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Dennis1SOIL
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Joined: 30 Jun 2009
Posts: 15
Location: Missouri, USA
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(I'm posting this question in this "Mainframe COBOL" forum - but I guess it could also go in the "DFSORT/Icetool" forum.)
I want to use the "INPUT PROCEDURE" capability of the internal SORT capability. The complication (at least I think this may be a "complication") - is that the RELEASE statements will be executed in <MANY SUCCESSIVE INVOCATIONS> of the sub-program which contains the SORT statement with the INPUT PROCEDURE clause.
For instance :
A Driver program reads an input file and sometimes calls the Sub-Program in question. The Sub-Program may (or may not) RELEASE another record to the SORT when it is called, and it may be called as much as multiple million times.
I look for answers to the kinds of questions I've been asking today in IBM publications ... but I guess I'm losing my touch about how to pick correct search words...
(For the good folks helping me over in the DFSORT forum today - yes, this is in regard to the same program I have been talking about over there)
-Dennis |
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dick scherrer
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Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
Suggest a redefiniton of the process is in order. . .
When the sort is invoked, it "takes over" . . . If the code is "ungracefully exited" (i.e. before the sort completes), it will abend. Unless i missed some memo 
The driver module should probably write to a qsam file and when the driver "input" is all processed, a subsequent process would do whatever with the extracted data. |
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Dennis1SOIL
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Location: Missouri, USA
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Thanks again Dick,
Sadly, that's pretty much what I was thinking might be the case.
I was hoping we'd found a way to skip the overhead of having to re-read the extracted data.
Perhaps I could move the SORT into the Driver program (along with any selection filtering logic currently in the Sub-program) -- but then -- I would be asking whether it's OK to pass the RETURNed record to a Sub-program from OUTPUT PROCEDURE code!
-Dennis |
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CICS Guy
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Joined: 18 Jul 2007
Posts: 2146
Location: At my coffee table
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| Dennis1SOIL wrote: |
| A Driver program reads an input file and sometimes calls the Sub-Program in question. The Sub-Program may (or may not) RELEASE another record to the SORT when it is called, and it may be called as much as multiple million times. |
The 'off the cuff' answer I think of is a status return from the sub to the caller with either an "do not release and I'm done", "release and I'm done" or "release and return to me". |
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