[systemd.git] / src / basic / ratelimit.h

#pragma once

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <stdbool.h>

#include "time-util.h"
#include "util.h"

typedef struct RateLimit {
        usec_t interval;
        usec_t begin;
        unsigned burst;
        unsigned num;
} RateLimit;

#define RATELIMIT_DEFINE(_name, _interval, _burst)       \
        RateLimit _name = {                              \
                .interval = (_interval),                 \
                .burst = (_burst),                       \
                .num = 0,                                \
                .begin = 0                               \
        }

#define RATELIMIT_INIT(v, _interval, _burst)             \
        do {                                             \
                RateLimit *_r = &(v);                    \
                _r->interval = (_interval);              \
                _r->burst = (_burst);                    \
                _r->num = 0;                             \
                _r->begin = 0;                           \
        } while (false)

#define RATELIMIT_RESET(v)                               \
        do {                                             \
                RateLimit *_r = &(v);                    \
                _r->num = 0;                             \
                _r->begin = 0;                           \
        } while (false)

bool ratelimit_test(RateLimit *r);
Commit	Line	Data
663996b3 MS	1	#pragma once
	2
	3	/***
	4	This file is part of systemd.
	5
	6	Copyright 2010 Lennart Poettering
	7
	8	systemd is free software; you can redistribute it and/or modify it
	9	under the terms of the GNU Lesser General Public License as published by
	10	the Free Software Foundation; either version 2.1 of the License, or
	11	(at your option) any later version.
	12
	13	systemd is distributed in the hope that it will be useful, but
	14	WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	Lesser General Public License for more details.
	17
	18	You should have received a copy of the GNU Lesser General Public License
	19	along with systemd; If not, see <http://www.gnu.org/licenses/>.
	20	***/
	21
4c89c718 MP	22	#include <stdbool.h>
	23
	24	#include "time-util.h"
663996b3 MS	25	#include "util.h"
	26
	27	typedef struct RateLimit {
	28	usec_t interval;
	29	usec_t begin;
	30	unsigned burst;
	31	unsigned num;
	32	} RateLimit;
	33
	34	#define RATELIMIT_DEFINE(_name, _interval, _burst) \
	35	RateLimit _name = { \
	36	.interval = (_interval), \
	37	.burst = (_burst), \
	38	.num = 0, \
	39	.begin = 0 \
	40	}
	41
	42	#define RATELIMIT_INIT(v, _interval, _burst) \
	43	do { \
	44	RateLimit *_r = &(v); \
	45	_r->interval = (_interval); \
	46	_r->burst = (_burst); \
	47	_r->num = 0; \
	48	_r->begin = 0; \
	49	} while (false)
	50
	51	#define RATELIMIT_RESET(v) \
	52	do { \
	53	RateLimit *_r = &(v); \
	54	_r->num = 0; \
	55	_r->begin = 0; \
	56	} while (false)
	57
	58	bool ratelimit_test(RateLimit *r);