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.

**/

​

#ifndef ZABBIX_DISKDEVICES_H

#define ZABBIX_DISKDEVICES_H

​

#ifdef _WINDOWS

#   error "This module allowed only for Unix OS"

#endif

​

#include "zbxsysinfo.h"

​

#define MAX_DISKDEVICES 1024

​

/* Disk device time to live: if disk statistics is being collected but not polled (using passive  */

/* or active check) DISKDEVICE_TTL or more seconds then delete this disk from collector.          */

/* Update interval for vfs.dev.read[] and vfs.dev.write[] items must be less than DISKDEVICE_TTL. */

#define DISKDEVICE_TTL  (3 * SEC_PER_HOUR)

​

typedef struct c_single_diskdevice_data

{

    char        name[32];

    int     index;

    /* Counter used to detect devices no longer polled and to delete them from collector. It is set */

    /* to 0 when disk statistics is polled and incremented when disk statistics is updated. For     */

    /* example, value 3600 means that approximately 1 hour statistics was not polled for this disk. */

    int         ticks_since_polled;

    time_t      clock[ZBX_MAX_COLLECTOR_HISTORY];

    zbx_uint64_t    r_sect[ZBX_MAX_COLLECTOR_HISTORY];

    zbx_uint64_t    r_oper[ZBX_MAX_COLLECTOR_HISTORY];

    zbx_uint64_t    r_byte[ZBX_MAX_COLLECTOR_HISTORY];

    zbx_uint64_t    w_sect[ZBX_MAX_COLLECTOR_HISTORY];

    zbx_uint64_t    w_oper[ZBX_MAX_COLLECTOR_HISTORY];

    zbx_uint64_t    w_byte[ZBX_MAX_COLLECTOR_HISTORY];

    double      r_sps[ZBX_AVG_COUNT];

    double      r_ops[ZBX_AVG_COUNT];

    double      r_bps[ZBX_AVG_COUNT];

    double      w_sps[ZBX_AVG_COUNT];

    double      w_ops[ZBX_AVG_COUNT];

    double      w_bps[ZBX_AVG_COUNT];

} ZBX_SINGLE_DISKDEVICE_DATA;

​

typedef struct c_diskdevices_data

{

    int             count;      /* number of disks to collect statistics for */

    int             max_diskdev;    /* number of "slots" for disk statistics */

    ZBX_SINGLE_DISKDEVICE_DATA  device[1];  /* more "slots" for disk statistics added dynamically */

} ZBX_DISKDEVICES_DATA;

​

#define DISKDEVICE_COLLECTOR_STARTED(collector) ((collector) && (collector)->diskstat_shmid != ZBX_NONEXISTENT_SHMID)

​

ZBX_SINGLE_DISKDEVICE_DATA  *collector_diskdevice_get(const char *devname);

ZBX_SINGLE_DISKDEVICE_DATA  *collector_diskdevice_add(const char *devname);

void                collect_stats_diskdevices(void);

​

#endif