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// SPDX-License-Identifier: GPL-3.0-or-later
#include "rrd.h"
#ifndef NETDATA_RRDCALC_H
#define NETDATA_RRDCALC_H 1
// calculated variables (defined in health configuration)
// These aggregate time-series data at fixed intervals
// (defined in their update_every member below)
// They increase the overhead of netdata.
//
// These calculations are allocated and linked (->next)
// under RRDHOST.
// Then are also linked to RRDSET (of course only when the
// chart is found, via ->rrdset_next and ->rrdset_prev).
// This double-linked list is maintained sorted at all times
// having as RRDSET.calculations the RRDCALC to be processed
// next.
#define RRDCALC_FLAG_DB_ERROR 0x00000001
#define RRDCALC_FLAG_DB_NAN 0x00000002
/* #define RRDCALC_FLAG_DB_STALE 0x00000004 */
#define RRDCALC_FLAG_CALC_ERROR 0x00000008
#define RRDCALC_FLAG_WARN_ERROR 0x00000010
#define RRDCALC_FLAG_CRIT_ERROR 0x00000020
#define RRDCALC_FLAG_RUNNABLE 0x00000040
#define RRDCALC_FLAG_DISABLED 0x00000080
#define RRDCALC_FLAG_SILENCED 0x00000100
#define RRDCALC_FLAG_NO_CLEAR_NOTIFICATION 0x80000000
struct rrdcalc {
uint32_t id; // the unique id of this alarm
uint32_t next_event_id; // the next event id that will be used for this alarm
char *name; // the name of this alarm
uint32_t hash;
char *exec; // the command to execute when this alarm switches state
char *recipient; // the recipient of the alarm (the first parameter to exec)
char *chart; // the chart id this should be linked to
uint32_t hash_chart;
char *source; // the source of this alarm
char *units; // the units of the alarm
char *info; // a short description of the alarm
int update_every; // update frequency for the alarm
// the red and green threshold of this alarm (to be set to the chart)
calculated_number green;
calculated_number red;
// ------------------------------------------------------------------------
// database lookup settings
char *dimensions; // the chart dimensions
RRDR_GROUPING group; // grouping method: average, max, etc.
int before; // ending point in time-series
int after; // starting point in time-series
uint32_t options; // calculation options
// ------------------------------------------------------------------------
// expressions related to the alarm
EVAL_EXPRESSION *calculation; // expression to calculate the value of the alarm
EVAL_EXPRESSION *warning; // expression to check the warning condition
EVAL_EXPRESSION *critical; // expression to check the critical condition
// ------------------------------------------------------------------------
// notification delay settings
int delay_up_duration; // duration to delay notifications when alarm raises
int delay_down_duration; // duration to delay notifications when alarm lowers
int delay_max_duration; // the absolute max delay to apply to this alarm
float delay_multiplier; // multiplier for all delays when alarms switch status
// while now < delay_up_to
// ------------------------------------------------------------------------
// runtime information
RRDCALC_STATUS status; // the current status of the alarm
calculated_number value; // the current value of the alarm
calculated_number old_value; // the previous value of the alarm
uint32_t rrdcalc_flags; // check RRDCALC_FLAG_*
time_t last_updated; // the last update timestamp of the alarm
time_t next_update; // the next update timestamp of the alarm
time_t last_status_change; // the timestamp of the last time this alarm changed status
time_t db_after; // the first timestamp evaluated by the db lookup
time_t db_before; // the last timestamp evaluated by the db lookup
time_t delay_up_to_timestamp; // the timestamp up to which we should delay notifications
int delay_up_current; // the current up notification delay duration
int delay_down_current; // the current down notification delay duration
int delay_last; // the last delay we used
// ------------------------------------------------------------------------
// variables this alarm exposes to the rest of the alarms
RRDVAR *local;
RRDVAR *family;
RRDVAR *hostid;
RRDVAR *hostname;
// ------------------------------------------------------------------------
// the chart this alarm it is linked to
struct rrdset *rrdset;
// linking of this alarm on its chart
struct rrdcalc *rrdset_next;
struct rrdcalc *rrdset_prev;
struct rrdcalc *next;
};
#define RRDCALC_HAS_DB_LOOKUP(rc) ((rc)->after)
extern void rrdsetcalc_link_matching(RRDSET *st);
extern void rrdsetcalc_unlink(RRDCALC *rc);
extern RRDCALC *rrdcalc_find(RRDSET *st, const char *name);
extern const char *rrdcalc_status2string(RRDCALC_STATUS status);
extern void rrdcalc_free(RRDCALC *rc);
extern void rrdcalc_unlink_and_free(RRDHOST *host, RRDCALC *rc);
extern int rrdcalc_exists(RRDHOST *host, const char *chart, const char *name, uint32_t hash_chart, uint32_t hash_name);
extern uint32_t rrdcalc_get_unique_id(RRDHOST *host, const char *chart, const char *name, uint32_t *next_event_id);
extern RRDCALC *rrdcalc_create(RRDHOST *host, RRDCALCTEMPLATE *rt, const char *chart);
extern void rrdcalc_create_part2(RRDHOST *host, RRDCALC *rc);
#endif //NETDATA_RRDCALC_H
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