59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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Copyright <2018-2022> <scott.e.graves@protonmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
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associated documentation files (the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge, publish, distribute,
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sublicense, and/or sell 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 copies or
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substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
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OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef INCLUDE_UTILS_THROTTLE_HPP_
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#define INCLUDE_UTILS_THROTTLE_HPP_
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#include "common.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(const 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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throttle &operator=(const throttle &) = delete;
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throttle &operator=(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 // INCLUDE_UTILS_THROTTLE_HPP_
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