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_METRICS_H

#define ZABBIX_METRICS_H

​

#include "zbxalgo.h"

​

/* define minimal and maximal values of lines to send by agent */

/* per second for checks `log' and `eventlog', used to parse key parameters */

#define MIN_VALUE_LINES         1

#define MAX_VALUE_LINES         1000

#define MAX_VALUE_LINES_MULTIPLIER  10

​

/* NB! Next list must fit in unsigned char (see zbx_active_metric_t "flags" field below). */

#define ZBX_METRIC_FLAG_PERSISTENT  0x01    /* do not overwrite old values when adding to the buffer */

#define ZBX_METRIC_FLAG_NEW     0x02    /* new metric, just added */

#define ZBX_METRIC_FLAG_LOG_LOG     0x04    /* log[ or log.count[, depending on ZBX_METRIC_FLAG_LOG_COUNT */

#define ZBX_METRIC_FLAG_LOG_LOGRT   0x08    /* logrt[ or logrt.count[, depending on ZBX_METRIC_FLAG_LOG_COUNT */

#define ZBX_METRIC_FLAG_LOG_EVENTLOG    0x10    /* eventlog[ */

#define ZBX_METRIC_FLAG_LOG_COUNT   0x20    /* log.count[ or logrt.count[ */

#define ZBX_METRIC_FLAG_LOG         /* item for log file monitoring, one of the above */    \

        (ZBX_METRIC_FLAG_LOG_LOG | ZBX_METRIC_FLAG_LOG_LOGRT | ZBX_METRIC_FLAG_LOG_EVENTLOG)

​

typedef struct

{

    zbx_uint64_t        itemid;

    char            *key;

    char            *delay;

    zbx_uint64_t        lastlogsize;

    int         nextcheck;

    int         mtime;

    unsigned char       skip_old_data;  /* for processing [event]log metrics */

    unsigned char       flags;

    unsigned char       state;

    int         big_rec;    /* for logfile reading: 0 - normal record, 1 - long unfinished record */

    int         use_ino;    /* 0 - do not use inodes (on FAT, FAT32) */

                        /* 1 - use inodes (up to 64-bit) (various UNIX file systems, NTFS) */

                        /* 2 - use 128-bit FileID (currently only on ReFS) to identify files */

                        /* on a file system */

    int         error_count;    /* number of file reading errors in consecutive checks */

    int         logfiles_num;

    struct st_logfile   *logfiles;  /* for handling of logfile rotation for logrt[], logrt.count[] items */

    double          start_time; /* Start time of check for log[], log.count[], logrt[], logrt.count[] */

                        /* items. Used for measuring duration of checks. */

    zbx_uint64_t        processed_bytes;    /* number of processed bytes for log[], log.count[], logrt[], */

                            /* logrt.count[] items */

    char            *persistent_file_name;  /* not used on Microsoft Windows */

​

    int         timeout;

}

zbx_active_metric_t;