[c++-pthreads] Re: pthread_cancel and EH: let's try this again

Jakub Jelinek jakub at redhat.com
Fri Jul 15 07:05:12 UTC 2005


On Thu, Jul 14, 2005 at 05:24:57PM -0700, Mark Mitchell wrote:
> Why not just have two modes, controlled by an environment variable, 
> link-time option, or run-time variable?  In the first mode, cancellation 
> would not be an exception and nothing but pthread_cleanup_push'd code is 
> run, and stack unwinding of all kinds is totally ignored.  In the second 
> mode, cancellation would be an exception; nothing more, nothing less.

There is big amount of code in Linux after a few past years that already
has pthread_cleanup_{push,pop} internally implemented as a C++ object
with a destructor.  So this is really not a workable option.

	Jakub



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