Zabbix

/*

** 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 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"

​

int KERNEL_MAXPROC(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    int     ret = SYSINFO_RET_FAIL;

    kstat_ctl_t *kc;

    kstat_t     *kt;

    struct var  *v;

​

    if (NULL == (kc = kstat_open()))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot open kernel statistics facility: %s",

                zbx_strerror(errno)));

        return SYSINFO_RET_FAIL;

    }

​

    if (NULL == (kt = kstat_lookup(kc, "unix", 0, "var")))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot look up in kernel statistics facility: %s",

                zbx_strerror(errno)));

        goto clean;

    }

​

    if (KSTAT_TYPE_RAW != kt->ks_type)

    {

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Information looked up in kernel statistics facility"

                " is of the wrong type."));

        goto clean;

    }

​

    if (-1 == kstat_read(kc, kt, NULL))

    {

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot read from kernel statistics facility: %s",

                zbx_strerror(errno)));

        goto clean;

    }

​

    v = (struct var *)kt->ks_data;

​

    /* int  v_proc;     Max processes system wide */

    SET_UI64_RESULT(result, v->v_proc);

    ret = SYSINFO_RET_OK;