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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-07-24 09:54:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-07-24 09:54:44 +0000
commit836b47cb7e99a977c5a23b059ca1d0b5065d310e (patch)
tree1604da8f482d02effa033c94a84be42bc0c848c3 /database/ram
parentReleasing debian version 1.44.3-2. (diff)
downloadnetdata-836b47cb7e99a977c5a23b059ca1d0b5065d310e.tar.xz
netdata-836b47cb7e99a977c5a23b059ca1d0b5065d310e.zip
Merging upstream version 1.46.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'database/ram')
-rw-r--r--database/ram/Makefile.am11
-rw-r--r--database/ram/README.md11
-rw-r--r--database/ram/rrddim_mem.c437
-rw-r--r--database/ram/rrddim_mem.h54
4 files changed, 0 insertions, 513 deletions
diff --git a/database/ram/Makefile.am b/database/ram/Makefile.am
deleted file mode 100644
index 59250a99..00000000
--- a/database/ram/Makefile.am
+++ /dev/null
@@ -1,11 +0,0 @@
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-AUTOMAKE_OPTIONS = subdir-objects
-MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
-
-SUBDIRS = \
- $(NULL)
-
-dist_noinst_DATA = \
- README.md \
- $(NULL)
diff --git a/database/ram/README.md b/database/ram/README.md
deleted file mode 100644
index 56cb7275..00000000
--- a/database/ram/README.md
+++ /dev/null
@@ -1,11 +0,0 @@
-<!--
-title: "RAM database modes"
-description: "Netdata's RAM database modes."
-custom_edit_url: https://github.com/netdata/netdata/edit/master/database/ram/README.md
-sidebar_label: "RAM database modes"
-learn_status: "Published"
-learn_topic_type: "References"
-learn_rel_path: "Developers/Database"
--->
-
-# RAM database modes
diff --git a/database/ram/rrddim_mem.c b/database/ram/rrddim_mem.c
deleted file mode 100644
index a434f57d..00000000
--- a/database/ram/rrddim_mem.c
+++ /dev/null
@@ -1,437 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "rrddim_mem.h"
-#include "Judy.h"
-
-static Pvoid_t rrddim_JudyHS_array = NULL;
-static netdata_rwlock_t rrddim_JudyHS_rwlock = NETDATA_RWLOCK_INITIALIZER;
-
-// ----------------------------------------------------------------------------
-// metrics groups
-
-STORAGE_METRICS_GROUP *rrddim_metrics_group_get(STORAGE_INSTANCE *db_instance __maybe_unused, uuid_t *uuid __maybe_unused) {
- return NULL;
-}
-
-void rrddim_metrics_group_release(STORAGE_INSTANCE *db_instance __maybe_unused, STORAGE_METRICS_GROUP *smg __maybe_unused) {
- // if(!smg) return; // smg may be NULL
- ;
-}
-
-// ----------------------------------------------------------------------------
-// RRDDIM legacy data collection functions
-
-struct mem_metric_handle {
- RRDDIM *rd;
-
- size_t counter;
- size_t entries;
- size_t current_entry;
- time_t last_updated_s;
- time_t update_every_s;
-
- int32_t refcount;
-};
-
-static void update_metric_handle_from_rrddim(struct mem_metric_handle *mh, RRDDIM *rd) {
- mh->counter = rd->rrdset->counter;
- mh->entries = rd->rrdset->db.entries;
- mh->current_entry = rd->rrdset->db.current_entry;
- mh->last_updated_s = rd->rrdset->last_updated.tv_sec;
- mh->update_every_s = rd->rrdset->update_every;
-}
-
-static void check_metric_handle_from_rrddim(struct mem_metric_handle *mh) {
- RRDDIM *rd = mh->rd; (void)rd;
- internal_fatal(mh->entries != (size_t)rd->rrdset->db.entries, "RRDDIM: entries do not match");
- internal_fatal(mh->update_every_s != rd->rrdset->update_every, "RRDDIM: update every does not match");
-}
-
-STORAGE_METRIC_HANDLE *
-rrddim_metric_get_or_create(RRDDIM *rd, STORAGE_INSTANCE *db_instance __maybe_unused) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)rrddim_metric_get(db_instance, &rd->metric_uuid);
- while(!mh) {
- netdata_rwlock_wrlock(&rrddim_JudyHS_rwlock);
- Pvoid_t *PValue = JudyHSIns(&rrddim_JudyHS_array, &rd->metric_uuid, sizeof(uuid_t), PJE0);
- mh = *PValue;
- if(!mh) {
- mh = callocz(1, sizeof(struct mem_metric_handle));
- mh->rd = rd;
- mh->refcount = 1;
- update_metric_handle_from_rrddim(mh, rd);
- *PValue = mh;
- __atomic_add_fetch(&rrddim_db_memory_size, sizeof(struct mem_metric_handle) + JUDYHS_INDEX_SIZE_ESTIMATE(sizeof(uuid_t)), __ATOMIC_RELAXED);
- }
- else {
- if(__atomic_add_fetch(&mh->refcount, 1, __ATOMIC_RELAXED) <= 0)
- mh = NULL;
- }
- netdata_rwlock_unlock(&rrddim_JudyHS_rwlock);
- }
-
- internal_fatal(mh->rd != rd, "RRDDIM_MEM: incorrect pointer returned from index.");
-
- return (STORAGE_METRIC_HANDLE *)mh;
-}
-
-STORAGE_METRIC_HANDLE *
-rrddim_metric_get(STORAGE_INSTANCE *db_instance __maybe_unused, uuid_t *uuid) {
- struct mem_metric_handle *mh = NULL;
- netdata_rwlock_rdlock(&rrddim_JudyHS_rwlock);
- Pvoid_t *PValue = JudyHSGet(rrddim_JudyHS_array, uuid, sizeof(uuid_t));
- if (likely(NULL != PValue)) {
- mh = *PValue;
- if(__atomic_add_fetch(&mh->refcount, 1, __ATOMIC_RELAXED) <= 0)
- mh = NULL;
- }
- netdata_rwlock_unlock(&rrddim_JudyHS_rwlock);
-
- return (STORAGE_METRIC_HANDLE *)mh;
-}
-
-STORAGE_METRIC_HANDLE *rrddim_metric_dup(STORAGE_METRIC_HANDLE *db_metric_handle) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
- __atomic_add_fetch(&mh->refcount, 1, __ATOMIC_RELAXED);
- return db_metric_handle;
-}
-
-void rrddim_metric_release(STORAGE_METRIC_HANDLE *db_metric_handle __maybe_unused) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
-
- if(__atomic_sub_fetch(&mh->refcount, 1, __ATOMIC_RELAXED) == 0) {
- // we are the last one holding this
-
- int32_t expected = 0;
- if(__atomic_compare_exchange_n(&mh->refcount, &expected, -99999, false, __ATOMIC_RELAXED, __ATOMIC_RELAXED)) {
- // we can delete it
-
- RRDDIM *rd = mh->rd;
- netdata_rwlock_wrlock(&rrddim_JudyHS_rwlock);
- JudyHSDel(&rrddim_JudyHS_array, &rd->metric_uuid, sizeof(uuid_t), PJE0);
- netdata_rwlock_unlock(&rrddim_JudyHS_rwlock);
-
- freez(mh);
- __atomic_sub_fetch(&rrddim_db_memory_size, sizeof(struct mem_metric_handle) + JUDYHS_INDEX_SIZE_ESTIMATE(sizeof(uuid_t)), __ATOMIC_RELAXED);
- }
- }
-}
-
-bool rrddim_metric_retention_by_uuid(STORAGE_INSTANCE *db_instance __maybe_unused, uuid_t *uuid, time_t *first_entry_s, time_t *last_entry_s) {
- STORAGE_METRIC_HANDLE *db_metric_handle = rrddim_metric_get(db_instance, uuid);
- if(!db_metric_handle)
- return false;
-
- *first_entry_s = rrddim_query_oldest_time_s(db_metric_handle);
- *last_entry_s = rrddim_query_latest_time_s(db_metric_handle);
-
- return true;
-}
-
-void rrddim_store_metric_change_collection_frequency(STORAGE_COLLECT_HANDLE *collection_handle, int update_every) {
- struct mem_collect_handle *ch = (struct mem_collect_handle *)collection_handle;
- struct mem_metric_handle *mh = (struct mem_metric_handle *)ch->db_metric_handle;
-
- rrddim_store_metric_flush(collection_handle);
- mh->update_every_s = update_every;
-}
-
-STORAGE_COLLECT_HANDLE *rrddim_collect_init(STORAGE_METRIC_HANDLE *db_metric_handle, uint32_t update_every __maybe_unused, STORAGE_METRICS_GROUP *smg __maybe_unused) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
- RRDDIM *rd = mh->rd;
-
- update_metric_handle_from_rrddim(mh, rd);
- internal_fatal((uint32_t)mh->update_every_s != update_every, "RRDDIM: update requested does not match the dimension");
-
- struct mem_collect_handle *ch = callocz(1, sizeof(struct mem_collect_handle));
- ch->common.backend = STORAGE_ENGINE_BACKEND_RRDDIM;
- ch->rd = rd;
- ch->db_metric_handle = db_metric_handle;
-
- __atomic_add_fetch(&rrddim_db_memory_size, sizeof(struct mem_collect_handle), __ATOMIC_RELAXED);
-
- return (STORAGE_COLLECT_HANDLE *)ch;
-}
-
-void rrddim_store_metric_flush(STORAGE_COLLECT_HANDLE *collection_handle) {
- struct mem_collect_handle *ch = (struct mem_collect_handle *)collection_handle;
- struct mem_metric_handle *mh = (struct mem_metric_handle *)ch->db_metric_handle;
-
- RRDDIM *rd = mh->rd;
- size_t entries = mh->entries;
- storage_number empty = pack_storage_number(NAN, SN_FLAG_NONE);
-
- for(size_t i = 0; i < entries ;i++)
- rd->db.data[i] = empty;
-
- mh->counter = 0;
- mh->last_updated_s = 0;
- mh->current_entry = 0;
-}
-
-static inline void rrddim_fill_the_gap(STORAGE_COLLECT_HANDLE *collection_handle, time_t now_collect_s) {
- struct mem_collect_handle *ch = (struct mem_collect_handle *)collection_handle;
- struct mem_metric_handle *mh = (struct mem_metric_handle *)ch->db_metric_handle;
-
- RRDDIM *rd = mh->rd;
-
- internal_fatal(ch->rd != mh->rd, "RRDDIM: dimensions do not match");
- check_metric_handle_from_rrddim(mh);
-
- size_t entries = mh->entries;
- time_t update_every_s = mh->update_every_s;
- time_t last_stored_s = mh->last_updated_s;
- size_t gap_entries = (now_collect_s - last_stored_s) / update_every_s;
- if(gap_entries >= entries)
- rrddim_store_metric_flush(collection_handle);
-
- else {
- storage_number empty = pack_storage_number(NAN, SN_FLAG_NONE);
- size_t current_entry = mh->current_entry;
- time_t now_store_s = last_stored_s + update_every_s;
-
- // fill the dimension
- size_t c;
- for(c = 0; c < entries && now_store_s <= now_collect_s ; now_store_s += update_every_s, c++) {
- rd->db.data[current_entry++] = empty;
-
- if(unlikely(current_entry >= entries))
- current_entry = 0;
- }
- mh->counter += c;
- mh->current_entry = current_entry;
- mh->last_updated_s = now_store_s;
- }
-}
-
-void rrddim_collect_store_metric(STORAGE_COLLECT_HANDLE *collection_handle,
- usec_t point_in_time_ut,
- NETDATA_DOUBLE n,
- NETDATA_DOUBLE min_value __maybe_unused,
- NETDATA_DOUBLE max_value __maybe_unused,
- uint16_t count __maybe_unused,
- uint16_t anomaly_count __maybe_unused,
- SN_FLAGS flags)
-{
- struct mem_collect_handle *ch = (struct mem_collect_handle *)collection_handle;
- struct mem_metric_handle *mh = (struct mem_metric_handle *)ch->db_metric_handle;
-
- RRDDIM *rd = ch->rd;
- time_t point_in_time_s = (time_t)(point_in_time_ut / USEC_PER_SEC);
-
- internal_fatal(ch->rd != mh->rd, "RRDDIM: dimensions do not match");
- check_metric_handle_from_rrddim(mh);
-
- if(unlikely(point_in_time_s <= mh->last_updated_s))
- return;
-
- if(unlikely(mh->last_updated_s && point_in_time_s - mh->update_every_s > mh->last_updated_s))
- rrddim_fill_the_gap(collection_handle, point_in_time_s);
-
- rd->db.data[mh->current_entry] = pack_storage_number(n, flags);
- mh->counter++;
- mh->current_entry = (mh->current_entry + 1) >= mh->entries ? 0 : mh->current_entry + 1;
- mh->last_updated_s = point_in_time_s;
-}
-
-int rrddim_collect_finalize(STORAGE_COLLECT_HANDLE *collection_handle) {
- freez(collection_handle);
- __atomic_sub_fetch(&rrddim_db_memory_size, sizeof(struct mem_collect_handle), __ATOMIC_RELAXED);
- return 0;
-}
-
-// ----------------------------------------------------------------------------
-
-// get the total duration in seconds of the round-robin database
-#define metric_duration(mh) (( (time_t)(mh)->counter >= (time_t)(mh)->entries ? (time_t)(mh)->entries : (time_t)(mh)->counter ) * (time_t)(mh)->update_every_s)
-
-// get the last slot updated in the round-robin database
-#define rrddim_last_slot(mh) ((size_t)(((mh)->current_entry == 0) ? (mh)->entries - 1 : (mh)->current_entry - 1))
-
-// return the slot that has the oldest value
-#define rrddim_first_slot(mh) ((size_t)((mh)->counter >= (size_t)(mh)->entries ? (mh)->current_entry : 0))
-
-// get the slot of the round-robin database, for the given timestamp (t)
-// it always returns a valid slot, although it may not be for the time requested if the time is outside the round-robin database
-// only valid when not using dbengine
-static inline size_t rrddim_time2slot(STORAGE_METRIC_HANDLE *db_metric_handle, time_t t) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
- RRDDIM *rd = mh->rd;
-
- size_t ret = 0;
- time_t last_entry_s = rrddim_query_latest_time_s(db_metric_handle);
- time_t first_entry_s = rrddim_query_oldest_time_s(db_metric_handle);
- size_t entries = mh->entries;
- size_t first_slot = rrddim_first_slot(mh);
- size_t last_slot = rrddim_last_slot(mh);
- size_t update_every = mh->update_every_s;
-
- if(t >= last_entry_s) {
- // the requested time is after the last entry we have
- ret = last_slot;
- }
- else {
- if(t <= first_entry_s) {
- // the requested time is before the first entry we have
- ret = first_slot;
- }
- else {
- if(last_slot >= (size_t)((last_entry_s - t) / update_every))
- ret = last_slot - ((last_entry_s - t) / update_every);
- else
- ret = last_slot - ((last_entry_s - t) / update_every) + entries;
- }
- }
-
- if(unlikely(ret >= entries)) {
- netdata_log_error("INTERNAL ERROR: rrddim_time2slot() on %s returns values outside entries", rrddim_name(rd));
- ret = entries - 1;
- }
-
- return ret;
-}
-
-// get the timestamp of a specific slot in the round-robin database
-// only valid when not using dbengine
-static inline time_t rrddim_slot2time(STORAGE_METRIC_HANDLE *db_metric_handle, size_t slot) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
- RRDDIM *rd = mh->rd;
-
- time_t ret;
- time_t last_entry_s = rrddim_query_latest_time_s(db_metric_handle);
- time_t first_entry_s = rrddim_query_oldest_time_s(db_metric_handle);
- size_t entries = mh->entries;
- size_t last_slot = rrddim_last_slot(mh);
- size_t update_every = mh->update_every_s;
-
- if(slot >= entries) {
- netdata_log_error("INTERNAL ERROR: caller of rrddim_slot2time() gives invalid slot %zu", slot);
- slot = entries - 1;
- }
-
- if(slot > last_slot)
- ret = last_entry_s - (time_t)(update_every * (last_slot - slot + entries));
- else
- ret = last_entry_s - (time_t)(update_every * (last_slot - slot));
-
- if(unlikely(ret < first_entry_s)) {
- netdata_log_error("INTERNAL ERROR: rrddim_slot2time() on dimension '%s' of chart '%s' returned time (%ld) too far in the past (before first_entry_s %ld) for slot %zu",
- rrddim_name(rd), rrdset_id(rd->rrdset), ret, first_entry_s, slot);
-
- ret = first_entry_s;
- }
-
- if(unlikely(ret > last_entry_s)) {
- netdata_log_error("INTERNAL ERROR: rrddim_slot2time() on dimension '%s' of chart '%s' returned time (%ld) too far into the future (after last_entry_s %ld) for slot %zu",
- rrddim_name(rd), rrdset_id(rd->rrdset), ret, last_entry_s, slot);
-
- ret = last_entry_s;
- }
-
- return ret;
-}
-
-// ----------------------------------------------------------------------------
-// RRDDIM legacy database query functions
-
-void rrddim_query_init(STORAGE_METRIC_HANDLE *db_metric_handle, struct storage_engine_query_handle *handle, time_t start_time_s, time_t end_time_s, STORAGE_PRIORITY priority __maybe_unused) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
-
- check_metric_handle_from_rrddim(mh);
-
- handle->start_time_s = start_time_s;
- handle->end_time_s = end_time_s;
- handle->priority = priority;
- handle->backend = STORAGE_ENGINE_BACKEND_RRDDIM;
- struct mem_query_handle* h = mallocz(sizeof(struct mem_query_handle));
- h->db_metric_handle = db_metric_handle;
-
- h->slot = rrddim_time2slot(db_metric_handle, start_time_s);
- h->last_slot = rrddim_time2slot(db_metric_handle, end_time_s);
- h->dt = mh->update_every_s;
-
- h->next_timestamp = start_time_s;
- h->slot_timestamp = rrddim_slot2time(db_metric_handle, h->slot);
- h->last_timestamp = rrddim_slot2time(db_metric_handle, h->last_slot);
-
- // netdata_log_info("RRDDIM QUERY INIT: start %ld, end %ld, next %ld, first %ld, last %ld, dt %ld", start_time, end_time, h->next_timestamp, h->slot_timestamp, h->last_timestamp, h->dt);
-
- __atomic_add_fetch(&rrddim_db_memory_size, sizeof(struct mem_query_handle), __ATOMIC_RELAXED);
- handle->handle = (STORAGE_QUERY_HANDLE *)h;
-}
-
-// Returns the metric and sets its timestamp into current_time
-// IT IS REQUIRED TO **ALWAYS** SET ALL RETURN VALUES (current_time, end_time, flags)
-// IT IS REQUIRED TO **ALWAYS** KEEP TRACK OF TIME, EVEN OUTSIDE THE DATABASE BOUNDARIES
-STORAGE_POINT rrddim_query_next_metric(struct storage_engine_query_handle *handle) {
- struct mem_query_handle* h = (struct mem_query_handle*)handle->handle;
- struct mem_metric_handle *mh = (struct mem_metric_handle *)h->db_metric_handle;
- RRDDIM *rd = mh->rd;
-
- size_t entries = mh->entries;
- size_t slot = h->slot;
-
- STORAGE_POINT sp;
- sp.count = 1;
-
- time_t this_timestamp = h->next_timestamp;
- h->next_timestamp += h->dt;
-
- // set this timestamp for our caller
- sp.start_time_s = this_timestamp - h->dt;
- sp.end_time_s = this_timestamp;
-
- if(unlikely(this_timestamp < h->slot_timestamp)) {
- storage_point_empty(sp, sp.start_time_s, sp.end_time_s);
- return sp;
- }
-
- if(unlikely(this_timestamp > h->last_timestamp)) {
- storage_point_empty(sp, sp.start_time_s, sp.end_time_s);
- return sp;
- }
-
- storage_number n = rd->db.data[slot++];
- if(unlikely(slot >= entries)) slot = 0;
-
- h->slot = slot;
- h->slot_timestamp += h->dt;
-
- sp.anomaly_count = is_storage_number_anomalous(n) ? 1 : 0;
- sp.flags = (n & SN_USER_FLAGS);
- sp.min = sp.max = sp.sum = unpack_storage_number(n);
-
- return sp;
-}
-
-int rrddim_query_is_finished(struct storage_engine_query_handle *handle) {
- struct mem_query_handle *h = (struct mem_query_handle*)handle->handle;
- return (h->next_timestamp > handle->end_time_s);
-}
-
-void rrddim_query_finalize(struct storage_engine_query_handle *handle) {
-#ifdef NETDATA_INTERNAL_CHECKS
- struct mem_query_handle *h = (struct mem_query_handle*)handle->handle;
- struct mem_metric_handle *mh = (struct mem_metric_handle *)h->db_metric_handle;
-
- internal_error(!rrddim_query_is_finished(handle),
- "QUERY: query for chart '%s' dimension '%s' has been stopped unfinished",
- rrdset_id(mh->rd->rrdset), rrddim_name(mh->rd));
-
-#endif
- freez(handle->handle);
- __atomic_sub_fetch(&rrddim_db_memory_size, sizeof(struct mem_query_handle), __ATOMIC_RELAXED);
-}
-
-time_t rrddim_query_align_to_optimal_before(struct storage_engine_query_handle *rrddim_handle) {
- return rrddim_handle->end_time_s;
-}
-
-time_t rrddim_query_latest_time_s(STORAGE_METRIC_HANDLE *db_metric_handle) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
- return mh->last_updated_s;
-}
-
-time_t rrddim_query_oldest_time_s(STORAGE_METRIC_HANDLE *db_metric_handle) {
- struct mem_metric_handle *mh = (struct mem_metric_handle *)db_metric_handle;
- return (time_t)(mh->last_updated_s - metric_duration(mh));
-}
diff --git a/database/ram/rrddim_mem.h b/database/ram/rrddim_mem.h
deleted file mode 100644
index a75814a0..00000000
--- a/database/ram/rrddim_mem.h
+++ /dev/null
@@ -1,54 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#ifndef NETDATA_RRDDIMMEM_H
-#define NETDATA_RRDDIMMEM_H
-
-#include "database/rrd.h"
-
-struct mem_collect_handle {
- struct storage_collect_handle common; // has to be first item
-
- STORAGE_METRIC_HANDLE *db_metric_handle;
- RRDDIM *rd;
-};
-
-struct mem_query_handle {
- STORAGE_METRIC_HANDLE *db_metric_handle;
- time_t dt;
- time_t next_timestamp;
- time_t last_timestamp;
- time_t slot_timestamp;
- size_t slot;
- size_t last_slot;
-};
-
-STORAGE_METRIC_HANDLE *rrddim_metric_get_or_create(RRDDIM *rd, STORAGE_INSTANCE *db_instance);
-STORAGE_METRIC_HANDLE *rrddim_metric_get(STORAGE_INSTANCE *db_instance, uuid_t *uuid);
-STORAGE_METRIC_HANDLE *rrddim_metric_dup(STORAGE_METRIC_HANDLE *db_metric_handle);
-void rrddim_metric_release(STORAGE_METRIC_HANDLE *db_metric_handle);
-
-bool rrddim_metric_retention_by_uuid(STORAGE_INSTANCE *db_instance, uuid_t *uuid, time_t *first_entry_s, time_t *last_entry_s);
-
-STORAGE_METRICS_GROUP *rrddim_metrics_group_get(STORAGE_INSTANCE *db_instance, uuid_t *uuid);
-void rrddim_metrics_group_release(STORAGE_INSTANCE *db_instance, STORAGE_METRICS_GROUP *smg);
-
-STORAGE_COLLECT_HANDLE *rrddim_collect_init(STORAGE_METRIC_HANDLE *db_metric_handle, uint32_t update_every, STORAGE_METRICS_GROUP *smg);
-void rrddim_store_metric_change_collection_frequency(STORAGE_COLLECT_HANDLE *collection_handle, int update_every);
-void rrddim_collect_store_metric(STORAGE_COLLECT_HANDLE *collection_handle, usec_t point_in_time_ut, NETDATA_DOUBLE n,
- NETDATA_DOUBLE min_value,
- NETDATA_DOUBLE max_value,
- uint16_t count,
- uint16_t anomaly_count,
- SN_FLAGS flags);
-void rrddim_store_metric_flush(STORAGE_COLLECT_HANDLE *collection_handle);
-int rrddim_collect_finalize(STORAGE_COLLECT_HANDLE *collection_handle);
-
-void rrddim_query_init(STORAGE_METRIC_HANDLE *db_metric_handle, struct storage_engine_query_handle *handle, time_t start_time_s, time_t end_time_s, STORAGE_PRIORITY priority);
-STORAGE_POINT rrddim_query_next_metric(struct storage_engine_query_handle *handle);
-int rrddim_query_is_finished(struct storage_engine_query_handle *handle);
-void rrddim_query_finalize(struct storage_engine_query_handle *handle);
-time_t rrddim_query_latest_time_s(STORAGE_METRIC_HANDLE *db_metric_handle);
-time_t rrddim_query_oldest_time_s(STORAGE_METRIC_HANDLE *db_metric_handle);
-time_t rrddim_query_align_to_optimal_before(struct storage_engine_query_handle *rrddim_handle);
-
-#endif