| 摘要 |
PROBLEM TO BE SOLVED: To speed up a lock/unlock process and lighten the load on software and hardware by accessing a memory of another processor by operating the lock variable of the processor, and performing lock/unlock operation only by a transmission and reception device. SOLUTION: When a processor 1a accesses a processor 1b as a destination, a transmission device 3a of a transfer device 2a asks the destination processor 1b to send a packet to the processor 1a and a return request packet having the header of a data transfer packet itself in the data main body is sent. The data transfer packet has a header for locking or unlocking, and the return request packet is used to perform the lock/unlock process. The return request packet containing the header and data main body needed for processing is received by the destination processor 1b through a network 7 and processed. |
