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Re: [c++-pthreads] Does the cancelation exception have a name?

  • To: "Jason Merrill" <jason@xxxxxxxxxx>
  • Subject: Re: [c++-pthreads] Does the cancelation exception have a name?
  • From: "Peter Dimov" <pdimov@xxxxxxxxx>
  • Date: Mon, 6 Nov 2006 18:54:28 +0200
Jason Merrill wrote:

Peter Dimov wrote:

Daniel Jacobowitz wrote:


The latest state I know of for this question is here:
 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28145


Follow-up question:

Is it possible (and desirable) to give different names to the two
"exceptions" resulting from pthread_cancel and pthread_exit?


It's not trivial, the information my implementation checks only
identifies forced unwind, but I don't see any reason it shouldn't be
possible by putting the extra information somewhere.  It certainly
seems desirable.
From looking at the code, it seems possible for pthread_exit and pthread_cancel to put something into _Unwind_Exception::exception_class (or private_1/private_2) that could allow an extension of your patch to match them as if by name. But I'm definitely not an expert on this, so I thought it'd be better to ask.