mirror of
https://github.com/matrix-construct/construct
synced 2024-07-05 18:18:35 +02:00
84 lines
3.5 KiB
C++
84 lines
3.5 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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namespace ircd::mods
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{
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struct mod;
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struct log::log extern log;
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extern const filesystem::path suffix;
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filesystem::path prefix_if_relative(const filesystem::path &path);
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filesystem::path postfixed(const filesystem::path &path);
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filesystem::path unpostfixed(const filesystem::path &path);
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std::string postfixed(const std::string &name);
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std::string unpostfixed(const std::string &name);
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template<class R, class F> R info(const filesystem::path &, F&& closure);
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std::vector<std::string> sections(const filesystem::path &path);
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std::vector<std::string> symbols(const filesystem::path &path);
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std::vector<std::string> symbols(const filesystem::path &path, const std::string §ion);
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std::unordered_map<std::string, std::string> mangles(const std::vector<std::string> &);
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std::unordered_map<std::string, std::string> mangles(const filesystem::path &path);
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std::unordered_map<std::string, std::string> mangles(const filesystem::path &path, const std::string §ion);
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// Get the full path of a [valid] available module by name
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filesystem::path fullpath(const std::string &name);
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// Checks if loadable module containing a mapi header (does not verify the magic)
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bool is_module(const filesystem::path &);
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bool is_module(const filesystem::path &, std::string &why);
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bool is_module(const filesystem::path &, std::nothrow_t);
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bool is_module(const std::string &fullpath, std::string &why);
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bool is_module(const std::string &fullpath, std::nothrow_t);
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bool is_module(const std::string &fullpath);
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}
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/// Internal module representation
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struct ircd::mods::mod
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:std::enable_shared_from_this<mod>
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{
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static std::stack<mod *> loading; // State of current dlopen() recursion.
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static std::map<std::string, mod *> loaded;
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filesystem::path path;
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load_mode::type mode;
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std::deque<mod *> children;
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std::unordered_map<std::string, std::string> mangles;
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boost::dll::shared_library handle;
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const std::string _name;
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const std::string _location;
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mapi::header *header;
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// Metadata
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auto &operator[](const std::string &s) const { return header->meta.operator[](s); }
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auto &operator[](const std::string &s) { return header->meta.operator[](s); }
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auto &name() const { return _name; }
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auto &location() const { return _location; }
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auto &version() const { return header->version; }
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auto &description() const { return (*this)["description"]; }
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const std::string &mangle(const std::string &name) const;
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bool has(const std::string &name) const;
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template<class T> const T &get(const std::string &name) const;
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template<class T> T &get(const std::string &name);
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template<class T = uint8_t> const T *ptr(const std::string &name) const;
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template<class T = uint8_t> T *ptr(const std::string &name);
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bool unload();
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mod(const filesystem::path &,
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const load_mode::type & = load_mode::rtld_local | load_mode::rtld_now);
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~mod() noexcept;
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};
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