mirror of
https://github.com/systemd/systemd.git
synced 2024-12-25 01:34:28 +03:00
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
|
|
|
|
/***
|
|
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 General Public License as published by
|
|
the Free Software Foundation; either version 2 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
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <assert.h>
|
|
|
|
#include "ratelimit.h"
|
|
#include "log.h"
|
|
|
|
/* Modelled after Linux' lib/ratelimit.c by Dave Young
|
|
* <hidave.darkstar@gmail.com>, which is licensed GPLv2. */
|
|
|
|
bool ratelimit_test(RateLimit *r) {
|
|
usec_t timestamp;
|
|
|
|
timestamp = now(CLOCK_MONOTONIC);
|
|
|
|
assert(r);
|
|
assert(r->interval > 0);
|
|
assert(r->burst > 0);
|
|
|
|
if (r->begin <= 0 ||
|
|
r->begin + r->interval < timestamp) {
|
|
|
|
if (r->n_missed > 0)
|
|
log_warning("%u events suppressed", r->n_missed);
|
|
|
|
r->begin = timestamp;
|
|
|
|
/* Reset counters */
|
|
r->n_printed = 0;
|
|
r->n_missed = 0;
|
|
goto good;
|
|
}
|
|
|
|
if (r->n_printed <= r->burst)
|
|
goto good;
|
|
|
|
r->n_missed++;
|
|
return false;
|
|
|
|
good:
|
|
r->n_printed++;
|
|
return true;
|
|
}
|