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Hi Bob,
The problem here is that I'm not sure what I mean. I have not done anywork
with the datq or usrq before. The program is calling another progran that is
used to start the queue. I don't want to start the queue if it is already
there and active. How do I know if the queue is there and active?
Do you mean you have a ("never-ending") program in a batch job that sits
and waits for entries on the queue? And you only want to start THAT JOB
if it's not already running?
If so, I suggest that you use object locking. Create a data area. Have
the background job do an ALCOBJ on that data area. As long as the job
is running, it will hold the lock.
Then the program that needs to check if it's running will first try to
ALCOBJ on that data area with a timeout of 1 second. If the allocation
fails, you know the batch job is running, and you don't try to start
another one...
Note that this question really has nothing to do with data queues or
user queues. It's just a basic "how to see if a background job is
already running" type of question.
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