[AGENT++] RE: Lock

[Chaim Turkel - Israel]

It is very easy to replicate the problem.
With the same snmpmanager object. You have one thread for accepting
traps, and another tread for sending snmp requests. You then loop for
multiple calls, while sending traps to your machine and everything
locks.
The way I got around it is to create one snmpmanager for the traps and
another one for the get/set.

Chaim Turkel



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Sent: Tuesday, November 08, 2005 2:04 PM
To: agentpp at agentpp.org
Subject: AGENTPP Digest, Vol 22, Issue 5

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Today's Topics:

   1. Re: Merging the latest code with my old one... (Jochen Katz)
   2. Re: Lock (Jochen Katz)


----------------------------------------------------------------------

Message: 1
Date: Mon, 07 Nov 2005 21:38:25 +0100
From: Jochen Katz <katz at agentpp.com>
Subject: Re: [AGENT++] Merging the latest code with my old one...
To: agentpp at agentpp.org
Message-ID: <436FBB41.4070703 at 2004.joka.homelinux.org>
Content-Type: text/plain; charset=us-ascii

Hi Fedja,

> I am in the middle of merging the latest version of the Agent++ and
> SNMP++ libraries over my older ones and I have a question regarding
> the some changes in SNMP++. For some reason all of the header files
> from the snmp++\include folder are moved into the
> snmp++\include\snmp_pp folder instead. Could anyone give the reason
> why an extra folder requirement in here?

there is only one reason: to make includes unique. If you include
address.h you might include some system header. If you write
snmp_pp/address.h only the snmp++ header is found.

Regards,
  Jochen



------------------------------

Message: 2
Date: Mon, 07 Nov 2005 21:38:27 +0100
From: Jochen Katz <katz at agentpp.com>
Subject: Re: [AGENT++] Lock
To: agent++ <agentpp at agentpp.org>
Message-ID: <436FBB43.60801 at 2004.joka.homelinux.org>
Content-Type: text/plain; charset=us-ascii

Hi,

> I have an application that has a thread to listen to traps, and other
> threads to send. After I get multiple traps in succession, it seems
that
> the whole snmp engine enters into a dead lock.

without more details (stack trace of the blocked threads) I can only
give you the following hint: don't send sync requests from within the
callback function.

Regards,
  Jochen


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