如何通过使用c#.net传递参数来设置动态线程的计时器 [英] how to set timer for dynamic thread by passing parameters by using c#.net

问题描述

我正在使用一个窗口服务应用程序，该应用程序具有动态线程生成的逻辑，该逻辑将用于为每个单独的属性ID从xml文件创建一个基于线程的单独数据提取，现在我要担心的是运行这些每个线程在不同的时间间隔内，一个线程每5分钟触发一次，另一个线程每天在触发模式，最后一个线程应该按月触发，请您能帮我一个忙吗?当我启动一个窗口服务时，所有线程都将启动，即使在工作完成后，这些生成的线程也不应消失，我们需要根据以上所述为这些线程设置一个计时器，我们该如何执行好的建议...

hi i am using a window service application which was having a logic of dynamic threading generation which will use to create a separate thread based fetching data from the xml file for each individual attribute id, now my concern is i want to run those each threads in the different time intervals, one thread use to fire for every 5 min , another thread use to fire for every day mode, last thread should to be fire by monthly manner, can you please help me is it possible what i am thinking, when i start up a window service, all the thread to be start , these generated thread should not die even for the time being work was completed, we need set up a timer for those threads based on above i said,how can we perform that kindly advice...

在下面，我粘贴了相同的动态线程逻辑代码:

here below i have pasted the same code of dynamic threading logic:

我想知道如何为每个不同的线程设置计时器

i want to know how set timer for each different thread

static void Main(string[] args)
{
    var currentDir = Directory.GetCurrentDirectory();
    var xDoc = XDocument.Load(string.Format(Path.Combine(currentDir, "Hosts.xml")));
    var threads = new List<Thread>();

    foreach (XElement host in xDoc.Descendants("Host"))
    {
        var hostID = (int)host.Attribute("id");
        var extension = (string)host.Element("Extension");
        var folderPath = (string)host.Element("FolderPath");
        var thread = new Thread(DoWork)
        {
            Name = string.Format("samplethread{0}", hostID)
        };

        thread.Start(new FileInfo
        {
            HostId = hostID,
            Extension = extension,
            FolderPath = folderPath
        });

        threads.Add(thread);
    }

   // Carry on with your other work, then wait for worker threads
   threads.ForEach(t => t.Join());
}

static void DoWork(object threadState)
{
    var fileInfo = threadState as FileInfo;

    if (fileInfo != null)
    {
         // Do stuff here
    }        
}

class FileInfo
{
    public int HostId { get; set; }
    public string Extension { get; set; }
    public string FolderPath { get; set; }
}

推荐答案

您的线程将运行，然后再次停止.已停止的线程无法再次启动.您需要某种类型的循环来保持线程运行.

Your thread would run and then stop again. A thread that has stopped cannot be started again. you need some type of loop to keep the thread running.

这是对您的代码的修改，其中我编写了一个类来在您的DoWork函数周围包裹这样的循环:

Here is a modification of your code where i wrote a class to wrap such a loop around you DoWork function:

using System;
using System.Collections.Generic;
using System.IO;
using System.Xml.Linq;
using System.Threading;

namespace App
{
    class FileInfo
    {
        public int HostId { get; set; }
        public string Extension { get; set; }
        public string FolderPath { get; set; }
    }

    class ThreadSet
    {
        public ThreadStart action;
        public FileInfo file;
        public string name;
        public Boolean shouldrun = true;
        public Thread thread;

        public ThreadSet(XElement host, Action<Object> threadaction)
        {
            int hostID = (int)host.Attribute("id");
            name = string.Format("samplethread{0}", hostID);
            file = new FileInfo
                {
                    HostId = hostID,
                    Extension = (string)host.Element("Extension"),
                    FolderPath = (string)host.Element("FolderPath")
                };
            action = () =>
            {
                while (shouldrun)
                {
                    threadaction(file);
                }
            };
            thread = new Thread(action);
            thread.Name = name;
        }

        public void Start()
        {
            thread.Start();
        }

        public void Join()
        {
            shouldrun = false;
            thread.Join(5000);
        }
    }


    class Program
    {
        static void Main(string[] args)
        {
            var currentDir = Directory.GetCurrentDirectory();
            var xDoc = XDocument.Load(string.Format(Path.Combine(currentDir, "Hosts.xml")));
            var threads = new List<ThreadSet>();

            foreach (XElement host in xDoc.Descendants("Host"))
            {
                ThreadSet set = new ThreadSet(host, DoWork);
                set.Start();
                threads.Add(set);
            }
            //Carry on with your other work, then wait for worker threads
            threads.ForEach(t => t.Join());
        }

        static void DoWork(object threadState)
        {
            var fileInfo = threadState as FileInfo;
            if (fileInfo != null)
            {
                //Do stuff here
            }
        }
    }
}

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