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Re: Patch ping

Peter Dimov wrote:

> Can't this be solved using atomic_compare_exchange (I'm not sure of its 
> exact spelling, or whether it's currently part of libstdc++)?

I was just thinking the same thing.  Currently the work you described
is split across two functions, but would this work, given a pointer to
the new object, "new" ...

   old = caches[i];
   new->add_reference();
   while ( !compare_and_swap(caches[i], old, new) )
   {
       old = caches[i];
   }
   if (old)
     old->remove_reference();

jon
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