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/>.

**/

​

#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;

​

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);