On Fri, Mar 23, 2001 at 03:52:54PM -0800, Nigel Gamble wrote:
> For the producer/consumer case, you want to initialize the semaphore to
> 0, not 1 which DECLARE_MUTEX(sem) does. So I would use
>
> __DECLARE_SEMAPHORE_GENERIC(sem, 0)
You're right that the DECLARE_MUTEX does not (entirely) do the job,
but I set manually the value of sem->count:
> > atomic_set(&sem->count, -10);
> Then consumer could be:
> /* Wait for 10 items to be produced */
> for (i = 0; i < 10; i++)
> down(&sem);
IMHO, this will not work, because the producer could be issuing
more than one 'up(&sem)' at the time...
Stelian.
--
Stelian Pop <[EMAIL PROTECTED]>
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