Re: [boost] [Boost.utility]

Subject: Re: [boost] [Boost.utility]
From: Andrew Chinkoff (achinkoff_at_[hidden])
Date: 2010-01-27 14:28:41

> When call_once returns it is guaranteed that foo has
> run to completion exactly once.  If two thread run it
> in parallel one of them will block while the other runs
> foo. 

Ok, I ask again specifically:

Does boost::once ensure that called function will be performed "atomically"
rather than "mutually excluded"? 
I mean "atomic" foo performance but not "mutex'ed".

Best,
Andrew

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