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 "zbxexpr.h"

​

#include "zbxnum.h"

#include "zbxtime.h"

​

#define ZBX_SCHEDULER_FILTER_DAY    1

#define ZBX_SCHEDULER_FILTER_HOUR   2

#define ZBX_SCHEDULER_FILTER_MINUTE 3

#define ZBX_SCHEDULER_FILTER_SECOND 4

​

typedef struct

{

    int start_day;  /* day of week when period starts */

    int end_day;    /* day of week when period ends, included */

    int start_time; /* number of seconds from the beginning of the day when period starts */

    int end_time;   /* number of seconds from the beginning of the day when period ends, not included */

}

zbx_time_period_t;

​

typedef struct zbx_scheduler_filter

{

    int             start;

    int             end;

    int             step;

​

    struct zbx_scheduler_filter *next;

}

zbx_scheduler_filter_t;

​

typedef struct zbx_scheduler_interval

{

    zbx_scheduler_filter_t      *mdays;

    zbx_scheduler_filter_t      *wdays;

    zbx_scheduler_filter_t      *hours;

    zbx_scheduler_filter_t      *minutes;

    zbx_scheduler_filter_t      *seconds;

​

    int             filter_level;

​

    struct zbx_scheduler_interval   *next;

}

zbx_scheduler_interval_t;

​

typedef struct zbx_flexible_interval

{

    zbx_time_period_t       period;

    int             delay;

​

    struct zbx_flexible_interval    *next;

}

zbx_flexible_interval_t;

​

struct zbx_custom_interval

{

    zbx_flexible_interval_t     *flexible;

    zbx_scheduler_interval_t    *scheduling;

};

​

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

 *                                                                            *

 * Purpose: checks if current time is within given period                     *

 *                                                                            *

 * Parameters: period - [IN] preprocessed time period                         *

 *             tm     - [IN] broken-down time for comparison                  *

 *                                                                            *

 * Return value: FAIL - out of period, SUCCEED - within the period            *

 *                                                                            *

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

static int  check_time_period(const zbx_time_period_t period, const struct tm *tm)

{

    int     day, time;

​

    day = 0 == tm->tm_wday ? 7 : tm->tm_wday;

    time = SEC_PER_HOUR * tm->tm_hour + SEC_PER_MIN * tm->tm_min + tm->tm_sec;

​

    return period.start_day <= day && day <= period.end_day && period.start_time <= time && time < period.end_time ?

            SUCCEED : FAIL;