Thanks Bob.
I have changed my exec to use BLSGSCMD. I have good news and bad news.
The good news is that for LIST displays, when no scrolling is involved
because I specify a short length, like 256, BLSGSCMD works perfectly for my
needs.
The bad news is that for long displays, like LENGTH(4096), *AND* I do not
scroll to the bottom, the SIGNAL ON HALT trap is still hitting and it blows
my exec out. If I purposely scroll to the bottom, all is well and the
signal is not occurring.
What I have working now is good enough for my needs at the moment. It would
be nice to know how to overcome this though. I could, of course, create
another ISPF panel and format the raw storage myself, but that’s a pain.
Another question. I feel I have sort of hacked my way through this. IPCS
Customization states the PARM to BLSGSCMD is a command. Therefore, I am
dynamically writing a short rexx exec within my exec, writing to a member of
a PDS and then calling it from BLSGSCMD, like this:
.
.
.
modaddr = some_variable_determined_above ;
pgm.1 = "/* rexx */" ;
pgm.2 = "Address IPCS ""LIST" modaddr". LENGTH(256)""" ;
pgm.0 = 2 ;
Address TSO "ALLOC F(TEMP) DA(CLIST.CLIST(TEMP)) SHR REUSE" ;
Address MVS "EXECIO * DISKW TEMP (FINIS STEM pgm." ;
Address ISPEXEC "SELECT PGM(BLSGSCMD) PARM('%TEMP') NEWAPPL(BLSG) PASSLIB" ;
.
.
.
(the above typed from memory - not copy/pasted from my working exec)
So it's clunky. Plus, if running the first time, if member TEMP does not
exist in CLIST.CLIST, it blows up, so for production use, I would have to
add logic to determine if it already exists, if not, blah blah blah.
I tried to do this, but it didn't work:
text = "IPCS LIST" modaddr". LENGTH(256)" ;
Address ISPEXEC "SELECT PGM(BLSGSCMD) PARM('"text"') NEWAPPL(BLSG) PASSLIB"
or some flavor thereof, and that did not work. Thus the clunk.
Any suggestions for a better approach?
Todd
> -----Original Message-----
> >
> >
> If you want each LIST subcommand treated as a distinct ISPF transaction,
> use dialog program BLSGSCMD. The API is documented in /z/OS MVS IPCS
> Customization./ Short output from LIST will be handled on the way back
> from the subcommand to your exec, allowing it to be reviewed until no
> longer wanted. Long output can be partially viewed if that gives the
> user enough information without bothering to generate the entire report
> requested from LIST. My recollection is that your "signal on halt" exit
> should not be entered.
>
> --
> Bob Wright
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