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 "zbxdbhigh.h"

​

#include "zbxalgo.h"

#include "zbxstr.h"

​

ZBX_PTR_VECTOR_IMPL(item_param_ptr, zbx_item_param_t *)

​

zbx_item_param_t    *zbx_item_param_create(const char *item_param_name,

        const char *item_param_value)

{

    zbx_item_param_t    *item_param;

​

    item_param = (zbx_item_param_t *)zbx_malloc(NULL, sizeof(zbx_item_param_t));

​

    item_param->item_parameterid = 0;

    item_param->flags = ZBX_FLAG_ITEM_PARAM_UPDATE_RESET;

    item_param->name = zbx_strdup(NULL, item_param_name);

    item_param->name_orig = NULL;

    item_param->value = zbx_strdup(NULL, item_param_value);

    item_param->value_orig = NULL;

​

    return item_param;

}

​

void    zbx_item_param_free(zbx_item_param_t *param)

{

​

    if (0 != (param->flags & ZBX_FLAG_ITEM_PARAM_UPDATE_NAME))

        zbx_free(param->name_orig);

    zbx_free(param->name);

​

    if (0 != (param->flags & ZBX_FLAG_ITEM_PARAM_UPDATE_VALUE))

        zbx_free(param->value_orig);

    zbx_free(param->value);

​

    zbx_free(param);

}

​

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

 *                                                                            *

 * Purpose: roll back item_param updates done during merge process            *

 *                                                                            *

 * Return value: SUCCEED - updates were rolled back                           *

 *               FAIL    - new item_param, rollback impossible                *

 *                                                                            *

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

static int  item_param_rollback(zbx_item_param_t *item_param)

{

    if (0 == item_param->item_parameterid)

        return FAIL;

​

    if (0 != (item_param->flags & ZBX_FLAG_ITEM_PARAM_UPDATE_NAME))

    {

        zbx_free(item_param->name);

        item_param->name = item_param->name_orig;

        item_param->name_orig = NULL;

        item_param->flags &= (~ZBX_FLAG_ITEM_PARAM_UPDATE_NAME);

    }

​

    if (0 != (item_param->flags & ZBX_FLAG_ITEM_PARAM_UPDATE_VALUE))

    {

        zbx_free(item_param->value);

        item_param->value = item_param->value_orig;

        item_param->value_orig = NULL;

        item_param->flags &= (~ZBX_FLAG_ITEM_PARAM_UPDATE_VALUE);

    }

​

    return SUCCEED;

}

​

#define ZBX_ITEM_PARAM_OP(item_param) (0 == item_param->item_parameterid ? "create" : "update")

​

typedef enum

{

    ZBX_ITEM_PARAM_NAME,

    ZBX_ITEM_PARAM_VALUE

}