| 摘要 |
PURPOSE:To surely generate the deadlock by providing a superordinate task, two subordinate tasks, a subordinate task actuation instructing means, a subordinate task control means, a data base open means, a deadlock preparing means, and an end processing means. CONSTITUTION:The device is provided with a superordinate task, two subordinate tasks 3a, 3b, a subordinate task actuation instructing means 2-1, a subordinate task control means 2-2, and a data base open means 3-1. Also, this device is provided with a deadlock preparing means 3-2 for executing the exclusive control each other to a data base, allowing one subordinate task 3a or 3b to generate a state that a deadlock occurs, detecting the generation of a deadlock state of the other subordinate task 3b or 3a and informing its detected information to a program, and an end processing means 3-3. In such a way, the deadlock is generated surely, and also, without necessitating an operator's intervention at all, and a deadlock operation confirmation test is executed every efficiently. |
