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/>.

**/

​

#ifndef ZABBIX_PP_PREPROCBASE_H

#define ZABBIX_PP_PREPROCBASE_H

​

#include "zbxalgo.h"

#include "zbxvariant.h"

#include "zbxtime.h"

​

/* one preprocessing step history */

typedef struct

{

    int     index;

    zbx_variant_t   value;

    zbx_timespec_t  ts;

}

zbx_pp_step_history_t;

​

ZBX_VECTOR_DECL(pp_step_history, zbx_pp_step_history_t)

​

/* item preprocessing history for preprocessing steps using previous values */

typedef struct

{

    zbx_vector_pp_step_history_t    step_history;

    unsigned int            refcount;

}

zbx_pp_history_t;

​

typedef struct zbx_pp_history_cache zbx_pp_history_cache_t;

​

zbx_pp_history_t    *zbx_pp_history_create(int history_num);

void            zbx_pp_history_init(zbx_pp_history_t *history);

void            zbx_pp_history_clear(zbx_pp_history_t *history);

zbx_pp_history_t    *zbx_pp_history_release(zbx_pp_history_t *history);

void            zbx_pp_history_reserve(zbx_pp_history_t *history, int history_num);

void            zbx_pp_history_add(zbx_pp_history_t *history, int index, zbx_variant_t *value,

                    zbx_timespec_t ts);

void            zbx_pp_history_get(const zbx_pp_history_t *history, int index, const zbx_variant_t **value,

                    zbx_timespec_t *ts);

​

zbx_pp_history_cache_t  *zbx_pp_history_cache_create(void);

zbx_pp_history_cache_t  *zbx_pp_history_cache_acquire(zbx_pp_history_cache_t *history_cache);

void            zbx_pp_history_cache_release(zbx_pp_history_cache_t *history_cache);

zbx_pp_history_t    *zbx_pp_history_cache_history_acquire(zbx_pp_history_cache_t *history_cache);

void            zbx_pp_history_cache_history_set_and_release(zbx_pp_history_cache_t *history_cache,

                zbx_pp_history_t *history_in, zbx_pp_history_t *history_out);

​

typedef enum

{

    ZBX_PP_PROCESS_PARALLEL,

    ZBX_PP_PROCESS_SERIAL