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The online monitoring system will interface the DAQ system to the
monitoring the monitoring software through a shared memory interface. The two sides
communicate sides communicate with each other via POSIX message queues. The DAQ system
will system will fill the shared memory buffers with events which are also known
as known as transitions. The DAQ system notifies the monitoring software that
each that each buffer is ready by placing a message in the monitor output queue
containing queue containing the index of the newly available event buffer.

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