Zabbix

/*

** Zabbix

** Copyright (C) 2001-2022 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** 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 General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "common.h"

#include "db.h"

#include "zbxtasks.h"

#include "log.h"

#include "zbxserver.h"

#include "postinit.h"

​

#define ZBX_HIST_MACRO_NONE     (-1)

#define ZBX_HIST_MACRO_ITEM_VALUE   0

#define ZBX_HIST_MACRO_ITEM_LASTVALUE   1

​

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

 *                                                                            *

 * Purpose: gets the total number of triggers on system                       *

 *                                                                            *

 * Parameters:                                                                *

 *                                                                            *

 * Return value: The total number of triggers on system.                      *

 *                                                                            *

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

static int  get_trigger_count(void)

{

    DB_RESULT   result;

    DB_ROW      row;

    int     triggers_num;

​

    result = DBselect("select count(*) from triggers");

    if (NULL != (row = DBfetch(result)))

        triggers_num = atoi(row[0]);

    else

        triggers_num = 0;

    DBfree_result(result);

​

    return triggers_num;

}

​

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

 *                                                                            *

 * Purpose: checks if this is historical macro that cannot be expanded for    *

 *          bulk event name update                                            *

 *                                                                            *

 * Parameters: macro      - [IN] the macro name                               *

 *                                                                            *

 * Return value: ZBX_HIST_MACRO_* defines                                     *

 *                                                                            *

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

static int  is_historical_macro(const char *macro)

{

    if (0 == strncmp(macro, "ITEM.VALUE", ZBX_CONST_STRLEN("ITEM.VALUE")))

        return ZBX_HIST_MACRO_ITEM_VALUE;

​

    if (0 == strncmp(macro, "ITEM.LASTVALUE", ZBX_CONST_STRLEN("ITEM.LASTVALUE")))

        return ZBX_HIST_MACRO_ITEM_LASTVALUE;

​

    return ZBX_HIST_MACRO_NONE;

}

​

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

 *                                                                            *

 * Purpose: translates historical macro to lld macro format                   *

 *                                                                            *

 * Parameters: macro - [IN] the macro type (see ZBX_HIST_MACRO_* defines)     *

 *                                                                            *

 * Return value: the macro                                                    *

 *                                                                            *

 * Comments: Some of the macros can be converted to different name.           *

 *                                                                            *

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

static const char   *convert_historical_macro(int macro)

{

    /* When expanding macros for old events ITEM.LASTVALUE macro would */

    /* always expand to one (latest) value. Expanding it as ITEM.VALUE */