72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
/*
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Copyright <2018-2024> <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 INCLUDE_DRIVES_DIRECTORY_CACHE_HPP_
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#define INCLUDE_DRIVES_DIRECTORY_CACHE_HPP_
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#include "utils/single_thread_service_base.hpp"
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namespace repertory {
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class directory_iterator;
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class directory_cache final : public single_thread_service_base {
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public:
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using execute_callback = std::function<void(directory_iterator &)>;
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private:
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struct open_directory {
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directory_iterator *iterator{nullptr};
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std::chrono::system_clock::time_point last_update{
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std::chrono::system_clock::now()};
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};
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public:
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directory_cache() : single_thread_service_base("directory_cache") {}
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~directory_cache() override = default;
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directory_cache(const directory_cache &) = delete;
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directory_cache(directory_cache &&) = delete;
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auto operator=(const directory_cache &) -> directory_cache & = delete;
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auto operator=(directory_cache &&) -> directory_cache & = delete;
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private:
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std::unordered_map<std::string, open_directory> directory_lookup_;
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std::recursive_mutex directory_mutex_;
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std::unique_ptr<std::thread> refresh_thread_;
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protected:
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void service_function() override;
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public:
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void execute_action(const std::string &api_path,
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const execute_callback &execute);
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[[nodiscard]] auto remove_directory(const std::string &api_path)
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-> directory_iterator *;
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void remove_directory(directory_iterator *iterator);
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void set_directory(const std::string &api_path, directory_iterator *iterator);
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};
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} // namespace repertory
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#endif // INCLUDE_DRIVES_DIRECTORY_CACHE_HPP_
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