How to resolve the algorithm Determine if only one instance is running step by step in the BASIC programming language

Published on 12 May 2024 09:40 PM
#Basic

How to resolve the algorithm Determine if only one instance is running step by step in the BASIC programming language

Table of Contents

Problem Statement

This task is to determine if there is only one instance of an application running. If the program discovers that an instance of it is already running, then it should display a message indicating that it is already running and exit.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Determine if only one instance is running step by step in the BASIC programming language

Source code in the basic programming language

PRAGMA INCLUDE <sys/file.h>
OPTION DEVICE O_NONBLOCK

OPEN ME$ FOR DEVICE AS me

IF flock(me, LOCK_EX | LOCK_NB) <> 0 THEN
    PRINT "I am already running, exiting..."
    END
ENDIF

PRINT "Running this program, doing things..."
SLEEP 5000

CLOSE DEVICE me

You may also check:How to resolve the algorithm Align columns step by step in the SparForte programming language
You may also check:How to resolve the algorithm Keyboard macros step by step in the Python programming language
You may also check:How to resolve the algorithm Update a configuration file step by step in the Wren programming language
You may also check:How to resolve the algorithm Logistic curve fitting in epidemiology step by step in the Java programming language
You may also check:How to resolve the algorithm Huffman coding step by step in the C programming language