Re: netsnmp_tdata * table_data structure

2008/7/17 Richard Horton <[email protected]>:
> What I can't find documented inside net-snmp either online or in code
> is how to populate the table_data part of the call with the
> information I wish to add prior to calling *_createEntry.

You don't.
The 'table_data' structure is a black-box, containing the overall
table.   You shouldn't meddle with it.


> For instance my table is made up as follows (for the sake of brevity
> I've trimmed the common prefix):-
>
> tableIndex  -- Integer with a range of 0 to 255
> name          -- String - 0 to 255 characters long
> ifName        -- String - 0 to 255 characters long
> state           -- integer - range of 0 to 3.
>
> I'd like to pre-populate a few rows of the table on startup with some
> default names etc...

Having created and registered the table, you can then invoke
the 'createEntry' routine as many times as is required, giving
the index of each of the initial rows.

  This call will pass back an empty row structure, which you
can then populate with the name/ifName/state/etc

I.e.

     netsnmp_tdata_row *row;
     struct myTable_row *entry;

     row = myTable_createEntry( table_data,  1 );
     entry = (struct myTable_row *)row->data;
     entry->name = "row 1"
     entry->ifName = "eth0";
     entry->status = UNKNOWN;

     row = myTable_createEntry( table_data,  2 );
     entry = (struct myTable_row *)row->data;
     entry->name = "row 2"
     entry->ifName = "eth1";
     entry->status = IMAGINARY;

etc

Dave

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