SNMP Subagent Programmer's Guide

Programming Tutorials
SNMP Subagent Programmer’s Guide—119728 2-19
Nowaited Hello World Program
Logic Flow
Figure 2-2 illustrates how Nowaited Hello World uses management functions and
Guardian procedure calls.
Figure 2-2. Logic Flow for Nowaited Hello World
mgmt_init_env()
(Initialize
management
environment)
mgmt_new_instance()
(Register MIB)
204
mgmt_poll()
(Process SNMP
request)
YES
NO
mgmt_del_instance()
(De-register MIB)
NO
mgmt_trap()
(Send trap)
Did
helloPrintFreq
value change
?
YES
Still
connected to
agent
?
Stop
mgmt_term_env()
(Terminate
management)
mgmt_read_nowait()
(Initiate nowait read
from agent)
AWAITIOX
(Detect I/O operation
completion)
Did I/O
operation
complete
?
Is input from
agent
?
Did a
timeout occur
?
FILE_GETINFO_
(Determine why I/O did
not complete)
YES
NO
YES
NO
YES NO
Start
Print
message