With thanks and Regards,
D.SenthilNathan
-----Original Message-----
From: Senthil Nathan
Sent: Wed 10/10/2007 3:21 PM
To: [email protected]
Subject:
Hi All,
We are using net-snmp5.1.2 in timesys distribution on powerpc target.
Here with i have attached my file,we are using the SNMP agent ,external to the
system.
We created the thread , which calls the master agent.
We observed that, when ever we restart the application.we need to restart the
snmpd also.
like "etc/init.d/snmpd" restart command.
Is there any solution for that,to avoid the snmpd restart.
For your reference, i have attached my snmp agent module to you.
Inthis attached file, i felt that i have properly shut down the thread.
looking for your reply.
With thanks and Regards,
D.SenthilNathan
/*
**============================================================================
** SnmpAgent.cpp
**============================================================================
*/
/* includes for snmp agent */
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <signal.h>
#include "SnmpAgent.hpp"
using namespace std;
/* snmp additions */
static int keep_running;
RETSIGTYPE
stop_server(int a) {
keep_running = 0;
}
/*
**============================================================================
** Static Data Member Allocation
**============================================================================
*/
CSnmpAgent * CSnmpAgent::_instance = NULL;
/*
**==============================================================================
** static void* runThread(void* a_ptr)
**------------------------------------------------------------------------------
** DESCRIPTION:
** The Thread function
**
** PARAMETERS:
** > void* a_ptr
** The thread argument i.e pointer to the MsgHandler object
** RETURN: NONE
**
** NOTES:
**
**==============================================================================
*/
static void* runThread(void* a_ptr)
{
CSnmpAgent *oSnmpAgent =(CSnmpAgent*)a_ptr;
/*
** DESCRIPTION: This thread handles running of CLI Agent
** PARAMETERS: NONE (ignored)
** RETURN: NONE (ignored)
** NOTES:
*/
oSnmpAgent->SnmpAgent_Thread();
return NULL;
}
CSnmpAgent *CSnmpAgent::getInstance ()
{
// If singleton already created, return pointer to it
if (_instance == 0)
{
// Ensure serialization (singleGuard) semaphore guarantees a
single instance
if (_instance == 0)
{
_instance = new CSnmpAgent();// Create the singleton
//nCLIPrtNum = nCLiPort ;
}
}
return _instance;
}
CSnmpAgent::CSnmpAgent()
{
startThread(runThread, (void*)this );
}
void * CSnmpAgent::SnmpAgent_Thread()
{
/*snmp specific */
int agentx_subagent=1; /* change this if you want to be a SNMP master
agent */
int background = 0; /* change this if you want to run in the background
*/
int syslog = 0; /* change this if you want to use syslog */
/* start snmp sub agent here */
/* print log errors to syslog or stderr */
if (syslog)
snmp_enable_calllog();
else
snmp_enable_stderrlog();
/* we're an agentx subagent? */
if (agentx_subagent)
{
/* make us a agentx client. */
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
/* run in background, if requested */
if (background && netsnmp_daemonize(1, !syslog))
exit(1);
/* initialize tcpip, if necessary */
SOCK_STARTUP;
/* initialize the agent library */
init_agent("example-demon");
/* mib code: init_nstAgentSubagentObject from
nstAgentSubagentObject.C */
/* add all init functions here */
init_aoltSystemGroup();
init_cardInfoTable();
init_cardStateTable();
init_cardResetTable();
init_glcPortTable();
init_ontActivationTable();
/* initialize vacm/usm access control */
if (!agentx_subagent)
{
//init_vacm_vars();
//init_usmUser();
}
/* example-demon will be used to read example-demon.conf files. */
init_snmp("example-demon");
/* If we're going to be a snmp master agent, initial the ports */
if (!agentx_subagent)
{
init_master_agent(); /* open the port to listen on (defaults to
udp:161) */
}
/* In case we recevie a request to stop (kill -TERM or kill -INT) */
keep_running = 1;
snmp_log(LOG_INFO,"SNMP AgentX is up and running\n");
/* your main loop here... */
while(keep_running)
{
/* if you use select(), see snmp_select_info() in snmp_api(3) */
/* --- OR --- */
agent_check_and_process(1); /* 0 == don't block */
}
/* at shutdown time */
snmp_shutdown("example-demon");
SOCK_CLEANUP;
return 0;
}
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