMessage = ManipulateStatusMsg(response);
        //}
        //else // COMPLETE
        //{
        //    // TODO: Convert this into factory pattern
        //    PlotDelegate plotDelegate = Plot;
        //    Debug.WriteLine("ReportBuilder.Dispatcher's address " + Helper.GetAddress(Helper.Dispatcher));
        //    Helper.Dispatcher.Invoke(plotDelegate, response);
        //    //Plot(response);                 
        //}
        var t = new Thread(ProcessPlot);
        t.Start();
        //ProcessPlot();
    }
    catch (Exception e)
    {
        ErrorMessage = e.Message;
        MIMICShared.Helper.LogError(e);
    }
    finally
    {
        //TODO: PutReportBuilderInQueue(this);
        ReadyForPlot = true;
        //Request.FormulaCell.Dispose(); move this after plot
        UnityContainer.Resolve<IEventAggregator>().GetEvent<DataRefreshEvent>().Publish(ID);
    }
}
4

1 回答 1

39

我怀疑您的问题是您的锁是实例成员而不是静态(类型级别)成员。

假设每个线程都有自己的包含类的实例,那么它也会有自己的储物柜实例——这不是你想要的。

试试这个声明:

private static readonly object locker = new object();

包含 static 关键字现在使该对象实例存在于类型级别,即在您的类的所有实例之间共享。

于 2012-04-13T15:17:42.220 回答