A method of insuring continuous processing of messages from a Work FIFO in a message passing interface between a requesting module and a receiving module. Each module has access to two queues in the message passing interface, and each queue has a Work FIFO for containing message frames to be processed...http://www.google.com/patents/US6477584?utm_source=gb-gplus-sharePatent US6477584 - Message FIFO empty early warning method