CODEWITHSUNDEEP
c#multithreadingwindows-servicestask-parallel-library
Nikhil
Nikhil

Reputation: 1151

How do I start a service thread using the TPL?

In the past, I've created the main thread of a service using the Thread object. Now I'm attempting to update it to the TPL. Unfortunately, the service ends after one pass in my loop. What do I need to do to keep the Task alive?

    protected override void OnStart(string[] args)
    {
        _workerThread = Task.Run(() =>
        {
            while (true)
            {
                Console.WriteLine("go");
                Thread.Sleep(10000);
            }
        });
    }

More info:

In order to debug the service, I've set a flag to start the service as a console app if Environment.UserInteractive is set to true. So I guess I need it to keep going in console mode as well as a service.

Upvotes: 1

Views: 109

Answers (1)

svick
svick

Reputation: 244928

When you create a new Thread, it is a foreground thread by default (its IsBackground is set to false). What that means is that your console application won't end until the thread does, even if Main returns before that.

Tasks, on the other hand, run on the thread pool, which contains only background threads. This means that when your Main returns, the application will exit, even if there is some Task still running.

You can fix this by Waiting on the Task at the end of your Main.

Upvotes: 1

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