Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** 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 General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "pb_history.h"

#include "zbxproxybuffer.h"

#include "zbxcacheconfig.h"

#include "zbxcachehistory.h"

#include "proxybuffer.h"

#include "zbxdbhigh.h"

#include "zbx_item_constants.h"

#include "zbx_host_constants.h"

​

static void pb_history_add_rows_db(zbx_list_t *rows, zbx_list_item_t *next, zbx_uint64_t *lastid);

​

struct zbx_pb_history_data

{

    zbx_pb_state_t  state;

    zbx_list_t  rows;

    int     rows_num;

    zbx_db_insert_t db_insert;

    zbx_uint64_t    handleid;

};

​

void    pb_list_free_history(zbx_list_t *list, zbx_pb_history_t *row)

{

    if (NULL != row->value)

        list->mem_free_func(row->value);

    if (NULL != row->source)

        list->mem_free_func(row->source);

    list->mem_free_func(row);

}

​

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

 *                                                                            *

 * Purpose: estimate approximate history row size in cache                    *

 *                                                                            *

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

size_t  pb_history_estimate_row_size(const char *value, const char *source)

{

    size_t  size = 0;

​

    size += zbx_shmem_required_chunk_size(sizeof(zbx_pb_history_t));

    size += zbx_shmem_required_chunk_size(sizeof(zbx_list_item_t));

    size += zbx_shmem_required_chunk_size(strlen(value) + 1);

    size += zbx_shmem_required_chunk_size(strlen(source) + 1);

​

    return size;