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construct/include/ircd/mods/import_shared.h

58 lines
1.7 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_MODS_IMPORT_SHARED_H
namespace ircd::mods
{
template<class T> struct import_shared;
}
/// Convenience for importing an std::shared_ptr<T> from a loaded lib
///
template<class T>
struct ircd::mods::import_shared
:import<std::shared_ptr<T>>
,std::shared_ptr<T>
{
using std::shared_ptr<T>::get;
using std::shared_ptr<T>::operator bool;
using std::shared_ptr<T>::operator->;
using std::shared_ptr<T>::operator*;
operator const T &() const { return std::shared_ptr<T>::operator*(); }
operator T &() { return std::shared_ptr<T>::operator*(); }
import_shared() = default;
import_shared(module, const string_view &symname);
import_shared(const string_view &modname, const string_view &symname);
};
template<class T>
ircd::mods::import_shared<T>::import_shared(const string_view &modname,
const string_view &symname)
:import_shared
{
module(modname), symname
}
{}
template<class T>
ircd::mods::import_shared<T>::import_shared(module module,
const string_view &symname)
:import<std::shared_ptr<T>>
{
module, symname
}
,std::shared_ptr<T>
{
import<std::shared_ptr<T>>::operator*()
}{}