[boost] Re: Lock unification [move]

From: David Abrahams (dave_at_[hidden])
Date: 2004-07-22 17:46:46

Howard Hinnant <hinnant_at_[hidden]> writes:

> The (proposed) move assignment philosophy is:
>
> l1 = move(l2);
>
> behaves as if:
>
> atomic
> {
>      if (l1.locked())
>          l1.unlock();
>      if (l2.locked())
>      {
>         l2.unlock();
>         l1.lock();
>      }
> }
>
> So in your example l2 would be unlocked, l1 would remain locked, and
> the underlying mutex lock count would be decremented by 1.

weird; the mutex association is not transferred along with
"locked-ness"?

Uh-oh: I think I just invoked the locked-ness monster.
-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com