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_ZBXVARIANT_H

#define ZABBIX_ZBXVARIANT_H

​

#include "zbxalgo.h"

​

#define ZBX_INFINITY    (1.0 / 0.0) /* "Positive infinity" value used as a fatal error code */

#define ZBX_UNKNOWN (-1.0 / 0.0)    /* "Negative infinity" value used as a code for "Unknown" */

​

#define ZBX_UNKNOWN_STR     "ZBX_UNKNOWN"   /* textual representation of ZBX_UNKNOWN */

#define ZBX_UNKNOWN_STR_LEN ZBX_CONST_STRLEN(ZBX_UNKNOWN_STR)

​

ZBX_VECTOR_DECL(var, zbx_variant_t)

void    zbx_vector_var_clear_ext(zbx_vector_var_t *v);

​

typedef union

{

    zbx_uint64_t        ui64;

    double          dbl;

​

    /* null terminated string */

    char            *str;

​

    /* length prefixed (4 bytes) binary data */

    void            *bin;

​

    zbx_vector_var_t    *vector;

​

    /* null terminated error message */

    char            *err;

}

zbx_variant_data_t;

​

struct zbx_variant

{

    unsigned char       type;

    zbx_variant_data_t  data;

};

​

#define ZBX_VARIANT_NONE    0

#define ZBX_VARIANT_STR     1

#define ZBX_VARIANT_DBL     2

#define ZBX_VARIANT_UI64    3

#define ZBX_VARIANT_BIN     4

#define ZBX_VARIANT_VECTOR  5

#define ZBX_VARIANT_ERR     6

​

void        zbx_variant_clear(zbx_variant_t *value);

void        zbx_variant_set_none(zbx_variant_t *value);

void        zbx_variant_set_str(zbx_variant_t *value, char *text);