| 摘要 |
PROBLEM TO BE SOLVED: To provide a task monitor and a task monitoring method capable of easily analyzing an abnormality cause after abnormality recovery even when an abnormality takes place in a task, and a recording medium on which the method is recorded. SOLUTION: A global area 11 is set in a volatile storing part 4, and when an event is generated, a unique function number defined for every function is recorded in the function number area 17 of the global area 11. A function hierarchy in performing a task is also recorded in the current location area 16 of the global area 11. When function processing is finished, the finished function number is eliminated from the function number area 17 of the global area 11, and when function hierarchies are changed, hierarchy numbers are changed. The contents of the previous location area 13 of the global area 11 are updated every prescribed time, and when time after starting the task surpasses the maximum processing time, a notifying part 8 notifies a monitored task because of the abnormality of function processing. The contents of each area of the global area 11 are copied to a nonvolatile storing part 5 to be stored. After that, the task is reset.
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