Being a bit of a UNIX partisan, I'd do a fork()/exec() to run the application. You'd fork()/exec() "/bin/sh -c" to run a UNIX REXX script. This UNIX REXX script uses ADDRESS TSO to run a TSO REXX program (yes, it's getting complicated) to do what the JCL usually does. When the TSO REXX finishes, the UNIX REXX script continues, and subsequently finishes. When the UNIX REXX script finishes, the shell finishes and the originating program can be informed via a SIGCHLD signal. Or it can just "hang" itself in a UNIX wait().
If you're really good, you may not need the TSO REXX. I just think it's easier to convert JCL to TSO REXX than UNIX REXX. OK, this is likely going overboard. It would require a major rewrite of the STC's current code. But it does give an example of running another process asynchronously with the originator being informed of completion. Of course, depending on what the STC is doing in the mean time, the creation of the dataset can be eliminated by using a named pipe, or perhaps even an anonymous pipe. Have the asynchronous process write to the named pipe. Have the main STC read from it. The main STC will "wait" in the "read" of the pipe until the subprocess starts writing. And will get an EOF on the pipe when the subprocess does a CLOSE on it. Come to think of it, this will even work with a batch job submitted via the INTRDR, so long as you are running on the same system. If you really need the dataset for later, have the final step of the batch job use IEBGENER to copy the dataset contents to the named pipe. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[email protected]] On Behalf Of Hunkeler Peter (KIUP 4) > Sent: Wednesday, February 01, 2012 1:12 AM > To: [email protected] > Subject: Re: Intrdr > > >There is a STC running , similar in characteristics as CICS, runs all > the time. > >Submits a job via Intrdr, job creates a Qsam file, STC must wait for > job to complete, > >Because STC needs the data and it is single thread... > > Why does it have to be a submitted job? Can't you just link to the > program, or programs one after the other, that create the > file? Knowing > more about this requirement might trigger new ideas. > > -- > Peter Hunkeler > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
