Guardian Application Conversion Guide

Being Opened by and Communicating With a High-PIN Requester

Converting COBOL85 Applications

4–24 096047 Tandem Computers Incorporated

Reading Status-Change System Messages. Your server might also monitor the status of its

requesters by using the following keywords to read status-change system messages

from $RECEIVE:

COBOL85 Keyword C-Series System Message (ENV is OLD or Omitted)

CPU-DOWN -2 Process MONITORCPUS

NETWORK -8 Change in status of network node

NODE-DOWN -8 Change in status of network node

NODE-UP -8 Change in status of network node

REMOTE-CPU-DOWN -8 Change in status of network node

REMOTE-CPU-UP -8 Change in status of network node

Convert your program as follows:

Continue to use the CPU-DOWN keyword to read system message -2.

Replace the use of the NETWORK keyword with one of NODE-DOWN, NODE-

UP, REMOTE-CPU-DOWN, or REMOTE-CPU-UP, which now correspond to new

system messages as shown in the table below.

Continue with your current use of keywords NODE-DOWN, NODE-UP,

REMOTE-CPU-DOWN, and REMOTE-CPU-UP, but note that these keywords

now read the new D-series system messages as listed in the following table.

COBOL85 Keyword D-Series System Message (ENV is COMMON or LIBRARY)

CPU-DOWN -2 Process MONITORCPUS

NODE-DOWN -110 Loss of communication with node

NODE-UP -111 Establishment of communication with node

REMOTE-CPU-DOWN -100 Remote CPU down

REMOTE-CPU-UP -113 Remote CPU up