Windows服务中的线程中计时器 [英] Timer within Thread within Windows Service

问题描述

我无法弄清楚如何处理这个问题的最好办法。

I cant figure out how to proceed the best way with this problem.

现在我有一个窗口服务，唯一的任务是从数据库中收集数据具体的DSN，然后如果数据是有效的发送一封电子邮件。该服务包含蜱每5分钟再予并执行上述任务的定时器。

Right now I have a windows service which only task is to gather data from a database with a specific DSN and then send out an email if the data is valid. The service contains a timer which ticks every 5 minuts and performs the tasks above.

现在我需要重新编写Windows服务能够在1个多跑DSN。
我想使窗口服务中多个线程，然后再次让每个线程内seperat计时器。
这是一个好主意，怎么能这样做？我想避免为每个DSN Windows服务。

Now I need to re-write the windows service to be able to run on more than 1 DSN. I was thinking of making several threads inside the windows service and then again have a seperat timer inside each thread. Is this a good idea and how can this be done? I want to avoid having a windows service for each DSN.

生病尝试绘制它，如果我没有任何意义。

Ill try to draw it if I dont make any sense

                             Windows Service

线程1（DSN1）--- --------------------------线程2（DSN2）-------------------- --Thread3（DSN3）结果
定时器（蜱每隔X分钟再予）-----------------定时器（下同）--------- ----------------定时器（相同的）结果
逻辑（）-------------------- - - - - - - - - - - - - -逻辑 - - - - - - - - - - - - ---------逻辑（）

Thread1(DSN1)-----------------------------Thread2(DSN2)----------------------Thread3(DSN3)
Timer(ticks every X minuts)-----------------Timer(same)-------------------------Timer(same)
Logic()---------------------------------------------Logic---------------------------------Logic()

希望我的问题是有道理的：）

Hope my problem makes sense :)

推荐答案

据我所知每个定时器代表本身就是一个线程。 。认识到这一点，我会尝试动态地为每一个给定的DSN定时器对象

As far as I Know each timer represents a thread on its own. Knowing this, I would try to dynamically create timer objects for each given dsn.

public partial class Service1 : ServiceBase
{
    public Service1()
    {
        InitializeComponent();
    }

    private List<GetDataFromDSN> list = null;
    protected override void OnStart(string[] args)
    {
        list = new List<GetDataFromDSN>();
        // assume args contains your given dsn values
        foreach (string dsn in args)
        {
            GetDataFromDSN newObj = new GetDataFromDSN();
            newObj.DSN = dsn;
            list.Add(newObj);
            newObj.Start();
        }
    }
}

public class GetDataFromDSN
{
    public string DSN { get; set; }
    private Timer timer = null;
    private double interval = 1000*60*5; // 5 minutes interval
    public GetDataFromDSN()
    {
        // init your object
        timer = new Timer(interval);
        timer.Elapsed +=new ElapsedEventHandler(timer_Elapsed);
    }
    private void timer_Elapsed(object sender, ElapsedEventArgs e)
    {
        // do what ever you want
    }
    public void Start() // or even make timer public
    {
        timer.Start();
    }
    public void Stop()
    {
        timer.Stop();
    }
}

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