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netdata/database/rrddim.c

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// SPDX-License-Identifier: GPL-3.0-or-later
#define NETDATA_RRD_INTERNALS
#include "rrd.h"
// ----------------------------------------------------------------------------
// RRDDIM index
int rrddim_compare(void* a, void* b) {
if(((RRDDIM *)a)->hash < ((RRDDIM *)b)->hash) return -1;
else if(((RRDDIM *)a)->hash > ((RRDDIM *)b)->hash) return 1;
else return strcmp(((RRDDIM *)a)->id, ((RRDDIM *)b)->id);
}
#define rrddim_index_add(st, rd) (RRDDIM *)avl_insert_lock(&((st)->dimensions_index), (avl *)(rd))
#define rrddim_index_del(st,rd ) (RRDDIM *)avl_remove_lock(&((st)->dimensions_index), (avl *)(rd))
static inline RRDDIM *rrddim_index_find(RRDSET *st, const char *id, uint32_t hash) {
RRDDIM tmp = {
.id = id,
.hash = (hash)?hash:simple_hash(id)
};
return (RRDDIM *)avl_search_lock(&(st->dimensions_index), (avl *) &tmp);
}
// ----------------------------------------------------------------------------
// RRDDIM - find a dimension
inline RRDDIM *rrddim_find(RRDSET *st, const char *id) {
debug(D_RRD_CALLS, "rrddim_find() for chart %s, dimension %s", st->name, id);
return rrddim_index_find(st, id, 0);
}
// ----------------------------------------------------------------------------
// RRDDIM rename a dimension
inline int rrddim_set_name(RRDSET *st, RRDDIM *rd, const char *name) {
if(unlikely(!name || !*name || !strcmp(rd->name, name)))
return 0;
debug(D_RRD_CALLS, "rrddim_set_name() from %s.%s to %s.%s", st->name, rd->name, st->name, name);
char varname[CONFIG_MAX_NAME + 1];
snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
rd->name = config_set_default(st->config_section, varname, name);
rd->hash_name = simple_hash(rd->name);
rrddimvar_rename_all(rd);
rd->exposed = 0;
rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);
return 1;
}
inline int rrddim_set_algorithm(RRDSET *st, RRDDIM *rd, RRD_ALGORITHM algorithm) {
if(unlikely(rd->algorithm == algorithm))
return 0;
debug(D_RRD_CALLS, "Updating algorithm of dimension '%s/%s' from %s to %s", st->id, rd->name, rrd_algorithm_name(rd->algorithm), rrd_algorithm_name(algorithm));
rd->algorithm = algorithm;
rd->exposed = 0;
rrdset_flag_set(st, RRDSET_FLAG_HOMOGENEOUS_CHECK);
rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);
return 1;
}
inline int rrddim_set_multiplier(RRDSET *st, RRDDIM *rd, collected_number multiplier) {
if(unlikely(rd->multiplier == multiplier))
return 0;
debug(D_RRD_CALLS, "Updating multiplier of dimension '%s/%s' from " COLLECTED_NUMBER_FORMAT " to " COLLECTED_NUMBER_FORMAT, st->id, rd->name, rd->multiplier, multiplier);
rd->multiplier = multiplier;
rd->exposed = 0;
rrdset_flag_set(st, RRDSET_FLAG_HOMOGENEOUS_CHECK);
rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);
return 1;
}
inline int rrddim_set_divisor(RRDSET *st, RRDDIM *rd, collected_number divisor) {
if(unlikely(rd->divisor == divisor))
return 0;
debug(D_RRD_CALLS, "Updating divisor of dimension '%s/%s' from " COLLECTED_NUMBER_FORMAT " to " COLLECTED_NUMBER_FORMAT, st->id, rd->name, rd->divisor, divisor);
rd->divisor = divisor;
rd->exposed = 0;
rrdset_flag_set(st, RRDSET_FLAG_HOMOGENEOUS_CHECK);
rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);
return 1;
}
// ----------------------------------------------------------------------------
// RRDDIM legacy data collection functions
static void rrddim_collect_init(RRDDIM *rd) {
rd->values[rd->rrdset->current_entry] = SN_EMPTY_SLOT; // pack_storage_number(0, SN_NOT_EXISTS);
}
static void rrddim_collect_store_metric(RRDDIM *rd, usec_t point_in_time, storage_number number) {
(void)point_in_time;
rd->values[rd->rrdset->current_entry] = number;
}
static int rrddim_collect_finalize(RRDDIM *rd) {
(void)rd;
return 0;
}
// ----------------------------------------------------------------------------
// RRDDIM legacy database query functions
static void rrddim_query_init(RRDDIM *rd, struct rrddim_query_handle *handle, time_t start_time, time_t end_time) {
handle->rd = rd;
handle->start_time = start_time;
handle->end_time = end_time;
handle->slotted.slot = rrdset_time2slot(rd->rrdset, start_time);
handle->slotted.last_slot = rrdset_time2slot(rd->rrdset, end_time);
handle->slotted.finished = 0;
}
static storage_number rrddim_query_next_metric(struct rrddim_query_handle *handle, time_t *current_time) {
RRDDIM *rd = handle->rd;
long entries = rd->rrdset->entries;
long slot = handle->slotted.slot;
(void)current_time;
if (unlikely(handle->slotted.slot == handle->slotted.last_slot))
handle->slotted.finished = 1;
storage_number n = rd->values[slot++];
if(unlikely(slot >= entries)) slot = 0;
handle->slotted.slot = slot;
return n;
}
static int rrddim_query_is_finished(struct rrddim_query_handle *handle) {
return handle->slotted.finished;
}
static void rrddim_query_finalize(struct rrddim_query_handle *handle) {
(void)handle;
return;
}
static time_t rrddim_query_latest_time(RRDDIM *rd) {
return rrdset_last_entry_t(rd->rrdset);
}
static time_t rrddim_query_oldest_time(RRDDIM *rd) {
return rrdset_first_entry_t(rd->rrdset);
}
// ----------------------------------------------------------------------------
// RRDDIM create a dimension
void rrdcalc_link_to_rrddim(RRDDIM *rd, RRDSET *st, RRDHOST *host) {
RRDCALC *rrdc;
for (rrdc = host->alarms_with_foreach; rrdc ; rrdc = rrdc->next) {
if (simple_pattern_matches(rrdc->spdim, rd->id) || simple_pattern_matches(rrdc->spdim, rd->name)) {
if (rrdc->hash_chart == st->hash_name || !strcmp(rrdc->chart, st->name) || !strcmp(rrdc->chart, st->id)) {
char *usename = alarm_name_with_dim(rrdc->name, strlen(rrdc->name), rd->name, strlen(rd->name));
if (usename) {
if(rrdcalc_exists(host, st->name, usename, 0, 0)){
freez(usename);
continue;
}
RRDCALC *child = rrdcalc_create_from_rrdcalc(rrdc, host, usename, rd->name);
if (child) {
rrdcalc_add_to_host(host, child);
RRDCALC *rdcmp = (RRDCALC *) avl_insert_lock(&(host)->alarms_idx_health_log,(avl *)child);
if (rdcmp != child) {
error("Cannot insert the alarm index ID %s",child->name);
}
} else {
error("Cannot allocate a new alarm.");
rrdc->foreachcounter--;
}
}
}
}
}
#ifdef ENABLE_ACLK
if (netdata_cloud_setting)
aclk_update_chart(st->rrdhost, st->id, ACLK_CMD_CHART);
#endif
}
RRDDIM *rrddim_add_custom(RRDSET *st, const char *id, const char *name, collected_number multiplier,
collected_number divisor, RRD_ALGORITHM algorithm, RRD_MEMORY_MODE memory_mode,
int is_archived, uuid_t *dim_uuid) {
RRDHOST *host = st->rrdhost;
rrdset_wrlock(st);
rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK);
rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);
RRDDIM *rd = rrddim_find(st, id);
if(unlikely(rd)) {
debug(D_RRD_CALLS, "Cannot create rrd dimension '%s/%s', it already exists.", st->id, name?name:"<NONAME>");
int rc = rrddim_set_name(st, rd, name);
rc += rrddim_set_algorithm(st, rd, algorithm);
rc += rrddim_set_multiplier(st, rd, multiplier);
rc += rrddim_set_divisor(st, rd, divisor);
if (!is_archived && rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) {
rd->state->collect_ops.init(rd);
rrddim_flag_clear(rd, RRDDIM_FLAG_ARCHIVED);
}
// DBENGINE available and activated?
#ifdef ENABLE_DBENGINE
if (likely(!is_archived && rd->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) && unlikely(rc)) {
debug(D_METADATALOG, "DIMENSION [%s] metadata updated", rd->id);
metalog_commit_update_dimension(rd);
}
#endif
rrdset_unlock(st);
return rd;
}
char filename[FILENAME_MAX + 1];
char fullfilename[FILENAME_MAX + 1];
char varname[CONFIG_MAX_NAME + 1];
unsigned long size = sizeof(RRDDIM) + (st->entries * sizeof(storage_number));
debug(D_RRD_CALLS, "Adding dimension '%s/%s'.", st->id, id);
rrdset_strncpyz_name(filename, id, FILENAME_MAX);
snprintfz(fullfilename, FILENAME_MAX, "%s/%s.db", st->cache_dir, filename);
if(memory_mode == RRD_MEMORY_MODE_SAVE || memory_mode == RRD_MEMORY_MODE_MAP ||
memory_mode == RRD_MEMORY_MODE_RAM) {
rd = (RRDDIM *)mymmap(
(memory_mode == RRD_MEMORY_MODE_RAM) ? NULL : fullfilename
, size
, ((memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE)
, 1
);
if(likely(rd)) {
// we have a file mapped for rd
memset(&rd->avl, 0, sizeof(avl));
rd->id = NULL;
rd->name = NULL;
rd->cache_filename = NULL;
rd->variables = NULL;
rd->next = NULL;
rd->rrdset = NULL;
rd->exposed = 0;
struct timeval now;
now_realtime_timeval(&now);
if(memory_mode == RRD_MEMORY_MODE_RAM) {
memset(rd, 0, size);
}
else {
int reset = 0;
if(strcmp(rd->magic, RRDDIMENSION_MAGIC) != 0) {
info("Initializing file %s.", fullfilename);
memset(rd, 0, size);
reset = 1;
}
else if(rd->memsize != size) {
error("File %s does not have the desired size, expected %lu but found %lu. Clearing it.", fullfilename, size, rd->memsize);
memset(rd, 0, size);
reset = 1;
}
else if(rd->update_every != st->update_every) {
error("File %s does not have the same update frequency, expected %d but found %d. Clearing it.", fullfilename, st->update_every, rd->update_every);
memset(rd, 0, size);
reset = 1;
}
else if(dt_usec(&now, &rd->last_collected_time) > (rd->entries * rd->update_every * USEC_PER_SEC)) {
info("File %s is too old (last collected %llu seconds ago, but the database is %ld seconds). Clearing it.", fullfilename, dt_usec(&now, &rd->last_collected_time) / USEC_PER_SEC, rd->entries * rd->update_every);
memset(rd, 0, size);
reset = 1;
}
if(!reset) {
if(rd->algorithm != algorithm) {
info("File %s does not have the expected algorithm (expected %u '%s', found %u '%s'). Previous values may be wrong.",
fullfilename, algorithm, rrd_algorithm_name(algorithm), rd->algorithm, rrd_algorithm_name(rd->algorithm));
}
if(rd->multiplier != multiplier) {
info("File %s does not have the expected multiplier (expected " COLLECTED_NUMBER_FORMAT ", found " COLLECTED_NUMBER_FORMAT "). Previous values may be wrong.", fullfilename, multiplier, rd->multiplier);
}
if(rd->divisor != divisor) {
info("File %s does not have the expected divisor (expected " COLLECTED_NUMBER_FORMAT ", found " COLLECTED_NUMBER_FORMAT "). Previous values may be wrong.", fullfilename, divisor, rd->divisor);
}
}
}
// make sure we have the right memory mode
// even if we cleared the memory
rd->rrd_memory_mode = memory_mode;
}
}
if(unlikely(!rd)) {
// if we didn't manage to get a mmap'd dimension, just create one
rd = callocz(1, size);
if (memory_mode == RRD_MEMORY_MODE_DBENGINE)
rd->rrd_memory_mode = RRD_MEMORY_MODE_DBENGINE;
else
rd->rrd_memory_mode = (memory_mode == RRD_MEMORY_MODE_NONE) ? RRD_MEMORY_MODE_NONE : RRD_MEMORY_MODE_ALLOC;
}
rd->memsize = size;
strcpy(rd->magic, RRDDIMENSION_MAGIC);
rd->id = strdupz(id);
rd->hash = simple_hash(rd->id);
rd->cache_filename = strdupz(fullfilename);
snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
rd->name = config_get(st->config_section, varname, (name && *name)?name:rd->id);
rd->hash_name = simple_hash(rd->name);
snprintfz(varname, CONFIG_MAX_NAME, "dim %s algorithm", rd->id);
rd->algorithm = rrd_algorithm_id(config_get(st->config_section, varname, rrd_algorithm_name(algorithm)));
snprintfz(varname, CONFIG_MAX_NAME, "dim %s multiplier", rd->id);
rd->multiplier = config_get_number(st->config_section, varname, multiplier);
snprintfz(varname, CONFIG_MAX_NAME, "dim %s divisor", rd->id);
rd->divisor = config_get_number(st->config_section, varname, divisor);
if(!rd->divisor) rd->divisor = 1;
rd->entries = st->entries;
rd->update_every = st->update_every;
if(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST))
rd->collections_counter = 1;
else
rd->collections_counter = 0;
rd->updated = 0;
rd->flags = 0x00000000;
rd->calculated_value = 0;
rd->last_calculated_value = 0;
rd->collected_value = 0;
rd->last_collected_value = 0;
rd->collected_value_max = 0;
rd->collected_volume = 0;
rd->stored_volume = 0;
rd->last_stored_value = 0;
rd->last_collected_time.tv_sec = 0;
rd->last_collected_time.tv_usec = 0;
rd->rrdset = st;
rd->state = mallocz(sizeof(*rd->state));
if(memory_mode == RRD_MEMORY_MODE_DBENGINE) {
#ifdef ENABLE_DBENGINE
rrdeng_metric_init(rd, dim_uuid);
rd->state->collect_ops.init = rrdeng_store_metric_init;
rd->state->collect_ops.store_metric = rrdeng_store_metric_next;
rd->state->collect_ops.finalize = rrdeng_store_metric_finalize;
rd->state->query_ops.init = rrdeng_load_metric_init;
rd->state->query_ops.next_metric = rrdeng_load_metric_next;
rd->state->query_ops.is_finished = rrdeng_load_metric_is_finished;
rd->state->query_ops.finalize = rrdeng_load_metric_finalize;
rd->state->query_ops.latest_time = rrdeng_metric_latest_time;
rd->state->query_ops.oldest_time = rrdeng_metric_oldest_time;
#endif
} else {
rd->state->collect_ops.init = rrddim_collect_init;
rd->state->collect_ops.store_metric = rrddim_collect_store_metric;
rd->state->collect_ops.finalize = rrddim_collect_finalize;
rd->state->query_ops.init = rrddim_query_init;
rd->state->query_ops.next_metric = rrddim_query_next_metric;
rd->state->query_ops.is_finished = rrddim_query_is_finished;
rd->state->query_ops.finalize = rrddim_query_finalize;
rd->state->query_ops.latest_time = rrddim_query_latest_time;
rd->state->query_ops.oldest_time = rrddim_query_oldest_time;
}
if (is_archived)
rrddim_flag_set(rd, RRDDIM_FLAG_ARCHIVED);
else
rd->state->collect_ops.init(rd); // only initialize if a collector created this dimension
// append this dimension
if(!st->dimensions)
st->dimensions = rd;
else {
RRDDIM *td = st->dimensions;
if(td->algorithm != rd->algorithm || abs(td->multiplier) != abs(rd->multiplier) || abs(td->divisor) != abs(rd->divisor)) {
if(!rrdset_flag_check(st, RRDSET_FLAG_HETEROGENEOUS)) {
#ifdef NETDATA_INTERNAL_CHECKS
info("Dimension '%s' added on chart '%s' of host '%s' is not homogeneous to other dimensions already present (algorithm is '%s' vs '%s', multiplier is " COLLECTED_NUMBER_FORMAT " vs " COLLECTED_NUMBER_FORMAT ", divisor is " COLLECTED_NUMBER_FORMAT " vs " COLLECTED_NUMBER_FORMAT ").",
rd->name,
st->name,
host->hostname,
rrd_algorithm_name(rd->algorithm), rrd_algorithm_name(td->algorithm),
rd->multiplier, td->multiplier,
rd->divisor, td->divisor
);
#endif
rrdset_flag_set(st, RRDSET_FLAG_HETEROGENEOUS);
}
}
for(; td->next; td = td->next) ;
td->next = rd;
}
if(host->health_enabled) {
rrddimvar_create(rd, RRDVAR_TYPE_CALCULATED, NULL, NULL, &rd->last_stored_value, RRDVAR_OPTION_DEFAULT);
rrddimvar_create(rd, RRDVAR_TYPE_COLLECTED, NULL, "_raw", &rd->last_collected_value, RRDVAR_OPTION_DEFAULT);
rrddimvar_create(rd, RRDVAR_TYPE_TIME_T, NULL, "_last_collected_t", &rd->last_collected_time.tv_sec, RRDVAR_OPTION_DEFAULT);
}
if(unlikely(rrddim_index_add(st, rd) != rd))
error("RRDDIM: INTERNAL ERROR: attempt to index duplicate dimension '%s' on chart '%s'", rd->id, st->id);
if (host->alarms_with_foreach || host->alarms_template_with_foreach) {
int count = 0;
int hostlocked;
for (count = 0 ; count < 5 ; count++) {
hostlocked = netdata_rwlock_trywrlock(&host->rrdhost_rwlock);
if (!hostlocked) {
rrdcalc_link_to_rrddim(rd, st, host);
rrdhost_unlock(host);
break;
} else if (hostlocked != EBUSY) {
error("Cannot lock host to create an alarm for the dimension.");
}
usleep(200000);
}
if (count == 5) {
error("Failed to create an alarm for dimension %s of chart %s 5 times. Skipping alarm."
, rd->name, st->name);
}
}
rrdset_unlock(st);
#ifdef ENABLE_ACLK
if (netdata_cloud_setting)
aclk_update_chart(host, st->id, ACLK_CMD_CHART);
#endif
#ifdef ENABLE_DBENGINE
rrd_atomic_fetch_add(&st->rrdhost->objects_nr, 1);
metalog_commit_update_dimension(rd);
#endif
return(rd);
}
// ----------------------------------------------------------------------------
// RRDDIM remove / free a dimension
void rrddim_free_custom(RRDSET *st, RRDDIM *rd, int db_rotated)
{
debug(D_RRD_CALLS, "rrddim_free() %s.%s", st->name, rd->name);
if (!rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) {
uint8_t can_delete_metric = rd->state->collect_ops.finalize(rd);
if (can_delete_metric && rd->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) {
#ifdef ENABLE_DBENGINE
/* This metric has no data and no references */
metalog_commit_delete_dimension(rd);
#endif
}
}
freez(rd->state);
if(rd == st->dimensions)
st->dimensions = rd->next;
else {
RRDDIM *i;
for (i = st->dimensions; i && i->next != rd; i = i->next) ;
if (i && i->next == rd)
i->next = rd->next;
else
error("Request to free dimension '%s.%s' but it is not linked.", st->id, rd->name);
}
rd->next = NULL;
while(rd->variables)
rrddimvar_free(rd->variables);
if(unlikely(rrddim_index_del(st, rd) != rd))
error("RRDDIM: INTERNAL ERROR: attempt to remove from index dimension '%s' on chart '%s', removed a different dimension.", rd->id, st->id);
// free(rd->annotations);
switch(rd->rrd_memory_mode) {
case RRD_MEMORY_MODE_SAVE:
case RRD_MEMORY_MODE_MAP:
case RRD_MEMORY_MODE_RAM:
debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
freez((void *)rd->id);
freez(rd->cache_filename);
munmap(rd, rd->memsize);
break;
case RRD_MEMORY_MODE_ALLOC:
case RRD_MEMORY_MODE_NONE:
case RRD_MEMORY_MODE_DBENGINE:
debug(D_RRD_CALLS, "Removing dimension '%s'.", rd->name);
freez((void *)rd->id);
freez(rd->cache_filename);
freez(rd);
break;
}
#ifdef ENABLE_ACLK
if ((netdata_cloud_setting) && (db_rotated || RRD_MEMORY_MODE_DBENGINE != rd->rrd_memory_mode))
aclk_update_chart(st->rrdhost, st->id, ACLK_CMD_CHART);
#endif
#ifdef ENABLE_DBENGINE
rrd_atomic_fetch_add(&st->rrdhost->objects_nr, -1);
#endif
}
// ----------------------------------------------------------------------------
// RRDDIM - set dimension options
int rrddim_hide(RRDSET *st, const char *id) {
debug(D_RRD_CALLS, "rrddim_hide() for chart %s, dimension %s", st->name, id);
RRDHOST *host = st->rrdhost;
RRDDIM *rd = rrddim_find(st, id);
if(unlikely(!rd)) {
error("Cannot find dimension with id '%s' on stats '%s' (%s) on host '%s'.", id, st->name, st->id, host->hostname);
return 1;
}
rrddim_flag_set(rd, RRDDIM_FLAG_HIDDEN);
#ifdef ENABLE_ACLK
if (netdata_cloud_setting)
aclk_update_chart(st->rrdhost, st->id, ACLK_CMD_CHART);
#endif
return 0;
}
int rrddim_unhide(RRDSET *st, const char *id) {
debug(D_RRD_CALLS, "rrddim_unhide() for chart %s, dimension %s", st->name, id);
RRDHOST *host = st->rrdhost;
RRDDIM *rd = rrddim_find(st, id);
if(unlikely(!rd)) {
error("Cannot find dimension with id '%s' on stats '%s' (%s) on host '%s'.", id, st->name, st->id, host->hostname);
return 1;
}
rrddim_flag_clear(rd, RRDDIM_FLAG_HIDDEN);
#ifdef ENABLE_ACLK
if (netdata_cloud_setting)
aclk_update_chart(st->rrdhost, st->id, ACLK_CMD_CHART);
#endif
return 0;
}
inline void rrddim_is_obsolete(RRDSET *st, RRDDIM *rd) {
debug(D_RRD_CALLS, "rrddim_is_obsolete() for chart %s, dimension %s", st->name, rd->name);
rrddim_flag_set(rd, RRDDIM_FLAG_OBSOLETE);
rrdset_flag_set(st, RRDSET_FLAG_OBSOLETE_DIMENSIONS);
#ifdef ENABLE_ACLK
if (netdata_cloud_setting)
aclk_update_chart(st->rrdhost, st->id, ACLK_CMD_CHART);
#endif
#ifdef ENABLE_DBENGINE
metalog_commit_update_dimension(rd);
#endif
}
inline void rrddim_isnot_obsolete(RRDSET *st __maybe_unused, RRDDIM *rd) {
debug(D_RRD_CALLS, "rrddim_isnot_obsolete() for chart %s, dimension %s", st->name, rd->name);
rrddim_flag_clear(rd, RRDDIM_FLAG_OBSOLETE);
#ifdef ENABLE_ACLK
if (netdata_cloud_setting)
aclk_update_chart(st->rrdhost, st->id, ACLK_CMD_CHART);
#endif
#ifdef ENABLE_DBENGINE
metalog_commit_update_dimension(rd);
#endif
}
// ----------------------------------------------------------------------------
// RRDDIM - collect values for a dimension
inline collected_number rrddim_set_by_pointer(RRDSET *st __maybe_unused, RRDDIM *rd, collected_number value) {
debug(D_RRD_CALLS, "rrddim_set_by_pointer() for chart %s, dimension %s, value " COLLECTED_NUMBER_FORMAT, st->name, rd->name, value);
now_realtime_timeval(&rd->last_collected_time);
rd->collected_value = value;
rd->updated = 1;
rd->collections_counter++;
collected_number v = (value >= 0) ? value : -value;
if(unlikely(v > rd->collected_value_max)) rd->collected_value_max = v;
// fprintf(stderr, "%s.%s %llu " COLLECTED_NUMBER_FORMAT " dt %0.6f" " rate " CALCULATED_NUMBER_FORMAT "\n", st->name, rd->name, st->usec_since_last_update, value, (float)((double)st->usec_since_last_update / (double)1000000), (calculated_number)((value - rd->last_collected_value) * (calculated_number)rd->multiplier / (calculated_number)rd->divisor * 1000000.0 / (calculated_number)st->usec_since_last_update));
return rd->last_collected_value;
}
collected_number rrddim_set(RRDSET *st, const char *id, collected_number value) {
RRDHOST *host = st->rrdhost;
RRDDIM *rd = rrddim_find(st, id);
if(unlikely(!rd)) {
error("Cannot find dimension with id '%s' on stats '%s' (%s) on host '%s'.", id, st->name, st->id, host->hostname);
return 0;
}
return rrddim_set_by_pointer(st, rd, value);
}
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