Questions about RequestList::receive

[Mike.Perler____radisys.com]

Hello,

If the RequestList::receive function has an error, it returns a null 
pointer. Is there any way to determine what the error was? I'd like to be 
able to differentiate between a timeout, an invalid community, and an 
actual error in the received SNMP packet.

Also, is there a way to call RequestList::receive such that it won't time 
out?

Thank you,
Michael Perler
Staff Software Engineer
RadiSys Corporation