IBM SC33-1683-02 - Manual (Page 606)

Dynamic transaction routing sample programs
The CICS-supplied sample dynamic routing program is named DFHDYP. The
corresponding copy book that defines the communications area is DFHDYPDS.
There are assembler-language, COBOL, PL/I, and C source-level samples and
copy books. The supplied programs and copy books, and the CICSTS13.CICS
libraries in which they can be found, are summarized in Table 28.
Table 28. Dynamic transaction routing programs and copy books
Language Member name Library
Programs:
Assembler
COBOL
PL/I
C/370 DFHDYP
DFHDYP
DFHDYP
DFHDYP SDFHSAMP
SDFHCOB
SDFHPL1
SDFHC370
Copy books:
Assembler
COBOL
PL/I
C/370 DFHDYPDS
DFHDYPDS
DFHDYPDS
DFHDYPDS SDFHMAC
SDFHCOB
SDFHPL1
SDFHC370
You can write your own dynamic routing program in VS COBOL II, PL/I, C, or
assembler language, and you can change the name of the program.
When invoked with DYRFUNC set to ‘0’, the sample programs accept the sysid and
remote transaction name that are passed in fields DYRSYSID and DYRTRAN of the
communications area, and set DYRRETC to ‘0’ before returning to CICS. When
invoked with DYRFUNC set to ‘2’ or ‘3’, they set a return code of ‘0’. When invoked
with DYRFUNC set to ‘1’ or ‘4’, they set a return code of ‘8’.
If you want to route transactions or DPL requests dynamically, you must customize
DFHDYP, replace it completely with your own routing program, or use
CICSPlex SM.
sample transaction routing programs
574 CICS TS for OS/390: CICS Customization Guide
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