How to delete Task correctly

Question

Have I in some way delete this Task or it is self-destroyed?

Task.Factory.StartNew(() => { DoSomeJob(); }, TaskCreationOptions.LongRunning);

or it is better to use it like

var t = Task.Factory.StartNew(() => { DoSomeJob(); }, TaskCreationOptions.LongRunning);

and somehow later delete/nullize t?

Thank you!

related: [Is it considered acceptable to not call Dispose() on a TPL Task object?](http://stackoverflow.com/questions/3734280/is-it-considered-acceptable-to-not-call-dispose-on-a-tpl-task-object) — Paolo Moretti, Oct 12 '12 at 13:43

score 6 · Accepted Answer · answered Oct 12 '12 at 13:40

6

you do not need to delete it, it will be disposed eventually....

answered Oct 12 '12 at 13:40

Z .

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Cool. Are there any MSDN link that says that? – NoWar Oct 12 '12 at 13:41
5

Here's a link that provides a fuller explanation: http://blogs.msdn.com/b/pfxteam/archive/2012/03/25/10287435.aspx – Eric Olsson Oct 12 '12 at 13:44

score 3 · Answer 2 · answered Oct 12 '12 at 13:43

If you mean can you cancel it, or abort it, or in some other way stop it from running before it finishes; no, not really (as it currently is). You would need to create a cancellation token source, pass the token to the Task, and then the method running in the task would need to periodically check to ensure that it hasn't been canceled.

What you could do is to wait for some period of time and cancel that waiting operation. That would allow you to continue running the "next" task that you need to run. Note that if you did this, without adding the work I discussed above where the method in the task itself checks for deletion, then the method will still run to completion, you'll just stop waiting on it earlier.

How to delete Task correctly

4 Answers4