METHOD AND DEVICE FOR EXCLUSIVELY CONTROLLING PLURAL JOBS, AND MEDIUM RECORDED WITH EXCLUSIVE CONTROL PROGRAM FOR PLURAL JOBS

摘要

PROBLEM TO BE SOLVED: To provide a method and device for exclusively controlling plural jobs and a medium recording the exclusive control program for plural jobs, which can exclude access to a prescribed interface by the plural jobs on a basic program allowing the occupation of the prescribed interface with respect to a prescribed one job with a simple configuration. ;SOLUTION: Even though there are plural programs to access to an LPT port 10a on a computer in the case when a program capable of occupying this LPT port 10a is limited to be single in the basic program executing the basic operation of the computer, each program comes to be able to grasp the occupying state of the port 10a before outputting data or a command to the port 10a by installing a flag showing the occupying state to a shared memory 170 and it is becomes possible to easily realize the logical exclusion control of the port 10a between plural programs with a such simple configuration.;COPYRIGHT: (C)2000,JPO