windows-services - 让 Topshelf 服务在启动时运行一次，然后停止

Question

我编写了一个 TopShelf 服务/控制台应用程序，它似乎按预期运行，除了我希望它在启动时运行一次，然后禁用自身直到下一次启动/重新启动。

我希望这会奏效：

class MyServiceClass
{
    public void Start()
    {
        // do the things that need doing

        this.Stop();
    }

    public void Stop()
    {
    }

但这不起作用，大概是因为 this.Stop() 命令用于清理，而不是导致服务停止。

我的 Program.cs 看起来像这样：

// Uses Topshelf: http://topshelf-project.com/
// Guided by: http://www.ordina.nl/nl-nl/blogs/2013/maart/building-windows-services-with-c-and-topshelf/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

using Topshelf;

namespace MyNamespace
{
    class Program
    {
        static void Main(string[] args)
        {
            HostFactory.Run(hostConfigurator =>
            {
                hostConfigurator.Service<MyServiceClass>(serviceConfigurator =>
                {
                    serviceConfigurator.ConstructUsing(() => new MyServiceClass());
                    serviceConfigurator.WhenStarted(myServiceClass => myServiceClass.Start());
                    serviceConfigurator.WhenStopped(myServiceClass => myServiceClass.Stop());
                });

                hostConfigurator.RunAsLocalSystem();

                hostConfigurator.SetDisplayName("MyService");
                hostConfigurator.SetDescription("Does stuff.");
                hostConfigurator.SetServiceName("MyService");
                hostConfigurator.StartAutomatically();
                hostConfigurator.EnableShutdown();
            });
        }
    };
}

如何在执行结束时停止服务？

更新：根据 Damien 的意见，我现在有：

public class MyServiceClass
{
    private readonly Task task;
    private HostControl hostControl;

    public MyServiceClass()
    {
        task = new Task(DoWork);
    }

    private void DoWork()
    {
        Console.WriteLine("Listen very carefully, I shall say this only once");
        hostControl.Stop();
    }

    public void Start(HostControl hostControl)
    {
        // so we can stop the service at the end of the check
        this.hostControl = hostControl;

        // start the DoWork thread
        task.Start();
    }

    public void Stop()
    {

    }

};

和更新的 Program.cs

class Program
{
    static void Main(string[] args)
    {

        HostFactory.Run(hostConfigurator =>
        {
            hostConfigurator.Service<MyServiceClass>((serviceConfigurator =>
            {
                serviceConfigurator.ConstructUsing(() => new MyServiceClass());
                serviceConfigurator.WhenStarted((myServiceClass, hostControl) => myServiceClass.Start(hostControl));
                serviceConfigurator.WhenStopped(myServiceClass => myServiceClass.Stop());
            });    /* compiler thinks there's a ")" missing from this line */

            hostConfigurator.RunAsLocalSystem();

            hostConfigurator.SetDisplayName("MyService");
            hostConfigurator.SetDescription("Does stuff.");
            hostConfigurator.SetServiceName("MyService");
            hostConfigurator.StartAutomatically();
            hostConfigurator.EnableShutdown();
        });

    }
};

但是，这不会编译。我的编译器建议在我的注释上（或周围）缺少“）”（如上面的代码所示），但添加右括号只会添加到错误列表中。

我觉得我很接近了……有什么想法吗？

Answer 1

最终得到这个工作：

public class MyServiceClass : ServiceControl
{
    private readonly Task task;
    private HostControl hostControl;

    public MyServiceClass()
    {
        task = new Task(DoWork);
    }

    private void DoWork()
    {
        Console.WriteLine("Listen very carefully, I shall say this only once");
        //hostControl.Stop();
    }

    public bool Start(HostControl hostControl)
    {
        // so we can stop the service at the end of the check
        this.hostControl = hostControl;

        // start the DoWork thread
        task.Start();

        return true;
    }

    public bool Stop(HostControl hostControl)
    {
        return true;
    }

};

和

class Program
{
    static void Main(string[] args)
    {

        HostFactory.Run(hostConfigurator =>
        {
            hostConfigurator.Service<MyServiceClass>(serviceConfigurator =>
            {
                serviceConfigurator.ConstructUsing(() => new MyServiceClass());
                serviceConfigurator.WhenStarted((myServiceClass, hostControl) => myServiceClass.Start(hostControl));
                serviceConfigurator.WhenStopped((myServiceClass, hostControl) => myServiceClass.Stop(hostControl));
            });

            hostConfigurator.RunAsLocalSystem();

            hostConfigurator.SetDisplayName("MyService");
            hostConfigurator.SetDescription("Does stuff.");
            hostConfigurator.SetServiceName("MyService");
            hostConfigurator.StartAutomatically();
            hostConfigurator.EnableShutdown();
        });

    }
};

我的第二次尝试在第一次提到 serviceConfigurator 时有一个备用的“（”，然后我需要将我的 void Start 和 Stop 函数转换为 bool 函数。希望这对某人有所帮助。