From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2008-04-09 19:10:11
Peter Dimov wrote:
> What happens when you change...
>
>> bool try_lock()
>> {
>> int r;
>>
>> __asm__ __volatile__(
>> "swp %0, %1, [%2]":
>> "=r"( r ): // outputs
>
> ... this line to
>
> "=&r"( r ): // outputs
Bingo!
====
coda$ ./spinlock_test
// sp.lock();
// sp2.lock();
// sp.unlock();
// sp2.unlock();
// scoped_lock...
// ...scoped_lock
coda$
====
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