60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/*
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Copyright <2018-2025> <scott.e.graves@protonmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef REPERTORY_INCLUDE_UTILS_THROTTLE_HPP_
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#define REPERTORY_INCLUDE_UTILS_THROTTLE_HPP_
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namespace repertory {
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class throttle final {
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public:
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throttle() : max_size_(10u) {}
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explicit throttle(std::size_t max_size) : max_size_(max_size) {}
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public:
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throttle(const throttle &) noexcept = delete;
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throttle(throttle &&) noexcept = delete;
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auto operator=(const throttle &) -> throttle & = delete;
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auto operator=(throttle &&) -> throttle & = delete;
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public:
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~throttle() { shutdown(); }
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private:
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const std::size_t max_size_;
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std::size_t count_ = 0u;
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bool shutdown_ = false;
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std::mutex mutex_;
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std::condition_variable notify_;
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public:
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void decrement();
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void increment_or_wait();
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void reset();
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void shutdown();
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};
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} // namespace repertory
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#endif // REPERTORY_INCLUDE_UTILS_THROTTLE_HPP_
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