| 摘要 |
PURPOSE:To perform the multiplex processing of a test automatically by referring to a control area at the time of access to an optional inherent source in a system and executing processing corresponding to the referred message. CONSTITUTION:A job A decides whether an inherent source 21 is using its control area 31 or not, and if the control area 31 is not used, writes a message indicating its using in the control area 31 to start the using of the inherent source 21 by the job A. If a job B is to use the inherent source 21 under said state, the job B refers to the contents, written in the control area 31. Since the message indicating the use of the inherent source 21 by the job A is written in the control area 31, the job B waits for the arrival of an inherent source releasing message from the job A. After completing the use of the inherent source 21 by the job A, the job A informs the inherent source releasing message and the job B receives the message and then refers to the control area corresponding to the inherent source 21 to check the unused state. |
