mirror of
https://github.com/matrix-construct/construct
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107 lines
2.8 KiB
C++
107 lines
2.8 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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#pragma once
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#define HAVE_IRCD_MODS_MODS_H
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/// Modules system
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namespace ircd::mods
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{
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struct mod;
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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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IRCD_EXCEPTION(error, expired_symbol)
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IRCD_EXCEPTION(error, undefined_symbol)
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string_view name(const mod &);
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string_view path(const mod &);
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bool has(const mod &, const string_view &sym);
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template<class T = uint8_t> const T *ptr(const mod &, const string_view &sym);
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template<class T = uint8_t> T *ptr(mod &, const string_view &sym);
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template<class T> const T &get(const mod &, const string_view &sym);
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template<class T> T &get(mod &, const string_view &sym);
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}
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#include "paths.h"
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#include "symbols.h"
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#include "module.h"
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#include "sym_ptr.h"
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#include "import.h"
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#include "import_shared.h"
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// misc util
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namespace ircd::mods
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{
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bool loaded(const string_view &name);
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bool available(const string_view &name);
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bool is_module(const string_view &fullpath);
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bool is_module(const string_view &fullpath, std::nothrow_t);
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bool is_module(const string_view &fullpath, std::string &why);
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// returns dir/name of first dir containing 'name' (and this will be
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// a loadable module). Unlike libltdl, the reason each individual
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// candidate failed is presented in a vector.
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std::string search(const string_view &name, std::vector<std::string> &why);
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std::string search(const string_view &name);
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// Potential modules available to load
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std::forward_list<std::string> available();
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}
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// Exports down into ircd::
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namespace ircd
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{
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using mods::module;
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using mods::import;
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using mods::import_shared;
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}
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namespace ircd::mods
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{
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template<> const uint8_t *ptr<const uint8_t>(const mod &, const string_view &sym);
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template<> uint8_t *ptr<uint8_t>(mod &, const string_view &sym);
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}
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template<class T>
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T &
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ircd::mods::get(mod &mod,
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const string_view &sym)
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{
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return *ptr<T>(mod, sym);
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}
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template<class T>
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const T &
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ircd::mods::get(const mod &mod,
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const string_view &sym)
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{
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return *ptr<T>(mod, sym);
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}
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template<class T>
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T *
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ircd::mods::ptr(mod &mod,
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const string_view &sym)
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{
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return reinterpret_cast<T *>(ptr<uint8_t>(mod, sym));
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}
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template<class T>
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const T *
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ircd::mods::ptr(const mod &mod,
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const string_view &sym)
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{
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return reinterpret_cast<const T *>(ptr<const uint8_t>(mod, sym));
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}
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