[SNMP4J] Threading structure in TestAgent/BaseAgent

[pradip de]

Ok. Sorry if I wasnt able to point to the right place. I was using the
TestAgent.java from (
http://kickjava.com/src/org/snmp4j/agent/test/TestAgent.java.htm) and
noticed the while(true) with a sleep(1000) loop in its line 338 in the main
function which seems like a busy wait. My question was regarding the
motivation for this infinite loop to prevent the main agent thread from
exiting. Is this specifically because the listen() was deliberately not made
blocking? Is there a better way than using this infinite loop?
thanks,
Pradip

On Fri, Aug 28, 2009 at 2:34 PM, Frank Fock <fock at agentpp.com> wrote:

>
> Hi Pradip,
>
> Session.listen() does not block.
> The rest of you assumptions do not match
> with SNMP4J either and I am a bit confused
> about them. Please read RFC 3410 to 3418
> to get a better understanding of the
> SNMP architecture.
>
> Best regards,
> Frank
>
> pradip de wrote:
>
>> Hi,
>> I am trying to understand the threading structure of TestAgent.java for my
>> own implementation of an SNMP agent. My question is basically regarding
>> the
>> busy wait that is there with a periodic Thread.sleep(). Why doesnt the
>> BaseAgent have a while(true) loop around the session.listen() ( which I
>> believe is a blocking function on incoming requests ) instead of the busy
>> wait in TestAgent? Or am I missing something here? There must be a
>> listening
>> mechanims in a loop somewhere that allows the agent to respond to multiple
>> SNMP requests.
>> As an associated question, I am trying to have my TestAgent implement a
>> listener to a messagequeue to send traps out. However, it maybe getting
>> blocked by the busy wait in the main thread.
>> I would really appreciate if someone could clarify these points for me and
>> give me suggestions on how to make the agent also be a subscriber to some
>> published queueing mechanism to pick up messages for sending traps out.
>>
>> thanks,
>> Pradip
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>>
>
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