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

Published on 12 May 2024 09:40 PM
#Clojure

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

Source code in the clojure programming language

(import (java.net ServerSocket InetAddress))

(def *port* 12345) ; random large port number
(try (new ServerSocket *port* 10 (. InetAddress getLocalHost))
     (catch IOException e (System/exit 0))) ; port taken, so app is already running

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