[c++-pthreads] thread-safety definition

[Alexander Terekhov]

Ted Baker wrote:
> 
> > Heck, let's mandate to have async-cancel-safe strlen()-and-alike
> > stuff "in-addition-to OR instead-of" async-cancel-unsafe stuff
> > and simply use C++ function overloading to pick the right stuff
> > (async_cancel_safe inside async_cancel{}), okay?
> 
> A joke?  (With nested calls and separate compilation you obviously
> cannot tell what call is "inside" an async_cancel{}.)

It's pretty much like "const correctness" for member functions 
but with "execution context" instead of "type of this" (and with 
"async_cancel_safe"/"async_cancel {}" instead of "const"). 

regards,
alexander.