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35 lines
868 B
C++
35 lines
868 B
C++
#pragma once
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#include <functional>
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#include <string>
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#include <filesystem>
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#include <vector>
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#include <unordered_map>
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#include <future>
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#include "util.hpp"
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#include "http.hpp"
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class Cache {
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public:
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Cache();
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~Cache();
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using callback_type = std::function<void(std::string)>;
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void GetFileFromURL(std::string url, callback_type cb);
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std::string GetPathIfCached(std::string url);
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void ClearCache();
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private:
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std::string GetCachedName(std::string str);
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void CleanupFutures();
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void RespondFromPath(std::filesystem::path path, callback_type cb);
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void OnResponse(const http::response_type &r);
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std::unique_ptr<Semaphore> m_semaphore;
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std::unordered_map<std::string, std::vector<callback_type>> m_callbacks;
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std::vector<std::future<void>> m_futures;
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std::filesystem::path m_tmp_path;
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bool m_canceled = false;
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};
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