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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef NETDATA_RRD_H
#define NETDATA_RRD_H 1
// forward typedefs
typedef struct rrdhost RRDHOST;
typedef struct rrddim RRDDIM;
typedef struct rrdset RRDSET;
typedef struct rrdvar RRDVAR;
typedef struct rrdsetvar RRDSETVAR;
typedef struct rrddimvar RRDDIMVAR;
typedef struct rrdcalc RRDCALC;
typedef struct rrdcalctemplate RRDCALCTEMPLATE;
typedef struct alarm_entry ALARM_ENTRY;
#include "../daemon/common.h"
#include "web/api/queries/query.h"
#include "rrdvar.h"
#include "rrdsetvar.h"
#include "rrddimvar.h"
#include "rrdcalc.h"
#include "rrdcalctemplate.h"
#define UPDATE_EVERY 1
#define UPDATE_EVERY_MAX 3600
#define RRD_DEFAULT_HISTORY_ENTRIES 3600
#define RRD_HISTORY_ENTRIES_MAX (86400*365)
extern int default_rrd_update_every;
extern int default_rrd_history_entries;
extern int gap_when_lost_iterations_above;
extern time_t rrdset_free_obsolete_time;
#define RRD_ID_LENGTH_MAX 200
#define RRDSET_MAGIC "NETDATA RRD SET FILE V019"
#define RRDDIMENSION_MAGIC "NETDATA RRD DIMENSION FILE V019"
typedef long long total_number;
#define TOTAL_NUMBER_FORMAT "%lld"
// ----------------------------------------------------------------------------
// chart types
typedef enum rrdset_type {
RRDSET_TYPE_LINE = 0,
RRDSET_TYPE_AREA = 1,
RRDSET_TYPE_STACKED = 2
} RRDSET_TYPE;
#define RRDSET_TYPE_LINE_NAME "line"
#define RRDSET_TYPE_AREA_NAME "area"
#define RRDSET_TYPE_STACKED_NAME "stacked"
RRDSET_TYPE rrdset_type_id(const char *name);
const char *rrdset_type_name(RRDSET_TYPE chart_type);
// ----------------------------------------------------------------------------
// memory mode
typedef enum rrd_memory_mode {
RRD_MEMORY_MODE_NONE = 0,
RRD_MEMORY_MODE_RAM = 1,
RRD_MEMORY_MODE_MAP = 2,
RRD_MEMORY_MODE_SAVE = 3,
RRD_MEMORY_MODE_ALLOC = 4
} RRD_MEMORY_MODE;
#define RRD_MEMORY_MODE_NONE_NAME "none"
#define RRD_MEMORY_MODE_RAM_NAME "ram"
#define RRD_MEMORY_MODE_MAP_NAME "map"
#define RRD_MEMORY_MODE_SAVE_NAME "save"
#define RRD_MEMORY_MODE_ALLOC_NAME "alloc"
extern RRD_MEMORY_MODE default_rrd_memory_mode;
extern const char *rrd_memory_mode_name(RRD_MEMORY_MODE id);
extern RRD_MEMORY_MODE rrd_memory_mode_id(const char *name);
// ----------------------------------------------------------------------------
// algorithms types
typedef enum rrd_algorithm {
RRD_ALGORITHM_ABSOLUTE = 0,
RRD_ALGORITHM_INCREMENTAL = 1,
RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL = 2,
RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL = 3
} RRD_ALGORITHM;
#define RRD_ALGORITHM_ABSOLUTE_NAME "absolute"
#define RRD_ALGORITHM_INCREMENTAL_NAME "incremental"
#define RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL_NAME "percentage-of-incremental-row"
#define RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL_NAME "percentage-of-absolute-row"
extern RRD_ALGORITHM rrd_algorithm_id(const char *name);
extern const char *rrd_algorithm_name(RRD_ALGORITHM algorithm);
// ----------------------------------------------------------------------------
// RRD FAMILY
struct rrdfamily {
avl avl;
const char *family;
uint32_t hash_family;
size_t use_count;
avl_tree_lock rrdvar_root_index;
};
typedef struct rrdfamily RRDFAMILY;
// ----------------------------------------------------------------------------
// flags
// use this for configuration flags, not for state control
// flags are set/unset in a manner that is not thread safe
// and may lead to missing information.
typedef enum rrddim_flags {
RRDDIM_FLAG_NONE = 0,
RRDDIM_FLAG_HIDDEN = (1 << 0), // this dimension will not be offered to callers
RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS = (1 << 1), // do not offer RESET or OVERFLOW info to callers
RRDDIM_FLAG_OBSOLETE = (1 << 2) // this is marked by the collector/module as obsolete
} RRDDIM_FLAGS;
#ifdef HAVE_C___ATOMIC
#define rrddim_flag_check(rd, flag) (__atomic_load_n(&((rd)->flags), __ATOMIC_SEQ_CST) & (flag))
#define rrddim_flag_set(rd, flag) __atomic_or_fetch(&((rd)->flags), (flag), __ATOMIC_SEQ_CST)
#define rrddim_flag_clear(rd, flag) __atomic_and_fetch(&((rd)->flags), ~(flag), __ATOMIC_SEQ_CST)
#else
#define rrddim_flag_check(rd, flag) ((rd)->flags & (flag))
#define rrddim_flag_set(rd, flag) (rd)->flags |= (flag)
#define rrddim_flag_clear(rd, flag) (rd)->flags &= ~(flag)
#endif
// ----------------------------------------------------------------------------
// RRD DIMENSION - this is a metric
struct rrddim {
// ------------------------------------------------------------------------
// binary indexing structures
avl avl; // the binary index - this has to be first member!
// ------------------------------------------------------------------------
// the dimension definition
const char *id; // the id of this dimension (for internal identification)
const char *name; // the name of this dimension (as presented to user)
// this is a pointer to the config structure
// since the config always has a higher priority
// (the user overwrites the name of the charts)
// DO NOT FREE THIS - IT IS ALLOCATED IN CONFIG
RRD_ALGORITHM algorithm; // the algorithm that is applied to add new collected values
RRD_MEMORY_MODE rrd_memory_mode; // the memory mode for this dimension
collected_number multiplier; // the multiplier of the collected values
collected_number divisor; // the divider of the collected values
uint32_t flags; // configuration flags for the dimension
// ------------------------------------------------------------------------
// members for temporary data we need for calculations
uint32_t hash; // a simple hash of the id, to speed up searching / indexing
// instead of strcmp() every item in the binary index
// we first compare the hashes
uint32_t hash_name; // a simple hash of the name
char *cache_filename; // the filename we load/save from/to this set
size_t collections_counter; // the number of times we added values to this rrdim
size_t unused[9];
collected_number collected_value_max; // the absolute maximum of the collected value
unsigned int updated:1; // 1 when the dimension has been updated since the last processing
unsigned int exposed:1; // 1 when set what have sent this dimension to the central netdata
struct timeval last_collected_time; // when was this dimension last updated
// this is actual date time we updated the last_collected_value
// THIS IS DIFFERENT FROM THE SAME MEMBER OF RRDSET
calculated_number calculated_value; // the current calculated value, after applying the algorithm - resets to zero after being used
calculated_number last_calculated_value; // the last calculated value processed
calculated_number last_stored_value; // the last value as stored in the database (after interpolation)
collected_number collected_value; // the current value, as collected - resets to 0 after being used
collected_number
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