Question

如何中止，暂停或恢复线程？

导致我的运行时错误。Abort()（对象引用未设置为对象实例。）并且.Resume()和.Suspend()存在Obselete错误。

我尝试了Run()一个Thread.Sleep（1000）但是我意识到它不起作用，因为它不是所用线程的实例。

知道我该怎么办？

THX

CODE：

class FolderStats : IFolderStats
{
    Thread MyThread = null;
    private bool x;
    string Rootpath;
    List<string> MyList = new List<string>();
    Folder FD = new Folder();

    public void Connect(string rootpath)
    {

        Console.WriteLine(Statuses.Waiting);
        Thread.Sleep(1000);

        FD.Path = rootpath;
        Rootpath = rootpath;

        Console.WriteLine(Statuses.Connected);
        Thread.Sleep(1000);
    }

    public void Start()
    {
        MyThread = new Thread(Run);
        MyThread.Start();
        Console.WriteLine("Starting the Search");
    }          
    public void Stop()
    {
        MyThread.Abort();
        Console.WriteLine("Console Aborted. Please press Enter to Exit");
    }
    public void Pause()
    {
        this.x = false;
        PauseResume();
        Console.WriteLine("Console Paused.");
    }
    public void Resume()
    {
        this.x = true;
        PauseResume();
        Console.WriteLine("Console Resumed.");
    }
    private void PauseResume()
    {
        while (this.x == false)
        {
            Thread.Sleep(100);
        }
    }
    public void Run()
    {

        MyThread = new Thread(Start);
        if (!MyList.Contains(Rootpath))
        {
            MyList.Add(Rootpath);
            var subDirs = Directory.GetDirectories(Rootpath, "*");
            var Data = Directory.GetFiles(Rootpath, "*");

            foreach (string dir in subDirs)
            {
                Thread.Sleep(2000);
                Rootpath = dir;
                Console.WriteLine(dir);

                Run();
            }
            foreach (string file in Data)
            {
                Thread.Sleep(2000);
                if (!MyList.Contains(file))
                {
                    MyList.Add(file);
                    Console.WriteLine(file);
                }
            }
        }
        FD.NumberOfFiles = MyList.Count; 
    }

Answer 1

不要使用Thread，而是使用Task。您可以运行新任务：

Task.Run(()=>...);

您可以使用CancellationToken / CancellationTokenSource来实现让您的任务取消：

https://msdn.microsoft.com/en-us/library/system.threading.cancellationtokensource%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396

如果你想暂停你的任务，你可以尝试实现这样的事情：

https://blogs.msdn.microsoft.com/pfxteam/2013/01/13/cooperatively-pausing-async-methods/

C＃Multithreading .abort（）。swapus（）。reusme（）

1 个答案: