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/*
** ZABBIX
** Copyright (C) 2000-2006 SIA Zabbix
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**/
#include "common.h"
#include "cfg.h"
#include "db.h"
#include "log.h"
#include "zlog.h"
#include "nodewatcher.h"
#include "nodesender.h"
#include "history.h"
/******************************************************************************
* *
* Function: is_master_node *
* *
* Purpose: *
* *
* Parameters: *
* *
* Return value: SUCCEED - nodeid is master node *
* FAIL - nodeid is slave node *
* *
* Author: Aleksander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int is_master_node(int current_nodeid, int nodeid)
{
DB_RESULT dbresult;
DB_ROW dbrow;
int res = FAIL;
dbresult = DBselect("select masterid from nodes where nodeid=%d",
current_nodeid);
if (NULL != (dbrow = DBfetch(dbresult))) {
current_nodeid = atoi(dbrow[0]);
if (current_nodeid == nodeid)
res = SUCCEED;
else if (0 != current_nodeid)
res = is_master_node(current_nodeid, nodeid);
}
DBfree_result(dbresult);
return res;
}
/******************************************************************************
* *
* Function: main_nodewatcher_loop *
* *
* Purpose: periodically calculates checks sum of config data *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Alexei Vladishev *
* *
* Comments: never returns *
* *
******************************************************************************/
int main_nodewatcher_loop()
{
int start, end;
int lastrun = 0;
zabbix_log( LOG_LEVEL_DEBUG, "In main_nodeupdater_loop()");
for(;;)
{
start = time(NULL);
zbx_setproctitle("connecting to the database");
zabbix_log( LOG_LEVEL_DEBUG, "Starting sync with nodes");
DBconnect(ZBX_DB_CONNECT_NORMAL);
if(lastrun + 120 < start)
{
process_nodes();
lastrun = start;
}
/* Send new history data to master node */
main_historysender();
DBclose();
end = time(NULL);
if(end-start<10)
{
zbx_setproctitle("sender [sleeping for %d seconds]",
10-(end-start));
zabbix_log( LOG_LEVEL_DEBUG, "Sleeping %d seconds",
10-(end-start));
sleep(10-(end-start));
}
}
}
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