move to new build system

repertory2/librepertory2/include/utils/polling.hpp

@@ -0,0 +1,86 @@
+/*
+  Copyright <2018-2024> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+#ifndef INCLUDE_UTILS_POLLING_HPP_
+#define INCLUDE_UTILS_POLLING_HPP_
+
+#include "types/repertory.hpp"
+
+namespace repertory {
+class app_config;
+class polling final {
+public:
+  enum struct frequency {
+    high,
+    low,
+    second,
+  };
+
+  struct polling_item {
+    std::string name;
+    frequency freq;
+    std::function<void()> action;
+  };
+
+public:
+  polling(const polling &) = delete;
+  polling(polling &&) = delete;
+  auto operator=(const polling &) -> polling & = delete;
+  auto operator=(polling &&) -> polling & = delete;
+
+private:
+  polling() = default;
+
+  ~polling() { stop(); }
+
+private:
+  static polling instance_;
+
+public:
+  static auto instance() -> polling & { return instance_; }
+
+private:
+  app_config *config_ = nullptr;
+  std::unique_ptr<std::thread> high_frequency_thread_;
+  std::unordered_map<std::string, polling_item> items_;
+  std::unique_ptr<std::thread> low_frequency_thread_;
+  std::mutex mutex_;
+  std::condition_variable notify_;
+  std::unique_ptr<std::thread> second_frequency_thread_;
+  std::mutex start_stop_mutex_;
+  stop_type stop_requested_ = false;
+
+private:
+  void frequency_thread(std::function<std::uint32_t()> get_frequency_seconds,
+                        frequency freq);
+
+public:
+  void remove_callback(const std::string &name);
+
+  void set_callback(const polling_item &item);
+
+  void start(app_config *config);
+
+  void stop();
+};
+} // namespace repertory
+
+#endif // INCLUDE_UTILS_POLLING_HPP_