Re: threads and SNMP Session

I think you may be out of luck with using this module and threads together, From a cursory browse of the XS component of this module, it seems to make extensive use of static data areas. If my reading is correct, the module will be trying to reuse those same static C variables in conjunction with all your threads, and that obviously isn't going to work.

However, from a cursory reading of the docs, you probably don't need to be using threading or forks for this. The module has built in asynchronous capabilities. You simply pass a callback address on each (f)get(next)() of set() call and then enter it's event loop &SNMP::MainLoop([<timeout>, [<callback>]]) and your queries will call your code when the results arrive.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

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Re^2: threads and SNMP Session by Otogi (Beadle) on Dec 20, 2005 at 00:00 UTC
While searching on the internet I found many references to this solution yet no example that implements it or good documentation. If you know of any please post the links. Thank you	[reply]
Re^3: threads and SNMP Session by BrowserUk (Patriarch) on Dec 20, 2005 at 00:14 UTC
If you are issuing identical requests to multiple hosts, you can just use SNMP::Multi and forget about the details :) If not, take a look at the source for SNMP::Multi, in particular the `request()` & `execute()` subs, to see what needs to be done. Basically, loop over the hosts issuing your get()s and passing a callback, (closures would be good here), and then enter the MainLoop and allow it to go to work. Of course, there's a bit more to it that that with timeouts, retries and collating the information returned. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal? "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l] [select]