-#include <sys/time.h>
-#include <pthread.h>
-
-#include "avl.h"
-#include "storage_number.h"
-
#ifndef NETDATA_RRD_H
#define NETDATA_RRD_H 1
#define UPDATE_EVERY 1
#define UPDATE_EVERY_MAX 3600
-extern int rrd_update_every;
#define RRD_DEFAULT_HISTORY_ENTRIES 3600
#define RRD_HISTORY_ENTRIES_MAX (86400*10)
-extern int rrd_default_history_entries;
-// time in seconds to delete unupdated dimensions
-// set to zero to disable this feature
-extern int rrd_delete_unupdated_dimensions;
+extern int default_localhost_rrd_update_every;
+extern int default_localhost_rrd_history_entries;
-#define RRD_ID_LENGTH_MAX 1024
+#define RRD_ID_LENGTH_MAX 200
-#define RRDSET_MAGIC "NETDATA RRD SET FILE V013"
-#define RRDDIMENSION_MAGIC "NETDATA RRD DIMENSION FILE V015"
+#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"
-#define RRDSET_TYPE_LINE 0
-#define RRDSET_TYPE_AREA 1
-#define RRDSET_TYPE_STACKED 2
-
-int rrdset_type_id(const char *name);
-const char *rrdset_type_name(int chart_type);
+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_RAM = 0,
+ RRD_MEMORY_MODE_MAP = 1,
+ RRD_MEMORY_MODE_SAVE = 2
+} RRD_MEMORY_MODE;
+
#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_RAM 0
-#define RRD_MEMORY_MODE_MAP 1
-#define RRD_MEMORY_MODE_SAVE 2
-
-extern int rrd_memory_mode;
+extern RRD_MEMORY_MODE default_localhost_rrd_memory_mode;
-extern const char *rrd_memory_mode_name(int id);
-extern int rrd_memory_mode_id(const char *name);
+extern const char *rrd_memory_mode_name(RRD_MEMORY_MODE id);
+extern RRD_MEMORY_MODE rrd_memory_mode_id(const char *name);
// ----------------------------------------------------------------------------
// algorithms types
-#define RRDDIM_ABSOLUTE_NAME "absolute"
-#define RRDDIM_INCREMENTAL_NAME "incremental"
-#define RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME "percentage-of-incremental-row"
-#define RRDDIM_PCENT_OVER_ROW_TOTAL_NAME "percentage-of-absolute-row"
+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 RRDDIM_ABSOLUTE 0
-#define RRDDIM_INCREMENTAL 1
-#define RRDDIM_PCENT_OVER_DIFF_TOTAL 2
-#define RRDDIM_PCENT_OVER_ROW_TOTAL 3
+#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 int rrddim_algorithm_id(const char *name);
-extern const char *rrddim_algorithm_name(int chart_type);
+extern RRD_ALGORITHM rrd_algorithm_id(const char *name);
+extern const char *rrd_algorithm_name(RRD_ALGORITHM algorithm);
// ----------------------------------------------------------------------------
// flags
-#define RRDDIM_FLAG_HIDDEN 0x00000001 // this dimension will not be offered to callers
-#define RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS 0x00000002 // do not offer RESET or OVERFLOW info to callers
+typedef enum rrddim_flags {
+ 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_UPDATED = 1 << 31 // the dimension has been updated since the last processing
+} RRDDIM_FLAGS;
+
+#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
+
+
+// ----------------------------------------------------------------------------
+// RRD FAMILY
+
+struct rrdfamily {
+ avl avl;
+
+ const char *family;
+ uint32_t hash_family;
+
+ size_t use_count;
+
+ avl_tree_lock variables_root_index;
+};
+typedef struct rrdfamily RRDFAMILY;
+
// ----------------------------------------------------------------------------
-// RRD DIMENSION
+// RRD DIMENSION - this is a metric
struct rrddim {
- // ------------------------------------------------------------------------
- // binary indexing structures
+ // ------------------------------------------------------------------------
+ // binary indexing structures
- avl avl; // the binary index - this has to be first member!
+ avl avl; // the binary index - this has to be first member!
- // ------------------------------------------------------------------------
- // the dimension definition
+ // ------------------------------------------------------------------------
+ // the dimension definition
- char id[RRD_ID_LENGTH_MAX + 1]; // the id of this dimension (for internal identification)
+ 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
- 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)
+ RRD_ALGORITHM algorithm; // the algorithm that is applied to add new collected values
+ RRD_MEMORY_MODE memory_mode; // the memory mode for this dimension
- int algorithm; // the algorithm that is applied to add new collected values
- long multiplier; // the multiplier of the collected values
- long divisor; // the divider of the collected values
+ collected_number multiplier; // the multiplier of the collected values
+ collected_number divisor; // the divider of the collected values
- int mapped; // if set to non zero, this dimension is mapped to a file
+ uint32_t flags; // options and status options for the dimension
- // ------------------------------------------------------------------------
- // members for temporary data we need for calculations
+ // ------------------------------------------------------------------------
+ // 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; // 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 flags;
+ uint32_t hash_name; // a simple hash of the name
- char cache_filename[FILENAME_MAX+1]; // the filename we load/save from/to this set
+ char *cache_filename; // the filename we load/save from/to this set
- unsigned long counter; // the number of times we added values to this rrdim
+ size_t counter; // the number of times we added values to this rrdim
- int updated; // set to 0 after each calculation, to 1 after each collected value
- // we use this to detect that a dimension is not updated
+ 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
- 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 calculated_value; // the current calculated value, after applying the algorithm
- calculated_number last_calculated_value; // the last calculated value
+ calculated_number last_stored_value; // the last value as stored in the database (after interpolation)
- collected_number collected_value; // the current value, as collected
- collected_number last_collected_value; // the last value that was collected
+ collected_number collected_value; // the current value, as collected - resets to 0 after being used
+ collected_number last_collected_value; // the last value that was collected, after being processed
- // the *_volume members are used to calculate the accuracy of the rounding done by the
- // storage number - they are printed to debug.log when debug is enabled for a set.
- calculated_number collected_volume; // the sum of all collected values so far
- calculated_number stored_volume; // the sum of all stored values so far
+ // the *_volume members are used to calculate the accuracy of the rounding done by the
+ // storage number - they are printed to debug.log when debug is enabled for a set.
+ calculated_number collected_volume; // the sum of all collected values so far
+ calculated_number stored_volume; // the sum of all stored values so far
- struct rrddim *next; // linking of dimensions within the same data set
+ struct rrddim *next; // linking of dimensions within the same data set
+ struct rrdset *rrdset;
- // ------------------------------------------------------------------------
- // members for checking the data when loading from disk
+ // ------------------------------------------------------------------------
+ // members for checking the data when loading from disk
- long entries; // how many entries this dimension has in ram
- // this is the same to the entries of the data set
- // we set it here, to check the data when we load it from disk.
+ long entries; // how many entries this dimension has in ram
+ // this is the same to the entries of the data set
+ // we set it here, to check the data when we load it from disk.
- int update_every; // every how many seconds is this updated
+ int update_every; // every how many seconds is this updated
- unsigned long memsize; // the memory allocated for this dimension
+ size_t memsize; // the memory allocated for this dimension
- char magic[sizeof(RRDDIMENSION_MAGIC) + 1]; // a string to be saved, used to identify our data file
+ char magic[sizeof(RRDDIMENSION_MAGIC) + 1]; // a string to be saved, used to identify our data file
- // ------------------------------------------------------------------------
- // the values stored in this dimension, using our floating point numbers
+ struct rrddimvar *variables;
- storage_number values[]; // the array of values - THIS HAS TO BE THE LAST MEMBER
+ // ------------------------------------------------------------------------
+ // the values stored in this dimension, using our floating point numbers
+
+ storage_number values[]; // the array of values - THIS HAS TO BE THE LAST MEMBER
};
typedef struct rrddim RRDDIM;
// ----------------------------------------------------------------------------
-// RRDSET
+// RRDSET - this is a chart
struct rrdset {
- // ------------------------------------------------------------------------
- // binary indexing structures
+ // ------------------------------------------------------------------------
+ // binary indexing structures
+
+ avl avl; // the index, with key the id - this has to be first!
+ avl avlname; // the index, with key the name
+
+ // ------------------------------------------------------------------------
+ // the set configuration
+
+ char id[RRD_ID_LENGTH_MAX + 1]; // id of the data set
- avl avl; // the index, with key the id - this has to be first!
- avl avlname; // the index, with key the name
+ 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)
- // ------------------------------------------------------------------------
- // the set configuration
+ char *type; // the type of graph RRD_TYPE_* (a category, for determining graphing options)
+ char *family; // grouping sets under the same family
+ char *title; // title shown to user
+ char *units; // units of measurement
- char id[RRD_ID_LENGTH_MAX + 1]; // id of the data set
+ char *context; // the template of this data set
+ uint32_t hash_context;
- 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)
+ RRDSET_TYPE chart_type;
- char *type; // the type of graph RRD_TYPE_* (a category, for determining graphing options)
- char *family; // the family of this data set (for grouping them together)
- char *title; // title shown to user
- char *units; // units of measurement
+ int update_every; // every how many seconds is this updated?
- int chart_type;
+ long entries; // total number of entries in the data set
- int update_every; // every how many seconds is this updated?
+ long current_entry; // the entry that is currently being updated
+ // it goes around in a round-robin fashion
- long entries; // total number of entries in the data set
+ int enabled;
- long current_entry; // the entry that is currently being updated
- // it goes around in a round-robin fashion
+ int gap_when_lost_iterations_above; // after how many lost iterations a gap should be stored
+ // netdata will interpolate values for gaps lower than this
- int enabled;
+ long priority;
- int gap_when_lost_iterations_above; // after how many lost iterations a gap should be stored
- // netdata will interpolate values for gaps lower than this
+ int isdetail; // if set, the data set should be considered as a detail of another
+ // (the master data set should be the one that has the same family and is not detail)
- long priority;
+ // ------------------------------------------------------------------------
+ // members for temporary data we need for calculations
- int isdetail; // if set, the data set should be considered as a detail of another
- // (the master data set should be the one that has the same family and is not detail)
+ int mapped; // if set to 1, this is memory mapped
- // ------------------------------------------------------------------------
- // members for temporary data we need for calculations
+ int debug;
- int mapped; // if set to 1, this is memory mapped
+ char *cache_dir; // the directory to store dimensions
+ char cache_filename[FILENAME_MAX+1]; // the filename to store this set
- int debug;
+ pthread_rwlock_t rwlock;
- char *cache_dir; // the directory to store dimensions
- char cache_filename[FILENAME_MAX+1]; // the filename to store this set
+ unsigned long counter; // the number of times we added values to this rrd
+ unsigned long counter_done; // the number of times we added values to this rrd
- pthread_rwlock_t rwlock;
+ uint32_t hash; // a simple hash on the id, to speed up searching
+ // we first compare hashes, and only if the hashes are equal we do string comparisons
- unsigned long counter; // the number of times we added values to this rrd
- unsigned long counter_done; // the number of times we added values to this rrd
+ uint32_t hash_name; // a simple hash on the name
- uint32_t hash; // a simple hash on the id, to speed up searching
- // we first compare hashes, and only if the hashes are equal we do string comparisons
+ usec_t usec_since_last_update; // the time in microseconds since the last collection of data
- uint32_t hash_name; // a simple hash on the name
+ struct timeval last_updated; // when this data set was last updated (updated every time the rrd_stats_done() function)
+ struct timeval last_collected_time; // when did this data set last collected values
- unsigned long long usec_since_last_update; // the time in microseconds since the last collection of data
+ total_number collected_total; // used internally to calculate percentages
+ total_number last_collected_total; // used internally to calculate percentages
- struct timeval last_updated; // when this data set was last updated (updated every time the rrd_stats_done() function)
- struct timeval last_collected_time; // when did this data set last collected values
+ RRDFAMILY *rrdfamily;
+ struct rrdhost *rrdhost;
- total_number collected_total; // used internally to calculate percentages
- total_number last_collected_total; // used internally to calculate percentages
+ struct rrdset *next; // linking of rrdsets
- struct rrdset *next; // linking of rrdsets
+ // ------------------------------------------------------------------------
+ // local variables
- // ------------------------------------------------------------------------
- // members for checking the data when loading from disk
+ calculated_number green;
+ calculated_number red;
- unsigned long memsize; // how much mem we have allocated for this (without dimensions)
+ avl_tree_lock variables_root_index;
+ RRDSETVAR *variables;
+ RRDCALC *alarms;
- char magic[sizeof(RRDSET_MAGIC) + 1]; // our magic
+ // ------------------------------------------------------------------------
+ // members for checking the data when loading from disk
- // ------------------------------------------------------------------------
- // the dimensions
+ unsigned long memsize; // how much mem we have allocated for this (without dimensions)
+
+ char magic[sizeof(RRDSET_MAGIC) + 1]; // our magic
+
+ // ------------------------------------------------------------------------
+ // the dimensions
+
+ avl_tree_lock dimensions_index; // the root of the dimensions index
+ RRDDIM *dimensions; // the actual data for every dimension
- avl_tree dimensions_index; // the root of the dimensions index
- RRDDIM *dimensions; // the actual data for every dimension
};
typedef struct rrdset RRDSET;
-extern RRDSET *rrdset_root;
-extern pthread_rwlock_t rrdset_root_rwlock;
+// ----------------------------------------------------------------------------
+// RRD HOST
+
+struct rrdhost {
+ avl avl; // the index of hosts
+
+ char *hostname; // the hostname of this host
+ uint32_t hash_hostname; // the hostname hash
+
+ char machine_guid[GUID_LEN + 1]; // the unique ID of this host
+ uint32_t hash_machine_guid; // the hash of the unique ID
+
+ int rrd_update_every; // the update frequency of the host
+ int rrd_history_entries; // the number of history entries for the host's charts
+
+ int health_enabled; // 1 when this host has health enabled
+ RRD_MEMORY_MODE rrd_memory_mode; // the memory more for the charts of this host
+
+ RRDSET *rrdset_root; // the host charts
+ pthread_rwlock_t rrdset_root_rwlock; // lock for the host charts
+
+ avl_tree_lock rrdset_root_index; // the host's charts index (by id)
+ avl_tree_lock rrdset_root_index_name; // the host's charts index (by name)
+
+ avl_tree_lock rrdfamily_root_index; // the host's chart families index
+ avl_tree_lock variables_root_index; // the host's chart variables index
+
+ // all RRDCALCs are primarily allocated and linked here
+ // RRDCALCs may be linked to charts at any point
+ // (charts may or may not exist when these are loaded)
+ RRDCALC *alarms;
+
+ ALARM_LOG health_log; // alarms historical events (event log)
+
+ // templates of alarms
+ // these are used to create alarms when charts
+ // are created or renamed, that match them
+ RRDCALCTEMPLATE *templates;
+
+ // health / alarm settings
+ char *health_default_exec;
+ char *health_default_recipient;
+ char *health_log_filename;
+ size_t health_log_entries_written;
+ FILE *health_log_fp;
+
+ struct rrdhost *next;
+};
+typedef struct rrdhost RRDHOST;
+
+extern RRDHOST *localhost;
+
+extern void rrd_init(char *hostname);
+
+extern RRDHOST *rrdhost_find(const char *guid, uint32_t hash);
+extern RRDHOST *rrdhost_find_or_create(const char *hostname, const char *guid);
+
+#ifdef NETDATA_INTERNAL_CHECKS
+#define rrdhost_check_wrlock(host) rrdhost_check_wrlock_int(host, __FILE__, __FUNCTION__, __LINE__)
+#define rrdhost_check_rdlock(host) rrdhost_check_rdlock_int(host, __FILE__, __FUNCTION__, __LINE__)
+#else
+#define rrdhost_check_rdlock(host) (void)0
+#define rrdhost_check_wrlock(host) (void)0
+#endif
+
+extern void rrdhost_check_wrlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line);
+extern void rrdhost_check_rdlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line);
+
+extern void rrdhost_rwlock(RRDHOST *host);
+extern void rrdhost_rdlock(RRDHOST *host);
+extern void rrdhost_unlock(RRDHOST *host);
// ----------------------------------------------------------------------------
-// RRD SET functions
+// RRDSET functions
-extern char *rrdset_strncpy_name(char *to, const char *from, int length);
extern void rrdset_set_name(RRDSET *st, const char *name);
-extern char *rrdset_cache_dir(const char *id);
+extern RRDSET *rrdset_create(RRDHOST *host
+ , const char *type
+ , const char *id
+ , const char *name
+ , const char *family
+ , const char *context
+ , const char *title
+ , const char *units
+ , long priority
+ , int update_every
+ , int chart_type);
-extern void rrdset_reset(RRDSET *st);
+#define rrdset_create_localhost(type, id, name, family, context, title, units, priority, update_every, chart_type) rrdset_create(localhost, type, id, name, family, context, title, units, priority, update_every, chart_type)
+
+extern void rrdhost_free_all(void);
+extern void rrdhost_save_all(void);
-extern RRDSET *rrdset_create(const char *type, const char *id, const char *name, const char *family, const char *title, const char *units, long priority, int update_every, int chart_type);
+extern void rrdhost_free(RRDHOST *host);
+extern void rrdhost_save(RRDHOST *host);
-extern void rrdset_free_all(void);
-extern void rrdset_save_all(void);
+extern RRDSET *rrdset_find(RRDHOST *host, const char *id);
+#define rrdset_find_localhost(id) rrdset_find(localhost, id)
-extern RRDSET *rrdset_find(const char *id);
-extern RRDSET *rrdset_find_bytype(const char *type, const char *id);
-extern RRDSET *rrdset_find_byname(const char *name);
+extern RRDSET *rrdset_find_bytype(RRDHOST *host, const char *type, const char *id);
+#define rrdset_find_bytype_localhost(type, id) rrdset_find_bytype(localhost, type, id)
-extern void rrdset_next_usec(RRDSET *st, unsigned long long microseconds);
-extern void rrdset_next(RRDSET *st);
-extern void rrdset_next_plugins(RRDSET *st);
+extern RRDSET *rrdset_find_byname(RRDHOST *host, const char *name);
+#define rrdset_find_byname_localhost(name) rrdset_find_byname(localhost, name)
-extern unsigned long long rrdset_done(RRDSET *st);
+extern void rrdset_next_usec_unfiltered(RRDSET *st, usec_t microseconds);
+extern void rrdset_next_usec(RRDSET *st, usec_t microseconds);
+#define rrdset_next(st) rrdset_next_usec(st, 0ULL)
+
+extern usec_t rrdset_done(RRDSET *st);
// get the total duration in seconds of the round robin database
#define rrdset_duration(st) ((time_t)( (((st)->counter >= ((unsigned long)(st)->entries))?(unsigned long)(st)->entries:(st)->counter) * (st)->update_every ))
#define rrdset_first_entry_t(st) ((time_t)(rrdset_last_entry_t(st) - rrdset_duration(st)))
// get the last slot updated in the round robin database
-#define rrdset_last_slot(st) (((st)->current_entry == 0) ? (st)->entries - 1 : (st)->current_entry - 1)
+#define rrdset_last_slot(st) ((unsigned long)(((st)->current_entry == 0) ? (st)->entries - 1 : (st)->current_entry - 1))
// get the first / oldest slot updated in the round robin database
-#define rrdset_first_slot(st) ((st)->current_entry)
+#define rrdset_first_slot(st) ((unsigned long)( (((st)->counter >= ((unsigned long)(st)->entries)) ? (unsigned long)( ((unsigned long)(st)->current_entry > 0) ? ((unsigned long)(st)->current_entry) : ((unsigned long)(st)->entries) ) - 1 : 0) ))
// get the slot of the round robin database, for the given timestamp (t)
// it always returns a valid slot, although may not be for the time requested if the time is outside the round robin database
#define rrdset_time2slot(st, t) ( \
- ( (t) >= rrdset_last_entry_t(st)) ? ( rrdset_last_slot(st) ) : \
- ( ((t) <= rrdset_first_entry_t(st)) ? rrdset_first_slot(st) : \
- ( (rrdset_last_slot(st) >= ((long)(rrdset_last_entry_t(st) - (t)) / (long)((st)->update_every)) ) ? \
- (rrdset_last_slot(st) - ((long)(rrdset_last_entry_t(st) - (t)) / (long)((st)->update_every)) ) : \
- (rrdset_last_slot(st) - ((long)(rrdset_last_entry_t(st) - (t)) / (long)((st)->update_every)) + (st)->entries ) \
- )))
+ ( (time_t)(t) >= rrdset_last_entry_t(st)) ? ( rrdset_last_slot(st) ) : \
+ ( ((time_t)(t) <= rrdset_first_entry_t(st)) ? rrdset_first_slot(st) : \
+ ( (rrdset_last_slot(st) >= (unsigned long)((rrdset_last_entry_t(st) - (time_t)(t)) / (unsigned long)((st)->update_every)) ) ? \
+ (rrdset_last_slot(st) - (unsigned long)((rrdset_last_entry_t(st) - (time_t)(t)) / (unsigned long)((st)->update_every)) ) : \
+ (rrdset_last_slot(st) - (unsigned long)((rrdset_last_entry_t(st) - (time_t)(t)) / (unsigned long)((st)->update_every)) + (unsigned long)(st)->entries ) \
+ )))
// get the timestamp of a specific slot in the round robin database
#define rrdset_slot2time(st, slot) ( rrdset_last_entry_t(st) - \
- ((st)->update_every * ( \
- ( (slot) > rrdset_last_slot(st)) ? \
- ( (rrdset_last_slot(st) - slot + (st)->entries) ) : \
- ( (rrdset_last_slot(st) - slot) )) \
- ))
+ ((unsigned long)(st)->update_every * ( \
+ ( (unsigned long)(slot) > rrdset_last_slot(st)) ? \
+ ( (rrdset_last_slot(st) - (unsigned long)(slot) + (unsigned long)(st)->entries) ) : \
+ ( (rrdset_last_slot(st) - (unsigned long)(slot)) )) \
+ ))
// ----------------------------------------------------------------------------
// RRD DIMENSION functions
-extern RRDDIM *rrddim_add(RRDSET *st, const char *id, const char *name, long multiplier, long divisor, int algorithm);
+extern RRDDIM *rrddim_add(RRDSET *st, const char *id, const char *name, collected_number multiplier, collected_number divisor, RRD_ALGORITHM algorithm);
extern void rrddim_set_name(RRDSET *st, RRDDIM *rd, const char *name);
-extern void rrddim_free(RRDSET *st, RRDDIM *rd);
-
extern RRDDIM *rrddim_find(RRDSET *st, const char *id);
extern int rrddim_hide(RRDSET *st, const char *id);
extern collected_number rrddim_set_by_pointer(RRDSET *st, RRDDIM *rd, collected_number value);
extern collected_number rrddim_set(RRDSET *st, const char *id, collected_number value);
+
+// ----------------------------------------------------------------------------
+// RRD internal functions
+
+#ifdef NETDATA_RRD_INTERNALS
+
+extern avl_tree_lock rrdhost_root_index;
+
+extern char *rrdset_strncpyz_name(char *to, const char *from, size_t length);
+extern char *rrdset_cache_dir(RRDHOST *host, const char *id);
+
+extern void rrdset_reset(RRDSET *st);
+
+extern void rrddim_free(RRDSET *st, RRDDIM *rd);
+
+extern int rrddim_compare(void* a, void* b);
+extern int rrdset_compare(void* a, void* b);
+extern int rrdset_compare_name(void* a, void* b);
+extern int rrdfamily_compare(void *a, void *b);
+
+extern RRDFAMILY *rrdfamily_create(RRDHOST *host, const char *id);
+extern void rrdfamily_free(RRDHOST *host, RRDFAMILY *rc);
+
+#define rrdset_index_add(host, st) (RRDSET *)avl_insert_lock(&((host)->rrdset_root_index), (avl *)(st))
+#define rrdset_index_del(host, st) (RRDSET *)avl_remove_lock(&((host)->rrdset_root_index), (avl *)(st))
+extern RRDSET *rrdset_index_del_name(RRDHOST *host, RRDSET *st);
+
+#endif /* NETDATA_RRD_INTERNALS */
+
+
#endif /* NETDATA_RRD_H */