[SPAM] - [c++-pthreads] Is the pthread_cancel cancellation exception type known? - Email found in subject

[Ted Baker]

I seem to recall seeing this problem discussed at length on this
list, without development of any consensus on the best way to
solve it.

From my own experience with the Ada multitasking standard,
I lean strongly toward the approach you suggest, i.e., treating
thread cancellation as a special case, that is always re-thrown.

--Ted Baker

On Tue, Jan 24, 2006 at 09:36:28AM -0800, Paul Bouche wrote:
> 
> 
> I have recently been struggling with the conflicts outlined
> in Bug #160638, regarding pthread_cancel and C++ Exception
> Handling.  
> 
> I have a thread library that has been affected by this problem.
> The easiest path available to me is to rely upon the previous
> behavior by using: export LD_ASSUME_KERNEL=2.4.19  until the
> issue is more formally resolved.   Before doing that, I would
> like to ask a question that may allow me an alternate solution.
> 
> My issue centers around having a catch(...) handler which does
> not rethrow.   I get the now expected: FATAL: exception not rethrown
>                                        Aborted
> 
> Based on this error, it seems one must rethrow the cancellation
> exception 
> to allow it to complete.  Yet, I certainly do not want to rethrow all
> other
> exceptions as well.  At least for default behavior, this results in an
> uncaught exception that Aborts.
> 
> 
> Is the type of this cancellation exception known such that I can employ
> a specific handler for it and allow it alone to be rethrown?
> 
> This allows my catch(...) handler to remain in place, yet allows the
> cancellation exception to complete as required.
> 
> Thanks,
> Paul Bouche
>  
>