Ion Gaztañaga wrote:
Peter, very interesting, thanks for the hint, I'll add a ticket to avoid missing it. There are quite a few gems hidden under smart_ptr: very interesting the implementation of spinlock_xxx.hpp primitives, I'm not a threading expert but I guess these are more efficient that current full barrier atomic compare-exchange based interprocess primitives.
Any chance to move those into boost/detail directory? These seem useful outside smart_ptr (just like lightweight_mutex.hpp, interlocked.hpp, etc.)
These were in boost/detail at first, but I moved them into smart_ptr/detail so that it's clear to which library they belong; given that we'll be moving to separate repositories, this was obviously a good idea. :-) For the spinlocks, the way forward is to use std::atomic_flag, and much of the other stuff is also obsoleted by the C++11 atomics. Unfortunately, I was unable to get yield(k) into the standard.