| 摘要 |
PURPOSE:To avoid reconstitution of a queue, by registering a request cancelling process in a cancellation table depending on types and registrating cancellation request information of a specific type in the queue, in a system processing the information registrated in the queue. CONSTITUTION:Transmission data D1-D5 in the unit of communication line types A, B, C are registrated in a queue of an information processing system, and when a transmission cancellation request for the transmission data is caused on the communication line B, a request section CR detects it, 1 is added to the number of registrations corresponding to the communication line types B of a cancellation table CT, and cancellation request information D6 including the line type B for cancellation request and cancellation request instruction CAN is formed and it is registered in a D6 of queue area. A transmission data processing section makes data pickup processing from the head address of the queue, and when the data D2 is picked up in a data buffer DB, a table C is referenced with the line type B and cancellation request is detected, and the stopping of transmission processing can be instructed. The registration in the table CT can be canceled with the processing of the region D6. |
