coroutine/detail/setup.hpp

0001
0002 //          Copyright Oliver Kowalke 2009.
0003 // Distributed under the Boost Software License, Version 1.0.
0004 //    (See accompanying file LICENSE_1_0.txt or copy at
0005 //          http://www.boost.org/LICENSE_1_0.txt)
0006
0007 #ifndef BOOST_COROUTINES_DETAIL_SETUP_H
0008 #define BOOST_COROUTINES_DETAIL_SETUP_H
0009
0010 #include <boost/assert.hpp>
0011 #include <boost/config.hpp>
0012 #include <boost/move/move.hpp>
0013 #include <boost/type_traits/decay.hpp>
0014 #include <boost/type_traits/is_convertible.hpp>
0015 #include <boost/type_traits/is_same.hpp>
0016
0017 #include <boost/coroutine/attributes.hpp>
0018 #include <boost/coroutine/detail/coroutine_context.hpp>
0019 #include <boost/coroutine/detail/flags.hpp>
0020
0021 #ifdef BOOST_HAS_ABI_HEADERS
0022 #  include BOOST_ABI_PREFIX
0023 #endif
0024
0025 namespace boost {
0026 namespace coroutines {
0027 namespace detail {
0028
0029 template< typename Fn >
0030 struct setup
0031 {
0032     struct dummy {};
0033
0034     Fn                      fn;
0035     coroutine_context   *   caller;
0036     coroutine_context   *   callee;
0037     attributes              attr;
0038
0039 #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
0040     setup( Fn fn_,
0041            coroutine_context * caller_,
0042            coroutine_context * callee_,
0043            attributes const& attr_) :
0044         fn( boost::forward< Fn >( fn_) ),
0045         caller( caller_),
0046         callee( callee_),
0047         attr( attr_)
0048     {}
0049 #endif
0050     setup( BOOST_RV_REF( Fn) fn_,
0051            coroutine_context * caller_,
0052            coroutine_context * callee_,
0053            attributes const& attr_,
0054            typename disable_if<
0055                is_same< typename decay< Fn >::type, setup >,
0056                dummy*
0057            >::type = 0) :
0058 #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
0059         fn( fn_),
0060 #else
0061         fn( boost::forward< Fn >( fn_) ),
0062 #endif
0063         caller( caller_),
0064         callee( callee_),
0065         attr( attr_)
0066     {}
0067 };
0068
0069 }}}
0070
0071 #ifdef BOOST_HAS_ABI_HEADERS
0072 #  include BOOST_ABI_SUFFIX
0073 #endif
0074
0075 #endif // BOOST_COROUTINES_DETAIL_SETUP_H