Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 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 "zbxsysinfo.h"

#include "../sysinfo.h"

​

#ifdef HAVE_LIBPERFSTAT

​

static perfstat_memory_total_t  m;

​

#define ZBX_PERFSTAT_PAGE_SHIFT 12  /* 4 KB */

​

#define ZBX_PERFSTAT_MEMORY_TOTAL()                                 \

                                                    \

    if (-1 == perfstat_memory_total(NULL, &m, sizeof(m), 1))                    \

    {                                               \

        SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s",   \

                zbx_strerror(errno)));                          \

        return SYSINFO_RET_FAIL;                                \

    }

​

static int  vm_memory_total(AGENT_RESULT *result)

{

    ZBX_PERFSTAT_MEMORY_TOTAL();

​

    /* total real memory in pages */

    SET_UI64_RESULT(result, m.real_total << ZBX_PERFSTAT_PAGE_SHIFT);

​

    return SYSINFO_RET_OK;

}

​

static int  vm_memory_pinned(AGENT_RESULT *result)

{

    ZBX_PERFSTAT_MEMORY_TOTAL();

​

    /* real memory which is pinned in pages */

    SET_UI64_RESULT(result, m.real_pinned << ZBX_PERFSTAT_PAGE_SHIFT);

​

    return SYSINFO_RET_OK;

}

​

static int  vm_memory_free(AGENT_RESULT *result)

{

    ZBX_PERFSTAT_MEMORY_TOTAL();

​

    /* free real memory in pages */

    SET_UI64_RESULT(result, m.real_free << ZBX_PERFSTAT_PAGE_SHIFT);