Guardian Application Conversion Guide

Opening and Communicating With a High-PIN Server
Converting COBOL85 Applications
4–20 096047 Tandem Computers Incorporated
Reading Process-Deletion System Messages. Your requester might monitor a server
process by using the following keywords to read process-deletion system messages
from $RECEIVE:
COBOL85 Keyword C-Series System Message (ENV is OLD or Omitted)
CPU-DOWN -2 CPU down: named process deletion
STOP -5 Process normal deletion: Stop
ABEND -6 Process abnormal deletion: Abend
PROCESS-DELETION -2
-5
-6
CPU down: named process deletion
Process normal deletion: Stop
Process abnormal deletion: Abend
Convert your requester to use the PROCESS-DELETION keyword to read and process
message -101 (Process deletion), which supersedes all the above messages:
COBOL85 Keyword D-Series System Message (ENV is COMMON or LIBRARY)
PROCESS-DELETION -101 Process deletion
Reading Status-Change System Messages. Your requester might monitor a server process
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