76 lines
2.3 KiB
C++
76 lines
2.3 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_POLLING_HPP_
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#define INCLUDE_UTILS_POLLING_HPP_
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#include "common.hpp"
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namespace repertory {
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class app_config;
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class polling final {
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public:
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struct polling_item {
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std::string name;
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bool low_frequency;
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std::function<void()> action;
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};
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public:
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polling(const polling &) = delete;
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polling(polling &&) = delete;
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polling &operator=(const polling &) = delete;
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polling &operator=(polling &&) = delete;
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private:
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polling() = default;
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~polling() { stop(); }
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private:
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static polling instance_;
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public:
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static polling &instance() { return instance_; }
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private:
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app_config *config_ = nullptr;
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std::unique_ptr<std::thread> high_frequency_thread_;
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std::unordered_map<std::string, polling_item> items_;
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std::unique_ptr<std::thread> low_frequency_thread_;
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std::mutex mutex_;
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std::condition_variable notify_;
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std::mutex start_stop_mutex_;
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bool stop_requested_ = false;
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private:
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void frequency_thread(std::function<std::uint32_t()> get_frequency_seconds, bool low_frequency);
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public:
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void remove_callback(const std::string &name);
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void set_callback(const polling_item &item);
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void start(app_config *config);
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void stop();
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};
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} // namespace repertory
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#endif // INCLUDE_UTILS_POLLING_HPP_
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