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

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include "forward.h"

typedef struct RateLimit {
        usec_t interval; /* Keep those two fields first so they can be initialized easily: */
        unsigned burst;  /*   RateLimit rl = { INTERVAL, BURST }; */
        unsigned num;
        usec_t begin;
} RateLimit;

#define RATELIMIT_OFF (const RateLimit) { .interval = USEC_INFINITY, .burst = UINT_MAX }

static inline void ratelimit_reset(RateLimit *rl) {
        rl->num = rl->begin = 0;
}

static inline bool ratelimit_configured(const RateLimit *rl) {
        return rl->interval > 0 && rl->burst > 0;
}

bool ratelimit_below(RateLimit *rl);

unsigned ratelimit_num_dropped(const RateLimit *rl);

usec_t ratelimit_end(const RateLimit *rl);
usec_t ratelimit_left(const RateLimit *rl);
Commit	Line	Data
	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
	2	#pragma once
	3
	4	#include "forward.h"
	5
	6	typedef struct RateLimit {
	7	usec_t interval; /* Keep those two fields first so they can be initialized easily: */
	8	unsigned burst; /* RateLimit rl = { INTERVAL, BURST }; */
	9	unsigned num;
	10	usec_t begin;
	11	} RateLimit;
	12
	13	#define RATELIMIT_OFF (const RateLimit) { .interval = USEC_INFINITY, .burst = UINT_MAX }
	14
	15	static inline void ratelimit_reset(RateLimit *rl) {
	16	rl->num = rl->begin = 0;
	17	}
	18
	19	static inline bool ratelimit_configured(const RateLimit *rl) {
	20	return rl->interval > 0 && rl->burst > 0;
	21	}
	22
	23	bool ratelimit_below(RateLimit *rl);
	24
	25	unsigned ratelimit_num_dropped(const RateLimit *rl);
	26
	27	usec_t ratelimit_end(const RateLimit *rl);
	28	usec_t ratelimit_left(const RateLimit *rl);