-#include <sys/time.h>
-#include <pthread.h>
-
-#include "avl.h"
-#include "storage_number.h"
-
#ifndef NETDATA_RRD_H
#define NETDATA_RRD_H 1
// set to zero to disable this feature
extern int rrd_delete_unupdated_dimensions;
-#define RRD_ID_LENGTH_MAX 1024
+#define RRD_ID_LENGTH_MAX 400
-#define RRDSET_MAGIC "NETDATA RRD SET FILE V013"
-#define RRDDIMENSION_MAGIC "NETDATA RRD DIMENSION FILE V015"
+#define RRDSET_MAGIC "NETDATA RRD SET FILE V018"
+#define RRDDIMENSION_MAGIC "NETDATA RRD DIMENSION FILE V018"
typedef long long total_number;
#define TOTAL_NUMBER_FORMAT "%lld"
#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_LINE 0
+#define RRDSET_TYPE_AREA 1
#define RRDSET_TYPE_STACKED 2
int rrdset_type_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"
+#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"
-#define RRDDIM_ABSOLUTE 0
-#define RRDDIM_INCREMENTAL 1
-#define RRDDIM_PCENT_OVER_DIFF_TOTAL 2
-#define RRDDIM_PCENT_OVER_ROW_TOTAL 3
+#define RRDDIM_ABSOLUTE 0
+#define RRDDIM_INCREMENTAL 1
+#define RRDDIM_PCENT_OVER_DIFF_TOTAL 2
+#define RRDDIM_PCENT_OVER_ROW_TOTAL 3
extern int rrddim_algorithm_id(const char *name);
extern const char *rrddim_algorithm_name(int chart_type);
#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
+// ----------------------------------------------------------------------------
+// RRD CONTEXT
+
+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
struct rrddim {
- // ------------------------------------------------------------------------
- // binary indexing structures
+ // ------------------------------------------------------------------------
+ // binary indexing structures
+
+ avl avl; // the binary index - this has to be first member!
+
+ // ------------------------------------------------------------------------
+ // the dimension definition
+
+ char id[RRD_ID_LENGTH_MAX + 1]; // the id of this dimension (for internal identification)
- avl avl; // the binary index - this has to be first member!
+ 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 dimension definition
+ 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
- char id[RRD_ID_LENGTH_MAX + 1]; // the id of this dimension (for internal identification)
+ int mapped; // if set to non zero, this dimension is mapped to a file
- 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)
+ // ------------------------------------------------------------------------
+ // members for temporary data we need for calculations
- 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
+ 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
- int mapped; // if set to non zero, this dimension is mapped to a file
+ // FIXME
+ // we need the hash_name too!
+ // needed at rrdr_disable_not_selected_dimensions()
- // ------------------------------------------------------------------------
- // members for temporary data we need for calculations
+ uint32_t flags;
- 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
+ char cache_filename[FILENAME_MAX+1]; // the filename we load/save from/to this set
- uint32_t flags;
+ unsigned long counter; // the number of times we added values to this rrdim
- char cache_filename[FILENAME_MAX+1]; // the filename we load/save from/to this set
+ 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
- unsigned long counter; // the number of times we added values to this rrdim
+ 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
- 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
+ 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
- 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 last_stored_value; // the last value as stored in the database (after interpolation)
- calculated_number calculated_value; // the current calculated value, after applying the algorithm
- calculated_number last_calculated_value; // the last calculated value
+ 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
- collected_number collected_value; // the current value, as collected
- collected_number last_collected_value; // the last value that was collected
+ // 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 rrdset *rrdset;
- struct rrddim *next; // linking of dimensions within the same data set
+ // ------------------------------------------------------------------------
+ // 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
- unsigned long 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
+ struct rrddimvar *variables;
- // ------------------------------------------------------------------------
- // the values stored in this dimension, using our floating point numbers
+ // ------------------------------------------------------------------------
+ // 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
+ storage_number values[]; // the array of values - THIS HAS TO BE THE LAST MEMBER
};
typedef struct rrddim RRDDIM;
// RRDSET
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)
+ int 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;
+
+ char *hostname;
+
+ RRDSET *rrdset_root;
+ pthread_rwlock_t rrdset_root_rwlock;
+
+ avl_tree_lock rrdset_root_index;
+ avl_tree_lock rrdset_root_index_name;
+
+ avl_tree_lock rrdfamily_root_index;
+ avl_tree_lock variables_root_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;
+
+ RRDCALCTEMPLATE *templates;
+};
+typedef struct rrdhost RRDHOST;
+extern RRDHOST localhost;
+extern void rrdhost_init(char *hostname);
+
+#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
-extern char *rrdset_strncpy_name(char *to, const char *from, int length);
+extern char *rrdset_strncpyz_name(char *to, const char *from, size_t length);
extern void rrdset_set_name(RRDSET *st, const char *name);
extern char *rrdset_cache_dir(const char *id);
extern void rrdset_reset(RRDSET *st);
-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 RRDSET *rrdset_create(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_free_all(void);
extern void rrdset_save_all(void);
extern RRDSET *rrdset_find_bytype(const char *type, const char *id);
extern RRDSET *rrdset_find_byname(const char *name);
-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 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 unsigned long long rrdset_done(RRDSET *st);
+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
projects / netdata.git / blobdiff