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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
c2f1db8f | 2 | #pragma once |
1e2e8133 | 3 | |
a7334b09 LP |
4 | /*** |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
10 | under the terms of the GNU Lesser General Public License as published by |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
12 | (at your option) any later version. |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 17 | Lesser General Public License for more details. |
a7334b09 | 18 | |
5430f7f2 | 19 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
21 | ***/ | |
22 | ||
11c3a366 TA |
23 | #include <stdbool.h> |
24 | ||
25 | #include "time-util.h" | |
1e2e8133 LP |
26 | #include "util.h" |
27 | ||
28 | typedef struct RateLimit { | |
29 | usec_t interval; | |
9d58f1db | 30 | usec_t begin; |
1e2e8133 | 31 | unsigned burst; |
4ce9faa9 | 32 | unsigned num; |
1e2e8133 LP |
33 | } RateLimit; |
34 | ||
47be870b LP |
35 | #define RATELIMIT_DEFINE(_name, _interval, _burst) \ |
36 | RateLimit _name = { \ | |
37 | .interval = (_interval), \ | |
38 | .burst = (_burst), \ | |
4ce9faa9 | 39 | .num = 0, \ |
47be870b | 40 | .begin = 0 \ |
1e2e8133 LP |
41 | } |
42 | ||
47be870b LP |
43 | #define RATELIMIT_INIT(v, _interval, _burst) \ |
44 | do { \ | |
45 | RateLimit *_r = &(v); \ | |
46 | _r->interval = (_interval); \ | |
47 | _r->burst = (_burst); \ | |
4ce9faa9 | 48 | _r->num = 0; \ |
47be870b | 49 | _r->begin = 0; \ |
acdfc041 | 50 | } while (false) |
1e2e8133 | 51 | |
451b34cc LP |
52 | #define RATELIMIT_RESET(v) \ |
53 | do { \ | |
54 | RateLimit *_r = &(v); \ | |
55 | _r->num = 0; \ | |
56 | _r->begin = 0; \ | |
57 | } while (false) | |
58 | ||
1e2e8133 | 59 | bool ratelimit_test(RateLimit *r); |