ZBX_THREAD_ENTRY(listener_thread, pSock)
{
int
ret,
local_request_failed = 0;
zbx_sock_t s;
assert(pSock);
zbx_setproctitle("listener waiting for connection");
zabbix_log( LOG_LEVEL_INFORMATION, "zabbix_agentd listener started");
memcpy(&s, ((zbx_sock_t *)pSock), sizeof(zbx_sock_t));
while(ZBX_IS_RUNNING)
{
if( SUCCEED == (ret = zbx_tcp_accept(&s)) )
{
local_request_failed = 0; /* Reset consecutive errors counter */
zbx_setproctitle("processing request");
zabbix_log(LOG_LEVEL_DEBUG, "Processing request.");
if( SUCCEED == (ret = zbx_tcp_check_security(&s, CONFIG_HOSTS_ALLOWED, 0)) )
{
process_listener(&s);
}
zbx_tcp_unaccept(&s);
}
zbx_setproctitle("listener waiting for connection");
if( SUCCEED == ret ) continue;
zabbix_log(LOG_LEVEL_DEBUG, "Listener error: %s", zbx_tcp_strerror());
if (local_request_failed++ > 1000)
{
zabbix_log( LOG_LEVEL_WARNING, "Too many consecutive errors on accept() call.");
local_request_failed = 0;
}
if(ZBX_IS_RUNNING)
zbx_sleep(1);
}
zabbix_log( LOG_LEVEL_INFORMATION, "zabbix_agentd listener stopped");
ZBX_DO_EXIT();
zbx_tread_exit(0);
}
ZBX_THREAD_ENTRY(active_checks_thread, args)
{
ZBX_THREAD_ACTIVECHK_ARGS activechk_args;
#if defined(ZABBIX_DAEMON)
struct sigaction phan;
#endif /* ZABBIX_DAEMON */
int nextcheck = 0, nextrefresh = 0, nextsend = 0;
char *p = NULL;
#if defined(ZABBIX_DAEMON)
phan.sa_handler = child_signal_handler;
sigemptyset(&phan.sa_mask);
phan.sa_flags = 0;
sigaction(SIGALRM, &phan, NULL);
#endif /* ZABBIX_DAEMON */
activechk_args.host = strdup(((ZBX_THREAD_ACTIVECHK_ARGS *)args)->host);
activechk_args.port = ((ZBX_THREAD_ACTIVECHK_ARGS *)args)->port;
assert(activechk_args.host);
p = strchr(activechk_args.host,',');
if(p) *p = '\0';
zabbix_log( LOG_LEVEL_INFORMATION, "zabbix_agentd active check started [%s:%u]", activechk_args.host, activechk_args.port);
init_active_metrics();
while(ZBX_IS_RUNNING)
{
if(time(NULL) >= nextsend)
{
send_buffer(activechk_args.host, activechk_args.port);
nextsend = (int)time(NULL) + 1;
}
if(time(NULL) >= nextrefresh)
{
zbx_setproctitle("poller [getting list of active checks]");
if(FAIL == refresh_active_checks(activechk_args.host, activechk_args.port))
{
nextrefresh = (int)time(NULL) + 60;
}
else
{
nextrefresh = (int)time(NULL) + CONFIG_REFRESH_ACTIVE_CHECKS;
}
}
if(time(NULL) >= nextcheck)
{
zbx_setproctitle("poller [processing active checks]");
process_active_checks(activechk_args.host, activechk_args.port);
nextcheck = get_min_nextcheck();
if(FAIL == nextcheck) nextcheck = (int)time(NULL) + 60;
}
else
{
zabbix_log(LOG_LEVEL_DEBUG, "Sleeping for %d seconds", 1 );
zbx_setproctitle("poller [sleeping for %d seconds]", 1);
zbx_sleep(1);
}
}
zbx_free(activechk_args.host);
free_active_metrics();
zabbix_log( LOG_LEVEL_INFORMATION, "zabbix_agentd active check stopped");
ZBX_DO_EXIT();
zbx_tread_exit(0);
}