LibraryManager.hpp

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/*
** EPITECH PROJECT, 2025
** R-Type
** File description:
** LibraryManager.hpp, declaration of dynamic library manager
*/
 
/*
** MIT License
**
** Copyright (c) 2025 Robin Toillon
**
** 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 RTYPE_LIBRARYMANAGER_HPP_
    #define RTYPE_LIBRARYMANAGER_HPP_
 
    #include "RType/Error.hpp"
    #include "RType/System/DynamicLibrary.hpp"
 
    #include <expected>
    #include <memory>
    #include <shared_mutex>
    #include <string>
    #include <string_view>
    #include <unordered_map>
 
namespace rtp::sys
{
    class LibraryManager final {
        public:
            LibraryManager(void) = default;
            ~LibraryManager() noexcept = default;
 
            LibraryManager(const LibraryManager &) = delete;
            LibraryManager &operator=(const LibraryManager &) = delete;
 
            LibraryManager(LibraryManager &&) noexcept = delete;
            LibraryManager &operator=(LibraryManager &&) noexcept = delete;
 
            [[nodiscard]]
            auto load(std::string_view path)
                -> std::expected<const DynamicLibrary *, rtp::Error>;
 
            [[nodiscard]]
            auto loadShared(std::string_view path)
                -> std::expected<std::shared_ptr<DynamicLibrary>, rtp::Error>;
 
            static auto loadStandalone(std::string_view path)
                -> std::expected<std::unique_ptr<DynamicLibrary>, rtp::Error>;
 
        private:
            std::unordered_map<std::string,
                               std::shared_ptr<DynamicLibrary>> _libraries;
            std::shared_mutex _mutex; 
        private:
            [[nodiscard]]
            auto getOrLoadInternal(std::string_view path)
                -> std::expected<std::shared_ptr<DynamicLibrary>,
                                 rtp::Error>;
 
    };
}
 
#endif /* !RTYPE_LIBRARYMANAGER_HPP_ */