Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

** See the GNU Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "history.h"

​

#include "zbxstr.h"

#include "zbxalgo.h"

#include "zbxnum.h"

#include "zbxprof.h"

​

ZBX_VECTOR_IMPL(history_record, zbx_history_record_t)

​

ZBX_PTR_VECTOR_IMPL(dc_history_ptr, zbx_dc_history_t *)

​

void    zbx_dc_history_shallow_free(zbx_dc_history_t *dc_history)

{

    zbx_free(dc_history);

}

​

zbx_history_iface_t history_ifaces[ITEM_VALUE_TYPE_BIN + 1];

​

/************************************************************************************

 *                                                                                  *

 * Purpose: initializes history storage                                             *

 *                                                                                  *

 * Comments: History interfaces are created for all values types based on           *

 *           configuration. Every value type can have different history storage     *

 *           backend. (Binary value type is not supported for ElasticSearch)        *

 *                                                                                  *

 ************************************************************************************/

int zbx_history_init(const char *config_history_storage_url, const char *config_history_storage_opts,

        int config_log_slow_queries, char **error)

{

    /* TODO: support per value type specific configuration */

​

    const char  *opts[] = {"dbl", "str", "log", "uint", "text", "bin"};

​

    for (int i = ITEM_VALUE_TYPE_FLOAT; i <= ITEM_VALUE_TYPE_BIN; i++)

    {

​

        if (NULL == config_history_storage_url || NULL == strstr(config_history_storage_opts, opts[i]))

        {

            zbx_history_sql_init(&history_ifaces[i], i);

        }

        else

        {

            if (ITEM_VALUE_TYPE_BIN == i)

            {

                *error = zbx_strdup(*error, "Binary value type is not supported for ElasticSearch"

                        " history storage");

                return FAIL;

            }

​

            if (FAIL == zbx_history_elastic_init(&history_ifaces[i], i, config_history_storage_url,

                    config_log_slow_queries, error))

            {

                return FAIL;

            }

        }

    }

​

    return SUCCEED;

}

​

/************************************************************************************

 *                                                                                  *

 * Purpose: destroys history storage                                                *

 *                                                                                  *

 * Comments: All interfaces created by zbx_history_init() function are destroyed    *

 *           here.                                                                  *

 *                                                                                  *

 ************************************************************************************/

void    zbx_history_destroy(void)

{

    int i;

​

    for (i = 0; i <= ITEM_VALUE_TYPE_BIN; i++)

    {

        zbx_history_iface_t *writer = &history_ifaces[i];

​