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 "timer.h"

​

#include "zbxalgo.h"

#include "zbxdb.h"

#include "zbxdbhigh.h"

#include "zbxstr.h"

#include "zbxlog.h"

#include "zbxcacheconfig.h"

#include "zbxnix.h"

#include "zbxself.h"

#include "zbxnum.h"

#include "zbxtime.h"

#include "zbx_host_constants.h"

#include "zbxservice.h"

#include "zbxserialize.h"

​

/* addition data for event maintenance calculations to pair with zbx_event_suppress_query_t */

typedef struct

{

    zbx_uint64_t            eventid;

    zbx_vector_uint64_pair_t    maintenances;

}

zbx_event_suppress_data_t;

​

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

 *                                                                            *

 * Purpose: logs host maintenance changes                                     *

 *                                                                            *

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

static void log_host_maintenance_update(const zbx_host_maintenance_diff_t* diff)

{

    char    *msg = NULL;

    size_t  msg_alloc = 0, msg_offset = 0;

    int maintenance_off = 0;

​

    if (0 != (diff->flags & ZBX_FLAG_HOST_MAINTENANCE_UPDATE_MAINTENANCE_STATUS))

    {

        if (HOST_MAINTENANCE_STATUS_ON == diff->maintenance_status)

        {

            zbx_snprintf_alloc(&msg, &msg_alloc, &msg_offset, "putting host (" ZBX_FS_UI64 ") into",

                    diff->hostid);

        }

        else

        {

            maintenance_off = 1;

            zbx_snprintf_alloc(&msg, &msg_alloc, &msg_offset, "taking host (" ZBX_FS_UI64 ") out of",

                diff->hostid);

        }

    }

    else

        zbx_snprintf_alloc(&msg, &msg_alloc, &msg_offset, "changing host (" ZBX_FS_UI64 ")", diff->hostid);

​

    zbx_strcpy_alloc(&msg, &msg_alloc, &msg_offset, " maintenance");

​

    if (0 != (diff->flags & ZBX_FLAG_HOST_MAINTENANCE_UPDATE_MAINTENANCEID) && 0 != diff->maintenanceid)

        zbx_snprintf_alloc(&msg, &msg_alloc, &msg_offset, "(" ZBX_FS_UI64 ")", diff->maintenanceid);

​

    if (0 != (diff->flags & ZBX_FLAG_HOST_MAINTENANCE_UPDATE_MAINTENANCE_TYPE) && 0 == maintenance_off)

    {

        const char  *description[] = {"with data collection", "without data collection"};

​

        zbx_snprintf_alloc(&msg, &msg_alloc, &msg_offset, " %s", description[diff->maintenance_type]);

    }

​

    zabbix_log(LOG_LEVEL_DEBUG, "%s", msg);

    zbx_free(msg);

}

​

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

 *                                                                            *

 * Purpose: updates host maintenance properties in database                   *

 *                                                                            *

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

static void db_update_host_maintenances(const zbx_vector_host_maintenance_diff_ptr_t *updates)

{

    char                    *sql = NULL;

    size_t                  sql_alloc = 0, sql_offset = 0;