Xinwei Hu wrote:
> 2007/8/9, Junko IKEDA <[EMAIL PROTECTED]>:
>> Hi,
>>
>> sorry, my previous answer was off the mark...
>> When 2 nodes reach there at the same time,
>> node A notices that the other node want to lock too, so give up lock itself.
>
> I only see that you sleep a period of collision_timeout. This will not prevent
> race condition from happening.
> Am i missing anything else ?
>
>> node B is ready to lock.
Sleeps won't prevent race conditions, unless you sleep in order to retry
from the beginning or something similar. I guess I need to actually
read your code ;-)
There are some lockless synchronization algorithms which have been
published. I would suggest comparing your code to those algorithms.
My colleague Paul McKenney would be a good person to ask about these, or
tell us where to go to learn more, so I've CCed him.
Paul: I'll subscribe you to the list. You can mark your subscription
as "do not send me mail" at any time. You'll get the info for this in
the subscription email.
--
Alan Robertson <[EMAIL PROTECTED]>
"Openness is the foundation and preservative of friendship... Let me
claim from you at all times your undisguised opinions." - William
Wilberforce
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