Merging upstream version 1.11.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 136 insertions, 0 deletions

diff --git a/database/rrdcalc.h b/database/rrdcalc.h
new file mode 100644
index 000000000..0c7cd0aa1
--- /dev/null
+++ b/database/rrdcalc.h
@@ -0,0 +1,136 @@
+// 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_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