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 "zbxexpression.h"

#include "datafunc.h"

#include "evalfunc.h"

#include "expression.h"

​

#include "zbxcachevalue.h"

#include "zbxeval.h"

#include "zbxnum.h"

#include "zbxparam.h"

#include "zbxsysinfo.h"

#include "zbx_host_constants.h"

#include "zbx_item_constants.h"

#include "zbxtime.h"

​

#define ZBX_ITEM_QUERY_UNSET        0x0000

​

#define ZBX_ITEM_QUERY_HOST_SELF    0x0001

#define ZBX_ITEM_QUERY_HOST_ONE     0x0002

#define ZBX_ITEM_QUERY_HOST_ANY     0x0004

​

#define ZBX_ITEM_QUERY_KEY_ONE      0x0010

#define ZBX_ITEM_QUERY_KEY_SOME     0x0020

#define ZBX_ITEM_QUERY_KEY_ANY      0x0040

#define ZBX_ITEM_QUERY_FILTER       0x0100

​

#define ZBX_ITEM_QUERY_ERROR        0x8000

​

#define ZBX_ITEM_QUERY_MANY     (ZBX_ITEM_QUERY_HOST_ANY |\

                    ZBX_ITEM_QUERY_KEY_SOME | ZBX_ITEM_QUERY_KEY_ANY |\

                    ZBX_ITEM_QUERY_FILTER)

​

#define ZBX_ITEM_QUERY_ITEM_ANY     (ZBX_ITEM_QUERY_HOST_ANY | ZBX_ITEM_QUERY_KEY_ANY)

​

/* one item query data - index in hostkeys items */

typedef struct

{

    int dcitem_hk_index;

}

zbx_expression_query_one_t;

​

/* many items query data - matching itemids */

typedef struct

{

    zbx_vector_uint64_t itemids;

}

zbx_expression_query_many_t;

​

ZBX_PTR_VECTOR_IMPL(expression_group_ptr, zbx_expression_group_t *)

ZBX_PTR_VECTOR_IMPL(expression_item_ptr, zbx_expression_item_t *)

ZBX_PTR_VECTOR_IMPL(expression_query_ptr, zbx_expression_query_t *)

​

static void expression_query_free_one(zbx_expression_query_one_t *query)

{

    zbx_free(query);

}

​

static void expression_query_free_many(zbx_expression_query_many_t *query)

{

    zbx_vector_uint64_destroy(&query->itemids);

    zbx_free(query);

}

​

static void expression_query_free(zbx_expression_query_t *query)

{

    zbx_eval_clear_query(&query->ref);

​

    if (ZBX_ITEM_QUERY_ERROR == query->flags)

        zbx_free(query->error);

    else if (0 != (query->flags & ZBX_ITEM_QUERY_MANY))

        expression_query_free_many((zbx_expression_query_many_t*) query->data);

    else

        expression_query_free_one((zbx_expression_query_one_t*) query->data);

​

    zbx_free(query);

}

​

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