Re: catch (...)

[Ross Johnson <rpj@ise.canberra.edu.au>]

Just to add to Scott's response, there is also a version of the
dll that uses setjmp/longjmp rather than exceptions (thanks
to Thomas Pfaff). It's named pthreadVC.dll, but it doesn't do
any cleanup apart from that done by pthreads cleanup handlers.

Ross

Scott McCaskill wrote:
> 
> pthreads-win32 uses exceptions to implement thread cancellation.  This means
> that, in the threads that you create, if your code (or any code you call)
> uses catch(...), it may inadvertantly circumvent this thread cancellation
> mechanism.  This is why there is a warning telling you to use PtW32CatchAll
> in place of catch(...).
> 
> If you look at the bottom of pthread.h, you will see that PtW32CatchAll is
> defined as follows:
> 
> #define PtW32CatchAll \
>         catch( ptw32_exception & ) { throw; } \
>         catch( ... )
> 
> ----- Original Message -----
> From: "Ye Liu" <yliu@tibco.com>
> To: <pthreads-win32@sourceware.cygnus.com>
> Sent: Sunday, August 05, 2001 11:28 PM
> Subject: catch (...)
> 
> > Greets,
> >
> > I have a question on using pthread-win32 in C++:
> >
> > When I compiling my code with try and catch, I got
> >
> > "When compiling applications with MSVC++ and C++ exception handling:
> >   Replace any 'catch( ... )' with 'PtW32CatchAll' in POSIX threads
> >   if you want POSIX thread cancelation and pthread_exit to work."
> >
> > in compiling.
> >
> > May I know what PtW32CatchAll is ? A catch comply certain standard from
> > Microsoft? I cannot find any information in MSDN. Can someone give me some
> > details for it?
> >
> > Regards,
> >
> > --ye
> >
> >