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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
commit | 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch) | |
tree | 33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/basic/ratelimit.h | |
parent | Initial commit. (diff) | |
download | systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip |
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/basic/ratelimit.h')
-rw-r--r-- | src/basic/ratelimit.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/basic/ratelimit.h b/src/basic/ratelimit.h new file mode 100644 index 0000000..492ea3b --- /dev/null +++ b/src/basic/ratelimit.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <stdbool.h> + +#include "time-util.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(RateLimit *rl) { + return rl->interval > 0 && rl->burst > 0; +} + +bool ratelimit_below(RateLimit *r); + +unsigned ratelimit_num_dropped(RateLimit *r); + +usec_t ratelimit_end(const RateLimit *rl); +usec_t ratelimit_left(const RateLimit *rl); |