Subj : Re: Memory Barriers, Compiler Optimizations, etc.
To   : comp.programming.threads
From : Alexander Terekhov
Date : Mon Feb 07 2005 10:05 pm


SenderX wrote:
[...]
> static CMyData my_data;
> static volatile LONG flag = 0;

atomic<bool> flag(false);

> 
> my_data.setup();
> InterlockedCompareExchange( &flag, 1, 0 );

flag.store(true, msync::rel);

> 
> AnotherConcurrentThread
> ------------------
> 
> while ( ! InterlockedCompareExchange( &flag, 0, 0 ) ) { Sleep( 0 ); _asm

while (!flag.load(msync::acq)) ...

regards,
alexander.

.