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// Copyright Oliver Kowalke 2014.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_FIBER_DETAIL_WRAP_H
#define BOOST_FIBER_DETAIL_WRAP_H
#include <type_traits>
#include <boost/config.hpp>
#if defined(BOOST_NO_CXX17_STD_INVOKE)
#include <boost/context/detail/invoke.hpp>
#endif
#if (BOOST_EXECUTION_CONTEXT==1)
# include <boost/context/execution_context.hpp>
#else
# include <boost/context/continuation.hpp>
#endif
#include <boost/fiber/detail/config.hpp>
#include <boost/fiber/detail/data.hpp>
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
namespace boost {
namespace fibers {
namespace detail {
#if (BOOST_EXECUTION_CONTEXT==1)
template< typename Fn1, typename Fn2, typename Tpl >
class wrapper {
private:
typename std::decay< Fn1 >::type fn1_;
typename std::decay< Fn2 >::type fn2_;
typename std::decay< Tpl >::type tpl_;
boost::context::execution_context ctx_;
public:
wrapper( Fn1 && fn1, Fn2 && fn2, Tpl && tpl,
boost::context::execution_context const& ctx) :
fn1_{ std::move( fn1) },
fn2_{ std::move( fn2) },
tpl_{ std::move( tpl) },
ctx_{ ctx } {
}
wrapper( wrapper const&) = delete;
wrapper & operator=( wrapper const&) = delete;
wrapper( wrapper && other) = default;
wrapper & operator=( wrapper && other) = default;
void operator()( void * vp) {
#if defined(BOOST_NO_CXX17_STD_INVOKE)
boost::context::detail::invoke( std::move( fn1_), fn2_, tpl_, ctx_, vp);
#else
std::invoke( std::move( fn1_), fn2_, tpl_, ctx_, vp);
#endif
}
};
template< typename Fn1, typename Fn2, typename Tpl >
wrapper< Fn1, Fn2, Tpl >
wrap( Fn1 && fn1, Fn2 && fn2, Tpl && tpl,
boost::context::execution_context const& ctx) {
return wrapper< Fn1, Fn2, Tpl >{
std::forward< Fn1 >( fn1),
std::forward< Fn2 >( fn2),
std::forward< Tpl >( tpl),
ctx };
}
#else
template< typename Fn1, typename Fn2, typename Tpl >
class wrapper {
private:
typename std::decay< Fn1 >::type fn1_;
typename std::decay< Fn2 >::type fn2_;
typename std::decay< Tpl >::type tpl_;
public:
wrapper( Fn1 && fn1, Fn2 && fn2, Tpl && tpl) :
fn1_{ std::move( fn1) },
fn2_{ std::move( fn2) },
tpl_{ std::move( tpl) } {
}
wrapper( wrapper const&) = delete;
wrapper & operator=( wrapper const&) = delete;
wrapper( wrapper && other) = default;
wrapper & operator=( wrapper && other) = default;
boost::context::continuation
operator()( boost::context::continuation && c) {
#if defined(BOOST_NO_CXX17_STD_INVOKE)
return boost::context::detail::invoke(
std::move( fn1_),
fn2_,
tpl_,
std::forward< boost::context::continuation >( c) );
#else
return std::invoke(
std::move( fn1_),
fn2_,
tpl_,
std::forward< boost::context::continuation >( c) );
#endif
}
};
template< typename Fn1, typename Fn2, typename Tpl >
wrapper< Fn1, Fn2, Tpl >
wrap( Fn1 && fn1, Fn2 && fn2, Tpl && tpl) {
return wrapper< Fn1, Fn2, Tpl >{
std::forward< Fn1 >( fn1),
std::forward< Fn2 >( fn2),
std::forward< Tpl >( tpl) };
}
#endif
}}}
#ifdef BOOST_HAS_ABI_HEADERS
#include BOOST_ABI_SUFFIX
#endif
#endif // BOOST_FIBER_DETAIL_WRAP_H
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