Re: [boost] [Boost.Thread]

Subject: Re: [boost] [Boost.Thread]
From: edouard_at_[hidden]
Date: 2010-01-28 08:17:10

On Thu, 28 Jan 2010 16:10:58 +0300, Andrew Chinkoff <achinkoff_at_[hidden]>
wrote:
 

>                 if(IsNotEven(global_int)) // (1)

global_int is left unmodified

> #elif defined USE_SPINLOCKS
>                 if(__sync_fetch_and_and(&global_int, 1)) // (2)

global_int is modified

_sync_fetch_and_and is 

tmp = *ptr; 
*ptr = tmp & value; 
return tmp;

Hope this helps.

-- 
Edouard