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Question

Can a ThreadAbortException be raised during Thread.Sleep ?

Answer 1

A:

You can abort the thread from another thread only. That is, you should store the Thread reference somewhere and then call .Abort from a thread other than the one which is sleeping.

Kerido 2010-03-03 11:01:33

Of course. That's how it works. But will that other thread be able to interrupt a sleeping thread before the end of the sleep time span ?

2010-03-03 11:02:11

Yes, of course. That's by design.

Kerido 2010-03-03 11:04:25

There's nothing preventing you from calling `Thread.CurrentThread.Abort()`

Brian Rasmussen 2010-03-03 11:10:41

@Brian Rasmussen: not while I'm sleeping ;-)

2010-03-03 11:18:01

@fred-hh: no of course, but I read Kerido's reply as you can only abort a thread from another thread, which isn't true. It does, however, say "the thread", so I got it wrong.

Brian Rasmussen 2010-03-03 11:41:55

@Brian Rasmussen: "You can abort the thread from another thread only" -- this is really wrong. It's just how I always use it.

Kerido 2010-03-03 12:02:54

Answer 2

+2 A:

Code is worth a thousand words:

public static void Main(string[] args)
{
    var sleepy = new Thread(() => Thread.Sleep(20000));

    sleepy.Start();
    Thread.Sleep(100);
    sleepy.Abort();
    sleepy.Join();
}

The program ends before the sleep time is exhausted.

João Angelo 2010-03-03 11:03:54

I'll try that, since experience is worth a thousand Lords ;-) if it succeeds as advertised, I'll accept your answer.

2010-03-03 11:06:11

But what will happen if `Sleep(TimeSpan.FromDays(40))`? Does it stop before program ends or not this is question about

zabulus 2010-03-03 11:08:44

It indeed works as advertised.

2010-03-03 11:17:10

@zabulus, read the remarks of the question. `TimeSpan.FromDays(40)` just illustrates that the thread will be sleeping. Oh, and by the way calling `Thread.Sleep` with `TimeSpan.FromDays(40)` will cause an `ArgumentOutOfRangeException`.

João Angelo 2010-03-03 11:17:32

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Can a ThreadAbortException be raised during Thread.Sleep ?

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