C# Application.Run（form）永远不会返回（在使用System:：Management之后）

我有一个类库程序集，一旦加载就会打开一个表单（form1），当提示时，form1会打开其他表单（form2）。每个窗体在单独的线程中运行，这是因为在每个窗体中运行一个flashweave应用程序，为了提高性能，我需要在单独的线程中运行它们。 如果我使用c语言编写的托管加载程序加载库，一切正常。 如果我使用混合clr/c++程序集加载库，当form2关闭时，Application.Run（）将不会返回，从而导致许多线程卡住。 我还尝试使用Thread.abort（）强制中止线程，但线程仍然没有中止。 如果我关闭form1应用程序，run（）返回，它的线程可以停止。 我还尝试打开简单的空表单，而不是没有任何flashwave对象的form2，但仍然没有返回

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

也许问题与我收到的消息有关：

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

CLR无法转换 从COM上下文0x197060到COM 上下文0x196ef0持续60秒。这个 拥有目标的线程 上下文/公寓是最有可能的 进行非泵送等待或 处理一个非常长的运行时间 无泵送窗操作 信息。这种情况普遍存在 对绩效产生负面影响，并可能 甚至导致应用程序变得 无响应或内存使用 随着时间的推移不断积累。到 避免这个问题，所有的单 螺纹单元（STA）螺纹 应该使用泵送等待原语 （如CoWaitForMultipleHandles）和 在长时间内定期发送消息 运行操作

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

关于form2开幕式：

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

卡住线程的堆栈跟踪：

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

ntdll.dll_ZwWaitForMultipleObjects@20() +0x15字节的ntdll.dll_ZwWaitForMultipleObjects@20() +0x15字节的KernelBase.dll_WaitForMultipleObjectsEx@20() +0x36字节内核32.dll_WaitForMultipleObjectsExImplementation@20() +0x8e字节user32.dll_RealMsgWaitForMultipleObjectsEx@20() +0xe2字节ole32.dll！CCliModalLoop:：BlockFn（）+ 0x96字节
ole32.dll_CoWaitForMultipleHandles@20() -0x51b9字节mscorwks.dll！NT5WaitRoutine（）+0x39 字节mscorwks.dll！MsgWaitHelper（） +0x97字节mscorwks.dll！线程：：DoAppropriateAptStateWait（） -0xf32e5字节mscorwks.dll！线程：：DoAppropriateWaitWorker（） +0x104字节mscorwks.dll！线程：：DoAppropriateWait（） +0x40字节的mscorwks.dll！CLREvent:：WaitEx（）+ 0x1438a9字节
mscorwks.dll！CLREvent:：Wait（）+0x17 字节
mscorwks.dll！WKS:：GCHeap:：FinalizerThreadWait（） +0xec字节mscorwks.dll！ReleaseRCWsInCaches（）+ 0xe34fd字节
mscorwks.dll！ReleaseRCWsInCachesNoThrow（） +0x67字节的mscorwks.dll！线程：：CleanupCOMState（） +0x1b8f83字节mscorwks.dll！线程：：OnThreadTerminate（） +0x46字节mscorwks.dll！销毁线程（）+0x3b 字节
mscorwks.dll！ThreadNative:：KickOffThread（） +0xf2字节mscorwks.dll！线程：：intermediateThreadProc（） +0x46字节内核32.dll@BaseThreadInitThunk@12() +0x12字节

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

关于显示第一个线程的代码：

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

//c++ code
        Assembly::form^ f= gcnew Assembly::form() ; 
        f->Load();
        gcroot<Assembly::form^>* dsa3_gc_p= new gcroot<Assembly::form^>(f);
        this->obMainLib = (void *)dsa3_gc_p;
//------------------------
//The c++ loader just calls the Load() method
//c#library   
        public void Load()
                {
                    FormThread = new Thread(new ThreadStart(this.Start));
                    FormThread.Name = "T7";
                    FormThread.IsBackground = true;
                    FormThread.SetApartmentState(ApartmentState.STA);
                    FormThread.Start();    
                }
        private void Start()
                {
                    Config = GlobalConfig.GetConfig(GlobalConfig.ConfigurationFile);
                    HttpInterface = new DHttpInterface(Config);
                    Lobby = new FormLobby(HttpInterface, false);


                    WorkerThread = new Thread(new ThreadStart(this.Start));
                    WorkerThread.Name = "T6";
                    WorkerThread.IsBackground = true;
                    WorkerThread.ApartmentState = ApartmentState.STA;
                    WorkerThread.Start();

                    Application.Run(Lobby);
                    Config.SaveToDisk();
                }

---

谢谢。

您是否可能是从MTA线程调用OpenTable，而InvokeRequest返回true，因此它不会创建另一个STA线程，而是直接调用MTA线程上的Application.Run（）

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

---

尝试从STA线程调用Application.Run（）。

我终于找到了方法。我创建了一个新的AppDomain，其中我运行了获取cpu序列号的方法，然后卸载了该域，从而卸载了导致问题的System:：Management库

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

引用类MarshalByRefType:MarshalByRefObject { 公众： //通过代理调用此方法

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

std::string GetCPUID()
{
    //char * chp = (char *) System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(R671::R671::Value()).ToPointer();
    std::string lsCPUID = "";
    //return lsCPUID.assign(chp);
    try
    {
        System::Management::ManagementObjectCollection^ moReturn  = nullptr;
        System::Management::ManagementObjectSearcher^ moSearch  ;

        moSearch = gcnew System::Management::ManagementObjectSearcher("Select * from Win32_Processor");

        moReturn = moSearch->Get();
        for each ( System::Management::ManagementObject^ mo in moReturn )
        {
            char * chp = (char *) System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(mo["ProcessorID"]->ToString()).ToPointer();
            lsCPUID.assign(chp);
        }
    }
    catch(System::Exception^ ex )
    {
    }
    AppDomainSetup^ ads = AppDomain::CurrentDomain->SetupInformation;
    String^ str = String::Format("AppName={0}, AppBase={1}, ConfigFile={2}", 
        ads->ApplicationName, 
        ads->ApplicationBase, 
        ads->ConfigurationFile);

    char * chp = (char *) System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(str).ToPointer();
    lsCPUID.assign(chp);
    return lsCPUID;
}

}

private void OpenTable()
{
            if (!this.InvokeRequired)
            {

                Thread TableRun = new Thread(new ThreadStart(OpenTable));
                TableRun.ApartmentState = ApartmentState.STA;
                TableRun.IsBackground = false;
                TableRun.Name = "T2"; 
                TableRun.Start();

                return;
            }
            try
            {
                FormTable T = new FormTable(;
                T.MyThread = Thread.CurrentThread;
                Application.Run(T);
            }
            catch (Exception ex)
            {

            }
}

---

MyThread如何不抛出NullReferenceException？为什么要抛出？但是你可以跳过它。。。我只是后来添加了它，以提供对线程的引用，并试图粗暴地中止它，但它不起作用。哎呀，我修剪了一些不有用的部分，还修剪了FormTable被实例化的部分。。。我将编辑它。如果添加C++代码来加载程序集并显示第一个窗体，这将是有益的。使用调试器的线程窗口来了解它正在做什么。启用Microsoft symbol服务器以获得良好的堆栈跟踪。否，所有线程都是STA线程。而且该线程不能是MTA线程，因为它是form1的线程。