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spa: add spa_ratelimit

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This commit is contained in:
Wim Taymans 2023-07-11 19:25:13 +02:00
parent 17bc9d520e
commit dc07c2321b
8 changed files with 76 additions and 69 deletions
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42
spa/include/spa/utils/ratelimit.h Normal file
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/* Ratelimit */
/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#ifndef SPA_RATELIMIT_H
#define SPA_RATELIMIT_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
struct spa_ratelimit {
uint64_t interval;
uint64_t begin;
unsigned burst;
unsigned n_printed;
unsigned n_missed;
};
static inline int spa_ratelimit_test(struct spa_ratelimit *r, uint64_t now)
{
unsigned missed = 0;
if (r->begin + r->interval < now) {
missed = r->n_missed;
r->begin = now;
r->n_printed = 0;
r->n_missed = 0;
} else if (r->n_printed >= r->burst) {
r->n_missed++;
return -1;
}
r->n_printed++;
return missed;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_RATELIMIT_H */