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