We use Name/Token all the time, by allocating a block of storage ( depends
on your needs ), it's fairly easy to extract the stored data.
Scott Ford
Senior Systems Engineer | Forging Enterprise Identity | IdentityForge.com
(Main) 678.266.3399 x304 | (Cell) 609.346.0399 | (Fax) 678.266.3399
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-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of Paul Gilmartin
Sent: Monday, September 22, 2008 6:00 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: Calling Assembler module from REXX
On Mon, 22 Sep 2008 16:38:38 -0500, Dave Day wrote:
>Suggestions:
>
>1)make the assembler routine re-entrant. Successive LOADS will up the use
>count, but not actually bring in a new module.
>
>2)pass the called routine a parm that says this is a successive call, not
>the 1st.
>
>3)if you can't do #2 above, take a look at NAME/TOKEN services.
>
>4)if you can't do #3 above, create another load module that is not
>re-entrant. Just a csect that is all 0's. Have the 1st routine search the
>CDE chain for the non re-entrant one. Set indicators in the non re-entrant
>dummy 0's load module that tells the other one what the status of things
>are.
>
All good ideas. For a variant of #2 with some influence from #4,
let the Rexx routine supply the working storage for the called
routine, initialized before the first call. See the use of
"ChainingVector" in SYS1.SAMPLIB(CSFTEST) for an example of the
Rexx side of this technique.
But none of these deal with the deficiency that Rexx LINKPGM/ATTCHPGM
will LOAD and DELETE even a REFReshable load module for each
invocation. This causes unwelcome overhead for large numbers
of invocations. So, perhaps:
5) Put the routine in LPA if permitted.
Would there perhaps be Rexx interfaces to LOAD and DELETE
on CBTTAPE (or similar) so the routine could be LOADed and
DELETed only once?
Would TSO-REXX supply better advice?
-- gil
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