[SNMP4J] Sending traps and receiving/responding to requests...

[Bruno Tessier]

Thanks Frank, your help and responsiveness is always appreciated.

About 5 minutes before you replied, I ended up figuring it out.  I dug
through the code, down to the TransportMapping, and found out what you
just mentioned.  I guess I've learned my lesson:  never pull the trigger
too quickly again (especially when we have access to the source code
like that)!  If I had dug through the code in the first place, I
would've saved you and others some time...

Thanks again, and sorry for the trouble.

Bruno


> -----Original Message-----
> From: Frank Fock [mailto:fock at agentpp.com] 
> Sent: Thursday, April 06, 2006 12:46 PM
> To: Bruno Tessier
> Cc: snmp4j at agentpp.org
> Subject: Re: [SNMP4J] Sending traps and receiving/responding 
> to requests...
> 
> 
> Hi,
> 
> By calling "this.wait();" you are suspending the current 
> thread. If you do this inside the processPdu method you 
> create a deadlock.
> 
> Normally "this.wait();" is not necessary nor feasible
> to wait for an incoming request. The "waiting" is already
> done in the TransportMapping instance.
> 
> Best regards,
> Frank
> 
> 
> Bruno Tessier wrote:
> > Oh, I forgot to explain that I want my application (agent) to be 
> > waiting around for incoming GET requests, which is why I am 
> using the 
> > call to "this.wait()".  When a request comes in, it will 
> process it, 
> > send the response, and go back to waiting mode.  But while it is 
> > waiting (or even while it is processing requests), I would 
> also like 
> > to be able to send traps from it, when some conditions that 
> my agent 
> > is monitoring are met.
> > 
> > 
> > As mentioned in my previous message, I would like to be 
> able to do all 
> > of this from the same application, using the same Snmp 
> object.  I've 
> > been able to send traps, I've been able to wait for 
> incoming requests 
> > and process them, but I haven't been able yet to get both 
> to work in 
> > the same app using the same Snmp object.  It seems the call to 
> > "this.wait()" (is this really needed, or is there another 
> way to make 
> > my app wait for incoming requests?) blocks my app from 
> doing anything 
> > else, in this case, send traps.
> > 
> > Any ideas, examples, anything?
> > 
> > Thanks
> >  
> > 
> >>  -----Original Message-----
> >> From: 	Bruno Tessier  
> >> Sent:	Wednesday, April 05, 2006 5:03 PM
> >> To:	'snmp4j at agentpp.org'
> >> Subject:	Sending traps and receiving/responding to requests...
> >>
> >> Hi,
> >>
> >> This is similar to another topic posted in March, but in this
> >> case the roles are reversed.  While the other topic was about 
> >> receiving traps and sending requests using the same Snmp 
> >> (snmp4j class) instance (i.e. creating a manager), mine is 
> >> about sending traps and receiving requests using the same 
> >> Snmp instance (i.e. creating an agent).  I read through the 
> >> answer of the other topic I'm talking about (title: [SNMP4J] 
> >> Writinf SNMP Manager using SNMP4J), and I doubt it would help 
> >> in my case.
> >>
> >> I would like to do both things (send traps and receive
> >> requests) in the same class, using the same Snmp instance, is 
> >> is possible?  
> >>
> >> Right now, my class extends Thread and implements
> >> CommandResponder, and when I initialize the Transport object 
> >> and the Snmp object, at one point I call the listen() method 
> >> of Transport, and right after that, when I'm ready to have my 
> >> class wait for incoming requests, I call "this.wait()".  I 
> >> can get the incoming requests and process them OK, but the 
> >> problem is while my class is waiting for these requests to 
> >> come in, I'm trying to trigger it to send a trap, and that is 
> >> not working.
> >>
> >> I don't know, maybe I should be using CommandProcessor
> >> instead of CommandResponder, but there not a lot of 
> >> documentation about this class and its methods.  Any 
> >> help/examples available?
> >>
> >> Thanks,
> >> Bruno
> >>
> >>
> > _______________________________________________
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> 
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