Mixing sync and async calls?

Greetings,

I'm writing a program that, in essence, polls a number of devices
simultaneously. They're slow to respond individually, and I have a lot to
go through - doing them sequentially would take forever. I set up a
callback function and send my requests off via snmp_send(), use snmp_wait()
and everything is happy.

However, in one case, while processing the async response in my callback
function, I need to fetch a different piece of information before I can
finish with processing. I make an entire new SNMP session, and send it off
to snmp_synch_response.

Unfortuantely, snmp_synch_response never returns - it looks like it sends
the request off and uses snmp_wait(), but that unfortuantely just goes back
to processing the async responses. This eventually just blows over the
stack (hitting bt in gdb and getting 500+ stack frames is not a pleasant
experience).

Right now, I'm looking at having to just call the command-line snmpget to do
what I want (it would be rather difficult to get this fed back into the
async processing) - is that the only solution to this? Is there a way to
get NET-SNMP to ignore the async requests while its supposed to be
processing the single sync request?

Any help is appreciated, thanks.

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