| 摘要 |
PURPOSE:To attain the fine control for the priority level of each processing request by replacing an indicating means with extraction of the processing request and extracting the next processing request according to the checking order indicated newly. CONSTITUTION:A request accepting part 13 accepts the processing requests given from one or plural request sources to analyze their contents and allocates these requests to either one of plural branch queues 18 according to the type of the requested processing. A processing selection part 15 searches those queues 18 and extracts a request if queued in each queue 18 through an extracting part 14. Furthermore the part 15 includes a table 17 which defines the information on the searching order of queues 18 and an indicating means 16 for plural types of searching order information defined by the table 17. A queue checking order deciding part 19 has a function to select either one of types of the order information defined by the table 17.
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