mirror of
https://github.com/matrix-construct/construct
synced 2024-07-02 00:38:24 +02:00
146 lines
3.9 KiB
C++
146 lines
3.9 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 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.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_MODS_H
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namespace ircd {
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namespace mapi {
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using magic_t = uint16_t;
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using version_t = uint16_t;
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struct header;
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} // namespace mapi
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} // namespace ircd
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namespace ircd {
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namespace mods {
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using mapi::magic_t;
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using mapi::version_t;
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IRCD_EXCEPTION(ircd::error, error)
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IRCD_EXCEPTION(error, filesystem_error)
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IRCD_EXCEPTION(error, invalid_export)
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extern struct log::log log;
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struct paths
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:std::vector<std::string>
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{
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bool added(const std::string &dir) const;
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bool del(const std::string &dir);
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bool add(const std::string &dir, std::nothrow_t);
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bool add(const std::string &dir);
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paths();
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}
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extern paths;
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struct mod;
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struct module
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:std::shared_ptr<mod>
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{
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std::string name() const;
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std::string path() const;
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bool has(const std::string &name) const;
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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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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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module() = default;
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module(const std::string &name);
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~module() noexcept;
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};
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template<> const uint8_t *module::ptr<const uint8_t>(const std::string &name) const;
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template<> uint8_t *module::ptr<uint8_t>(const std::string &name);
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std::vector<std::string> symbols(const std::string &fullpath, const std::string §ion);
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std::vector<std::string> symbols(const std::string &fullpath);
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std::vector<std::string> sections(const std::string &fullpath);
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// Find module names where symbol resides
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bool has_symbol(const std::string &name, const std::string &symbol);
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std::vector<std::string> find_symbol(const std::string &symbol);
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// returns dir/name of first dir containing 'name' (and this will be a loadable module)
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// Unlike libltdl, the reason each individual candidate failed is presented in a vector.
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std::string search(const std::string &name, std::vector<std::string> &why);
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std::string search(const std::string &name);
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// Potential modules available to load
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std::forward_list<std::string> available();
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bool available(const std::string &name);
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bool loaded(const std::string &name);
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// Initialization and destruction singleton held by ircd::main()
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struct init
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{
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init();
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~init() noexcept;
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};
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} // namespace mods
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} // namespace ircd
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namespace ircd {
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using mods::module; // Bring struct module into main ircd::
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} // namespace ircd
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template<class T>
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T &
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ircd::mods::module::get(const std::string &name)
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{
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return *ptr<T>(name);
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}
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template<class T>
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const T &
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ircd::mods::module::get(const std::string &name)
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const
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{
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return *ptr<T>(name);
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}
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template<class T>
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T *
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ircd::mods::module::ptr(const std::string &name)
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{
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return reinterpret_cast<T *>(ptr<uint8_t>(name));
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}
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template<class T>
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const T *
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ircd::mods::module::ptr(const std::string &name)
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const
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{
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return reinterpret_cast<const T *>(ptr<const uint8_t>(name));
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}
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