Files
scylladb/utils/rate_limiter.hh
Yaniv Kaul c658bdb150 Typos: fix typos in comments
Fixes some typos as found by codespell run on the code.
In this commit, I was hoping to fix only comments, not user-visible alerts, output, etc.
Follow-up commits will take care of them.

Refs: https://github.com/scylladb/scylladb/issues/16255
Signed-off-by: Yaniv Kaul <yaniv.kaul@scylladb.com>
2023-12-02 22:37:22 +02:00

36 lines
687 B
C++

/*
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include <seastar/core/timer.hh>
#include <seastar/core/semaphore.hh>
#include <seastar/core/seastar.hh>
#include "seastarx.hh"
namespace utils {
/**
* 100% naive rate limiter. Consider it a placeholder
* Will let you process X "units" per second, then reset this every s.
* Obviously, accuracy is virtually non-existent and steady rate will fluctuate.
*/
class rate_limiter {
private:
timer<lowres_clock> _timer;
size_t _units_per_s;
semaphore _sem {0};
void on_timer();
public:
rate_limiter(size_t rate);
future<> reserve(size_t u);
};
}