using CEE3DLY to delay

jerryte · Posted: Thu Apr 14, 2011 5:10 am

Has anyone used the LE routine CEE3DLY to invoke a delay in a program? Any problems or bad experiences with it?

Bill O'Boyle · Posted: Thu Apr 14, 2011 6:02 am

Introduced with z/OS 1.9, CEE3DLY uses seconds for the DELAY interval, whereas, CEE3DLYM uses milliseconds for the DELAY interval.

Not aware of any issues, but the more finite the interval (milliseconds), the more you're in control.

1 second = 1000 milliseconds.

Bill

jerryte · Posted: Thu Apr 14, 2011 6:46 pm

Thanks. I checked the reference manual. The other routine is called CEEDLYM. Not sure why IBM decided to drop the "3" out of the name.

dbzTHEdinosauer · Posted: Thu Apr 14, 2011 6:56 pm

keep the program name to 7 chars.

vadim vashchenko · New User Joined: 21 Mar 2011 Posts: 13 Location: usa

Works with no problems in batch. I know I can call it from CICS, but EXEC CICS DELAY is more convenient...

Bill O'Boyle · Posted: Thu Apr 14, 2011 8:14 pm

I would NOT encourage usage of a DELAY API in CICS, although there are times when there is no other choice.

In the CICS DELAY, the minimum interval is one second, which is an eternity in CICS.

Having said this, I have never tried to use CEEDLYM in CICS, which has a millisecond interval. But, in a CICS DELAY API, another asynchronous task can CANCEL this DELAY early, via the DELAYED Tasks REQID and TRANSID, which needs to be known by the asynchronous task. That would be ideal to prematurely cancel the DELAY. You want throughput to be as quick and uninterrupted in CICS.

Just my 2 cents....

Bill

surya anem · New User Joined: 20 Dec 2007 Posts: 54 Location: Hyderabad

Hi,

I am using this service CEE3DLY for issuing a wait in my cobol program. It seems to be working fine as expected.

But i have found the following definition in the IBM workshop "CEE3DLY provides a service for Language Environment-conforming applications that suspends the processing of the active enclave for a specified number of seconds."

Can you please let me know what an active enclave is?

If i am using a cobol program and JCL, is it just that the job waits for the specified time.

Thanks,
Surya

Anuj Dhawan · Posted: Tue Jun 21, 2011 6:47 pm

dbzTHEdinosauer · Posted: Tue Jun 21, 2011 6:58 pm

possibly an IBM manual's definition of enclave would be more helpful.

here is another reference to enclave in the same manual.

and last but not lease, a search list for enclave in the Programming Guide.

Bill O'Boyle · Posted: Tue Jun 21, 2011 7:58 pm

In issuing a DELAY in CICS (using the CICS-API), you can specify a well-known "REQID". With that, another concurrent task can CANCEL this DELAY early, using the REQID instead of waiting until the DELAY interval expires.

Of course, the issuing task can't cancel itself....

Bill

Robert Sample · Posted: Tue Jun 21, 2011 9:23 pm

The Workload Manager manual defines it as