[DotNetDevelopment] System.Threading.Timer

[rbr]

Hello,

I have an issue occurring in my application. I have a windows service
that is polling a table which is essentially a queue of events to
process. I have implemented the System.Threading.Timer in the OnStart
method to call a method that checks the queue for new events every 60
seconds. Within the callback method I set a variable value to the
current datetime the first time a set of events is grabbed. Then check
this vaiable at the start of the method each time it is called. The
code looks something like this:

public class demo
{
   private DateTime _timeObject;
   private System.Threading.Timer timerThread;

   protected override void OnStart(string[] args)
   {
       timerThread= new System.Threading.Timer(CallbackMethod, null,
60000, 1000);
   }

   private void CallbackMethod(object state)
   {
       if(_timerObject == DateTime.MinValue)
       {
            --Get Events
            _timerObject = DateTime.Now
            --Do stuff
            _timerObject = DateTime.MinValue
       }
   }
}

The idea behind this is that I want the CallbackMethod to finish
processing the first chunk of events before moving on to the next. For
some reason that I am unclear of, this is not what is happening. Each
time the Timer fires more events are grabbed.

Does anybody understand what I am missing? Any help would be greatly
appreciated.

Thanks in advance.

rbr