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 "stats.h"

#include "diskdevices.h"

​

#define ZBX_DEV_PFX "/dev/"

#define ZBX_DEV_READ    0

#define ZBX_DEV_WRITE   1

​

static struct statinfo  *si = NULL;

​

int get_diskstat(const char *devname, zbx_uint64_t *dstat)

{

    int     i;

    struct devstat  *ds = NULL;

    int     ret = FAIL;

    char        dev[DEVSTAT_NAME_LEN + 10];

    const char  *pd;    /* pointer to device name without '/dev/' prefix, e.g. 'da0' */

​

    assert(devname);

​

    for (i = 0; i < ZBX_DSTAT_MAX; i++)

        dstat[i] = (zbx_uint64_t)__UINT64_C(0);

​

    if (NULL == si)

    {

        si = (struct statinfo *)zbx_malloc(si, sizeof(struct statinfo));

        si->dinfo = (struct devinfo *)zbx_malloc(NULL, sizeof(struct devinfo));

        memset(si->dinfo, 0, sizeof(struct devinfo));

    }

​

    pd = devname;

​

    /* skip prefix ZBX_DEV_PFX, if present */

    if ('\0' != *devname && 0 == strncmp(pd, ZBX_DEV_PFX, ZBX_CONST_STRLEN(ZBX_DEV_PFX)))

            pd += ZBX_CONST_STRLEN(ZBX_DEV_PFX);

​

#if DEVSTAT_USER_API_VER >= 5

    if (-1 == devstat_getdevs(NULL, si))

#else

    if (-1 == getdevs(si))

#endif

        return FAIL;

​