> Dave,
> I tried using "netsnmp_register_scalar" for an INTEGER type scalar
> ... and it returned the error No such object instance exists.
> However, if I use netsnmp_register_instance with
> netsnmp_instance_int_handler in netsnmp_create_handler_registration,
> the same works fine.
Did you use the same OID in both cases?
Since 'netsnmp_register_instance' is registering a single instance,
the OID that it registers will be the OID of the instance - including
the final instance subidentifier '0'.
Since 'netsnmp_register_scalar' is registering a scalar object,
(covering both the valid instance and all invalid ones), the OID
that it registers will be the OID of the object - *not* including
the final instance subidentifier '0'.
> Further, if I use netsnmp_scalar_helper_handler in
> netsnmp_create_handler_registration, while using netsnmp_register_instance,
No - that's mixing two different helpers, and I wouldn't expect it to work.
You shouldn't need to mention netsnmp_scalar_helper_handler by name
anyway.
> Further, I could not find any code which declares/defines the function
> "netsnmp_register_scalar_watcher" in the netsnmp source tarball.
> Could it be I am missing something here?
No - I misremembered the name of the routine - sorry.
Try
netsnmp_register_watched_scalar
(in agent/helpers/watcher.c)
Dave
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