Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zbxsysinfo.h"

#include "../sysinfo.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;

​

    ZBX_UNUSED(request);

​

    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

    ZBX_UNUSED(request);

​

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

​

    return SYSINFO_RET_FAIL;

#endif

}