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8.6

Which is the best to ensure that single instance of a process is running?

Asked by GurcanK in Unix Systems Programming, HP-UX Unix, C Programming Language

Tags: C++, Unix, Semaphores, Locking, Instances.

Dear experts,

We wrote a C++ program to run on HP-UX 11.x. Since we want it to run only as a single instance, we implemented semaphores with sem_open(). However, one of my friends recommended me to create a PID file and check it as a way of controlling process instances.

Could you tell me which one is the best and what are the pros and cons of using these alternatives?

BR
[+][-]10/03/09 01:47 AM, ID: 25484450Accepted Solution

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About this solution

Zones: Unix Systems Programming, HP-UX Unix, C Programming Language
Tags: C++, Unix, Semaphores, Locking, Instances.
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Solution Provided By: evilrix
Participating Experts: 1
Solution Grade: A
 
 
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