Dave> I've come up with the following list of required tasks facing such
Dave> a helper. What else (or different) would it need to provide?
Dave> SNMP-request handling:
Dave> - register (and unregister) the table
Dave> - add or remove a row to/from the table
Dave> - retrieve the row relating to a specific varbind request
Dave> - retrieve the indexes relating to this row (?)
Dave> External handling
Dave> - retrieve a particular row (specified by index)
Dave> - walk through the rows of the table (order not important)
Dave> I *think* that should cover all requirements. What have I missed?
Wes> I think there are actually 2 cases (Robert and I have been arguing
Wes> about this for ages):
Wes> 1) data stored internally in our MIB structures.
Wes> 2) data stored externally
Wes> And how you treat them is entirely different some of the time.
Quite possibly - but that feels to be jumping ahead a bit.
I'm not thinking about the *how* just yet - I want to be clear
about *what* might be needed first.
Wes> EG, for #1 we need routines to easily access the stored data.
Which is one of the things listed above.
Wes> I'm sure an ideal thing for most people would be a variable-argument
Wes> function to return data based on values passed:
Wes>
Wes> get_my_darn_data(tableptr, indexval1, indexval2, ...)
<Bzzz>
That's "how" again.
I'm not interested in that just yet.
Let's be clear about "What" first.
Wes> Iterating is nice, but really even that requires them to loop
Wes> when we could do it for them most of the time.
But there are tasks where this is exactly what would be required.
(e.g. sending a particular trap to all the entries in the Target Table)
Take another look at the "External handling" list above.
That identifies two basic requirements:
- go straight to a particular row
(details to be determined later)
- do something with every row
Are there any other possibilities that might need to be covered?
Dave
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