Comments on: Need to Identify whether a program is using by any user

By: Cursorposition

Cursorposition — Thu, 29 Nov 2012 01:23:05 +0000

Thanks Tom. Got some idea.

By: TomLiotta

TomLiotta — Wed, 28 Nov 2012 09:49:29 +0000

…we don’t want 2 users from same department to use this program same time …

That part needs to be clarified first. How will you determine if two users are in the same department?

It’s easy to lock a program so that only one user can run it at a time. But trying to create a method that only locks some users some of the time takes a little structuring. Identifying users and departments is necessary before deciding on an appropriate method.

For example, I might use a user index. When a user tries to run the program, I would retrieve the user’s department and insert the department name into the user index. When the program ended, I’d remove the index entry for that department name.

If a second user from the same department tried to run the program, the attempt to insert the index entry would fail because the department name had already been added. A user from a different department would succeed because the department name would be different for that user.

A potential flaw would arise if the job failed and the index entry wasn’t removed. Simplest solution would be a function that removed index entries based on a user name. Other solutions might be setting a condition handler or possibly a scope message that removed the entry for a job even if the function failed.

Tom

By: Cursorposition

Cursorposition — Wed, 28 Nov 2012 09:16:40 +0000

We have the source for Program.

By: Cursorposition

Cursorposition — Wed, 28 Nov 2012 09:15:13 +0000

Hi Tom, Thanks for the information. The program is accessed througha Menu Option. Can you share with me the most feasible option to achieve this?

By: TomLiotta

TomLiotta — Wed, 28 Nov 2012 02:10:03 +0000

BTW, yes, it’s possible to determine if a program is in use. But first, how exactly were you thinking that knowledge would be used? And second, it’s a pretty complex and potentially time consuming operation. It couldn’t be considered to be guaranteed accurate at all times. There are better ways to go. — Tom

By: TomLiotta

TomLiotta — Wed, 28 Nov 2012 02:05:31 +0000

How is the program accessed? Usually there will be a menu or some accessible item that users get to in order to run a program. Do you have the source for the program or source for the menu (or what the access object is)? — Tom

By: TomLiotta

TomLiotta — Tue, 27 Nov 2012 08:44:27 +0000

you can list out user using the specific pgm object by using WRKOBJLCK command

No, you can’t. Not unless you also create some way of placing a lock on the *PGM that WRKOBJLCK will report. Running a program doesn’t place a lock by itself on the program.

That’s why more information is needed for the question. It’s relatively easy to create a locking function for particular programs. It’s much more involved to do it for generic “programs”.

Tom

By: TomLiotta

TomLiotta — Tue, 27 Nov 2012 06:28:01 +0000

What does “using by any other user” mean? Can you explain? Do you want to know if some user is running a particular program? Or will you want to know about different programs at different times? — Tom