Re: [MI400] What is wrong with his list?

["Leif Svalgaard" <leif@xxxxxxxx>]

From: Blair Wyman <blairw@us.ibm.com>
"Leif Svalgaard" <leif@leif.org>
> wrote:
> > Blair, here you get a second chance.
> > I'm stumped on what's wrong with his option list.
> > He is trying to read a keyed file in Mi using the SEPT calls:
> >
>
> AFAIK, this option list format was never publicly documented, and it's
> apparently yet another of those many things that have been
> garbage-collected from my storage-constrained brain...
>
> In fact, the old wetware isn't what it used to be

Андрей  figured it out on his own:

> Hi Leif.
> Structure which is sended by yours occurs not valid.
> Was:
> The control list for keyed access is:
> X'01' + bin(2)length + "format name"  +
> X'08' + bin(2)length + bin(4)number_of_keyed_fields  +
> X'07' + bin(2)length + key_fields  + X'FF'
>
> I corrected. It's working.
>
> True structure:
> X'01' + bin(2)length + "format name"  +
> ---- offset ----- pos(19)
> X'08' + bin(2)length + bin(4)number_of_keyed_fields  +
> X'07' + bin(2)length + key_fields  + X'FF'
>
was
> DCL DD  LIST-KEYS CHAR(28);
>  DCL DD  ENTRY-ID1    CHAR(1) DEF(LIST-KEYS)  POS(1)  INIT(X'01');
>  DCL DD  ENTRY-L1     BIN(2)  DEF(LIST-KEYS)  POS(2)  INIT(10);
>  DCL DD  RCDFMT       CHAR(10) DEF(LIST-KEYS) POS(4)  INIT ('EMP_REC   ');

>  DCL DD  ENTRY-ID2    CHAR(1) DEF(LIST-KEYS)  POS(14)  INIT(X'08');
>  DCL DD  ENTRY-L2     BIN(2)  DEF(LIST-KEYS)  POS(15)  INIT(4);
>  DCL DD  NKEYS        BIN(4)  DEF(LIST-KEYS)  POS(17)  INIT(1);

>  DCL DD  ENTRY-ID3    CHAR(1) DEF(LIST-KEYS)  POS(21)  INIT(X'07');
>  DCL DD  ENTRY-L3     BIN(2)  DEF(LIST-KEYS)  POS(22)  INIT(4);
>  DCL DD  MYKEY        CHAR(4) DEF(LIST-KEYS)  POS(24)  INIT("0002");
>  DCL DD  END-LIST     CHAR(1) DEF(LIST-KEYS)  POS(28) INIT(X'FF');


should be:
> DCL DD  LIST-KEYS CHAR(33);
>  DCL DD  ENTRY-ID1    CHAR(1) DEF(LIST-KEYS)  POS(1)  INIT(X'01');
>  DCL DD  ENTRY-L1     BIN(2)  DEF(LIST-KEYS)  POS(2)  INIT(10);
>  DCL DD  RCDFMT       CHAR(10) DEF(LIST-KEYS) POS(4)  INIT('EMP_REC   ');
>
>  DCL DD  ENTRY-ID2    CHAR(1) DEF(LIST-KEYS)  POS(19)  INIT(X'08');
>  DCL DD  ENTRY-L2     BIN(2)  DEF(LIST-KEYS)  POS(20)  INIT(4);
>  DCL DD  NKEYS        BIN(4)  DEF(LIST-KEYS)  POS(22)  INIT(1);
>
>  DCL DD  ENTRY-ID3    CHAR(1) DEF(LIST-KEYS)  POS(26)  INIT(X'07');
>  DCL DD  ENTRY-L3     BIN(2)  DEF(LIST-KEYS)  POS(27)  INIT(4);
>  DCL DD  MYKEY        CHAR(4) DEF(LIST-KEYS)  POS(29)  INIT("0002");
>
>  DCL DD  END-LIST     CHAR(1) DEF(LIST-KEYS)  POS(33) INIT(X'FF');


it is still a mystery what the extra 5 bytes just before POS(19) do.