Events lost with dispatcher

[Vishwanath Venkatesan]

Hi,

I having troubles receiving events with the dispatcher in ubuntu-9.04.

I am just trying to use the rule
-a entry, always -S execve -S exit_group
I receive all the events in the audit.log, but not in the dispatcher.
I am using the dispatcher code in the auditd website.

I also using two threads where in one thread collects all the data and  
the other thread does the parsing.
So there is no blocking and the queue is an unbounded concurrent queue.
I don't think there can't anything else done at the receiving end.

If anyone has faced something similar or have suggestions, please let  
me know

Thanks
Vish