CA Dynam for VSE User Guide

DYNINFO Parameter List
Service Module Processing
On initial entry, DYNACC determines what version parameter list has been
passed by the caller. Depending on the version level of the caller's parameter
list, an appropriate service module is dynamically invoked. The service module
returns directly to the caller. If the caller uses a Version 1 format parameter
list, the service module invoked is CACUDA10. This module was created by
applying maintenance correcting all CA Dynam r5.3 known DYNACC problems
to the standard 5.3 DYNACC object module and linking it as a separately
loadable module.
This ensures that programs which yielded correct results using DYNACC
Version 1 will continue to execute correctly when relinked with DYNACC
Version 2.
DYNACC sets a return code and returns immediately to the caller if it is unable
to locate the System Adapter or the appropriate service module.
DYNINFO Parameter List
The DYNINFO parameter list may be generated in a number of ways.
Invoking DYNACC from COBOL and CA Earl Programs
High level language processors may use a source (copybook) description.
Copybooks are supplied for COBOL and CA Earl. The name of the copybook is
obtained by appending a language identifier character to the name DYNINFO.
For COBOL it is DYNINFOC and for CA Earl it is DYNINFOE. These reside in the
same library as DYNACC.
Invoking DYNACC from Assembler Programs
Assembler programmers should use the DYNINFOA macro. For compatibility
with Version 1, an Assembler copy unit called DYNINFO is also supplied. This
contains a DYNINFOA macro call with parameters set to generate a Version 1
format parameter list. This ensures that programs which were written to use
the earlier version will not be impacted unless you explicitly change the
version level of the parameter list.
The DYNINFOA macro generates a parameter list in the correct format for
either Version 1 or for Version 2.
10–4 User Guide