Program to check a task based on time interval.

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Hi,

I am trying to find out the best alternative to windows service application. i have some task to be executed continuously based on time interval.

I don't want to go with windows installer or not to create separate thread to achieve it.

Please suggest some best approach to achieve this...

my actual requirement is i am using RabbitMQ for message transmission. it has send and receive queues. Receive queue continuously to be monitored for checking the availability of messages in the queue. for this i need to write some thing like windows service component.

Please suggest some best approach so that i can monitor Receive Message Queue continuously.

Thanks

Posted 20-May-15 21:48pm

KVPalem

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Andy Lanng · Accepted Answer · 2015-05-20T22:28:00

Solution 1

so: No Service & no extra threads?

Polling:

C#

DateTime _time = DateTime.Now;
...


private void MessagePoll(int intervalSeconds){

 Timespan timespan = Timespan.FromSeconds(intervalSeconds)

 //infinite thread.  You have no way to stop this without a second thread
 while(true){
  //If the time interval has not been reached - wait
  while(DateTime.Now-_time < timespan ){
   Thread.Sleep(1000);
  }
  //Do the work
  PollMessages();
  reset the time.
  _time = DateTime.Now;
 }

}

You can also just use Thread.Sleep(intervalSeconds*1000)

Posted 20-May-15 22:28pm

Andy Lanng

Updated 20-May-15 22:30pm

v2

Comments

KVPalem 21-May-15 4:59am

Thanks for your response.
Can we use above code in as part of WCF Service or Web Application? Do we need to call MessagePoll method in Application_Start? I mean after deploying service or application in IIS web site does above code still valid? Dont we require any separate installer?

Thanks

Andy Lanng 21-May-15 5:02am

If you run this in the same thread as the web application then the application could freeze. You need a threaded system.

I suggest you use a BackgroundWorker. It's a simple single background thread that will run this code without causing your application to freeze.

If you use the BackgroundWorker then starting it in the Application_Start is fine