[Mono-dev] ThreadPool unhandled exceptions

[Adar Wesley]

Just verified that on MS .NET this has the following output:
About to throw an exception
UnhandledException !
Application Complete
Press any key to continue . . .

So it seems to me this is a bug in Mono implementation.

---
Adar Wesley


On Wed, Dec 23, 2009 at 9:27 PM, Thad Thompson <TThompson at nucsafe.com>wrote:

> Hi,
> I know this has been raised a few times in the past (bugs 332206,
> 334265, and 435127) but I've looked high and low for a workaround and
> just can't seem to find it. Is there any way to catch, trap, log, crash,
> or in any way be notified of an unhandled exception from a ThreadPool
> thread? My apologies in advance if I've overlooked something basic.
>
> Thanks,
> -Thad
>
>
> Example:
> ---------------------------------------------------------------------
> namespace MonoExceptions
> {
>    class MainClass
>    {
>        public static void Main (string[] args)
>        {
>            try
>            {
>                AppDomain.CurrentDomain.UnhandledException += (a,b) =>
>                { Console.WriteLine("UnhandledException !"); };
>
>                System.Threading.ThreadPool.QueueUserWorkItem ( (a) =>
>                {
>                    Console.WriteLine("About to throw an exception");
>                    throw new Exception("I'd really like to catch
> this");
>                });
>
>                System.Threading.Thread.Sleep(5000);
>                Console.WriteLine("Application Complete");
>            }
>            catch(Exception ex)
>            {
>                Console.WriteLine("Caught exception in Main: " +
> ex.Message);
>            }
>        }
>    }
> }
> ---------------------------------------------------------------------
> Output:
> About to throw an exception
> Application Complete
>
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