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https://github.com/scylladb/scylladb.git
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88ade3110f
This removes the need to include reactor.hh, a source of compile time bloat. In some places, the call is qualified with seastar:: in order to resolve ambiguities with a local name. Includes are adjusted to make everything compile. We end up having 14 translation units including reactor.hh, primarily for deprecated things like reactor::at_exit(). Ref #1
49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <seastar/core/timer.hh>
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#include <seastar/core/semaphore.hh>
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#include <seastar/core/seastar.hh>
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#include "seastarx.hh"
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namespace utils {
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/**
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* 100% naive rate limiter. Consider it a placeholder
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* Will let you process X "units" per second, then reset this every s.
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* Obviously, accuracy is virtually non-existant and steady rate will fluctuate.
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*/
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class rate_limiter {
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private:
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timer<lowres_clock> _timer;
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size_t _units_per_s;
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semaphore _sem {0};
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void on_timer();
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public:
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rate_limiter(size_t rate);
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future<> reserve(size_t u);
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};
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}
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