Writing C Programs; Building The Ddl Dictionary - HP NonStop Pathway/iTS Programming Manual

SPI Programming Considerations
2. Call SSNULL to initialize the fields in ZPWY-MAP-DEF-TELL with null
values.
3. Assign "HELLO" to the ZAREA field in ZPWY-MAP-DEF-TELL and a value
of 5 (the number of characters in HELLO) to the ZLENGTH field. Call
SSPUT.
4. Send the buffer and ZPWY-VAL-BUFLEN to PATHMON, using a
mechanism appropriate to the language you are using.
2. Queue the tell message for the TERM objects:
1. Call SSGET with ZPWY-MAP-TELLNUM. The tell number is returned in
ZNUMBER; save this value.
2. Call SSINIT, issuing ZPWY-CMD-TELL and ZPWY-OBJ-TERM.
3. Call SSNULL to initialize the fields in ZPWY-MAP-SEL-TERM with null
values.
4. Assign TERM-1 to the ZTERM field in ZPWY-MAP-SEL-TERM. Call
SSPUT.
5. Assign the value from ZNUMBER (the tell number) to the ZNUMBER field
in ZPWY-MAP-PAR-TELL-TERM. Call SSPUT.
6. Send the buffer to PATHMON.
7. Repeat Steps 2a through 2f for term-2.
3. Initiate delivery of the message:
1. Call SSINIT, issuing ZPWY-CMD-START and ZPWY-OBJ-TELL.
2. Call SSNULL to initialize the fields in ZPWY-MAP-SEL-TELL with null
values.
3. Assign the value from ZNUMBER (returned in ZPWY-MAP-TELLNUM in
Step 2a) to the ZNUMBER field in ZPWY-MAP-SEL-TELL. Call SSPUT.
4. Send the buffer to the PATHMON process.

Writing C Programs

This subsection contains special considerations for writing C programs.

Building the DDL Dictionary

The DDL command ?CFIELDALIGN_MATCHED2 allows the DDL compiler to generate
C data structures starting on byte boundaries. Always issue this command before you
start building the DDL dictionary from the ZSPIDDL, ZEMSDDL, and ZPWYDDL files.
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Writing C Programs