RESOURCE EXCLUSION CHECKING SYSTEM AND RESOURCE EXCLUSION CHECKING METHOD

摘要

PURPOSE: To shorten the confirmation time of an exclusion state by deciding whether resource is secured in a self-task referring to a table preliminarily held by making a pair of a resource name and a task name in advance to the update of resource contents. ;CONSTITUTION: This system is composed of tasks α and β having application programs 10 and specific working areas 40, a memory area 100 and a shared memory 200. The shared memory 200 has a resource name and a task name and has a resource control table 220 controlling the using state of resources A, B, C and D respectively. Each resources A, B, C and D arranged on the memory area 100 is sorted by defining the resource name as a key before the tasks α and β are started. When the tasks use resources, a self task name is made a pair with pertinent resources and they are recorded in the resource control table 220, and they are deleted when the uses of them are terminated. Thus, the propriety of the update of the resources by the application program 10 of the tasks in an on-line processing system becomes possible to be decided in short time.;COPYRIGHT: (C)1996,JPO