C#.NET TaskServiceBase

 

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.ServiceProcess;
using System.Timers;

namespace Pub.Class {
    public abstract class TaskServiceBase : ServiceBase {

        private Timer timer = new Timer();

        public TaskServiceBase(TimeSpan interval) {
            timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
            timer.Interval = interval.TotalMilliseconds;
            timer.AutoReset = false;
            timer.Enabled = false;
        }

        protected override void OnStart(string[] args) { timer.Start(); }

        protected override void OnStop() { timer.Stop(); }

        protected abstract void RunTask();

        private void timer_Elapsed(object sender, ElapsedEventArgs e) {
            timer.Stop();
            try { RunTask(); } finally { timer.Start(); }
        }
        
    }
}