Windows 服务如何确定其服务名称? [英] How can a Windows Service determine its ServiceName?

问题描述

我已经看过了，但找不到一个应该是简单的问题:

I've looked and couldn't find what should be a simple question:

Windows 服务如何确定为其启动的 ServiceName?

我知道安装可以破解注册表并添加命令行参数，但从逻辑上讲，它应该是不必要的，因此这个问题.

I know the installation can hack at the registry and add a command line argument, but logically that seems like it should be unnecessary, hence this question.

我希望比注册表黑客更干净地运行单个二进制文件的多个副本.

I'm hoping to run multiple copies of a single binary more cleanly than the registry hack.

编辑:

这是用 C# 编写的.我的应用程序 Main() 入口点执行不同的操作，具体取决于命令行参数:

This is written in C#. My apps Main() entry point does different things, depending on command line arguments:

• 安装或卸载服务.命令行可以提供一个非默认的ServiceName 并且可以更改工作线程的数量.
• 作为命令行可执行文件运行(用于调试)，
• 作为Windows 服务"运行.在这里，它创建了我的 ServiceBase 派生的实例类，然后调用System.ServiceProcess.ServiceBase.Run(instance);

• Install or Uninstall the service. The command line can provide a non-default ServiceName and can change the number of worker threads.
• Run as a command-line executable (for debugging),
• Run as a "Windows Service". Here, it creates an instance of my ServiceBase-derived class, then calls System.ServiceProcess.ServiceBase.Run(instance);

目前，安装步骤会将服务名称和线程数附加到注册表中的 ImagePath，以便应用程序可以确定它的 ServiceName.

Currently, the installation step appends the service name and thread count to the ImagePath in the registry so the app can determine it's ServiceName.

推荐答案

来自:https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=387024

这是一个 WMI 解决方案.覆盖 ServiceBase.ServiceMainCallback() 也可能有效，但这似乎对我有用...

Here is a WMI solution. Overriding the ServiceBase.ServiceMainCallback() might also work, but this seems to work for me...

    protected String GetServiceName()
    {
        // Calling System.ServiceProcess.ServiceBase::ServiceNamea allways returns
        // an empty string,
        // see https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=387024

        // So we have to do some more work to find out our service name, this only works if
        // the process contains a single service, if there are more than one services hosted
        // in the process you will have to do something else

        int processId = System.Diagnostics.Process.GetCurrentProcess().Id;
        String query = "SELECT * FROM Win32_Service where ProcessId = " + processId;
        System.Management.ManagementObjectSearcher searcher =
            new System.Management.ManagementObjectSearcher(query);

        foreach (System.Management.ManagementObject queryObj in searcher.Get()) {
            return queryObj["Name"].ToString();
        }

        throw new Exception("Can not get the ServiceName");
    } 

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