Re: [MI400] Checking if a program is active

["Bernard Burchell" <bburch@xxxxxxxxxxxxxxx>]

Harry,

I have a shareware tool called 'Programs in Use' that can do this.  One of
its features is the ability to search all jobs to see if a program is in a
call stack (invocation stack).  It runs either as a display program or can
be called in API mode.

Normally you would not get an error from renaming an active program because
their are no locks against it, and because its address in memory does not
change when it is renamed.  So the job running it is not aware of it being
renamed, until it tries to call it a second time, then it will not find it.
But if it is a system program being referenced from the SEPT, the system
does not care about the object name, only its address.  Although I would
avoid renaming system programs.

Bernard Burchell
Precosis Pty Ltd
http://www.precosis.com

----- Original Message -----
From: "Harry Williams" <planesmart@teleteam.net>
To: "Mi400" <mi400@midrange.com>
Sent: Monday, November 11, 2002 12:58 AM
Subject: [MI400] Checking if a program is active


I know someone has a trick to see if a program is active.  I assume I can
list all the active jobs and look, but in the past I remember that we could
do something like rename the program to itself, and we would get an error if
it was in use.  This does not seem to work now.

There is a IBM Journal program which keeps dying, and I wanted to keep it
going until IBM fixes it.

Thanks
Harry