topic Re: Simultaneous execution in Operating System - HP-UX

Simultaneous execution

Isaac_4 — Thu, 10 Apr 2003 15:02:58 GMT

Hello:

I want to know if it is possible at grade Operative System that an application is executed gives alone once, and that it doesn't allow another user to execute this application again, while this in execution
Thank you

Isaac Smith

Re: Simultaneous execution

Patrick Wallek — Thu, 10 Apr 2003 15:09:49 GMT

This would have to be coded into the application. The app would have to make use of something like a lock file where the lock file is created the first time the app is executed. If someone else tries to execute the app and the lock file is present then the app will exit out. Once the first occurrence of the app is finished, the lock file can be removed allowing someone else to run the application.

Re: Simultaneous execution

Bruce Bunny — Thu, 10 Apr 2003 15:11:14 GMT

Hi Issac

I liked your example of simultaneous execution

BB

Re: Simultaneous execution

Isaac_4 — Thu, 10 Apr 2003 15:30:33 GMT

For example:

ejecute ioscan command, but I'm dont want that other user use ioscan command at the same time

T. Y.
Isaac