c# - Windows 窗体 - 如何启动单独的线程并保持当前线程

Question

我有一个Windows应用程序和一个DLL(Windows窗体)，我试图打开(ActivationCheck)，我试图暂停当前线程打开一个新线程(ActivationCheck)等待该窗体事件返回true然后继续主线程。有人可以解释\告诉我我做错了什么 - 谢谢。

 static class Program
    {
        private static SplashScreen splash;
        private static bool quitApp;
        private static bool activationFinished;

        [STAThread]
        static void Main()
        {

        Thread thread = new Thread(ActivationCheck);
        thread.Start();



               do
               {
                   Thread.Sleep(1000);
               } while (activationFinished);

           if (!quitApp)
           {


               Thread.Sleep(0);
              // WizardRun();
               Application.Run(new Main(ref splash));
             }
}
}

     private static void ActivationCheck()
        {

            splash.SetStatus = "Checking License...";

            Guid productId = new Guid(Properties.Settings.Default.ProductId);
            Guid versionId = new Guid(Properties.Settings.Default.VersionId);

            Client.UI.EntryPoint entryPoint = new EntryPoint();

            activationFinished = false;

            Client.BLL.ProductActivation.GenerateTrialLicense(productId1, versionId2, EditionId3);
            entryPoint.IniatePlugin(productId, versionId);
            entryPoint.PluginFinished += new EventHandlers.PluginFinishEventHandler(entryPoint_PluginFinished);


        } 
  static void entryPoint_PluginFinished(bool forceQuit)
        {
            quitApp = forceQuit;
            activationFinished = true;


        }

Answer 1

你可以直接执行thread.Join()吗？但说实话，我不太确定启动第二个线程并暂停第一个线程的意义是什么；只在原来的线程上做工作？

代码的问题可能是activationFinished被保存在寄存器中；尝试将其标记为 volatile ，或者在访问此变量的两个位置使用锁。更好的是使用 ManualResetEvent 或类似的，并从激活代码中打开它。

using System;
using System.Threading;
static class Program
{
    static void Main()
    {
        new Thread(DoActivation).Start();
        Console.WriteLine("Main: waiting for activation");
        activation.WaitOne();
        Console.WriteLine("Main: and off we go...");
    }
    static void DoActivation(object state)
    {
        Console.WriteLine("DoActivation: activating...");
        Thread.Sleep(2000); // pretend this takes a while
        Console.WriteLine("DoActivation: activated");
        activation.Set();
        // any other stuff on this thread...
    }
    static ManualResetEvent activation = new ManualResetEvent(false);
}