Thanks Dave!
Dave Shield escribió:
> On 07/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
>> 1- the data from the MIB table will be collected periodically from other
>> processes, and be probably cached for some time; is table_iterator the
>> right choice?
>
> It can certainly be used that way.
>
> mib2c -S cache=1 -c mib2c.iterator.conf ...
>
> should generate a suitable template.
>
>
>> 2- mib2c created a list representing the table. Will net-snmp browse
>> this table to look for the data or should the data be obtained from
>> another source (programatically or from another data structure)?
>
> The template code generated will walk this list.
> You can set the cache_load routine to build it from some external source.
>
> Alternatively, you can amend the get_{first,next} routines to read the
> data from elsewhere instead. That list is primarily to illustrate how
> to handle things, rather than forcing you to work this exact way.
>
>
>
>> 3- where is the 'data context' stored (I don't see where it gets
>> 'registered')? What is it for (to be able to keep an additional data
>> structure other than the table itself)?
>
> The data_context is your handle on a particular row of the table.
> This is what's passed to the handler routine (via
> 'netsnmp_extract_iterator_context')
> Your haqndler then uses this to retrieve the appropriate column value
> from that particular row.
>
>
>
>> 4- what information does the 'netsnmp_variable_list' hold in
>> '_get_next_data_point' and '_get_first_data_point'?
>
> The index value(s) for each row in turn.
>
>
>> 5- is there a full documentation for the API (is there doc for
>> 'snmp_set_var_typed_value' for example)?
>
> Probably not.
> There's some info on the project web pages (Documentation->API),
> auto-generated from the code files. Not sure that this counts as
> "full documentation" though.
>
> Dave
>
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