netdata/src/database/sqlite/sqlite_context.c at master · orisano/netdata · GitHub

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// SPDX-License-Identifier: GPL-3.0-or-later

#include "sqlite_functions.h"

#include "sqlite_context.h"

#include "sqlite_db_migration.h"

#define DB_CONTEXT_METADATA_VERSION 1

const char *database_context_config[] = {

"CREATE TABLE IF NOT EXISTS context (host_id BLOB, id TEXT NOT NULL, version INT NOT NULL, title TEXT NOT NULL, "

"chart_type TEXT NOT NULL, unit TEXT NOT NULL, priority INT NOT NULL, first_time_t INT NOT NULL, "

"last_time_t INT NOT NULL, deleted INT NOT NULL, "

"family TEXT, PRIMARY KEY (host_id, id))",

NULL

};

const char *database_context_cleanup[] = {

"VACUUM",

NULL

};

sqlite3 *db_context_meta = NULL;

* Initialize the SQLite database

* Return 0 on success

int sql_init_context_database(int memory)

{

char sqlite_database[FILENAME_MAX + 1];

int rc;

if (likely(!memory))

snprintfz(sqlite_database, sizeof(sqlite_database) - 1, "%s/context-meta.db", netdata_configured_cache_dir);

else

strcpy(sqlite_database, ":memory:");

rc = sqlite3_open(sqlite_database, &db_context_meta);

if (rc != SQLITE_OK) {

error_report("Failed to initialize database at %s, due to \"%s\"", sqlite_database, sqlite3_errstr(rc));

sqlite3_close(db_context_meta);

db_context_meta = NULL;

return 1;

}

errno_clear();

netdata_log_info("SQLite database %s initialization", sqlite_database);

char buf[1024 + 1] = "";

const char *list[2] = { buf, NULL };

int target_version = DB_CONTEXT_METADATA_VERSION;

if (likely(!memory))

target_version = perform_context_database_migration(db_context_meta, DB_CONTEXT_METADATA_VERSION);

if (configure_sqlite_database(db_context_meta, target_version, "context_config"))

return 1;

if (likely(!memory))

snprintfz(buf, sizeof(buf) - 1, "ATTACH DATABASE \"%s/netdata-meta.db\" as meta", netdata_configured_cache_dir);

else

snprintfz(buf, sizeof(buf) - 1, "ATTACH DATABASE ':memory:' as meta");

if(init_database_batch(db_context_meta, list, "context")) return 1;

if (init_database_batch(db_context_meta, &database_context_config[0], "context_init"))

return 1;

if (init_database_batch(db_context_meta, &database_context_cleanup[0], "context_cleanup"))

return 1;

return 0;

}

// Fetching data

#define CTX_GET_CHART_LIST "SELECT c.chart_id, c.type||'.'||c.id, c.name, c.context, c.title, c.unit, c.priority, " \

"c.update_every, c.chart_type, c.family FROM chart c WHERE c.host_id = @host_id AND c.chart_id IS NOT NULL"

void ctx_get_chart_list(nd_uuid_t *host_uuid, void (*dict_cb)(SQL_CHART_DATA *, void *), void *data)

{

static __thread sqlite3_stmt *res = NULL;

if (unlikely(!host_uuid)) {

internal_error(true, "Requesting context chart list without host_id");

return;

}

if (!PREPARE_COMPILED_STATEMENT(db_meta, CTX_GET_CHART_LIST, &res))

return;

int param = 0;

SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));

param = 0;

SQL_CHART_DATA chart_data = { 0 };

while (sqlite3_step_monitored(res) == SQLITE_ROW) {

uuid_copy(chart_data.chart_id, *((nd_uuid_t *)sqlite3_column_blob(res, 0)));

chart_data.id = (char *) sqlite3_column_text(res, 1);

chart_data.name = (char *) sqlite3_column_text(res, 2);

chart_data.context = (char *) sqlite3_column_text(res, 3);

chart_data.title = (char *) sqlite3_column_text(res, 4);

chart_data.units = (char *) sqlite3_column_text(res, 5);

chart_data.priority = sqlite3_column_int(res, 6);

chart_data.update_every = sqlite3_column_int(res, 7);

chart_data.chart_type = sqlite3_column_int(res, 8);

chart_data.family = (char *) sqlite3_column_text(res, 9);

dict_cb(&chart_data, data);

}

done:

REPORT_BIND_FAIL(res, param);

SQLITE_RESET(res);

}

// Dimension list

#define CTX_GET_DIMENSION_LIST "SELECT d.dim_id, d.id, d.name, CASE WHEN INSTR(d.options,\"hidden\") > 0 THEN 1 ELSE 0 END " \

"FROM dimension d WHERE d.chart_id = @id AND d.dim_id IS NOT NULL ORDER BY d.rowid ASC"

void ctx_get_dimension_list(nd_uuid_t *chart_uuid, void (*dict_cb)(SQL_DIMENSION_DATA *, void *), void *data)

{

static __thread sqlite3_stmt *res = NULL;

if (!PREPARE_COMPILED_STATEMENT(db_meta, CTX_GET_DIMENSION_LIST, &res))

return;

int param = 0;

SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC));

SQL_DIMENSION_DATA dimension_data;

param = 0;

while (sqlite3_step_monitored(res) == SQLITE_ROW) {

uuid_copy(dimension_data.dim_id, *((nd_uuid_t *)sqlite3_column_blob(res, 0)));

dimension_data.id = (char *) sqlite3_column_text(res, 1);

dimension_data.name = (char *) sqlite3_column_text(res, 2);

dimension_data.hidden = sqlite3_column_int(res, 3);

dict_cb(&dimension_data, data);

}

done:

REPORT_BIND_FAIL(res, param);

SQLITE_RESET(res);

}

// LABEL LIST

#define CTX_GET_LABEL_LIST "SELECT l.label_key, l.label_value, l.source_type FROM meta.chart_label l WHERE l.chart_id = @id"

void ctx_get_label_list(nd_uuid_t *chart_uuid, void (*dict_cb)(SQL_CLABEL_DATA *, void *), void *data)

{

static __thread sqlite3_stmt *res = NULL;

if (!PREPARE_COMPILED_STATEMENT(db_context_meta, CTX_GET_LABEL_LIST, &res))

return;

int param = 0;

SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC));

param = 0;

SQL_CLABEL_DATA label_data;

while (sqlite3_step_monitored(res) == SQLITE_ROW) {

label_data.label_key = (char *) sqlite3_column_text(res, 0);

label_data.label_value = (char *) sqlite3_column_text(res, 1);

label_data.label_source = sqlite3_column_int(res, 2);

dict_cb(&label_data, data);

}

done:

REPORT_BIND_FAIL(res, param);

SQLITE_RESET(res);

}

// CONTEXT LIST

#define CTX_GET_CONTEXT_LIST "SELECT id, version, title, chart_type, unit, priority, first_time_t, " \

"last_time_t, deleted, family FROM context c WHERE c.host_id = @host_id"

void ctx_get_context_list(nd_uuid_t *host_uuid, void (*dict_cb)(VERSIONED_CONTEXT_DATA *, void *), void *data)

{

if (unlikely(!host_uuid))

return;

static __thread sqlite3_stmt *res = NULL;

if (!PREPARE_COMPILED_STATEMENT(db_context_meta, CTX_GET_CONTEXT_LIST, &res))

return;

VERSIONED_CONTEXT_DATA context_data = {0};

int param = 0;

SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));

param = 0;

while (sqlite3_step_monitored(res) == SQLITE_ROW) {

context_data.id = (char *) sqlite3_column_text(res, 0);

context_data.version = sqlite3_column_int64(res, 1);

context_data.title = (char *) sqlite3_column_text(res, 2);

context_data.chart_type = (char *) sqlite3_column_text(res, 3);

context_data.units = (char *) sqlite3_column_text(res, 4);

context_data.priority = sqlite3_column_int64(res, 5);

context_data.first_time_s = sqlite3_column_int64(res, 6);

context_data.last_time_s = sqlite3_column_int64(res, 7);

context_data.deleted = sqlite3_column_int(res, 8);

context_data.family = (char *) sqlite3_column_text(res, 9);

dict_cb(&context_data, data);

}

done:

REPORT_BIND_FAIL(res, param);

SQLITE_RESET(res);

}

// Storing Data

#define CTX_STORE_CONTEXT \

"INSERT OR REPLACE INTO context " \

"(host_id, id, version, title, chart_type, unit, priority, first_time_t, last_time_t, deleted, family) " \

"VALUES (@host_id, @context, @version, @title, @chart_type, @unit, @priority, @first_t, @last_t, @delete, @family)"

int ctx_store_context(nd_uuid_t *host_uuid, VERSIONED_CONTEXT_DATA *context_data)

{

int rc_stored = 1;

sqlite3_stmt *res = NULL;

if (unlikely(!host_uuid || !context_data || !context_data->id))

return 0;

if (!PREPARE_STATEMENT(db_context_meta, CTX_STORE_CONTEXT, &res))

return 1;

int param = 0;

SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));

SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->id, 0));

SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->version));

SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->title, 0));

SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->chart_type, 0));

SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->units, 0));

SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->priority));

SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->first_time_s));

SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->last_time_s));

SQLITE_BIND_FAIL(done, sqlite3_bind_int(res, ++param, context_data->deleted));

SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->family, 1));

param = 0;

rc_stored = execute_insert(res);

if (rc_stored != SQLITE_DONE)

error_report("Failed store context details for context %s, rc = %d", context_data->id, rc_stored);

done:

REPORT_BIND_FAIL(res, param);

SQLITE_FINALIZE(res);

return (rc_stored != SQLITE_DONE);

}

// Delete a context

#define CTX_DELETE_CONTEXT "DELETE FROM context WHERE host_id = @host_id AND id = @context"

int ctx_delete_context(nd_uuid_t *host_uuid, VERSIONED_CONTEXT_DATA *context_data)

{

int rc_stored = 1;

sqlite3_stmt *res = NULL;

if (unlikely(!context_data || !context_data->id))

return 0;

if (!PREPARE_STATEMENT(db_context_meta, CTX_DELETE_CONTEXT, &res))

return 1;

int param = 0;

SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));

SQLITE_BIND_FAIL(done, sqlite3_bind_text(res, ++param, context_data->id, -1, SQLITE_STATIC));

param = 0;

rc_stored = execute_insert(res);

if (rc_stored != SQLITE_DONE)

error_report("Failed to delete context %s, rc = %d", context_data->id, rc_stored);

done:

REPORT_BIND_FAIL(res, param);

SQLITE_FINALIZE(res);

return (rc_stored != SQLITE_DONE);

}

int sql_context_cache_stats(int op)

{

int count, dummy;

if (unlikely(!db_context_meta))

return 0;

sqlite3_db_status(db_context_meta, op, &count, &dummy, 0);

return count;

}

uint64_t sqlite_get_context_space(void)

{

return sqlite_get_db_space(db_context_meta);

}

// TESTING FUNCTIONS

static void dict_ctx_get_context_list_cb(VERSIONED_CONTEXT_DATA *context_data, void *data)

{

(void)data;

netdata_log_info(" Context id = %s "

"version = %"PRIu64" "

"title = %s "

"chart_type = %s "

"units = %s "

"priority = %"PRIu64" "

"first time = %"PRIu64" "

"last time = %"PRIu64" "

"deleted = %d "

"family = %s",

context_data->id,

context_data->version,

context_data->title,

context_data->chart_type,

context_data->units,

context_data->priority,

context_data->first_time_s,

context_data->last_time_s,

context_data->deleted,

context_data->family);

}

int ctx_unittest(void)

{

nd_uuid_t host_uuid;

uuid_generate(host_uuid);

if (sqlite_library_init())

return 1;

int rc = sql_init_context_database(1);

if (rc != SQLITE_OK)

return 1;

// Store a context

VERSIONED_CONTEXT_DATA context_data;

context_data.id = strdupz("cpu.cpu");

context_data.title = strdupz("TestContextTitle");

context_data.units= strdupz("TestContextUnits");

context_data.chart_type = strdupz("TestContextChartType");

context_data.family = strdupz("TestContextFamily");

context_data.priority = 50000;

context_data.deleted = 0;

context_data.first_time_s = 1657781000;

context_data.last_time_s = 1657781100;

context_data.version = now_realtime_usec();

if (likely(!ctx_store_context(&host_uuid, &context_data)))

netdata_log_info("Entry %s inserted", context_data.id);

else

netdata_log_info("Entry %s not inserted", context_data.id);

if (likely(!ctx_store_context(&host_uuid, &context_data)))

netdata_log_info("Entry %s inserted", context_data.id);

else

netdata_log_info("Entry %s not inserted", context_data.id);

// This will change end time

context_data.first_time_s = 1657781000;

context_data.last_time_s = 1657782001;

if (likely(!ctx_update_context(&host_uuid, &context_data)))

netdata_log_info("Entry %s updated", context_data.id);

else

netdata_log_info("Entry %s not updated", context_data.id);

netdata_log_info("List context start after insert");

ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);

netdata_log_info("List context end after insert");

// This will change start time

context_data.first_time_s = 1657782000;

context_data.last_time_s = 1657782001;

if (likely(!ctx_update_context(&host_uuid, &context_data)))

netdata_log_info("Entry %s updated", context_data.id);

else

netdata_log_info("Entry %s not updated", context_data.id);

// This will list one entry

netdata_log_info("List context start after insert");

ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);

netdata_log_info("List context end after insert");

netdata_log_info("List context start after insert");

ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);

netdata_log_info("List context end after insert");

// This will delete the entry

if (likely(!ctx_delete_context(&host_uuid, &context_data)))

netdata_log_info("Entry %s deleted", context_data.id);

else

netdata_log_info("Entry %s not deleted", context_data.id);

freez((void *)context_data.id);

freez((void *)context_data.title);

freez((void *)context_data.chart_type);

freez((void *)context_data.family);

freez((void *)context_data.units);

// The list should be empty

netdata_log_info("List context start after delete");

ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);

netdata_log_info("List context end after delete");

sql_close_database(db_context_meta, "CONTEXT");

sqlite_library_shutdown();

return 0;

}

netdata/src/database/sqlite/sqlite_context.c at master · orisano/netdata · GitHub

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