Zabbix

/*

** Zabbix

** Copyright (C) 2001-2022 Zabbix SIA

**

** 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "common.h"

#include "sysinfo.h"

#include "log.h"

​

static long hertz = 0;

​

int SYSTEM_UPTIME(AGENT_REQUEST *request, AGENT_RESULT *result)

{

#if defined(HAVE_LIBPERFSTAT)

    perfstat_cpu_total_t    ps_cpu_total;

​

    if (0 >= hertz)

    {

        hertz = sysconf(_SC_CLK_TCK);

​

        if (-1 == hertz)

        {

            SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain clock-tick increment: %s",

                    zbx_strerror(errno)));

            return SYSINFO_RET_FAIL;

        }

​

        if (0 == hertz) /* make sure we do not divide by 0 */

        {

            SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot calculate uptime because clock-tick increment"

                    " is zero."));

            return SYSINFO_RET_FAIL;

        }

    }

​

    /* AIX 6.1 */

    if (-1 == perfstat_cpu_total(NULL, &ps_cpu_total, sizeof(ps_cpu_total), 1))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));

        return SYSINFO_RET_FAIL;

    }

​

    SET_UI64_RESULT(result, (zbx_uint64_t)((double)ps_cpu_total.lbolt / hertz));

​

    return SYSINFO_RET_OK;

#else

    SET_MSG_RESULT(result, zbx_strdup(NULL, "Agent was compiled without support for Perfstat API."));

    return SYSINFO_RET_FAIL;

#endif