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 "zbxdbwrap.h"

​

#include "zbxdbhigh.h"

#include "zbxalgo.h"

#include "zbxcacheconfig.h"

#include "zbxeval.h"

#include "zbxexpr.h"

#include "zbxnum.h"

#include "zbxstr.h"

#include "zbxtime.h"

#include "zbxvariant.h"

#include "zbx_expression_constants.h"

#include "zbxexpression.h"

#include "zbxdb.h"

​

/* temporary cache of trigger related data */

typedef struct

{

    zbx_uint32_t        init;

    zbx_uint32_t        done;

    zbx_eval_context_t  eval_ctx;

    zbx_eval_context_t  eval_ctx_r;

    zbx_vector_uint64_t hostids;

}

zbx_trigger_cache_t;

​

/* related trigger data caching states */

typedef enum

{

    ZBX_TRIGGER_CACHE_EVAL_CTX,

    ZBX_TRIGGER_CACHE_EVAL_CTX_R,

    ZBX_TRIGGER_CACHE_EVAL_CTX_MACROS,

    ZBX_TRIGGER_CACHE_EVAL_CTX_R_MACROS,

    ZBX_TRIGGER_CACHE_HOSTIDS,

}

zbx_trigger_cache_state_t;

​

static int  db_trigger_expand_macros(const zbx_db_trigger *trigger, zbx_eval_context_t *ctx);

​

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

 *                                                                            *

 * Purpose: get trigger cache with the requested data cached                  *

 *                                                                            *

 * Parameters: trigger - [IN] the trigger                                     *

 *             state   - [IN] the required cache state                        *

 *                                                                            *

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

static zbx_trigger_cache_t  *db_trigger_get_cache(const zbx_db_trigger *trigger, zbx_trigger_cache_state_t state)

{