You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
3.3 KiB
90 lines
3.3 KiB
1 year ago
|
/*
|
||
|
|
** 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_ZBXTRENDS_H
|
||
|
|
#define ZABBIX_ZBXTRENDS_H
|
||
|
|
|
||
|
|
#include "zbxeval.h"
|
||
|
|
#include "zbxtime.h"
|
||
|
|
|
||
|
|
/* value_avg_t structure is used for item average value trend calculations. */
|
||
|
|
/* */
|
||
|
|
/* For double values the average value is calculated on the fly with the */
|
||
|
|
/* following formula: avg = (dbl * count + value) / (count + 1) and stored */
|
||
|
|
/* into dbl member. */
|
||
|
|
/* For uint64 values the item values are summed into ui64 member and the */
|
||
|
|
/* average value is calculated before flushing trends to database: */
|
||
|
|
/* avg = ui64 / count */
|
||
|
|
typedef union
|
||
|
|
{
|
||
|
|
double dbl;
|
||
|
|
zbx_uint128_t ui64;
|
||
|
|
}
|
||
|
|
zbx_value_avg_t;
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
zbx_uint64_t itemid;
|
||
|
|
zbx_history_value_t value_min;
|
||
|
|
zbx_value_avg_t value_avg;
|
||
|
|
zbx_history_value_t value_max;
|
||
|
|
int clock;
|
||
|
|
int num;
|
||
|
|
int disable_from;
|
||
|
|
unsigned char value_type;
|
||
|
|
}
|
||
|
|
ZBX_DC_TREND;
|
||
|
|
|
||
|
|
int zbx_trends_parse_base(const char *params, zbx_time_unit_t *base, char **error);
|
||
|
|
int zbx_trends_parse_timeshift(time_t from, const char *timeshift, struct tm *tm, char **error);
|
||
|
|
|
||
|
|
int zbx_trends_parse_range(time_t from, const char *param, time_t *start, time_t *end, char **error);
|
||
|
|
int zbx_trends_parse_nextcheck(time_t from, const char *period_shift, time_t *nextcheck, char **error);
|
||
|
|
|
||
|
|
int zbx_trends_eval_avg(const char *table, zbx_uint64_t itemid, time_t start, time_t end, double *value,
|
||
|
|
char **error);
|
||
|
|
int zbx_trends_eval_count(const char *table, zbx_uint64_t itemid, time_t start, time_t end, double *value,
|
||
|
|
char **error);
|
||
|
|
int zbx_trends_eval_max(const char *table, zbx_uint64_t itemid, time_t start, time_t end, double *value,
|
||
|
|
char **error);
|
||
|
|
int zbx_trends_eval_min(const char *table, zbx_uint64_t itemid, time_t start, time_t end, double *value,
|
||
|
|
char **error);
|
||
|
|
int zbx_trends_eval_sum(const char *table, zbx_uint64_t itemid, time_t start, time_t end, double *value,
|
||
|
|
char **error);
|
||
|
|
|
||
|
|
/* trends function cache */
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
zbx_uint64_t hits;
|
||
|
|
zbx_uint64_t misses;
|
||
|
|
zbx_uint64_t items_num;
|
||
|
|
zbx_uint64_t requests_num;
|
||
|
|
}
|
||
|
|
zbx_tfc_stats_t;
|
||
|
|
|
||
|
|
int zbx_tfc_init(zbx_uint64_t cache_size, char **error);
|
||
|
|
void zbx_tfc_destroy(void);
|
||
|
|
int zbx_tfc_get_stats(zbx_tfc_stats_t *stats, char **error);
|
||
|
|
void zbx_tfc_invalidate_trends(ZBX_DC_TREND *trends, int trends_num);
|
||
|
|
|
||
|
|
int zbx_baseline_get_data(zbx_uint64_t itemid, unsigned char value_type, time_t now, const char *period,
|
||
|
|
int season_num, zbx_time_unit_t season_unit, int skip, zbx_vector_dbl_t *values,
|
||
|
|
zbx_vector_uint64_t *index, char **error);
|
||
|
|
#endif
|